Top 20 JavaScript Development Companies in Oslo
The Best of December 2025Looking for a top JavaScript developer in Oslo?
If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.
To assist you in your search for a partner, we’ve compiled this list of the top JavaScript development agencies in Oslo. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Oslo JavaScript Developers
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1$1,000+1,000 - 9,999 employeesSingapore, SingaporeProbey Services is a web design company founded in 2016. The large team specializes in Web Design, Web Development, Mobile App Development, and Custom Software Development. The agency is based in London, England; New York, New York; Noida, India and Toronto, Canada.Read More
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2$25,000+250 - 999 employeesOslo, NorwayRead More
99x is a midsize custom software development firm. The Vitória, Brazil-based agency was established in 2004. Their team provides Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more.
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3$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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4$25,000+10 - 49 employeesOslo, NorwayCustom software development company Order Group was launched in 2013. The small Warszawa, Poland-based team provides Custom Software Development, Web Development, Mobile App Development, IT strategy consulting, and more.Read More
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5$5,000+50 - 249 employeesChernihiv, UkraineChe IT Group is a web development firm in Chernihiv, Ukraine; Kyiv, Ukraine; Zürich, Switzerland and Tallinn, Estonia. The midsize team specializes in Web Development, E-Commerce Development, Custom Software Development, Low/No Code Development, and more and was established in 2014.Read More
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Step2Web Meaningful Brands (Havas) Casa-Nobile Harley DavidsonIndustries
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6$50,000+50 - 249 employeesOslo, NorwayIntellectsoft is a software development company founded in 2007. The agency provides Custom Software Development, Mobile App Development, IT staff augmentation, Web Development, and more and has a midsize team. The agency is based in Miami, Florida; London, England; Oslo, Norway and Kyiv, Ukraine.Read More
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MitsubishiIndustries
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7$1,000+2 - 9 employeesHvalstad, NorwayRead More
Monkey Wizard Media is a Conversion Optimization company launched in 2023. Their small team is located in Hvalstad, Norway and specializes in Conversion Optimization, Email Marketing, Web Design, UX/UI Design, and more.
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Gnistr bookstore Pons Helsetun Orions Fashion SpillsjakkIndustries
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8Undisclosed250 - 999 employeesOslo, NorwayRead More
Itera is an IT development and communications agency headquartered in Oslo, Norway. Founded in 1989, they have about 400 employees and have mainly mid-market and enterprise clients. Their services include custom software development, web development, application testing, mobile apps, and digital strategy.
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StorebrandIndustries
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9$25,000+50 - 249 employeesOslo, NorwayRead More
Vimanet is a software development company located in Krakow, Poland. Founded in 2007, its team of about 20 specializes in custom software development and web development.
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4subseaIndustries
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10$10,000+10 - 49 employeesOslo, NorwayRead More
Karpi Studio is a web design company. They are located in Oslo, Norway and have a small team. Their services include web design, ux/ui design, web development, e-commerce development, and more.
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11$50,000+50 - 249 employeesOslo, NorwayRead More
Founded in 2006, Vector Software Ltd is an IT outsourcing company based in L'viv, Ukraine. They have more than 50 employees that specialize in application testing and development. They mostly work with mid-market and small businesses.
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Stingray - Optical delousing solutions for fishing industry;Industries
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12$25,000+10 - 49 employeesOslo, NorwayCustom software development firm Eyedea is headquartered in Białystok, Poland and Oslo, Norway. The team provides Custom Software Development and Web Development.Read More
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13$1,000+50 - 249 employeesOslo, NorwayGraphiq is an Oslo, Norway-based branding firm. Their services include Branding and UX/UI Design.Read More
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14$50,000+2 - 9 employeesLillestrøm, NorwayFounded in 2024, Algora is an AI development company. Their small team is in Lillestrøm, Norway. Their team offers Artificial Intelligence, Custom Software Development, Web Development, and E-Commerce Development.Read More
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15$25,000+2 - 9 employeesOslo, NorwayIn Oslo, Norway, Good Morning is a web design company and web development firm. Their services include Web Design and Web Development.Read More
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16$10,000+10 - 49 employeesOslo, NorwayNetlife Design is an Oslo, Norway-based Product Design company. The team focuses on Product Design and Web Development.Read More
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17$10,000+2 - 9 employeesOslo, NorwayInnovena is a branding company. Established in 2023, the team focuses on Branding and Web Development.Read More
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18$5,000+2 - 9 employeesOslo, NorwayUnited Works is a small PPC company. They specialize in Pay Per Click and Search Engine Optimization and were launched in 2002.Read More
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19Undisclosed50 - 249 employeesOslo, NorwayOther Application Development company Glocal View is located in Oslo, Norway and Noida, India. Launched in 2014, the team offers Other Application Development and IT staff augmentation.Read More
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20$5,000+10 - 49 employeesOslo, NorwayIbtidah Solutions is an application development company. They are in Oslo, Norway and Lahore, Pakistan. Their team offers Mobile App Development and Web Development.Read More
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21$1,000+Freelancer employeesOslo, NorwayLaunched in 2022, Nydli is a web design company. Their small team is headquartered in Oslo, Norway. Their team specializes in web design, web development, and e-commerce development.Read More
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22$1,000+2 - 9 employeesLier, NorwayOriginatorz is an IT strategy consulting company founded in 2023. The firm focuses on IT strategy consulting and Web Development.Read More
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23$10,000+50 - 249 employeesGamle Fredrikstad, NorwayRead More
Founded in 2000, Frontkom is headquartered in Warsaw, Poland with another location in Lublin, Poland. With nearly 50 employees, they provide custom software development, web development, and UX/UI design services to midmarket, enterprise, and small businesses.
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- ASUS - Mitsubishi Motors - WWF - Unicef - HBO - RedBull - Santander Denmark - Polish National Bank - Startups: StayForLongerIndustries
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24$10,000+50 - 249 employeesFredrikstad, NorwayRead More
Kilowott is a digital strategy, design, and development agency based in Fredrikstad, Norway, with offices in Goa, India; Apeldoorn, Netherlands; and Schorndorf, Germany. The agency, founded in 2014, has around 90 employees and provides digital strategy, UX/UI design, custom software development, web development, mobile app development, e-commerce development, AR/VR development, IoT development, AI, and blockchain services. Kilowott serves small and larger-sized companies in various sectors that include advertising & marketing, health care & medical, and government.
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NetflixIndustries
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