Top .NET Custom Software Development Companies in United States
List of the Best United States .NET Custom Software Development Firms

Programmers.io is an IBM business partner, Microsoft Gold Certified Company. Programmers are experts in both legacy (IBMi/AS400) and modern platforms.
What we do? (A) Affordable Software Teams Got a project? We’ve got the bandwidth to get the job done super fast while guaranteeing the best bang for your buck. Let us hook you up with RPG, PHP, Dot Net, RPGLE/AS 400 C++ Development, Analytics, Quality Assurance, Automation you-name-it, we’ve got you covered. Give us a call! Let’s figure out exactly what you need and how we can help. (B) Affordable Website Maintenance Subscription Service We deliver a no strings attached, monthly subscription service that fully manages your online business strategy for a fraction of the cost.
Competitive Analysis At Programmers.io, we begin by analyzing your competitors’ websites to discover how we can elevate your digital strategy. We design secure, mobile-optimized websites and focus on data-driven analytics to ensure a great customer experience. Here’s how it works: Enroll, pay-as-you-go, cancel anytime Mobile Optimized Business Website This is real: 56% (or more) of your audience visits using a mobile device. If your site doesn’t immediately load, if buttons and images look weird, your customers are gone. Every description, form, and picture must be optimized for mobile success. We can build you a new site or adapt an existing design that acts flawlessly across all devices. High ROI Internet Marketing We know where your competitors are spending their money, and we know exactly where you need the most help to improve your sales. We maintain extremely reasonable prices by investing only in targeted areas that you specifically need. Private Label Partner Service Discover how to partner with our awesome team so that you can deliver similar solutions to your customers. Our solutions are easily bundled and customized as private label services.
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$1,000 +
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10 - 49
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$25 - $49 / hr
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US, Dallas
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QuickSoft specializes in finding innovative solutions to meet your unique business challenges. From platform integration to mobile app design to customized business applications, QuickSoft will develop your solution in the most efficient manner possible. Our dedicated team of engineers will vet your project for viability, ask poignant questions, and present multiple solutions based on our deep understanding of your project. Once the project is green-lit, we put communication in the forefront. You are given regular updates with approvals required at every stage of the process. This is how we ensure that your success is our success!
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$10,000 +
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2 - 9
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$100 - $149 / hr
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US, Los Angeles
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Ben West and Marshall Smith, two experienced software engineers, founded Radial Development Group in 2015. Ben and Marshall are determined to use their expertise to build a firm that leverages better project management, design process and strategic decision making, and a sustainable holistic culture that prioritizes not only the work, but also the people who do it
Radial Development Group believes that our work only has value after it has been delivered to our customers, their users, and their clients. Radial develops processes so that meaningful incremental improvements are made every two weeks.At Radial, our customers expect an ever-improving and evolving product delivered at regular intervals (e.g., twice a month) in a process that improves over time. Ultimately, this is what we provide to our customers: both their product and the process for improving that product.
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$5,000 +
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10 - 49
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$150 - $199 / hr
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US, Denver
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Radiansys Inc (founded 2007) is a technology company based in the San Francisco Bay Area. Our development center is located in Gurgaon, India. We provide technical expertise to startups, SMEs, and Fortune 500 companies in the US.
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$5,000 +
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50 - 249
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< $25 / hr
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US, San Francisco
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Since 1998, we have served a wide variety of clients, from start-ups to Fortune 1000 companies. Our success is due to our ability to quickly understand your audience and project requirements, and implement the ideal tools to achieve your communication, marketing, sales and technology goals
Sandcastle is a full-service web design and development company specializing in e-commerce, custom app development, mobile technology, hosting and maintenance. Since our founding in 2001, we've designed and developed websites and applications for companies in a wide variety of sectors at different stages of their growth. Our capabilities focus on creating platforms tailored to the specific needs of your business.
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$5,000 +
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2 - 9
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$100 - $149 / hr
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US, Seattle
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With our "100% Satisfaction" Policy, we deliver excellence to our customers and promise them the app/website of their dreams, so they can be sure they are in good hands.
Our team consists of diverse and talented people with years of experience in their chosen fields. Over the years we've built mobile apps and websites for many clients in a variety of industries. We don't just make the perfect product. We also involve our clients in the development process so you know what's being done.
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$10,000 +
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2 - 9
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$25 - $49 / hr
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US, Seattle
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Seasia is one of the leading organizations that provide new heights to the business process environments. We have a track record of success who takes a hands-on approach to build business opportunities. Grow the business footprint and generate bottom-line revenue for the company. We implement the best business development initiatives, which will push you to target more business propositions. We always show up with powerful, persuasive digital strategies and goals that can generate leads for you. We also collaborate with the businesses that need our support to ensure successful marketing implementations. From software developments, marketing to Artificial Intelligence implementations, we provide robust product solutions.
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$5,000 +
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250 - 999
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$25 - $49 / hr
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US, Emeryville
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We specialize in developing compelling web and mobile applications for our clients around the world. We enjoy the difficult and complex challenges of adapting to the ever-changing global markets.
Sedente is a well-known technology provider to help you get the most out of your applications. Our developers have years of experience with complex software development projects using Microsoft tools and technologies, allowing you to imagine, design and deploy solutions that meet your specific needs. Our vision is to satisfy our clients by integrating and optimizing different types of tools and systems. Our highly trained and experienced solutions specialists are able to provide you with the best web services you will ever use. We adapt to your development lifecycle to ensure a successful solution implementation.
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$5,000 +
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2 - 9
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$50 - $99 / hr
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US, Houston
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Segue Technologies Inc. provides reliable IT services to government, commercial and non-profit clients. Segue provides full system life cycle design and support; with expertise from requirements analysis to design and development, implementation and ongoing maintenance.
Segue specializes in supporting legacy enterprise systems while developing custom alternatives. Their focus on adapting innovative technologies to specific customer needs leads to optimal network engineering, system architecture and implementation, business intelligence and enterprise solutions. Since its founding in 1997, Segue has provided solutions that have supported a wide range of government and commercial projects using a "customer first" approach. This philosophy of working for our clients to achieve their goals has led to a long-standing Segue relationship dating back to the founding of the company.
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$5,000 +
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50 - 249
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$100 - $149 / hr
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US, Arlington
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Founded in 2014, we've grown from a small team of undecided computer science students pushing the boundaries of cutting-edge technology in Stanford dorms to a professional consulting firm of business strategists, software engineers and product designers providing comprehensive technology. consulting services from around the world.
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$50,000 +
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10 - 49
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$100 - $149 / hr
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US, Boston
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Sitka provides specialized software products and data management services that improve our communities, the economy and the environment. Sitka helps policymakers, program managers, and regulators focus on results.
Sitka Technology Group is pleased to announce that we are joining Environmental Science Associates (ESA). Founded in California in 1969, ESA has gradually grown to a team of more than 550 employee-owners providing planning, design, permitting, mitigation and habitat restoration services for projects serving communities, infrastructure systems, open space and wild lands. Over the past several years, ESA and Sitka have collaborated on work for several key clients, including the California Department of Water Resources (DWR) and Los Angeles World Airports (LAWA).
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$10,000 +
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10 - 49
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$50 - $99 / hr
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US, Portland
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SlideWave is committed to helping businesses make a positive impact on the world by creating apps that eliminate user frustration and return countless hours of precious time.
SlideWave was founded in 2014 by software and technology entrepreneur David Dashler. SlideWave is a custom application development firm that offers superior UX design that makes using software a pleasure. We serve companies that are ready to accelerate their business, empower their employees, and provide customers with a phenomenal brand experience. Above all, we're excited to work with companies who want to make a positive impact on the world.
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$25,000 +
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2 - 9
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$150 - $199 / hr
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US, Orlando
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SmartTek Solutions is a software development company that delivers software products, managed IT outsourcing services, and solution engineering to world-renowned customers.
Whether it's ERP implementation, VR training simulator, or eCommerce website development, we perceive each of our clients' requests with passion, creativity, and readiness to deliver incredible results.
Our customers are entrepreneurs, startups, and Fortune 500 companies from the US, Australia, and Western Europe. We make quality products, not just quality code.
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$10,000 +
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50 - 249
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$25 - $49 / hr
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Softacom is a full-cycle business app development (web & mobile development) provider for technology companies and startups primarily located in the US, EU, and the UK.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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US, Bellevue
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We currently work in 8 countries in the Americas and Europe and have offices in Mexico, Colombia, Canada, Chile and the UK.
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$10,000 +
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10 - 49
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$25 - $49 / hr
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US, San Diego
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Our key highlights are 365 x 24 x 7 SLA-driven support, multi-location implementation, end-to-end delivery with 360-degree support, universal presence in over 35+ countries, 250+ resources, 1000+ projects, 55000+ person-hours. As a modern IT organization, we strive hard to keep at pace with the most recent technologies, and our resources are well versed with the latest happenings in the IT world today. Our services and solutions are widely implemented, accepted, and appreciated in a wide range of industry domains like Sales & Distribution, Retail & FMCG, Shipping & Logistics, Education, Healthcare, Digital Media & Advertisement, Real Estate & Property Management, Energy & Utilities, Manufacturing.
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$10,000 +
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250 - 999
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$25 - $49 / hr
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IN, Ahmedabad
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A collaborative approach to innovation development. We are a comprehensive digital solution for technology companies, a digital partnership. Guided by a culture of continuous learning and a desire to stay ahead of the crowd.
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$10,000 +
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10 - 49
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$25 - $49 / hr
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US, San Francisco
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We have grown by focusing on user interface development. Based in Philadelphia, PA, and with two R&D offices in Eastern Europe, we are able to offer a "best-in-class" environment for knowledge sharing and collaboration at competitive prices.
At Speed & Function, we're committed to making it easy to work with us - whether that means ensuring smooth integration with your team, robust processes, or highly trained professionals who get things done right the first time.
Our unique value lies in our approach to development. By focusing on learning, feedback and transparency, we can achieve alignment with our customers (and deal with uncertainty and complexity) quickly, flexibly and easily.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, Philadelphia
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With more than 10 years of combined experience, we are a merger of two digital agencies, Spokes Labs, specializing in performance marketing, and Return On Web (ROW) Consulting, an ISO 9001: 2015 and award-winning top 20 digital transformation and technology solutions company. With more than 70 employees in offices in the San Francisco Bay Area and Pune, India, we are committed to changing the future of business.
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$1,000 +
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10 - 49
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$25 - $49 / hr
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We build modern web applications.Our small team has been working together since the mid-2000s, and officially as Square Mill Labs since 2010. We've worked with Fortune 500 companies, small startups, political campaigns, healthcare organizations, venture capital firms, fintech companies of all sizes and types. companies and organizations between
We develop long-term relationships with our clients and get the work done on time and on budget.We have extensive experience performing all phases of design and engineering for the following:Websites,Custom content management systems,Minimal viable products,Cloud-based applications for SaaS companies,Big data medical applications,Instant messaging between peer-to-peer nodes in high volume,Embedded Development.
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$25,000 +
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2 - 9
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$150 - $199 / hr
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US, Tampa
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SynergyTop is a leading IT services company that provides future-ready digital solutions and enables digital commerce for its enterprise customers.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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TDMK Digital is a full-service digital agency comprised of innovators, problem solvers, designers and engineers.
We were created to deliver inspiring digital user experiences, cutting-edge software technology and flexible solutions to commercial and government organizations of all shapes and sizes. Our specialized experience working with digital, device manufacturers, carriers, technology providers and major consumer brands to imagine and create the next generation of feature-rich user interfaces will bring the insight and expertise needed to execute projects and achieve business goals. TDMK Digital fulfills client orders for Fortune 500 brands and has experience producing digital products for small and large businesses worldwide. Our clients include the U.S. Census Bureau, U.S. Department of Defense, U.S. Department of Veterans Affairs, Amtrak and Verizon Wireless. TDMK Digital provides outstanding services across the full spectrum of digital user interaction and custom development services such as desktop, web, telematics and mobile applications. We are ready to take on large-scale projects and complex requirements.
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$25,000 +
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10 - 49
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$150 - $199 / hr
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US, Chantilly
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TechArk Solutions is an award-winning technology partner that helps clients reinvent their business with digital solutions.We're a team of innovators who care deeply about solving our clients' unique business challenges. With our headquarters in Norfolk, Virginia, and our 24/7 global team, our support, communication, and turnaround time are unmatched.
We offer a full portfolio of technology solutions including custom software development; native and cross-platform mobile app development; Cloud solutions; Adaptive, mobile-friendly website design; Website hosting and maintenance; UX and branding; Digital marketing; and more.Our work has been featured in the Los Angeles Times, The Virginian Pilot, Inside Business, Microsoft Mobile World Congress and on WPCentral.
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$5,000 +
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50 - 249
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$100 - $149 / hr
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US, Norfolk
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TechAvidus provide tailored software, and web and mobile applications to small, medium, and large enterprises. Our work culture is based on the core philosophy of cooperation and collaboration. We at TechAvidus take the utmost care in dealing with our customers. When you work with us you get exactly what's needed to achieve your marketing and operational objectives, without any extra financial investment.
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$1,000 +
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50 - 249
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$25 - $49 / hr
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Technology Rivers promises transparency in everything we do for our customers. We share our development processes and strive for clear, open and honest communication. We make sure you always know exactly what's going on with your project.We are constantly improving our development processes so that we can deliver error-free solutions to clients quickly. We understand that faster time-to-market results in more revenue for our clients.
Technology Rivers is a D.C.-based software development agency dedicated to creating software solutions for startups and growing businesses that want to build high quality software at low cost, even if they have no technical expertise in software application development.Our experienced team of product managers, developers, designers and analysts work with you to help you imagine, design and create beautiful software products.
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$5,000 +
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10 - 49
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$50 - $99 / hr
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US, Reston
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We first found a way to fill the talent gap by creating Techtonic Apprenticeship, a fully paid and accredited software development program registered with the U.S. Department of Labor. Techtonic is based in Boulder, Colorado, supported by University Ventures, Zoma Capital and Yucatan Rock Ventures.
Founded in 2006, Techtonic is a leading partner in enterprise-grade software development, accelerated delivery and local specialist scalability. Our combination of delivering high-quality products, processes and people allows us to benefit customers at every stage of the digital transformation lifecycle. We can ramp up capacity and delivery quickly, enabling customers to accelerate product time to market and stay ahead of the competition in today's digital economy.
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$100,000 +
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50 - 249
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$100 - $149 / hr
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US, Denver
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Get the best digital solutions from the globally leading design and development agency. We are The Gray Bear, an award-winning development company based in the US. Over the past 8+ years, we have been working with numerous businesses on the design and development of digital products like websites, mobile applications, software, and other trending technologies.
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$5,000 +
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50 - 249
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< $25 / hr
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US, Austin
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We add value to your business through innovative expertise without losing focus on your customers.Helping customers reduce costs and improve efficiency, flexibility and scalability. We offer a model that allows them to move away from complex and inefficient IT environments.
At The App Master, we dream and create digital experiences that matter to thousands of users every day. We want to create lasting relationships with our customers by delivering exceptional, personalized experiences that meet their needs and expectations.We create IT experiences that are more scalable, flexible, reliable and responsive to business needs!
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$5,000 +
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10 - 49
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$25 - $49 / hr
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US, Fort Walton Beach
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Intuitive navigation, mobile-friendly web design, micro-animations, and action-based calls to action are examples of the elements that make up user experience (UX) and user interface (UI) design. We make sure it's easy for your users to find what they're looking for. We start with your business goals and then provide the right scalable solution.
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$10,000 +
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10 - 49
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$150 - $199 / hr
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US, Atlanta
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Gnar is a Boston-based software development company offering a bug-free guarantee. Gnar's team of U.S.-based experts is fully committed to developing enterprise, mobile, and web applications using the most efficient technologies to solve complex software problems, including React, React Native, and Ruby on Rails, as well as e-commerce integration.
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$5,000 +
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10 - 49
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$150 - $199 / hr
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US, Chicago
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Tactile uses human-centered design best practices that combine research, digital strategy, user experience and visual design to help our customers think outside the box.
Tactile Group is a full-service digital agency that has been interacting with technology since 2004. We work with local, state and federal government, as well as corporate and nonprofit clients to help solve complex business problems.Tactile understands the ever-changing cybersecurity landscape in the technology sector and knows how to build compliant cloud applications. We have experience in maintaining, updating and improving existing websites to best meet the needs of our clients and their users.
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$50,000 +
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10 - 49
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$150 - $199 / hr
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US, Philadelphia
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We are a team of dedicated members who are driven by nothing less than a passion for quality. With so many websites available online that claim to provide similar services, we understand that only the quality of our work can help us outperform our competitors.
Our team consists of experienced professionals from major national and international firms. Most of us have been in the field for many yWe have had years of trusted relationships with Young Ventures as well as international conglomerates. Our impeccable track record of service and wide range of clients tells the story of our success.ears and thus have a strategic understanding of what lies ahead. Although we are not a very large team, at Trancis we have an open culture where everyone can contribute and is not shy about sharing any ideas or opinions, as creativity is always welcome.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, Dallas
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TucsonBizz is an expert in five keys areas of technology, including new application development, Seo Services, web design, Digital Marketing, eCommerce Website Development, Web Development, project management, as well as mobile applications for Android and iOS. Our team also has vast experience developing Business Intelligence (BI), customer relationship management systems and managing projects using our cloud-based project management support system.
TucsonBizz is a leading software and mobile app development company in Tucson, Arizona. We can help to build custom software for enterprise and startup businesses. We develop web, software, and mobile applications that help our customers maintain and grow their small business with the latest and best-in-class technology solutions.
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$1,000 +
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10 - 49
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< $25 / hr
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US, Tucson
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We are TulaCo, a software development company based in LA, USA. We use our industry expertise & experience to help companies get their products off the ground.
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$50,000 +
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50 - 249
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$50 - $99 / hr
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US, Santa Monica
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Vrinsoft Technology is a leading software & app development company in india since decades. It is ISO 9001:2008 certified IT company with major team members certified with Microsoft & Hubspot. From 2009 the company grew tremendously with its highly efficient work culture and strong result driven model.
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$10,000 +
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50 - 249
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< $25 / hr
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Since 2003, we have been meeting the needs of our clients and marketing agencies with a professional and experienced approach to their websites, web and mobile applications. We have creative, smart and dedicated team members who enjoy doing high quality work for any organization looking for technical solutions to their challenges.
We work with you to uncover the important details of your project to offer effective solutions. Messaging, sales flow, lead generation and technology all need to work in harmony. From marketing automation and sales funnels to custom applications, we provide your site with a full cycle of integration with your company's needs and your customers' expectations.Our clients want Web sites that do more than just take up space. They're asking for Web sites that become the center of their marketing efforts. They want strategic thinking, advanced solutions, and the ability to connect to applications to optimize internal business processes.
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$10,000 +
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10 - 49
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$50 - $99 / hr
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US, Dallas
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Technology in the software industry changes every day.Currently we offer services in Java, Ruby on Rails, PHP (Codeigniter & Laravel),React Native, React JS, Angular, Node JS, AWS services,Blockchain, Salesforce, Quality Analyst, Apache Offbiz.
We turn your ideas into reality.Webkorps is committed to providing state-of-the-art web development services to our clients all over the world. Backed by a team of highly skilled and experienced developers, we are able to expand such services using the most advanced technology.We are a team of young entrepreneurs who believe in creating a future with the right code. We have several highly skilled coders and programmers on our team. Focused on our individual customers, served by attentive management and people who relentlessly strive to achieve better results every time.
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$10,000 +
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50 - 249
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$25 - $49 / hr
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US, Philadelphia
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The secret to our clients' success lies in a unique development method called the DEV-IX Model. With this 9-step approach, we combine your goals with a strategic growth plan at every stage of the development process. This not only ensures a highly effective solution, but also ensures that your project is always delivered on time and on budget.
We take a results-oriented approach to software development. This means that everything we develop is designed to grow your business.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, San Diego
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WeGotCode.com is a network of senior software developers in the Atlanta area, each with years of experience in desktop, web and mobile software development.Together, the WeGotCode.com team works to become the leading provider of specialized business software in Atlanta.We specialize in the Microsoft .NET development stack. We offer custom business software solutions for the web, PC, and now mobile devices, as well as systems integration, business intelligence and analytics, and cloud hosting and migration.
Welcome to WeGotCode., a provider of high-quality software services in Atlanta, Georgia. We specialize in full-stack programming: including interactive websites, enterprise applications, mobile dashboards, and even custom system integrations. Our state-of-the-art development process is designed to make your project a success, meeting your requirements and delivering on budget.Many business decision makers are intimidated by the scale and cost of technical projects. The industry as a whole suffers from failed implementations and budget overruns. We use our years of experience in the software industry to simplify the process by simplifying requirements and ensuring full transparency.
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$25,000 +
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2 - 9
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$100 - $149 / hr
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US, Atlanta
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WWG helps businesses add value through custom software development, product design, quality assurance and consulting services. Every team involved in business processes uses lean thinking principles and Agile methodology to set high standards for each project.
WWG offers consulting services to start-ups to help new companies discover their potential and find the right strategy for a smooth market entry and lower prototyping costs.WWG promotes sustainability, encourages data analytics, works to create digital experiences and embraces a culture of agile innovation. The company is expanding in terms of operational excellence and customer satisfaction.
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$50,000 +
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50 - 249
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$50 - $99 / hr
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US, Boston
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