Top 30 Custom Software Development Companies
The Best of April 2026
Software development is essential in the modern world and continues to expand. All companies require an online presence, and establishing an engaging online space is the primary step for competitiveness. A partner ensuring seamless operation of background systems, contributing effectively to a brand's success, is vital. Strong development opens doors to more opportunities and increased success potential.
The only problem modern companies face is finding such a partner. One with technical expertise and a deep understanding and insight into the company’s industry. This is why The Manifest created and curated a list of the top performers in the software development industry. Make sure to go through each option and read the user-contributed reviews about them. Choose the agency that best suits your company’s needs and requirements.
Jump to Most Reviewed Companies
List of the Best Software Development Firms
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$10,000+10 - 49 employeesMedina, WAFlower Press Interactive is an artificial intelligence firm founded in 2001. Their small team is in Medina, Washington and offers Artificial Intelligence, UX/UI Design, AI Consulting, Custom Software Development, and more.Read More
Industries
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34261Undisclosed50 - 249 employeesGlasgow , ScotlandIntegrated Environmental Solutions (IES) is a software development company. They are in Glasgow , Scotland and have midsize team. They specialize in Custom Software Development.Read More
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34262Undisclosed2 - 9 employeesGlasgow, ScotlandKingfisher Systems (Scotland) Ltd is a custom software development firm. Based in Glasgow, Scotland, their team provides Custom Software Development and Web Design.Read More
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34263Undisclosed10,000+ employeesGlasgow , ScotlandTentacle Solutions Limited is a software development firm. They are in Glasgow , Scotland and have large team. Their team focuses on Custom Software Development.Read More
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34264Undisclosed10 - 49 employeesGlasgow , ScotlandCustom software development company CPL Software was launched in 2009. Located in Glasgow , Scotland, the team focuses on Custom Software Development.Read More
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34265Undisclosed10 - 49 employeesGlasgow , ScotlandEstablished in 2010, Firefish Software is a software development company. The company focuses on Custom Software Development.Read More
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34266$5,000+250 - 999 employeesGuangzhou Shi, ChinaZWSOFT, a software development firm, is headquartered in Guangzhou Shi, China. Established in 1998, the team provides Custom Software Development and Application Management & Support.Read More
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34267Undisclosed2 - 9 employeesGlasgow , ScotlandGlenAllan Limited is a small Glasgow , Scotland-based custom software development firm. Their services include Custom Software Development.Read More
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34268Undisclosed10 - 49 employeesGlasgow , ScotlandInisoft Ltd., a custom software development firm and AI company, is headquartered in Glasgow , Scotland. Founded in 1990, the team focuses on Custom Software Development and Artificial Intelligence.Read More
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34269Undisclosed50 - 249 employeesGlasgow, ScotlandCeridian Europe Ltd is a custom software development firm. Launched in 2016, the agency is located in Glasgow, Scotland. Their team specializes in Custom Software Development.Read More
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34270Undisclosed50 - 249 employeesGlasgow , ScotlandSoftware development company and AI firm encompass is in Glasgow , Scotland. They focus on Custom Software Development and Artificial Intelligence and were founded in 2012.Read More
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34271Undisclosed50 - 249 employeesGlasgow, ScotlandAltia-ABM, a software development firm, is located in Glasgow, Scotland. Launched in 2002, the team focuses on Custom Software Development.Read More
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34272Undisclosed2 - 9 employeesGlasgow, ScotlandIn Glasgow, Scotland, Orion Practice Management Systems Ltd is a small custom software development company. The team focuses on Custom Software Development.Read More
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34273Undisclosed50 - 249 employeesGlasgow , ScotlandLuminis UK Limited is a software development company. Founded in 2002, the team focuses on Custom Software Development and IT strategy consulting.Read More
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34274Undisclosed250 - 999 employeesGlasgow , ScotlandOpidis is a software development company. Headquartered in Glasgow , Scotland, the agency provides Custom Software Development.Read More
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34275Undisclosed10 - 49 employeesGlasgow , ScotlandSIMUL8 Corporation is a Glasgow , Scotland-based software development firm. Launched in 1994, the team focuses on Custom Software Development.Read More
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34276Undisclosed50 - 249 employeesGlasgow, ScotlandSoftware development company Blackbaud Europe is in Glasgow, Scotland. They offer Custom Software Development.Read More
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34277Undisclosed2 - 9 employeesGlasgow , ScotlandLaunched in 2014, HubSolv is a small software development company. Their team offers Custom Software Development.Read More
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34278Undisclosed2 - 9 employeesFirst Bridge Systems Ltd is a custom software development firm headquartered in Glasgow , Scotland. The team focuses on Custom Software Development.Read More
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34279Undisclosed1,000 - 9,999 employeesGlasgow, ScotlandIT Researches is a software development firm. Their large team is located in Glasgow, Scotland. Their team specializes in Custom Software Development and Artificial Intelligence.Read More
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34280Undisclosed10 - 49 employeesLondon, EnglandClock Software, a software development company and mobile application development company, was founded in 1996. They provides Custom Software Development and Mobile App Development.Read More
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34281Undisclosed10 - 49 employeesGlasgow , ScotlandSerial Affinity is a custom software development firm and Application Management & Support company. Their team provides Custom Software Development.Read More
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34282Undisclosed2 - 9 employeesGlasgow , ScotlandMARLIN GLOBAL LP is a software development company. They are located in Glasgow , Scotland and have small team. Their team offers Custom Software Development.Read More
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34283Undisclosed2 - 9 employeesGlasgow , ScotlandIn Glasgow , Scotland, FutureSens is a small custom software development firm. The team focuses on Custom Software Development.Read More
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34284Undisclosed1,000 - 9,999 employeesDhaka, BangladeshFounded in 1993, Softline Bangladesh is a large Dhaka, Bangladesh-based software development firm. Their team focuses on Custom Software Development and cloud consulting & SI.Read More
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34285Undisclosed10 - 49 employeesGlasgow , ScotlandSpartan Solutions Ltd is a small custom software development company and mobile app development firm founded in 2004. Their team focuses on Custom Software Development and Mobile App Development.Read More
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34286Undisclosed2 - 9 employeesEident IT Training & Development is a custom software development firm. The team is located in Glasgow , Scotland, and their services include Custom Software Development.Read More
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34287Undisclosed10 - 49 employeesGlasgow , ScotlandVersko Ltd is a software development firm founded in 2001. The agency focuses on Custom Software Development, and is small.Read More
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34288Undisclosed10 - 49 employeesKirkland, WAJetstream Software, Inc., a software development company, provides Custom Software Development and AR/VR development. The agency is located in Kirkland, Washington.Read More
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34289Undisclosed50 - 249 employeesKirkland, WADev9 is a custom software development company. The team is headquartered in Kirkland, Washington, and their services include Custom Software Development and IT managed services.Read More
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34290Undisclosed2 - 9 employeesSan Diego, CALSI Consulting is a custom software development company founded in 1998. In San Diego, California, the team specializes in Custom Software Development and Public Relations.Read More
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