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

  • 181
    $10,000+
    50 - 249 Employees
    Wrocław Poland

    Clearcode is a software development company with an office in New York and offices in Wroclaw and Katowice, Poland. Founded in 2009, they design and build software for small to large-scale companies in advertising and marketing. Services include custom software development, UX and UI design, AdTech & MarTech development, and graphic design.

    Clients
    Klarna
    Kanary Nest
    AddShoppers
    Industries
    Notable Project

    Clearcode was involved from the start in the development of a SaaS platform for an information services company, including a web crawler. They connected it to Power BI and gave it capabilities for identifying tracking technologies. They produced a working product within four months, allowing the company to onboard about 500 clients and implement the software in over 1,000 websites.

    “We’re really pleased, both with the management team and developers. They’re really good at adjusting to different teams and situations and can be considered a trusted partner.” – CTO, Information Services Company

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  • 182
    $250,000+
    50 - 249 Employees
    Chicago IL

    Table XI is a mobile app and custom software developer based in Chicago, IL. Founded in 2002, they are a team of 50 curious minds that specialize in building websites, mobile applications and custom digital experiences for companies ranging from startups to well-known brands.

    Clients
    Dept. of Medicine
    Northwestern University
    Outcome Health
    Journal for the American Medical Association (JAMA)
    Industries
    Notable Project

    Table XI recreated the website of a global events company, building a video player and an iOS app to deliver content, all with no site downtime. After the migration, the app and site functioned seamlessly. The client recommended Table XI for their cost, clarity, and adherence to deadlines.

    “Table XI has been a key component in our growth, and without them, we couldn’t move forward.” – Founder and CEO, International Events App.

  • 183
    $25,000+
    250 - 999 Employees
    Atlanta GA

    delaPlex is an Atlanta-based software agency founded in 2008 with over 250 employees. They are experts in custom software development, mobile app development, and application testing for clients in the industries of advertising, financial services, and retail, among others.

    Clients
    GET Valet
    Catapult HQ, Inc
    MfG.com
    Industries
    Notable Project

    delaPlex developed software for a SaaS provider. delaPlex helped build many of the tools that the provider offers as their services. The provider is happy with the quality that delaPlex puts into the software that’s built.

    “I think what makes delaPlex so unique is that the team makes it their job to understand who we are, what we do, and what’s important to us.” - CEO, SaaS Provider

  • 184
    $10,000+
    50 - 249 Employees
    Chișinău Moldova

    EBS Integrator is a development agency in Chisinau, Moldova, and Chicago. Founded in 2010, they have about 50 employees that serve mostly small businesses in the business, e-commerce, and IT sectors. Services include mobile app, e-commerce, and web development.

    Clients
    Pets4Homes
    Parents
    Bredband.nu
    Yaytrade
    Industries
    Notable Project

    EBS Integrator developed a platform to help launch a startup’s MVP. The team provided front- and backend development and implemented design elements. The solution received positive feedback and was developed in a quick turnaround.

    “EBS Integrators has a great eye for detail. The team is also skilled enough to be able to come up with their own suggestions, rather than just following our directions without providing feedback.” – CEO, Marketplace Platform

  • 185
    $50,000+
    250 - 999 Employees
    Kyiv Ukraine

    Computools is a software solutions agency founded in 2013. With its headquarters in Kiev, Ukraine, they have a team of 120 employees. Their services include custom software development, blockchain development, and e-commerce development. They primarily serve small business and midmarket clients in the business services, financial services, and healthcare and medical industries. 

    Clients
    Visa
    Dior
    IBM
    Epson
    Industries
    Notable Project

    Computools built a web app that integrated thousands of applications for a software-as-a-service (SaaS) platform. They used Node.js to re-code the platform to make it easier to integrate new systems. Their work was successful, as the web app’s monthly users more than doubled. 

    “They are very accommodating. They have very talented people. I’ve worked with hundreds of overseas developers and it’s not normal to have such excellent overseas developers.” – CTO, SaaS Platform  

  • 186
    $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
    SOCAR Energy Ukraine
    Netpeak
    Dekra
    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

  • 187
    $5,000+
    1,000 - 9,999 Employees
    Gliwice Poland

    Euvic is an IT service provider specializes in custom software development, mobile app development, and web development. They were founded in 2004 in Gliwice, Poland, and have satellite offices in Warsaw, Leverkusen, Germany, Katowice, Poland, and Bielsko-Biala, Poland, and Mahwah, New Jersey.  They have a large team of around 350 employees who primarily service midmarket and small business clients. 

    Clients
    Arbor Seed Consulting
    Energa
    LexisNexis
    Geant
    Industries
    Notable Project

    Euvic developed a small-scale desktop application for commodity traders in the British market. Over time, their work expanded to provide additional features and functionalities for their development product. 

    "[Euvic] has proven easy to do business with which is a major benefit." – Owner, Commodity Trading Software Company 

  • 188
    $50,000+
    50 - 249 Employees
    Atlanta GA

    MaxMedia is an experience design company that was founded in 1996 and is located in Atlanta. They employ 68 staff experienced with delivering provocative content and interactive experiences to small, midmarket, and global companies, typically in media, retail, and telecommunications. Services include UI and UX design, 3D graphics, custom software development, and storytelling.

    Clients
    AT&T
    Aio/Cricket Wireless
    Andersen Windows & Doors
    Beats
    Industries
    Notable Project

    MaxMedia provided full-package e-commerce development, building a healthcare company's mobile-responsive website, mobile app, and kiosk software. This involved several rounds of research and user testing. Conversion rates for the client have risen significantly after implementing the digital platforms. 

    “We've drastically increased conversion rates for the digital platforms, reduced bounced rates and with an extensive suite of data acquisition tools deployed improved retention rate to lead the industry.” – CMO & Sales Officer, Healthcare Company

  • 189
    $50,000+
    50 - 249 Employees
    Sofia Bulgaria

    Melon is a software development agency that has offices in Sofia, Bulgaria and Skopje, Macedonia. Since 2003, the agency and its team of about 155 have specialized in web development and mobile app development, but also provide custom software development, app testing, and IT strategy consulting. Melon works primarily with midmarket businesses 

    Clients
    Coca-Cola Hellenic
    Royal Philips
    Accenture
    Skrill
    Notable Project

    Melon provided software development for a mobile gaming platform. The client was extremely pleased with Melon's communication and project management.

    "They [Melon] have developed a countless number of features on the platform, and I have been mostly satisfied with their work." - Founder, Mobile Gaming Platform

  • 190
    $25,000+
    250 - 999 Employees
    Warszawa Poland

    Custom software development company Elinext is a global company with offices around the world in New York, NY, Ireland, Germany, Belarus, and more. The team of nearly 200 has been around since 1997 and serve a range of clients from startups to Fortune 500 companies. They provide custom software, mobile app, web, and IoT development, as well as UI/UX design.

    Clients
    Broadcom
    Parrot
    Siemens
    Trumpf
    Industries
    Notable Project

    A technology startup that provides digital coaching and evaluation materials for K-12 teachers approached Elinext for help developing software for its coaching platform. Elinext took the lead on the frontend, backend, and database development for the web application.

    "Their professionalism, thoroughness, and serious attitude are impressive. Even at the stage of initial inquiry, they provided professional consulting, detailed estimates with project timelines, architecture of the application, and mock-ups." – Professor of Economics, Teacher Coaching Software Startup

  • 191
    $100,000+
    50 - 249 Employees
    Rotterdam Netherlands

    BrightMarbles is a software house from Novi Sad, Serbia. Founded in 2016, they have about 40 team members. They provide custom software, web, and mobile app development for businesses of all sizes.

    Clients
    LiteBit
    MediaMonks
    Gopuff
    Reichle & De-Massari
    Industries
    Notable Project

    BrightMarbles developed a multi-level app for a design bureau. The tech stack included React, NodeJS, and Google API, which enabled advanced filtering options. The project resulted in an easy-to-navigate we app. They were great collaborators and worked well with their partners.

    “Even though the company is still young, they showed impressive maturity when it comes to collaboration with us as their clients . . .” –Account Manager, Design Bureau

  • 192
    $50,000+
    50 - 249 Employees
    Lviv Ukraine

    Relevant Software is a software and technology services company based in Lviv, Ukraine, and founded in 2013. Their team of 39 employees specializes in IT staff augmentation, custom software development, and web development for primarily small business and midmarket clients in the financial services, IT, and media industries. 

    Industries
    Notable Project

    Relevant Software helped a company that manufactures IoT air quality devices launch a new web platform. They used JavaScript, React, and HTML to manage the frontend development for a site that would allow users to monitor their sensors remotely. The client said that the platform looked amazing and got positive reviews.

    “The platform looks amazing. We used it at the conference and got positive feedback both from our internal team and from our users.” – Head of Cloud & Web Software, Indoor Air Quality Device Producer
     

  • 193
    $25,000+
    250 - 999 Employees
    Palo Alto CA

    Cleverlance is an information services and technology firm that has offices in Redwood City, Calif., Prague, and Bratislava, Slovakia. Founded in 2000, Cleverlance's team of about 450 employees has nearly two decades of experience in web, software, and mobile app development. The firm primarily works with small business and mid-market clients – as well as a few larger enterprises – in the financial services industry, among others. 

    Clients
    T-Mobile
    Deutsche Telekom
    ooREDoo
    Intesa Sanpaolo
    Industries
    Notable Project

    Cleverlance partnered with a telecommunications firm in order to work on app development and enhancement. The team at Cleverlance took the client's outdated voicemail app and relaunched after making major technical additions. The firm made the app compatible with both iOS and Android devices, designed it, and conducted QA and product testing. The client was impressed with Cleverlance's flexibility and creativity. 

    "They’re interested in trying new things and finding unique ways to sell more products or make them better, which is an invaluable asset in a partner." —HR Digital & Innovation Telecommunications Firm 

  • 194
    $10,000+
    50 - 249 Employees
    Dover DE

    Visartech Inc. is a technology development services company founded in 2010 and located in Dover, Del. The 50-person team provides technology consulting, IT managed services, cloud computing, custom interactive applications, and software development startups. They serve startups, SMBs, and enterprises in the gaming, education, real estate, health care, and other sectors.

    Clients
    SportTrak
    ExplorR
    Faktor zwei GmbH
    Porpoise Studios
    Industries
    Notable Project

    Visartech Inc. helped polish and improve a golf simulation platform, integrated it with hardware, and continued upgrading the functionality within 6 years so far. The team used Unity3D to make the app available on PC, iOS, and Android. For 4 years in a row since 2017, the software got the "Best in Golf" Award.

    “Critical thinking and excellent communication make them stand out from other developers. ” – Executive, Sports Technology Solutions Company

  • 195
    $50,000+
    50 - 249 Employees
    Houston TX

    NTR Labs is a software agency based in Houston with more than 50 employees. Since their founding in 2000, they have provided custom software, web, and mobile app development solutions for small and mid-market firms alike in the fields of transportation and energy.

    Clients
    Intel
    GE Money Bank
    Skype
    McKinsey&Company
    Industries
    Notable Project

    NTR Labs upgraded a mobile app for a social app company. The app needed to be recreated with additional technologies such as neural networks and an A.I. NTR Labs helped improve the quality of the results that the app generated.

    “The project management was very impressive, especially when compared to other vendors.” - CEO, Social App Company

  • 196
    $5,000+
    50 - 249 Employees
    L'viv Ukraine

    ElifTech is a global technology service company based in Ukraine with an office in Wilmington, Del. The agency was established in 2015 and employs a team of nearly 40 development specialists. Their services include web, IoT, and custom software development for mainly small businesses in the manufacturing, transportation, and healthcare industries.

    Clients
    Class Wallet
    Skhole
    PriceSteer
    SenseQ
    Industries
    Notable Project

    ElifTech was called on by an online boutique web services agency to build a crowdsourcing MVP platform with an integrated payment gateway. The team provided both backend and frontend development to create a bug-free and accessible program.

    “They’re responsive and I never have issues to report back on. Everything moves along according to the schedule.” — Founder, Online Boutique Web Services Agency

  • 197
    $50,000+
    50 - 249 Employees
    Sutton United Kingdom

    Geeks is a software development company in London. Founded in 2007, Geeks' team of 85 specializes in custom software development, web development, and mobile app development, primarily for midmarket clients in media and govenment.

    Clients
    BBC
    EasyJet
    Euromoney
    Mitie
    Industries
    Notable Project

    An online history encyclopedia hired Geeks to build a web app for extracting content from other websites. The client's key challenge was ensuring that the web app could handle a high volume of data. Geeks developed custom software featuring a user-friendly frontend and a backend capable of extracting significant amounts of data. Finally, Geeks created a JavaScript library that the client can sell to other businesses. The client appreciated Geeks' creativity and innovation.

    "Our visualization engine can generally handle ten times more data and the average JavaScript library. We’ve had no problems with the stability of their code. The server has always been perfect." - Co-Founder, Online History Encyclopedia

  • 198
    $10,000+
    50 - 249 Employees
    Wrocław Poland

    RST Software Masters is a custom software development house founded in 1998. They have offices in Wroclaw and Swidnica, Poland, where they employ 144 staff specializing in digital solutions and consulting, UX and product design, e-commerce, and custom software creation. RST Software Masters works with international enterprises, as well as small and midmarket companies. 

    Clients
    Industries
    Notable Project

    RST Software Masters created a dashboard that displays measurements in real time for consumer goods company. RST Software Masters collaborated efficiently to produce deliverables on time. Their software development was integral to daily factory operations and enhanced the quality of internal stakeholders’ work.

    “Already in the first month after implementation we observed an improvement of the quality. Results are visible from the visual presentation of data and internal KPIs. The software contributed to the plans to introduce similar solutions in other departments.” – Specialist of Meteorology, Consumer Goods Company

  • 199
    $25,000+
    50 - 249 Employees
    Warszawa Poland

    Decerto is an IT company founded in 2006 and currently located in Warsaw, Poland. They employ 101 industry professionals who offer a variety of digital solutions, including web and mobile applications, outsourcing, software consulting, testing, data migration, and UX design. They work primarily for midmarket and large businesses in insurance, finance and telecommunications.

    Clients
    Warta
    Generali
    Allianz
    Industries
    Notable Project

    Decerto reviewed third-party API docs to custom build and test integration projects for a business services company. Using the client's flagship software, they implemented authentication mechanisms, timeout parameters and data validation. Decerto's templates have significantly reduced the time required for users to accomplish their use case, which has led to multiple customer deals.

    “The team demonstrated keen documentation skills, navigating new territory in a systematic way. The team provided daily updates and tracked their work carefully. The project manager regularly offered helpful advice on how to communicate more effectively using Jira, Slack, and other communication tools.” – Product Manager, Business Services Company

  • 200
    $5,000+
    250 - 999 Employees
    Belmont CA

    ERP consulting and SI company Folio3 is located in Belmont, California; Pleasanton, California; North Sydney, Australia and Dubai, United Arab Emirates. Established in 2005, the midsize team focuses on ERP consulting and SI, mobile app development, web development, custom software development, and more.

    Industries
    Notable Project

    Folio3 helped a kitchen and bath company rebuild the connectors between their website and their NetSuite environment. They have added a greater level of Shopify and Amazon-related functionality to the site.

    "Their experience with NetSuite, Shopify, and Amazon was exactly what we were looking for."

  • 201
    $1,000+
    10 - 49 Employees
    Kolkata India

    designs.codes is a software development company based in Kolkata, India. Founded in 2014, their fewer than 250 employees provide custom software development, mobile app development, and web development services.

    Clients
    Watford FC
    Al Mulla Industries
    Robinson Pelham
    Race Organisers Admin Group South Africa
    Industries
    Notable Project

    designs.codes developed a custom software that was designed to improve engagements with outside business partners for their tenancy services client. They built a platform to meet their exact needs, leading to multiple new engagements as a direct result of the software.

     I felt that my developer cared about my project and would always go the extra mile. -Project Manager, Tenancy Services Company

  • 202
    $25,000+
    10 - 49 Employees
    New York NY

    Coalesce is a New York City-based development shop with expertise in software, web, mobile app development, and UX/UI. Founded in 2006, Coalesce has a small team of about 10 employees, all of whom are committed to building exciting and engaging products for mostly mid-market companies. They also have a small business and enterprise presence.

    Clients
    Air Liquide
    Inman News
    Knopman Marks
    Rodale
    Industries
    Notable Project

    A B2B publishing company in the real estate industry approached Coalesce for guidance on creating a subscription model for its content and updating the overall online experience of its website. Coalesce got involved with user research, content strategy, wireframing, and frontend development, leading the project for the small publishing company.

    “They are incredibly thoughtful and detail oriented. They really put a lot of value and emphasis on process and not skipping steps, not rushing. They’re very methodical.” – VP of Marketing, B2B Publishing Company

  • 203
    $1,000+
    50 - 249 Employees
    Zagreb Croatia

    Serengeti is a custom development and testing firm based in Zagreb, Croatia. Founded in 2007, their team of 100 serves clients in the finance and healthcare sectors. Services include .NET, Java, and C# development.

    Clients
    KNAPP
    Fronius
    audifon
    Swissphone
    Industries
    Notable Project

    Serengeti provided development augmentation services for a digital service provider. They worked in Java, IBM WebSphere, Spring Boot, and Pivotal Cloud Foundry. The team showed excellent communication throughout the project.

    “Any time we had cuts or increases in support, they were very adaptable.” – IT Consultant, Digital Service Provider

  • 204
    $25,000+
    250 - 999 Employees
    Coventry United Kingdom

    Objectivity Ltd. is an IT company headquartered in Coventry, United Kingdom, that provides custom software and web development, as well as web design functions. Founded in 1991, the company has over 600 employees. The businesses they serve represent multiple industries including the business services, financial services, and real estate industries.
     

    Clients
    Edrington
    Suez UK
    ImmobilienScout24
    NHS
    Industries
    Notable Project

    Objectivity Ltd. provided staff augmentation services for a retail solutions company. The client needed Objectivity Ltd. to augment their development team. The team was working on headless commerce solutions, and the company provided teams to help the client with development, business analysis, and test functions. The company’s services have helped the client work more efficiently. 

    “We've seen a positive impact, and they increase our capabilities and capacity to deliver. They bring in a high level of technical expertise.” – Head of Software Development, Software Company 
     

  • 205
    $250,000+
    1,000 - 9,999 Employees
    New York NY

    Valtech is a development company that specializes in Sitecore and is headquartered London with 36 additional offices across 16 countries. Founded in 1993, they have over 2400 employees that mostly work with mid-market and enterprise businesses. Services include web design and development, software development, social media, digital strategy, and IT consulting.

    Clients
    L'Oréal
    Lufthansa
    Heineken
    Audi
    Industries
    Notable Project

    Valtech developed a web application for an auto manufacturer with the goal of creating a virtual car buying experience for people who do not visit car showrooms. The team delivered a sophisticated, user-friendly platform with straightforward features that made the car buying process easier in a digital setting.

     

  • 206
    $25,000+
    50 - 249 Employees
    Kharkiv Ukraine

    Founded in 2016, IdeaSoft.io is a software development firm that offers custom software development, blockchain, and web development services to their clients in the IT, business services, and education industries. Their 250 employees are based out of offices in New York, NY and Kharkov, Ukraine. .

    Clients
    Porsche
    Bittrex
    Securitize
    Neura
    Industries
    Notable Project

    IdeaSoft.io recently worked on web development for a broker company. They implemented a ranking system through a database they developed for that client.

    “The database is available to specific customers, and it’s going quite well.” — CEO, Broker Company

     

  • 207
    Undisclosed
    1,000 - 9,999 Employees
    Stockholm Sweden

    Cybercom Group is a software development firm based in Warsaw, Poland with other offices in Lodz and Bydgoszcz, Poland, Tampere and Helsinki, Finland, and Stockholm and Gothenburg, Sweden. Established in 1997, they have 1185 employees that provide web development, custom software, mobile development, internet of things, and more.

    Clients
    Ericsson
    Volvo
    Doro
    Vubiquity
    Notable Project

    Cybercom Group worked with a German mechanical engineering firm to help them expand into IoT-enabled products. They employed a large-scale team to work on several new devices, and integrate them into some of their existing equipment. The client was impressed with Cybercom's development speed, especially given the sophisticated nature of the task.

    "...we could see the experience that Cybercom had had on internet-of-things projects. It was money well-spent for us. Cybercom guided us through the process, so we didn't have to learn from our mistakes.." — Project Manager, Mechanical Engineering Firm

  • 208
    $10,000+
    50 - 249 Employees
    New York NY

    Founded in 2011, People10 Technologies Inc. is a product development company headquartered in New York, with an additional office in Bengaluru, India. With a team of about 150, the company specializes in custom software development, mobile app development, and web development.

    Clients
    Allegiant
    Fidelity
    Hewlett Packard
    PWC
    Notable Project

    People10 Technologies Inc. helped an airline with QA and development for a large maintenance rewrite. They helped with QA, development, and security and release automation. The client is satisfied with their deliverables, their communication, and how quickly they work.

    “They’re very prompt about addressing any concerns, whether those are related to a team member’s performance or a project detail being missed. In addition, they learn quickly on the job.”

    — VP of Technology, Airline
     

  • 209
    $5,000+
    50 - 249 Employees
    Osijek Croatia

    Gauss Development is a web solutions development company based out of Osijek, Croatia. Founded in 2009, their 50+ team provides custom software development, mobile app development, e-commerce development, and more mainly to small businesses in the e-commerce, consumer products, business services, and other industries.

    Clients
    Atos Convergence Creators
    Celero Cloud GmbH
    lliance Business Solutions LLC
    ApproLogic GmbH
    Industries
    Notable Project

    Gauss Development developed custom software for a reporting solutions company. They worked on the frontend, the e-commerce backend, API integrations, and more, delivering a reliable solution that serves a global, multicurrency user base. The client applauded their availability, communication, and diligent approach to their work.

    "Gauss Development will be our preferred development partner for the next generation of our Automated reporting platform." – CEO, Reporting Solutions Company

  • 210
    $50,000+
    1,000 - 9,999 Employees
    San Francisco CA

    Toptal is a private network of freelance technologists and designers. With more than 2000 freelance workers in its exclusive community, Toptal can be instrumental in finding the right freelance partner for development projects. The community includes developers for any platform, finance experts, and designers of both visual material and graphic interfaces. Because of its screening process, Toptal combines the reliability and expertise of an agency with the flexibility and affordability of freelance work.

    Clients
    Toptal clients include J.P. Morgan
    Zendesk
    Artsy
    IDEO
    Industries
    Notable Project

    One of Toptal's most impressive clients is a machine learning and artificial intelligence platform for marketing. The sophisticated nature of the project required expert developers familiar with cutting-edge technology and complicated programming principles, and Toptal's freelance screening service enabled the client to find freelancers with the right skills quickly. The varying needs of the project made Toptal the right choice because they could easily expand and shift the focus of their development team.

    "Toptal made it easy to work with the team. If there was ever anything wrong, it was fixed quickly." – Co-founder, Advertising Technology 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