Looking for a top custom software developer?

Software developers own the process of transforming data into an organized structure for a product such as a mobile app or website. As you tackle complex development projects to grow your business, you'll need the right partner for your needs.

That's why we've created this list of the best software development companies for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business. (And, if you want personalized recommendations, tell us about your project.)

List of the Best Custom Software Developers

  • 121
    $75,000+
    250 - 999 Employees
    Medellín Colombia

    Perficient Latin America (formerly PSL) is a software engineering company that was founded in 1986. With locations in New York; Medellín, Colombia; and Mexico City, Perficient Latin America has more than 650 employees. They specialize in custom software development, big data consulting, cloud consulting, system integration, and web development. Perficient Latin America supports mid-sized and enterprise clients across a range of industries.

    Clients
    Bridgestone
    Deloitte
    Brinks
    Arris
    Industries
    Notable Project

    Perficient Latin America built a marketing web application for a sales software firm. The client valued Perficient Latin America's ability to program flawless, bug-free code thanks to their high level of expertise in development. To support the client and maintain quality assurance, Perficient Latin America continues to provide ongoing maintenance and support.

    "The developers are very careful to deliver a quality product from the start. The QA engineers don’t let errors slip through. It’s been a good, high-quality experience so far." – Vice President of Development, Sales and Marketing Software Firm  

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  • 122
    $100,000+
    50 - 249 Employees
    New York NY

    Stride is a New York City-based software development company that embraces agile development practices. Founded in 2014, Stride has proven itself as product development experts, with experience with software, websites, e-commerce, mobile apps, and IoT.

    Clients
    Equinox
    The Daily Beast
    MLBAM
    Industries
    Notable Project

    Stride was hired by an e-learning platform to work on three areas of its online platform: teacher experience, user experience, and educational content. Stride identified members of its to team to work with the managers responsible for each area of the e-learning platform. The project required development and design work for both the platform and connected web application. Later, Stride helped the client integrate with a third-party payment processing system.

    “What really impresses me the most about them is their consultants’ ability to collaborate with the teams with which they’re working. We’ve had experiences with other consultancies in the past where their engineers were much more comfortable going off on their own.” – Head of Technology, E-Learning Platform

  • 123
    $100,000+
    50 - 249 Employees
    Cebu City Philippines

    Arcanys is a software outsourcing center of 156 employees, founded in 2010. They are headquartered in Cebu City, Philippines, with a second location in Makati City, Philippines. They specialize in custom software development, mobile app development, and AI. They primarily serve small and midmarket businesses in IT, business, healthcare, and consumer products industries.

    Clients
    Manta Ray Consulting
    Novartis
    Patienteer
    Spinetix
    Industries
    Notable Project

    An IT consultancy hired Arcanys as a partner during peaks in business. They mainly performed Java development, Angular, and NodeJS based on an Amazon Web Services platform. The client was pleased with their extensive knowledge base.

    “We wouldn’t be the company we are today without Arcanys. They’ve helped us achieve lots of success stories.” – Senior VP of Information Management, IT Consultancy
     

  • 124
    $75,000+
    10 - 49 Employees
    Denver CO

    Fusionbox is a software development company based in Denver founded in 2001. The company is run by a team of 13 experts who are experts in custom software development and UX/UI design. They are familiar with using frameworks such as Django and application platforms such as Linux servers.

    Clients
    Stanford University
    Colorado Lottery
    FirstBank
    Notable Project

    Fusionbox built a custom online platform for a strategic planner to host their work with clients. Fusionbox first held meetings with the planner to better understand the platform. Then, Fusionbox developed a prototype which then led to the final production and release. Customer response times with the new platform decreased dramatically, down from a month to around three days.

    "At every level, we’ve been really impressed with Fusionbox. They have the ability to intuit our needs before we see them. They understand not just our immediate problems, but our long-term problems too. So, they’ve been great at guiding us through the technical aspects of what we don’t fully understand. The team is great at bringing solutions instead of just pointing out problems." – VP of Operations, Strategic Planner

  • 125
    $10,000+
    50 - 249 Employees
    Helsinki Finland

    Headquartered in Poznań, Poland, Espeo Software is a development agency that focuses primarily on the business services, marketing, and education industries. Founded in 2008, the company has about 70 employees that work with small businesses, middle-market companies, and enterprise clients alike. Espeo Software specializes in web development, blockchain, mobile app development, and more. 

    Clients
    Egnyte
    Oracle
    Eximap
    MapVida
    Industries
    Notable Project

    Espeo Software created a sophisticated tool for a digital education company that evaluates and certifies digital and analog education resources. The company continues to improve the tool's functionality and is currently building a related catalog site. The tool Espeo Software delivered runs smoothly and has garnered positive feedback from internal users.

    "The service has been flexible, trouble-free, and efficient." –  Head of Operations, Digital Education Company 

  • 126
    $10,000+
    10 - 49 Employees
    East Grinstead United Kingdom

    Ballard Chalmers is a software development company based just south of London. Founded in 2005, their team provides custom software development, modernisation and integration, as well as support and IT Managed Services.

    Clients
    BBC
    RHS
    Virgin
    NHS
    Industries
    Notable Project

    Ballard Chalmers developed an online investor onboarding platform to help make key processes such as fund launches faster and more cost-effective. The Azure-hosted web application was built using ASP.NET MVC, C#, SQL Server, TSQL, AngularJS, Bootstrap and SSRS. In only the first year it reached 20,000 active profiles.

    "Our standard process is to use Ballard Chalmers as a sounding board for technical designs. Whether we’re asking them to do the work or not, they still come back and help us make sure we’re making the right technical choices." - Head of IT, Financial Services Company

  • 127
    Undisclosed
    10 - 49 Employees
    Austin TX

    Eureka is a custom software and technology engineering firm based in Austin, Texas. Founded in 1986, Eureka's has about 20 employees that primarily focus on midmarket businesses in the telecommunications sector. Services include custom software, mobile app development, and UX/UI design.

    Clients
    3M
    Siemens
    AT&T
    Reuters
    Industries
    Notable Project

    Eureka was hired by a computer software firm to supply database and backend development through Python, C++, and Lua, among other coding languages. The client received a large amount of positive feedback on the product's reliability, scalability, and ability to handle heavy load volumes.

    "They have some very talented developers on their staff."  –  Software Department Manager, Computer Software Firm

  • 128
    $10,000+
    250 - 999 Employees
    Nashua NH

    A tech frontrunner since 1989, Zco is a full-stack app development firm offering web, mobile, and animation services. Headquartered in Nashua, New Hampshire with a Boston office, the 200+ specialists comprise a powerhouse team with outstanding and varied proficiencies.

    Clients
    BBC America
    Liberty Mutual
    Microsoft
    Samsung
    Industries
    Notable Project

    Zco developed an app for both iOS and Android to showcase the products of a large electrical parts manufacturer. Their prompt turnaround and response time, competitive pricing, and immaculate deliverables resulted in an experience that was “overwhelmingly positive.”

    "Their technical expertise is spot-on and they're highly responsive, even post-launch." – Senior Product Manager, Manufacturing Company

  • 129
    $25,000+
    1,000 - 9,999 Employees
    Reston VA

    Kellton Tech Solutions is a global IT outsourcing firm headquartered in New Brunswick, New Jersey, and has development and technical centers in McLean, Va. Gurgaon, India, and Hyderabad, India. Founded in 1993, they have over 850 employees. Their specialties include, custom software development, ERP, IT strategy, and IT managed services.

    Clients
    KFC
    DuPont Chemical
    College Board
    Penton
    Industries
    Notable Project

    Kellton Tech Solutions rebuilt a web and mobile application for a courier management software firm. They delivered native mobile apps and a web-based host platform. The ratings of the new apps have improved considerably, and there have been far fewer performance issues since bringing them on.

    "They’ve done very well. There have been moments of high-stress emergency but that’s not attributed to them. They were handed a project written with old code and many issues." – Project Manager, Delivery Software Firm

  • 130
    $25,000+
    10 - 49 Employees
    Lisboa Portugal

    Altar.io is a product and software development company based in Lisbon, London, and Milan. Founded in 2015, the team of 20 provides end-to-end IT services in web, mobile, and cloud. They also provide UX/UI design, development, and software deployment. They are cross-industry, with a specialty in fintech and work with companies of all sizes.

     

    Clients
    Apiax
    AlixPartners
    QuartalFS
    Audio Test Kitchen
    Industries
    Notable Project

    Using AngularJS and IBM LoopBack, Altar.io worked on an MVP for a fintech company. They developed the frontend of a working application to integrate with an existing backend. They created the UX and frontend design.

    “They deliver on their promises and to start projects exceptionally quickly. They put together a delivery team in no time." – CEO, Fintech Company

  • 131
    $10,000+
    10 - 49 Employees
    Cockeysville MD

    Founded in 2011, Bytelion is a software firm located in Hunt Valley, Md. Their team of 24 provide mobile app development, custom software development, web development and design. 

    Clients
    Stanley Black & Decker
    Snag-A-Slip
    ETC Baltimore
    Industries
    Notable Project

    Bytelion developed a mobile application and website for a boat slip company that wanted to expand the different means their customers could interact with their company. They provided design, development, and QA testing for the client; the collaboration allowed the business to grow significantly. 

    “I have found that Bytelion manages to hire extraordinary designers, developers, QA analysts, and project managers. Each employee I meet from Bytelion is talented, professional, and receptive to client ideas.” –– Product & Technology, Boat Slip Company

  • 132
    $10,000+
    50 - 249 Employees
    Lviv Ukraine

    Sombra is a web and mobile development company based in Lviv, Ukraine, that was established in 2013. Their team of 88 employees provides custom software, web, and mobile app development.  

    Clients
    CXM
    OnCFO
    ZappySales
    CLIQUED
    Industries
    Notable Project

    Sombra revamped a video streaming platform for a media company. Their team added new features, including a broadcast scheduler and cross-platform streaming. Their work eliminated errors and boosted traffic.

    "Within the last year, our users haven’t had any crashes, even when there were high traffic loads."– Director, Streaming Service 

  • 133
    Undisclosed
    250 - 999 Employees
    Princeton NJ

    Artezio is a software development company headquartered in Princeton, N.J. with 3 offices in Belarus: Minsk, Vitebsk, & Mogilev, 3 offices in Russia: Moscow, Nizhny Novgorod, & Saratov, and 1 in Rosenheim, Germany. The agency's team of 311 offers a wide range of services like custom software development, web development, mobile app development, application testing, and more for clients of various sizes.

    Clients
    Propel Health Innovations
    dbMotion
    Microsoft
    Samsung
    Industries
    Notable Project

    Artezio was hired by a healthcare company to develop an Android app and upgrade an existing iOS app. 

    "We've done multiple projects with them because we've been so impressed with everything they've produced for us." – CEO, Healthcare Company

  • 134
    $10,000+
    50 - 249 Employees
    San Francisco CA

    AirDev is a San Francisco based software development company. They were founded in 2015 and have a team of 11 employees who specialize in the custom software, web, mobile app development. 

    Clients
    Y-Combinator
    Bridgespan Group
    Teach for America
    Notable Project

    AirDev worked on web development for a travel platform. They guided the client through a planning phase for the site, then used those designs and decisions to develop the site fully. The client was impressed with the finished site.

    “AirDev put our prototype in front of users quickly, which exceeded my expectations. They delivered a quality product at a reasonable price.” – CEO, Travel Platform
     

  • 135
    $10,000+
    10 - 49 Employees
    Toronto Canada

    RootQuotient is a technology and development partner based in Montreal. The team of 12 also has an office in Chennai, India and offers cross-platform app and software development services to its midmarket and small business clients. 

    Clients
    Siemens Gamesa
    Verizon
    Nokia
    L&T
    Industries
    Notable Project

    An education communication platform hired RootQuotient to develop a mobile and web app to promote better communication between schools and parents. They used a cross-platform tool to develop the app and created automated functionalities including attendance tracking and student feedback. The product helped the client convert users. 

    "They’ve been really helpful right from the ideation stage. They clearly explained the process of the collaboration upfront." – Co-Founder, Education Platform 

  • 136
    $25,000+
    50 - 249 Employees
    L'viv Ukraine

    DevCom is a web development company that was founded in 2000. The company is headquartered in Lviv, Ukraine, has a second office in Port Orange, Fla., and consists of 105 employees. They specialize in web, custom software, and mobile app development. 
     

    Clients
    TradeWeb
    2Solar.nl
    Sharable
    EMS Solutions
    Industries
    Notable Project

    DevCom helped a tech firm design and implement software. They collaborated together on multiple projects over several years, which included work in SQL, HTML, and cloud-based services. The client was pleased with their sophisticated and cost-effective solutions. 

    “They have a good understanding of development and design and they create useful programs for our users.”  CEO, Tech Firm
     

  • 137
    $10,000+
    250 - 999 Employees
    Katowice Poland

    JCommerce is a software company based in Katowice, Poland, with offices in six other cities in Poland. Founded in 2005, the team of 318 specializes in custom software development, IT staff augmentation, and BI and big data consulting and SI. They work primarily with midmarket, focusing on information technology, manufacturing, and financial services.

    Clients
    Bystronic
    DSI Underground
    Phoenix Contact
    DEKRA
    Industries
    Notable Project

    JCommerce worked on insurance platform development for an IT transformation company. They provided long-term web and mobile platform development services. They also built a new platform using Java architecture on the backend and JavaScript on the frontend. The client was impressed with the results of the project.

    “We went live with the system and it’s now used by the end customer of leading insurance companies, which is significant a factor of success.” – Engineering Project Lead, IT Transformation Company

  • 138
    $10,000+
    50 - 249 Employees
    Irvine CA

    Based in Irvine, Calif., Ardas, a software development company founded in 2005, works primarily within the financial services industry for enterprise and midmarket clients. With a team of around 250 in the UK, Israel, Ukraine, and Paris, Ardas utilizes .NET, ASP.NET, and Java to meet client project objectives.

    Clients
    Courier Exchange
    Networks Presence
    Apprise Projects
    Infinox Trading Power
    Industries
    Notable Project

    Ardas began a partnership with an online trading platform to develop software for a lucrative financial control system. They bridged the gap between an online trading database and multi-level marketing to grow the traffic of the client’s site.

    “They’re a leading-edge company in their field. I wouldn’t raise them to the clouds, but I also wouldn’t raise anyone above them. They’re one of the best companies you can work with.” – Chief Product Officer, Online Trading Platform

  • 139
    $50,000+
    1,000 - 9,999 Employees
    Leeds United Kingdom

    Headquartered in Leeds, United Kingdom, BJSS is an IT consultancy with offices in London, New York, and Bristol and Manchester, U.K. Since 1993, their team of 750+ has specialized in custom software development, application testing, IT strategy consulting, and more for enterprise-level and midmarket clients. 

    Clients
    Euroclear
    Barclays
    Xerox
    BBC
    Industries
    Notable Project

    After BJSS worked on automating a grocery store's software system, they later redesigned their e-commerce platform and built product scan tools. The agency delivered everything on time. The client prides BJSS on tackling such a hard project with intense passion.

    "They're very straightforward, and they're very matter of fact. They tell you as it is, without dressing it up and without making drama of it." – Head of IT Delivery, Retail Grocer

  • 140
    $25,000+
    50 - 249 Employees
    New York City NY

    Infinum is a software development company in San Francisco, CA. The 50+ team has equal experience in mobile and web development. They work with clients from a variety of industries, including business and financial services and automotive.

    Clients
    Bayer
    Samsung
    Universal Music Group
    T-Mobile
    Industries
    Notable Project

    Infinum rebuilt a flight booking app for a startup. The original app was extremely buggy and the company needed further support. One feature Infinum developed allowed customers to sync their calendars to find flights that work around their schedule.

    “While many agencies limit your choices, it was quite different with Infinum. They were clear and upfront about what resources we were getting and why and offered us options, which was really nice.” – Senior Project Manager, App Startup

  • 141
    $50,000+
    250 - 999 Employees
    New York NY

    Oxagile is a New York-based software engineering firm that provides full-fledged development and testing services across industries and domains. The company’s quality assurance offering includes managed testing services, dedicated QA, and QA consulting. Underpinned by cross-domain knowledge, the firm demonstrates its excellence in testing complex high-load solutions. Oxagile’s in-house automated testing tool ensures lower testing costs, faster time to market, and enhanced software quality.

    Clients
    Google
    Telecom Argentina
    Disney
    Thomson Reuters
    Industries
    Notable Project

    Oxagile developed a cloud-based financial management platform, helping their client boost online presence and enhance customer acquisition. Their team leveraged cross-domain knowledge to deliver value throughout the project — from design and prototype development to full-fledged solution deployment and testing.

    “Oxagile has a real understanding of our business challenges and industry.” - CTO, Financial Company

  • 142
    $10,000+
    50 - 249 Employees
    Hudson OH

    Taazaa Inc. is a Cleveland-based software agency founded in 2007 with over 50 experts. They offer custom software, web, and mobile app development solutions for clients ranging from small businesses to large firms in the fields of health care, education, and real estate.

    Clients
    PulseBox
    Caring24
    Malley’s Chocolates
    Industries
    Notable Project

    Taazaa Inc. developed a custom software solution for a building and restoration services firm. The solution was a full CRM system that coordinated scheduling, managed photos, and more. Taazaa Inc. provided the solutions that the firm was looking for.

    “They’ve created something that’s intuitive and easy to work with.” - Executive, Building and Restoration Services Firm

  • 143
    $50,000+
    10 - 49 Employees
    East Sussex United Kingdom

    Bright Interactive is a software development company Based in East Sussex, United Kingdom, that was founded in 1999. Their team of 32 provides custom software development, web development, UX/UI design. 

    Clients
    Panasonic
    Coca-Cola
    GKN
    Deloitte
    Industries
    Notable Project

    Bright Interactive provided development services for a digital asset management firm. Their team at Bright Interactive customized interfaces and helped deploy backup servers. Their work received significant positive feedback from executives.

    "Everything has been highly successful. Our main performance metric is whether or not our end clients have been happy with their solutions. They have been in every single instance."–Founder & CEO, Digital Asset Management Firm

  • 144
    $1,000+
    250 - 999 Employees
    Lumberton NJ

    Miles Technologies is an IT and software firm founded in 1997 and headquartered in Moorestown, N.J. With an additional office in Philadelphia, they operate with a team of over 300 employees to provide various services, including custom software development, mobile app development, and cloud consulting and SI. Their clientele consists of small, midmarket, and enterprise companies within the business, financial, or health care industries. 
     

    Clients
    Kramer Beverage
    Gauze
    US Sedan
    Industries
    Notable Project

    Miles Technology built a website for a private career school. They created and implemented a functional website from scratch, and then proceeded to provide SEO, Google Ads, and Facebook management for the client. This raised awareness for the career school and boosted traffic on their website.

    “Results started to build over a six-month period, and we met our end-of-year goals. In the second year, we started to exceed our first year goals and pinpoint our target market.” – CEO, Private Career School
     

  • 145
    $10,000+
    250 - 999 Employees
    Kista Sweden

    Reksoft is a Moscow-based software development house founded in 1991. Their team of roughly 200 employees is housed in an additional office in Kista, Sweden. They offer custom software, web and mobile development, and blockchain consulting. They're proficient in Javascript, C#, Python, and SQL, among others.

    Clients
    O'KEY
    Agora Freight
    Safe City
    Industries
    Notable Project

    Reksoft developed a logistics platform for a freight company. They executed a solution that consolidates data about tariffs and geographical restrictions. Their successful delivery of a reliable solution increased logistical efficiency.

    "The project allowed us to solve complex calculations and optimization issues." — Founder, Freight Company

  • 146
    $25,000+
    50 - 249 Employees
    London United Kingdom

    JustCoded is a web development company based in London with a satellite office in Kharkiv, Ukraine. Founded in 2007, it employs around 60 professionals who specialize in web development, e-commerce development, and mobile app development services to clients in primarily in the financial services industry.

    Clients
    Expedia
    FxPro
    ADS Securities
    Robb Report
    Industries
    Notable Project

    JustCoded worked with a community of creative agencies to provide tech and development services including custom-built projects, loan application processes, and API integrations. The main project JustCoded worked on was developing a community platform for a company using WordPress. This project included designing filters for over 1,000 pages of content and developing a strong search functionality for the site. The initiative ended up drawing over 1,000 customers within 6 months, well past the original goal of 100 clients in in 3 months.

    "When I started working with them, everything began running smoothly. We did a little test project, and I thought it was brilliant. The cost-to-value ratio was great as well. I can think of 25 companies I’ve worked with in different countries, but none delivered like JustCoded did. I’m still getting the same feedback from people I’ve introduced them to, which is great." – Managing Director, Community of Creative Agencies

  • 147
    $5,000+
    50 - 249 Employees
    Ivano-Frankivs'k Ukraine

    bvblogic is a full-stack web and mobile development company headquartered in Ivano-Frankivsk, Ukraine, with additional offices in Warsaw, Poland; Kiev, Ukraine; and Toronto, Ontario. Founded in 2008, bvblogic's team of around 75 employees specializes in web development, mobile app development, and custom software development. bvblogic primarily works with midmarket and enterprise clients in the business services, consumer products, and advertising industries. 

    Clients
    Netpeak
    Dekra
    MOYO
    Libresse
    Industries
    Notable Project

    A financial startup hired bvblogic to build the core API for its app. The client's goal was to build an app where users could quickly and securely exchange money online. bvblogic used an agile approach and advised the financial startup on the information architecture and systems design. The client appreciated that bvblogic worked similar hours to their team, including some nights and weekends.

    "I have received interesting funding offers from venture capital firms and angel investors. I definitely consider the platform a success." - CEO, Financial Startup

  • 148
    $25,000+
    10 - 49 Employees
    Cincinnati OH
    Gaslight is a small software development firm. They focus on custom software development, ux/ui design, and product design and were launched in 2009.
    Industries
    Notable Project

    Gaslight provides development services for an edtech startup. The team has completed designing a clickable prototype using Adobe, and they’ll be working further to develop the actual software. 

    “The team exceeded expectations and received nothing but good feedback.”

  • 149
    $25,000+
    50 - 249 Employees
    Miami FL

    Foonkie Monkey is a software development agency based in Bogotá, Colombia. Founded in 2010, the company has developed applications for several leading brands in sectors including financial technology and healthcare. Their team of about 15 employees provides mobile development for Android and iOS, web application development, and UI/UX design services.

    Clients
    Pfizer
    Novartis
    Banco San Juan Internacional de Puerto Rico
    Bancolombia
    Industries
    Notable Project

    Foonkie Monkey developed a mobile app for a startup based in Colombia. The platform connects users who need temporary storage space with those who can provide it to avoid expensive storage facilities. The Foonkie Monkey team built out the app with extensive functionality, including integrated payment and shipping solutions. The project has exceeded the client's expectations.

    "Without them, we wouldn’t even have a project. Their development work has been essential for us to get to this point." — CEO, Storage Startup

  • 150
    $100,000+
    50 - 249 Employees
    Zagreb Croatia

    We are an award-winning, full-service software delivery agency. As one of Central Europe’s fastest-growing companies, our work spans many industries.

    Agency04 is a 100+ strong team that builds Mobile apps, Web apps & Enterprise backends. You can level-up your productivity with our Test automation, BPM systems & Agile coaching.

    Clients
    Kapsch Carrier
    Iskon Internet
    Siemens
    University of Minnesota
    Industries
    Notable Project

    AG04 provided resources to a continuous delivery software firm to help develop software products, including a software deployment tool. With their expertise in Java, Scala, React, and Angular, they quickly became integral contributors in multiple product lines.

    "They have a lot of domain knowledge and can solve really difficult customer issues." — VP of Product Development, Continuous Delivery Software Firm

Tell us about your project
NEED HELP SELECTING A COMPANY?

Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.

TELL US ABOUT YOUR PROJECT