Top 100 Startup Software Development Companies
The Best of December 2025Looking for a top Startups 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.
Check out our directory of Startup software development companies. Browse reviews and ratings and scan by industry or specialty to find the company that's the best fit for you.
List of the Best Startup Custom Software Developers
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$25,000+10 - 49 employeesMedina, WAFlower Press Interactive is a small user experience agency launched in 2001. Their team offers UX/UI Design, Mobile App Development, Custom Software Development, Web Development, and more. The company is located in Medina, Washington.Read More
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$10,000+10 - 49 employeesJohannesburg, South AfricaRead More
Mobile application development firm CubeZoo was established in 2011. In Johannesburg, South Africa and London, England, their small team specializes in Mobile App Development, Web Development, Artificial Intelligence, UX/UI Design, and more.
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1$10,000+250 - 999 employeesNew York, NYSoftware development firm Cleveroad is located in New York, New York; Los Angeles, California; Kharkiv, Ukraine and Manchester, England. The midsize company was launched in 2011. Their team specializes in Custom Software Development, Web Development, IT staff augmentation, Mobile App Development, and more.Read More
Clients
DPD Mangopay PENNEO A/S LEGOIndustries
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2$50,000+50 - 249 employeesWarszawa, PolandRead More
Geniusee, a custom software development firm, is located in Middletown, Delaware; Warszawa, Poland; Kyiv, Ukraine and L'viv, Ukraine. The company focuses on Custom Software Development, Web Development, cloud consulting & SI, and Artificial Intelligence and has a midsize team.The company was established in 2017.
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Scout and Drum Technologies Inc. (startups from founders of the FinTech unicorn Kabbage acquired by Amex)Industries
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3$25,000+50 - 249 employeesLimassol, CyprusApp development company You are launched is located in Limassol, Cyprus; Columbia, South Carolina; Dnipro, Ukraine and Kraków, Poland. Launched in 2016, the midsize team offers Mobile App Development, Custom Software Development, and UX/UI Design.Read More
Clients
"You are launched is the perfect partner for a startup seeking a reliable development partner. Additionally, they have the ability to provide long-term support with dedicated and well-organized teams" - Giacomo Vose.Industries
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4$25,000+250 - 999 employeesWhite Plains, NYFingent is a software development firm. Founded in 2003, the midsize agency is based in White Plains, New York; Dubai, United Arab Emirates; Kochi, India and Melbourne, Australia. Their team offers Custom Software Development, Artificial Intelligence, Web Development, and Mobile App Development.Read More
Clients
Sony Mastercard AGP CBNIndustries
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5$25,000+1,000 - 9,999 employeesNew York, NYSoftware development company Vention is headquartered in New York, New York; Marietta, Georgia; Woodbridge Township, New Jersey and London, England. The large team provides Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more. The firm was established in 2002.Read More
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IBM PayPal pwc IC MarketsIndustries
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6$50,000+50 - 249 employeesSan Francisco, CAApp development company Cheesecake Labs is located in San Francisco, California and Florianopolis, Brazil. Established in 2013, the midsize team focuses on Mobile App Development, Custom Software Development, and Blockchain.Read More
Clients
MoneyGram International Stellar Development Foundation AB Inbev Mutual of OmahaIndustries
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7$75,000+250 - 999 employeesCharlotte, NCRead More
Custom software development firm Dualboot Partners is located in Charlotte, North Carolina; Raleigh, North Carolina and Montevideo, Uruguay. The midsize team specializes in Custom Software Development, Web Development, UX/UI Design, cloud consulting & SI, and more and was established in 2018.
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DebtBookIndustries
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8$25,000+50 - 249 employeesWarszawa, PolandRead More
Founded in 2009, 10Clouds is a software development company. Their midsize team is headquartered in Warszawa, Poland; Poznań, Poland; Wrocław, Poland and Novi, Michigan. Their team focuses on Custom Software Development, Mobile App Development, Artificial Intelligence, Generative AI, and more.
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Emergent TechnologyIndustries
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9$50,000+1,000 - 9,999 employeesNew York, NYAppinventiv is a mobile application development firm. Their large team is headquartered in New York, New York; Noida, India; Dubai, United Arab Emirates and London , England. The firm provides Mobile App Development, Artificial Intelligence, and Custom Software Development. The firm was established in 2014.Read More
Clients
Asian Bank KFC ADIDAS IKEAIndustries
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10$25,000+50 - 249 employeesPrague, Czech RepublicRead More
OAKS LAB is a midsize software development firm. Founded in 2016, the agency is based in Prague, Czech Republic. Their team provides Custom Software Development, Web Development, Artificial Intelligence, IT staff augmentation, and more.
Clients
Blue Owl Productboard Nasdaq Private Market Blackpoint CyberIndustries
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11$25,000+50 - 249 employeesLondon, EnglandMidsize software development firm GoodCore Software, is headquartered in London, England; Karachi, Pakistan and Cyberjaya, Malaysia. Founded in 2005, the team specializes in Custom Software Development, Artificial Intelligence, Web Development, IT strategy consulting, and more.Read More
Clients
PMLL GCBF Hirevine London Women's ClinicIndustries
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12$25,000+50 - 249 employeesMiami, FLWeSoftYou is a midsize custom software development company. Established in 2018, the company is based in Miami, Florida and Kyiv, Ukraine. Their services include Custom Software Development, Web Development, and AI Consulting.Read More
Clients
AudiIndustries
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13$10,000+50 - 249 employeesWarszawa, PolandRead More
Fulcrum, a software development firm, was founded in 2018. They are based in Warszawa, Poland; Sheridan, Wyoming and Kyiv, Ukraine and have a midsize team. Their services include Custom Software Development, Artificial Intelligence, Web Development, Mobile App Development, and more.
Clients
Mercedes website (Mercedes Car Dealership in Ukraine)Industries
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14$50,000+50 - 249 employeesTallinn, EstoniaRead More
Riseapps is a midsize software development company. Founded in 2016, the company is located in Tallinn, Estonia; Lake Mary, Florida; Warszawa, Poland and Gdańsk, Poland. Their services include Custom Software Development, Artificial Intelligence, Mobile App Development, and Generative AI.
Industries
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15$25,000+250 - 999 employeesPune, IndiaSoftware development firm Talentica Software was launched in 2003. The company provides Custom Software Development, Artificial Intelligence, Generative AI, Low/No Code Development, and more and has a midsize team.Read More
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Mist Systems (Juniper Company) Amplify Rupeek TalentpoolIndustries
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16$25,000+250 - 999 employeesMiami, FLRead More
Custom software development firm Emerline was founded in 2011. They are in Miami, Florida; Wrocław, Poland; Vilnius, Lithuania and Heidelberg, Germany and have a midsize team. Emerline provides Custom Software Development, Artificial Intelligence, Mobile App Development, cloud consulting & SI, and more.
Industries
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17$10,000+10 - 49 employeesHalifax, CanadaMindSea is a small software development firm. The Halifax, Canada-based firm was established in 2007. Their services include Custom Software Development, Mobile App Development, UX/UI Design, and IoT development.Read More
Clients
Constant HealthIndustries
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18$25,000+250 - 999 employeesPleasanton, CAAltoros is a midsize Blockchain company. Founded in 2001, the firm is based in Pleasanton, California; Buenos Aires, Argentina; Oslo, Norway and Helsinki, Finland. Their team offers Blockchain, Custom Software Development, Web Development, Enterprise App Modernization, and more.Read More
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AllstateIndustries
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19$25,000+50 - 249 employeesL'viv, UkraineBinary Studio, a custom software development firm, was established in 2005. In Wimborne, England and L'viv, Ukraine, their midsize team specializes in Custom Software Development, Web Development, Mobile App Development, and IT staff augmentation.Read More
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SnapNurseIndustries
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20$50,000+50 - 249 employeesMontevideo, UruguayRead More
Loop Studio is a software development services provider located in Montevideo, Uruguay. It was founded in 2014 and now has a team of more than 24 employees. Loop Studio specializes in web development and also provides custom software development, mobile app development, application management. support and more to primarily small businesses.
Clients
Looking Glass Cyber mParticle Kalibri Labs Stacker GroupIndustries
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21$10,000+10 - 49 employeesLondon, EnglandBased in London, England; Plymouth, England; Edinburgh, Scotland and Manchester, England, Coreblue is a custom software development firm. The small team offers Custom Software Development, Mobile App Development, IT strategy consulting, Low/No Code Development, and more. The agency was established in 2015.Read More
Clients
Bank of Kigali Executive Nexus ProConveyIndustries
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22$25,000+50 - 249 employeesLos Angeles, CASoftermii, a custom software development company, was established in 2014. They are headquartered in Los Angeles, California; L'viv, Ukraine; München, Germany and Stockholm, Sweden and have a midsize team. Their services include Custom Software Development, AI Consulting, Artificial Intelligence, and IT staff augmentation.Read More
Clients
Events10xIndustries
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23$25,000+50 - 249 employeesLondon, EnglandRead More
Located in London, England; Sydney, Australia and Sunny Isles Beach, Florida, Magora is a software development company. The midsize team specializes in Custom Software Development, Mobile App Development, Web Development, Artificial Intelligence, and more. The agency was launched in 2010.
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DanoneIndustries
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24$25,000+1,000 - 9,999 employeesOrlando, FLSimform is a cloud consulting & SI company. They are headquartered in Orlando, Florida; Los Angeles, California; Chicago, Illinois and San Francisco, California and have a large team that specializes in cloud consulting & SI, Custom Software Development, Mobile App Development, Artificial Intelligence, and more. The agency was established in 2010.Read More
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RedbullIndustries
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25$25,000+10 - 49 employeesLisboa, PortugalCustom software development firm Altar.io was established in 2015. They are in Lisboa, Portugal and London, England and have a small team. Altar.io offers Custom Software Development, Artificial Intelligence, Mobile App Development, Product Design, and more.Read More
Industries
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26$10,000+250 - 999 employeesKharkiv, UkraineEstablished in 2000, Zfort Group is a midsize software development company. Their services include Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more. The agency is based in Kharkiv, Ukraine and New York, New York.Read More
Clients
Online.ioIndustries
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27$10,000+50 - 249 employeesSan Francisco, CAAzumo, an artificial intelligence company, was established in 2016. Their midsize team is headquartered in San Francisco, California and Rosario, Argentina. The firm provides Artificial Intelligence, Custom Software Development, Mobile App Development, and BI & big data consulting & SI.Read More
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Twitter Facebook Omnicom Discovery ChannelIndustries
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28$25,000+50 - 249 employeesVilnius, LithuaniaRead More
Corner Case Technologies is a digital product development company based in Vilnius, Lithuania, with an office in London, UK. The company, founded in 2016, has a team of around 30 IT professionals who provide custom software, web, and mobile app development services to various businesses and institutions.
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Sejico MindTales Kiosk SEIFAIndustries
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29$50,000+250 - 999 employeesNaples, FLIntetics Inc. Is an IT managed services company founded in 1995. The firm focuses on IT managed services, IT staff augmentation, Custom Software Development, Web Development, and more and has a midsize team. The firm is headquartered in Naples, Florida; Düsseldorf, Germany; Kraków, Poland and Kyiv, Ukraine.Read More
Clients
Encyclopaedia BritannicaIndustries
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30$5,000+50 - 249 employeesKyiv, UkraineRead More
ROCKETECH is a software development firm based in Kyiv, Ukraine; Singapore; London, England and San Francisco, California. The midsize team focuses on Custom Software Development, Mobile App Development, UX/UI Design, IT staff augmentation, and more and was founded in 2015.
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GalamartIndustries
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