Top Software Developers in the United States
List of the Best US Custom Software Developers

ITSTEADY is an international multi-disciplinary custom software development company that specializes in delivering complex enterprise solutions based on .NET, SharePoint, Dynamics 365, Office 365, Azure, Microsoft 365, Power BI, iOS, Android, React, Angular, Node, etc. ITSTEADY offers solid expertise and a proven track record of delivering end-to-end solutions in a number of areas: Microsoft Software Consulting We are always available for a thorough analysis of your business needs and laying out a roadmap for continuous improvement. Custom Software Development We use the most reliable and scalable technologies to design and develop bespoke software solutions such as powerful intranets, CRM, and ERP systems. Business Process Automation We help businesses, big and small, to boost their workflow efficiency through advanced business process automation, monitoring, and reporting. Mobile Application Development We uplift productivity of business processes through cross-platform and native mobile apps that augment and expand the functionality of enterprise systems. Legacy Software Migration We transform old software by wrapping its business logic into modern technology and fully integrating it with your software environment. Software Integration We bridge existing gaps between business applications, making for faster document exchange, greater transparency, and automation of daily routines.
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$5,000 +
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10 - 49
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$25 - $49 / hr
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US, Las Vegas
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IWebSquare was founded in Massachusetts in 2000 as a full-service software consultancy. We’re software developers, design thinkers, app developers, marketers, and security experts. Over the past decades, we’ve automated business processes, brought innovative ideas to market, and built large scale dynamic infrastructures. Our core areas of expertise are B2B & B2C e-commerce. We have both built scalable solutions from scratch as well as helped clients improve on existing solutions. As a leading Microsoft specialist, we have helped clients leverage Microsoft NAV and Dynamics 365, by connecting and centralizing both business logic and data. We make e-commerce solutions that delivers results, and long term relationships that last years.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, Waltham
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We provide world-class technology engineering services in various disciplines, ranging from software development of mission critical applications and systems, to data analytics and leading edge IoT services, as well as Cloud infrastructure support services.
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$75,000 +
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50 - 249
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$100 - $149 / hr
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US, Santa Monica
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Jackrabbit is a technology consulting firm that helps clients identify and create digital products that solve their business problems.
We bring value to customers through product design focused on your business goals and top-notch software development expertise. We’ve worked with clients from a wide variety of industries, including healthcare, education, and government.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, Austin
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$25,000 +
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50 - 249
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$50 - $99 / hr
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US, New York City
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Zivtech, founded in 2008, is a Philadelphia web design and web development shop. We love open source because it helps us do amazing things for our clients and gives them the freedom to innovate and grow. Zivtech works with healthcare, pharmaceuticals, education, publishing, government, startups, and non-profits. Zivtech also partners with other industry leading design and development firms to deliver reliable websites and web applications to organizations worldwide. The Hebrew term “ziv” translates to the light that comes from a candle: radiance, beauty, and seeing something new.
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$25,000 +
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10 - 49
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$50 - $99 / hr
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US, Brooklyn
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Jets Technologies is a custom software development firm which works to help integrate your systems, optimize your workflows, and maximize the efficiency of your business or organization. With every project we look to generalize your code to make for faster development, along with ensuring compatibility for every device type, and we follow a popular style guide when writing our code. What this means is that even if we're not the people you wish to continue with on your project, we can easily pick it up, hand it over to you, and allow for the next set of developers to see clearly where everything lies. Our applications are designed to work on every one of your platforms, from desktop, to mobile and tablet.
Along with our practices that we follow here at Jets, we look to ensure satisfaction with our customers all throughout the development process. Whether it be weekly releases, monthly releases, snapshots. We work to your desire. Whether it be consulting, system integration, or application development, we're prepared for any job.
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$5,000 +
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2 - 9
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$150 - $199 / hr
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US, Fresno
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JiffWeb Developer Inc. is a global IT solutions company with over 9 years of experience. We provide full-cycle services in the areas of software development, web-based enterprise solutions, web application and app development.
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Undisclosed
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50 - 249
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Undisclosed / hr
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US, Brea
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Your number one source for cutting-edge web and software design, robotics, or pretty much any tech project you could send our way! Our goal is to help you take your business to the next level by providing you with the latest in web and systems design. Jimnio offers custom web design, custom web applications, professional graphic design, and internet marketing services (SEO, Social Media, Email Marketing, and Blogging).
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$1,000 +
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2 - 9
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$50 - $99 / hr
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US, Pueblo
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Josh Software empathizes with the ever-changing architecture and empowers its customers by envisioning scalable solutions. We provide future-ready tech solutions based on an in-depth understanding of sectors and their business challenge for large and growth-stage businesses. We believe in open communication with our customers to understand and provide feasible and transparent tech solutions, supported by lean processes and performance visibility.
Some of our key clients have been BlueShift Labs, DealSignal, BrandScope, Go-jek, TourConnect, Phalcomm, and many others spread across India, the US, Europe, Singapore, and Australia. Josh as a brand has handpicked each member of its team with only one criterion- a hunger to develop path-breaking code! Josh has a core leadership team of experts across specific domains of its business to ensure high standards of delivery to our customers.
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$50,000 +
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250 - 999
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$100 - $149 / hr
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US, Plano
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View our portfolio or visit our website to read more about our capabilities and past work, but our expertise lies in areas including:
• Complex IT integration solutions
• Mobile and web development
• Big Data analysis, AI/ML
• Branding, UI/UX design
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$10,000 +
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10 - 49
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$25 - $49 / hr
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US, Aventura
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ASSESS
Our team is committed to spending as much time as needed to ensure 100% satisfaction.
DEVELOP
We strive to achieve 100% satisfaction. We pride ourselves on continually achieving 100% client satisfaction.
LAUNCH
We are there every step of the way to ensure your customers never leave your site feeling frustrated.
Through Analysis + Practical Innovation
Our project development process involves total transparency, continuous collaboration, and a surgical focus on supporting what drives your business.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Grand Forks
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Kadro is a software engineering firm that delivers B2C/B2B eCommerce solutions on Magento Commerce, as well as facilitating brand participation on marketplaces via its marketplace integration product/services. Kadro provides a full range of eCommerce development and integration services including:
- eCommerce strategy and consulting
- B2C and B2B eCommerce website design, development, testing, and support
- Magento Commerce 2 integration, custom development, and support
- ERP, OMS, PIM, and CRM integrations
- Marketplace integration and onboarding: eBay, Amazon, Walmart
- Mobile commerce and Responsive Web Design
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$50,000 +
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10 - 49
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$150 - $199 / hr
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US, Raleigh
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Having a background in mining industry, KAI Software has been working 20 years with large corporations automating their working process. Right now we are bringing this experience to our client's projects, which includes b2b and b2b2c software development.
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$50,000 +
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50 - 249
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$100 - $149 / hr
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US, New York City
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A boutique consultancy specializing in Predictive Analytics, Artificial Intelligence, Machine Learning, Deep Learning, Big Data, and Digital Transformation solutions for mid- and large-size enterprises. Our clients are major players in the financial services, insurance, health care, and utilities industries.
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$5,000 +
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2 - 9
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$100 - $149 / hr
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US, Jupiter
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Kellton Tech is a ‘Born Digital’ technology consulting and services company founded on the belief ‘Infinite Possibilities with Technology.’ We empower disruptive growth and turn businesses into ‘Digital and Smart Enterprises’ of tomorrow. Leveraging technology as a competitive differentiator for success, we engineer unique and business-specific custom IT solutions for organizations across scale and industry verticals. With in-depth domain knowledge across industries such as Insurance, Financial Services, Real-Estate, and Non-Profit, we have led successful digital transformation journeys for businesses ranging from Small and Medium Enterprises (SMEs) to Fortune 500 companies. Kellton Tech’s core services encompass custom software development, e-commerce development, enterprise app modernization, frameworks and CMS development, and application platform development. Our workforce of dedicated ‘Kelltonites’ operational across North America, Europe, and Asia-Pacific, is consistently on the lookout for the next exciting challenge.
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$25,000 +
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1,000 - 9,999
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$25 - $49 / hr
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US, Reston
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$10,000 +
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250 - 999
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$50 - $99 / hr
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US, Louisville
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Kenzan is a software engineering and full service digital consulting firm that provides customized, end-to-end solutions that align technical strategy with business goals. Combining leadership with technical expertise, Kenzan works with partners and clients to craft solutions that leverage cutting-edge technology, from ideation to development and delivery.
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Undisclosed
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50 - 249
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Undisclosed / hr
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US, Pawtucket
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Keystone’s focus is in the development of superior information management solutions for municipal and county governments, and public school districts, currently targeting the states of New Jersey, Pennsylvania, Virginia, North Carolina, Missouri and Rhode Island. Keystone Information Systems is a multi-platform, service-oriented software developer and systems integrator specializing in the K-12 public school district and municipal / county government administration markets.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Maple Shade
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Killer Mobile ® Software + Development Company has been developing cutting edge, quality mobile applications since 2003, but our experience in the mobile industry reaches back much farther than this. Our team consists of Mobile Development Professionals with over 40 combined years experience, coding some of the most well known mobile software around. However, writing code is just half the story. We have our finger on the pulse of this ever-changing industry & offer consultation services to help you break into the the exciting world of mobile or if you're already in it, we can help your business reach new heights. We offer Software Development & Consultation in the following areas: Symbian C++ (S60) Windows Mobile Android iPhone QT Maemo/Meego Blackberry Java (MIDP 1.0 & MIDP 2.0, J2ME Polish) OTA Application Delivery SMS Systems & Custom SMS apps Mobile Security & Tracking Solutions Mobile GPS
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Undisclosed
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2 - 9
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$25 - $49 / hr
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US, Henderson
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Kirusoft Dev. grows businesses using software. We create custom software to automate the day-to-day activities of your business. In 2019 alone, we have helped over a dozen businesses see 10x revenue growth. Join them by visiting kirusoft.com to schedule a free consultation.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, Atlanta
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We accomplish this by investing in customer relationships, getting to the root of digital workplace problems and designing intranet solutions that work for the organization and its users.
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$10,000 +
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2 - 9
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$150 - $199 / hr
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US, San Diego
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A digital marketing agency meets the needs of your business, from managing social media to managing Google Ads campaigns, optimizing your website, and providing server management services. Therefore, to meet your company's demand, KleenSoft is ready to take on all the constraints your company requires to perform all activities with our expertise in this field.
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$1,000 +
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10 - 49
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$25 - $49 / hr
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US, New York City
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Kliento Technologies Pvt. Ltd. is the IT solution provider, we are the blend of experience and expertise with deep in-build knowledge. The companies are moving towards digital age that mark their competitive advancement in the new era. We ignite their existence with the technological solutions around Digital Transformation, Cloud Services, IoT, ChatBots, Mobility solutions, and business solutions around Salesforce, Design Engineering, Business Analytics, and Application Support & Maintenance.
Being present in the U.S.A, India and Singapore with the development centre in the IT hub, Noida, we provide the IT consulting for the customer-facing technological solutions with front-end and back-end complete support. Kliento brings the best innovative IT technology solution to the enterprises in varying industries that are transforming digitally.
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$1,000 +
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10 - 49
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< $25 / hr
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US, Paramus
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Klopotek's Product Planning and Management system (PPM) enables publishers and media companies to optimize the management of internal and external processes. Publishers of every size – from small publishers to global media corporations – plan, manage and market their complete print and digital product portfolios with PPM. With the support of modern workflows, PPM tools help to develop products and to turn content into business.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Parsippany-Troy Hills
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Knocknock Games is an independent game development studio with R&D Center in Eastern Europe and Representative Office in San Francisco, CA. Our team combines 30+ talented developers. There are game industry veterans with more than 12 years of experience and creativity and passion of middle-level developers. We develop and produce games for hire as well as work on our own projects. We offer:
- Game prototyping
- Game Design and Story Writing activities
- Concept art and in-game content creation
- Development Activities
- Release consulting services
- Server backend software development
- Post-release support
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$5,000 +
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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 are constantly building connections based on customer demand. Contact us to request a new connection. We frequently work with developers and software providers to build new connections. If your application isn’t listed we can build a connection to most APIs in 10-30 days.
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$5,000 +
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2 - 9
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$100 - $149 / hr
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US, Portland
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Kott Software is a part of Kott Group of Companies, and is a fast growing technology firm with more than 100 clients, support offices in 4 countries and customers in 10 countries spread across 4 continents. We deliver amazing results, creating and building the next generation business solutions whether for the cloud or mobile. Kott Software is a global provider of strategic offshore software development services which includes Consulting, Development, Testing, Maintenance and Support for custom application development. The company's area of expertise lies in developing Cloud, SaaS and Mobile applications, Product Engineering, Platform migration and Enterprise Business Solutions. Kott Software is a long term partner you can trust.
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$50,000 +
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50 - 249
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< $25 / hr
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US, Gaithersburg
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$100,000 +
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50 - 249
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$150 - $199 / hr
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US, Wilmington
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Our clients are spread across multiple Industry verticals like BFSI, Government, Manufacturing, Healthcare, Retail, Oil, Gas and Utility, Education, Entertainment and Technology. Our operations revolve around providing IT Services, Consultation and Solutions via On-site, Off-shore and Hybrid methodology
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$100,000 +
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250 - 999
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$25 - $49 / hr
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US, Iselin
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Kunz, Leigh & Associates is a custom software development and business consulting company comprised of over 100 individuals who are dedicated to providing creative and disruptive solutions and opportunities for our employees, our clients, and the world. Here at KL&A, we love what we do. We design and develop innovative and creative solutions that help our clients improve their services to the community and further support their long-term goals.
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$10,000 +
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50 - 249
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$100 - $149 / hr
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US, Lathrup Village
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Kurve Marketing Group L.L.C. is a U.S based, world class digital marketing agency. We have been able to secure a standard and well–positioned office facility in a central business district in Boston – Massachusetts. We are a digital marketing company that is set to compete in the highly competitive digital marketing industry not only in the United States market, but also in the global market because our clientele base will not be restricted to just businesses and organizations in the United States. Kurve Marketing Group L.L.C. offers robust digital marketing services to both corporate organization and individuals.
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$1,000 +
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10 - 49
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$100 - $149 / hr
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US, Boston
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Our mission is to help businesses and startups of all sizes maximize their potential through custom software solutions. We take pride in the quality of our work and consider ourselves an extension of the businesses we humbly serve. Our goal is to create and develop the digital tools and assets needed for businesses to take their operations to a higher level. Our perspective on application development is unique and focuses on bringing expertise, reliability, maintainability, and value to our clients and their users.
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$25,000 +
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2 - 9
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$100 - $149 / hr
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US, Grand Rapids
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Since 2009, Labotec has successfully launched hundreds of businesses into the mobile world, dramatically increasing brand exposure and profit margins for you. Our clients are: Microsoft, American Airlines, Cancun International Airport, Porsche Design, Audi, and many more! Through intense research and development, our talented team creates mobile solutions for our partners and clients. We now stand as one of the most creative and successful mobile agencies. Labotec’s flexibility and a la carte approach allows our customers and partners to cost effectively implement a mobile marketing strategy that can help improve the way they do business. We’ll create an atmosphere of success for your business in the mobile space – an exploding market no business should ignore. Our team of mobile-savvy experts takes the time to research and understand every angle of your market, developing a strategy that increases your exposure and profit margins. Labotec understands that the mobile space will become an increasingly valuable part of oureveryday lives. We will be at the heart of that evolution, creating and keeping our finger on the pulse of mobile trends.
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Undisclosed
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2 - 9
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$50 - $99 / hr
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US, Aventura
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We help you achieve your growth goals by creating custom websites and digital marketing strategies that reach and engage your customers.
We have a proven, proprietary approach to designing and developing highly customized websites that ensures they are focused on getting meaningful results — and delivered on-time and on-budget.
Stop feeling overwhelmed and frustrated with your website, and start getting the value you need out of your most critical marketing tool. We’ll show you how.
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$10,000 +
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2 - 9
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$100 - $149 / hr
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US, Nashville
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We provide simple to complex solutions for companies from various industries such as Banking & Financial Services, Healthcare, Insurance, Travel & Hospitality, Market Research, Retail & ECommerce, Transportation, Manufacturing & Logistics, International Organisations, Energy, and High Tech.
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$25,000 +
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50 - 249
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$25 - $49 / hr
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US, Alexandria
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Langa is a software consulting company and a cadre of passionate full-stack developers. We partner with clients across the globe to deliver software solutions that address their toughest challenges. Our Node.js experts work directly with clients to build scalable, high-performance, enterprise-grade software. Our expert React.js developers deliver amazing web experiences using React.js, GraphQL, and other modern web technologies.
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$50,000 +
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2 - 9
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$100 - $149 / hr
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US, Norfolk
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We are a Dallas web design and software development company. We have a passion for developing software products and websites with the latest greatest tech. No egos, no bullcrap, just awesome teamwork. We partner with each of our clients to plan, prototype, design, build and market their startups or put a new face on their existing presence.
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$5,000 +
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2 - 9
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$100 - $149 / hr
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US, Fort Worth
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LaunchPad Lab is a Chicago-based software development agency that partners with businesses to transform their digital technology.
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$50,000 +
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10 - 49
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$150 - $199 / hr
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US, Chicago
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LayerCake Marketing is an Orange County, California based web marketing firm that focuses on maximizing engagement through online and print marketing. Expertise in online strategic consulting, branding on the web, website design, application development, and online marketing (search engine marketing, social media marketing). LayerCake also creates printed and conventional media pieces for clients — these layers help to make your business thrive in a competitive market.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Irvine
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