Top 30 Software Development Companies in Northern Ireland
The Best of July 2025Looking for a top software developer in Northern Ireland?
As the use of mobile and web apps rise, your business’s digital presence becomes even more important. The biggest challenge facing organizations is how they can keep up in the digital world. The best way is to continuously develop up-to-date software that allows your organization to maintain an impactful digital presence.
To assist you in your search for a partner, we’ve compiled this list of the top software development companies in Northern Ireland. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Northern Ireland Software Developers
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1$50,000+50 - 249 employeesBelfast, Northern IrelandRead More
Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.
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2$50,000+50 - 249 employeesLurgan, Northern IrelandGCD, a software development company, was launched in 1999. The midsize team offers Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The company is headquartered in Lurgan, Northern Ireland and Dublin 2, Ireland.Read More
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3Undisclosed10 - 49 employeesBelfast, Northern IrelandRead More
Sugar Rush Creative is an app and software development agency based in Belfast. The company was founded in 2003. Since then, it has become a leading digital agency in Northern Ireland and the UK, employing around 10. Sugar Rush Creative has provided market-leading mobile apps, digital animations and web software to clients in industries such as public service, healthcare, education, hospitality, compliance, and many more.
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4$10,000+10 - 49 employeesLisburn, Northern IrelandScaffold Digital is a software development firm. They are located in Lisburn, Northern Ireland and have a small team that provides Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The firm was launched in 2008.Read More
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University of UlsterIndustries
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5$1,000+2 - 9 employeesDownpatrick, Northern IrelandTriggerAppy Ltd is a Downpatrick, Northern Ireland-based custom software development company. The small team focuses on Custom Software Development, Web Development, Mobile App Development, and Other Application Development. The firm was launched in 2012.Read More
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6$1,000+10 - 49 employeesBelfast, Northern IrelandRead More
The House Of Code is a mobile app development company. Established in 2019, the small agency is located in Belfast, United Kingdom and Kraków, Poland. Their services include mobile app development, custom software development, web development, and other IT consulting and SI.
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7$25,000+2 - 9 employeesBelfast, Northern IrelandNigma Software is a software development company established in 2020. The small Belfast, Northern Ireland-based team offers Custom Software Development, Web Development, Mobile App Development, Artificial Intelligence, and more.Read More
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8$1,000+10 - 49 employeesBelfast, Northern IrelandLaunched in 2020, DJINN DIGITAL is a software development firm. Their small team is located in Belfast, United Kingdom. Their services include custom software development, mobile app development, application management & support, ux/ui design, and more.Read More
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9$1,000+2 - 9 employeesBelfast, Northern IrelandCustom software development company Insight Legal is located in Farnborough, England and Belfast, Northern Ireland. They offer Custom Software Development and were launched in 2012.Read More
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10$50,000+250 - 999 employeesBelfast, Northern IrelandMidsize software development firm Kainos, is based in London, England and Belfast, Northern Ireland. The team provides Custom Software Development and Web Development.Read More
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11Undisclosed50 - 249 employeesBelfast, Northern IrelandFounded in 2004, Anaeko is a custom software development firm. The company offers Custom Software Development and cloud consulting & SI.Read More
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12Undisclosed50 - 249 employeesNewcastle, Northern IrelandTest Driven Solutions Ltd. Is a software development company and Application Testing company. They provide Custom Software Development and Application Testing and were launched in 2020.Read More
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13$10,000+10 - 49 employeesBelfast, Northern IrelandAnalytics Engines is a data analytics company. Based in Belfast, Northern Ireland, the agency specializes in BI & big data consulting & SI and Artificial Intelligence.Read More
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14$100,000+1,000 - 9,999 employeesBelfast, Northern IrelandUnosquare, LLC is a custom software development firm. They offer Custom Software Development, IT staff augmentation, Digital Engineering, UX/UI Design, and more and were established in 2009. Their large team is headquartered in Portland, Oregon; Guadalajara, Mexico and Belfast, Northern Ireland.Read More
Clients
Axos Financial, Green Dot Bank, GTreasury, G2 Risk Solutions and Blue Owl Private Equity Stitch Fix and IDX Harvard and McGraw Hill Athena Health and Foundation MedicineIndustries
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15Undisclosed2 - 9 employeesBelfast, Northern IrelandLaunched in 2013, Nuvem9 Ltd is a small Belfast, Northern Ireland-based custom software development firm and Accounting company. Their services include Custom Software Development and Accounting.Read More
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16$5,000+2 - 9 employeesBelfast, Northern IrelandRead More
Erised, a web development firm, was launched in 2021. The small team focuses on web development, custom software development, mobile app development, and e-commerce development. The firm is based in Leeds, United Kingdom.
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17Undisclosed50 - 249 employeesNewcastle, Northern IrelandEque2 Ltd is a custom software development firm. Headquartered in Maidenhead, England and Farnham Surrey , England, the team specializes in Custom Software Development and ERP consulting and SI.Read More
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18$5,000+10 - 49 employeesBelfast, Northern IrelandENGEN, a web design company, was founded in 2018. The team offers Web Design and Web Development.Read More
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19$25,000+10 - 49 employeesBelfast, Northern IrelandLogic+Magic is a branding firm. They are headquartered in Birmingham, England; London, England; Belfast, Northern Ireland and Carlisle, England and have a small team that offers Branding, Social Media Marketing, Content Marketing, Search Engine Optimization, and more. The company was established in 2009.Read More
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One Stop StoresIndustries
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20$1,000+10 - 49 employeesBelfast, Northern IrelandJuggernaut Digital is a web development company established in 2020. The agency focuses on Web Development and Web Design, and is small.Read More
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21Undisclosed10 - 49 employeesBelfast, Northern IrelandAllsop Intelligent Software is a small data analytics company. Founded in 1996, the team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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22$5,000+50 - 249 employeesNewcastle, Northern IrelandLaunched in 2015, Scott Logic is a midsize Newcastle, Northern Ireland-based software development firm. Their services include Custom Software Development and IT strategy consulting.Read More
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23Undisclosed10 - 49 employeesBelfast, Northern IrelandYarra Software, a small business intelligence company, is headquartered in Belfast, Northern Ireland. The team provides BI & big data consulting & SI and cloud consulting & SI.Read More
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24$10,000+10 - 49 employeesLisburn, Northern IrelandVITABYTE SOFTWARE is a software development company. The Lisburn, Northern Ireland-based team offers Custom Software Development and Web Development.Read More
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25$5,000+50 - 249 employeesNewry, Northern Ireland3rd Digital is a small Ahmedabad, India-based mobile application development company. Founded in 2017, the team specializes in mobile app development, web development, custom software development, ux/ui design, and more.Read More
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26Undisclosed2 - 9 employeesMagherafelt, Northern IrelandMalachy Devlin Software is a data analytics company in Magherafelt, Northern Ireland. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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27$10,000+Freelancer employeesBelfast, Northern IrelandServerless First is a small Belfast, Northern Ireland-based cloud consulting & SI company. Their services include cloud consulting & SI and Custom Software Development.Read More
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28$10,000+10 - 49 employeesNewry, Northern IrelandLaunched in 2012, RKM Software is a custom software development firm. The small team offers Custom Software Development and Mobile App Development.Read More
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