Top Custom Software Development Companies
List of the Best Custom Software Developers

You're responsible for web-based revenue and reliability. You're not alone. You have us. We build relationships No web problem is too big if the team is tight. We build long-term relationships to solve complex web development problems. We bring expertise You may have a lead developer for your site or you may be it. Either way, when you bring us in, you bring in expertise.
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$5,000 +
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10 - 49
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$150 - $199 / hr
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US, Santa Cruz
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As an end-to-end IT solutions provider, we transform the corporate client's ideas into a stunning app since inception. We have assisted many startups and SMEs to grow by developing advanced technology solutions in the domains of mobile app, web, eCommerce, and IoT app development. Our in-house teams of professionals are well-versed in using the cutting-edge tools for developing high-quality customized IT solutions. Headquartered in one of the most happening cities of India, Ahmedabad, we have an office at Delmar, USA for serving the international clients more effectively. Our approach to embracing emerging technologies like IoT, AR, VR, and AI have enabled us to provide futuristic app solutions in a cost-effective way. Quality-driven mobile app development for meeting the changing business requirements is our forte. Our array of services includes: Internet of Things- IoT, Enterprise Solutions, Mobile App development, AI App Development, Blockchain App Development
Solution Analysts is one of the top-notch IT solutions providers in USA and India. Initiating operations as a mobile app development company in 2011, we have set many milestones while gaining fame as a leading technology partner for startups, SMEs and big enterprises alike. We have embraced technological advancements in emerging technologies including AI, AR, VR, IoT, and blockchain to serve the global corporate clients with high-quality technological solutions in a cost-effective way.
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$5,000 +
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50 - 249
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$50 - $99 / hr
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US, Delmar
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Solutions for Accounting and CRM delivers integrated (or standalone) financial management and customer intelligence (CRM) software to help drive business growth. We offer award-winning consultancy, installation and support services to SMEs, larger multi-site companies and public sector organisations. We support clients across a broad range of market sectors, but have built a range of custom modules which enable us to serve schools, manufacturers, distributors, wholesalers and retailers.
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Undisclosed
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50 - 249
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Undisclosed / hr
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GB, Nottingham
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Focusing on a long-term partnership lets us get to the very core of the business and assist our clients to create market-dominant products (MAU>1M). We treat every project as it is our own. Our strategy is based on caring and providing exceptional quality regardless of whether our client is a startup or a well-known mature brand.
Solvd, Inc. is a software engineering company focused on Mobile and Web solutions as well as Quality Assurance for VC-backed startups and booming tech companies. Since 2011, we have built applications for a variety of fields including sports, healthcare, education, media, fintech, and logistics also providing a strong expertise in Software Testing in these domains. Depending on the needs and challenges of your business we can quickly scale your Development or QA team with professionals complementing the skill gaps in your staff or provide you with a dedicated team of brightest brains fully devoted to your project.
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$5,000 +
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250 - 999
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$25 - $49 / hr
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US, Roseville
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Whether you need custom-tailed e-commerce systems, innovative social networks, event management systems, fintech application, or a new CRM… whatever, our team can deliver a world-class product quickly, affordably, and in a way that addresses your business challenges.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, Newport Beach
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Source Allies is a local technical consultancy who values collaboration, craftsmanship, and an ownership mentality. We provide a home to our teammates where we encourage each other to grow not only technically, but as peers & consultants.
Our team is comprised of senior IT professionals whose industry background ranges from mortgage to health care and whose areas of technical and process specialization range from test driven software development to web services security.
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Undisclosed
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50 - 249
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Undisclosed / hr
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US, Urbandale
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SourceInfoTech was founded in 1999 with a goal to provide cost effective and quality IT solutions to various clients all over the world.We are a Global IT Services Company with focuses in Staff Augmentation and Fixed Priced Solutions in order to save you time and money. We are based out of New Jersey but have the ability to work globally. We have clients all over the United States and the common theme from them is that we provide Quality Services at an affordable price.
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Undisclosed
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50 - 249
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Undisclosed / hr
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US, Edison
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SourceFuse Inc. is transforming the way today’s most successful companies develop breakthrough roadmaps leveraging cloud-based technologies. A leading AWS Advanced Consulting Partner, SourceFuse has delivered over 600 AWS implementations that boost efficiency, ensures compliance, delivers actionable insights and lowers total cost of ownership. With 14 years of deep expertise, commitment to digital innovation, service excellence and customer success, we enable enterprises through application modernization and windows migration services of legacy workloads. Headquartered in the United States, SourceFuse has regional offices in UK, Australia, Hong Kong, and India.
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$10,000 +
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250 - 999
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$25 - $49 / hr
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US, Jacksonville Beach
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SOURCiS, Inc. is a Sacramento-based, web design, web development, medical tourism and web marketing company. We help businesses achieve their online goals.
We launch incredible Medical Marketing campaigns for various companies, international and domestic. Our team creates intuitive Software and Applications for various medical organizations. SOURCiS creates unique responsive properties that
drive valuable targeted traffic to your web properties. SOURCiS also has a deep understanding of marketing analytics, conversion rate optimization, landing page design and ppc management. SOURCiS has developed a leading patient CRM software that will allow you to schedule patients efficiently in a variety of disciplines including dental, plastic surgery, general operations, medical appointments, medical tourism, and more. Patient Management Software by SOURCiS was first developed to manage patients undergoing medical tourism. Since we continued to develop our program for our needs, it evolved into a sophisticated, full-fledged patient management software. After many iterations, this product is quite capable of providing robust and customized solutions for medical practitioners. This software product is capable of various industries including dental, medical and surgical.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Folsom
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IT solution provider with a focus on traditional bar code technology, RFID technology, process improvement, and equipment sales and service. At Southeast Solutions, we strive to deliver value along with superior service to our customers, with the necessary equipment, software solution development, and an in-house service and repair facility. From solution concept, design, development, and implementation our experienced team can deliver traditional, mobile, and wireless solutions.
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Undisclosed
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10 - 49
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Undisclosed / hr
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US, Athens
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SovTech is an end-to-end custom software development company that designs, builds, deploys and maintains mobile and web applications. This helps start-ups and corporates like you start, run and grow WORLD-CLASS businesses.
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$5,000 +
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50 - 249
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$25 - $49 / hr
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GB, London
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Being ahead of the technology curve is at our core. We work hard to acquire and develop outstanding talent and choose our partners carefully.
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$250,000 +
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50 - 249
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> $300 / hr
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GB, Manchester
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SPARK helps you launch a custom business tool you will be PROUD of! Our proven process helps match your business goals and budget with the experts needed to deliver. Reach out to SPARK to create your custom product or business workflow that will help your business thrive at the intersection of innovative and practical.
We are a business-first team that creates custom digital solutions for forward-thinking companies. We help our clients translate complex business requirements into simple, user-friendly systems and tools. We are experts in software development and design. We've made construction safer, facilities smarter, healthcare accessible, field workers connected, and manufacturing more efficient. (Just to name a few.) SPARK has helped over 150 unique clients become technology leaders (without having to hire it all in-house)!
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$10,000 +
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50 - 249
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$100 - $149 / hr
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US, Houston
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Sparkbox is a web design and development firm that leads the way toward a better web as we craft responsive websites and web applications—and empower you to do the same. We work with teams to create beautiful, valuable products that last and empower your team to own your application or website. Our expertise includes:
- Responsive Web Design
- Custom Web Application Development
- Accessibility
- Design Systems
- Security
- User Interface Design
- User Experience
- Content Strategy
- Mobile Commerce
- CMS Integration and Extension
- Team Education and Mentoring
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$50,000 +
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10 - 49
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$150 - $199 / hr
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US, Bellbrook
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Our small, laser focused team has successfully journeyed with hundreds of clients through the precarious lands of software development. We are meticulous in our preparation and highly-professional in our delivery. No matter the project, you can rely on Sparkfish to help your business towards optimal and innovative web and mobile solutions.
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$25,000 +
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10 - 49
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$150 - $199 / hr
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US, Chicago
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Spatial DNA provides strategic insights into the integration of spatial data and geographic science capabilities with corporate information systems. Our rich experience in systems architecture and data enables us to specify and build an open technical architecture that supports business needs now and into the future. We leverage mission-critical data, real-time sensor streams, web and cloud services, and legacy databases to create user-centered enterprise workflows supporting web and mobile users. Simplicity is built into our DNA – we design solutions that are simple to use and maintain that is adaptable to the future.
Location Analytics – our Location Analytics Practice leverages sensor networks (WiFi, Bluetooth, cellular, infrared) and our real-time locating service (branded as PeopleFlow.com) to position mobile devices, assets, people, and vehicles within defined spaces both indoors and outdoors to elicit patterns of behavior that are presented as footfall maps and metrics dashboards.
Enterprise Integration – our Enterprise Integration Practice focuses on exposing system end-points – be they legacy databases or cloud services – as simplified application programming interfaces (APIs) and connecting APIs into web and mobile-enabled enterprise workflows. Enterprise messaging between platforms such as Esri, work and asset management, and case/service management enables communication of key information, status, and the geo-processing of messages in-flight.
Strategic Consulting – our Strategic Consulting Practice supports managed services of client GIS infrastructure (including multi-tenant FME Cloud, Lucity CMMS, and Esri GIS services), business process and system design, research into technologies and approaches to improve operations efficiency for our clients, and the specification and acquisition of new technologies and capabilities into our clients’ environments.
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$10,000 +
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2 - 9
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$100 - $149 / hr
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CA, Toronto
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Our integrated process of strategy, design, and engineering has a proven record of delivering unique products with beauty and precision.
Our collaborative approach to problem-solving leverages years of experience bringing digital products to market. Whether you want to build the next ground-breaking mobile app, software product, or website, we provide a range of consulting, design, and development services to get the job done.
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Undisclosed
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2 - 9
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Undisclosed / hr
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US, Meridian
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Let us help you reach your goals with your customized software solution. There is no better time to give us a call.
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$5,000 +
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10 - 49
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$100 - $149 / hr
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US, Grandville
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Sphere Partners is a strategic technology partner offering consulting services, cutting-edge software development, expert engineering teams on-demand and enterprise platform implementations such as Monday.com, Netsuite, Salesforce, Google Cloud and Snowflake for companies seeking to innovate and transform in a demanding digital world. With a global team of business and technology consultants, solution creators, and engineers, Sphere delivers strategy, design, and software development to help organizations solve their technology challenges and improve productivity, enhance the user experience, and maximize growth. Sphere Partners has built innovative software solutions for industry leaders since 2005. With headquarters in Chicago and regional offices in New York, Miami, and Eastern Europe, Sphere is a global company with a local focus and a national presence. Sphere routinely helps a wide range of clients from start-ups to Fortune 100 by transforming initial visions into effective technological products. Our clients include: BuzzFeed, Tumblr, ING Bank, Subway, Beachbody, Groupon, Enova, Nokia, Morningstar, Sears, Gett, Hub Group, Sittercity, The Private Bank, Springleaf, TMX Finance, Berlingske Media, Kuoni, and Eligo Energy. Our consulting and development services include: Agile Mobile & Web Applications, DevOps Engineering, Atlassian Service & Support, Solution Architecture, Team Augmentation, Cloud Solutions, Advanced Analytics, Data Visualization, and UX / UI Design. We believe in the unlimited potential for new uses of open-source technologies. And we are true evangelists of a modern agile methodology that guides every step of our hybrid software development model.
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$10,000 +
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50 - 249
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Undisclosed / hr
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US, Northbrook
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Undisclosed
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2 - 9
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Undisclosed / hr
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CA, Montreal
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At Spieker Point, we believe that evidence-based decision making is the key to helping our customers excel in their market. We build enterprise software that uses predictive analytics and process automation techniques to help our customers get early warning of troubles ahead, and to avoid them while they are small and inexpensive. We start with a customer’s current data—data they already have—and use it to recognize emerging patterns, helping our customer steer towards better financial returns.
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Undisclosed
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10 - 49
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Undisclosed / hr
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CA, Edmonton
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We build business solutions and integrations into your website, to leverage the power of digital and automation, reducing administration & costs, improving data insights and accuracy and improving your conversion and profits. Through web development and application development services, we deliver software solutions around web technologies.
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$10,000 +
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10 - 49
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$100 - $149 / hr
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GB, Milton Keynes
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Spindle 360 is a branding company that merges design and marketing disciplines to create compelling new experiences. Their cohesive group of expert designers, marketers, and developers create, innovate, and push the boundaries to bring a unique and holistic approach to design and innovation; accelerating the success of their clients’ business. They offer innovative marketing and product consulting services to help companies of all sizes develop their products.
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$10,000 +
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10 - 49
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$100 - $149 / hr
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US, Georgetown
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Splash Factory is a full-service digital DevOps agency that specializes in creating innovative and impactful blockchain solutions for ICO or Token Sale projects, government, and enterprise level integrations.
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Undisclosed
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50 - 249
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Undisclosed / hr
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US, Woodbridge
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We are proud of our heritage and excel when it comes to supporting local businesses grow from a twinkle in your eye to a profitable organisation. Whether you need a full branding package, a website refresh or targeted marketing for your current site, our team of experts, alongside our carefully selected contractors can create a package that is tailored to suit both your specific requirements, and the budget you have available to achieve this.
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Undisclosed
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2 - 9
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Undisclosed / hr
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GB, Sheffield
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At Spotlight Data we aim to shine a light on structured and unstructured data across organisations. We develop enterprise ready systems that make sense of data, and provide meaningful insights to help improve decision making. Our Nanowire AI platform is split into two components: a modern, user friendly web panel and a scalable pipeline that processes the files. The interface can be used by non-technical staff, and so it can be used by anyone within a business both quickly and efficiently.
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Undisclosed
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10 - 49
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Undisclosed / hr
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GB, Nottingham
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We're expert app builders. We know good architecture and we know why it matters. Outsource your whole project to us or use us to augment your existing dev team. We love .NET, SQL Server, Azure Cloud and DevOps, and Vue.js.
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$10,000 +
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2 - 9
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$150 - $199 / hr
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US, Alpharetta
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We create and maintain web/mobile applications for startups, agencies and tech teams. We specialize in top-tier development using Ruby on Rails, iOS, Android, Angular, ReactJS & React Native. We build amazing, complex and challenging web and mobile apps using Agile and Lean methodologies. We’ve collaborated with entrepreneurs, industry leaders and public bodies to turn their exciting ideas into successful, user-friendly software. We are a bunch of lively tech savvys yet a perfect mix of cultures and perspectives allied by a desire to continue delivering the best quality apps ever to the pleased clients and we believe that the customer experience is the next competitive battleground.
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$5,000 +
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10 - 49
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$25 - $49 / hr
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US, Dublin
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SSD Software Solutions is a full service interactive development and design company specializing in back-end development, custom applications, design, software development, content management systems, support and maintenance, e-commerce web solutions, web tools and applications for any mobile device or tablet platforms. Based in Los Angeles California, and in business since 2005 SSD has built a sterling reputation off of the quality work and attentiveness to our client's needs. No other company can offer you the complete package of quality and service for a good price like SSD can.
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Undisclosed
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10 - 49
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$25 - $49 / hr
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US, Los Angeles
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Stackfee is a software development agency. We develop web, mobile, native applications and business intelligence solutions for businesses of all sizes
Software Development Agency - Stackfee
Stackfee is a software development agency. We develop web, mobile, native applications and business intelligence solutions for businesses
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$1,000 +
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2 - 9
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$50 - $99 / hr
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CA, Pointe-Claire
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Stambol is a Virtual Reality & Augmented Reality studio specializing in hyper-realistic immersive experiences. We employ a team of dedicated artists, designers and engineers with a proven track record of success. Our engineers have developed award-winning games at Electronic Arts and Ubisoft, and built core graphics technologies at Microsoft. Our artists and designers have collaborated with leaders in architecture, real estate development, and construction industries.
We create stunning, inspiring, and memorable virtual experiences. Starting with our incredibly real architectural renderings, 3D illustrations, models, and animations, Stambol has developed expertise in Virtual Reality (VR) and Augmented Reality (AR) that can service any need for visual communication. We provide the best experience for our clients by blurring the boundaries between art and engineering.
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$10,000 +
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10 - 49
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$100 - $149 / hr
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CA, Vancouver
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Star is a global team of builders. We connect strategy, design, and engineering services into a seamless workflow devised to build solutions with the right focus on impact, scalability, performance and prudence. We anchor everything we do in clear and compelling endgames to create superior solutions and commercial successes for you. Our delivery centers are located in Ukraine, Poland and Vietnam, but also ensure availability of near-shore team in our studios in US, Germany, UK, Denmark and Japan. Our 750 innovators and experts exist to make great ideas shine. Services:
- End-to-end Product Development
- Industrial and Digital Design
- Web and Mobile Engineering
- Cloud Engineering & DevOps
- Quality Assurance
- Embedded Software & Hardware Engineering
- Data Science
- Service Design & Storytelling
- Product Management
- Project Management
We were among nominated for Design UX award 2019 for our Flyone product: star.global/cases/flyon/
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Undisclosed
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250 - 999
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Undisclosed / hr
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US, Sunnyvale
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Star Knowledge is a results-driven global professional services company, providing a broad range of services and solutions in software, electrical and mechanical engineering and business consulting to help customers solve challenging and complex strategic business problems and create value. Our services encompass commercial practices from industries including high-tech, banking, retail, manufacturing, healthcare, media and entertainment and the public sector, with proven execution and project management skills enabling successful deployment of quality customer deliverables. Star Knowledge supports customers with highly experienced and skilled technical and business consultants and is widely recognized for its holistic approach in services delivery and support.
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$10,000 +
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50 - 249
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$25 - $49 / hr
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US, Pompano Beach
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One of the Leading Software Development Companies in Eastern Europe.
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$5,000 +
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10 - 49
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< $25 / hr
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UA, Lviv
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Starfish Enterprise, LLC is a woman-owned business with a pending HUB-Zone certification. The Starfish team is a diversely talented group. We are inventors, creators, and innovators. Our web designers, graphic designers, and software developers specialize in their own areas of interest, but collaborate to provide high-level work.
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Undisclosed
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2 - 9
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$50 - $99 / hr
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US, Wilmington
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StarterDev is an Alberta-based Software Development Startup. StarterDev prides itself on providing quality service that caters to the clients specific needs. StarterDev offers services such as web development, Logo Design, Mobile Dev and many more. StarterDev is all about turning your ideas into a reality.
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$5,000 +
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2 - 9
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$50 - $99 / hr
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CA, Calgary
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StartupCraft is a Blockchain, Web and Mobile app development company focused on building products and solutions for startups of any calibre and Enterprise companies. Learn about how we can help with your project. We enjoy working on unique and challenging tasks, not wasting our time on routine. It helps keep our brains always in shape and drive us to get up in every morning. It leads engineering mind to work with compassion and discover high-quality code formulae. Open Source only teases with a solution and in the end, it isn't ready for real production experience. By investing thousands of hours when developing our own reusable system we never reinvent the wheel. To craft a startup one has to balance between routine and innovation, so we prefer to bring a maximum of our time and intellectual resources to your unique business idea. We offer our smart economy product development process and welcome to join a startup craft journey. More info here: https://startupcraft.io
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$25,000 +
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50 - 249
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$50 - $99 / hr
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US, Miami
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