Top 100 JavaScript Development Companies in Sofia
The Best of December 2025Looking for a top JavaScript developer in Sofia?
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 Sofia. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Sofia JavaScript Developers
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1$50,000+1,000 - 9,999 employeesSao Paolo, BrazilRead More
Headquartered in L'viv, Ukraine; New York, New York; Saratoga, California and Bellevue, Washington, Sigma Software Group is a software development company. The large agency was established in 2002. Their services include Custom Software Development, Web Development, Mobile App Development, BI & big data consulting & SI, and more.
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VolvoIndustries
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2$50,000+50 - 249 employeesSofia, BulgariaHeadquartered in Tallinn, Estonia; Sofia, Bulgaria; Kharkiv, Ukraine and Vinnytsia, Ukraine, CodeIT is a midsize AI Consulting company. They focus on AI Consulting, Artificial Intelligence, and Web Development and were launched in 2007.Read More
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RoomsterIndustries
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3$100,000+250 - 999 employeesSofia, BulgariaRead More
Founded in 2010, Arcanys is a software development company. They are in Cebu City, Philippines; Sofia, Bulgaria and Camberwell, Australia and have a midsize team. The agency offers Custom Software Development, Web Development, Artificial Intelligence, and IT staff augmentation.
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General Electric KoreaIndustries
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4$50,000+250 - 999 employeesSofia, BulgariaRead More
Founded in 2007, Dreamix is a midsize custom software development company headquartered in Sofia, Bulgaria and Cirencester, England. Their services include Custom Software Development, IT staff augmentation, Web Development, IT strategy consulting, and more.
Clients
VistaJetIndustries
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5$10,000+250 - 999 employeesSofia, BulgariaRead More
Accedia is a Sofia, Bulgaria-based software development firm. They specialize in Custom Software Development, Web Development, Artificial Intelligence, Cybersecurity, and more and were launched in 2012.
Clients
Alexander ForbesIndustries
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6$50,000+1,000 - 9,999 employeesSofia, BulgariaArtificial intelligence firm Coherent Solutions is located in Minneapolis, Minnesota; Sofia, Bulgaria; Vilnius, Lithuania and București, Romania. The large team offers Artificial Intelligence, Custom Software Development, Web Development, cloud consulting & SI, and more and was established in 1995.Read More
Clients
WEX Wildflower Health MTS Systems MarketWiseIndustries
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7$25,000+10 - 49 employeesSofia, BulgariaRead More
Despark is a digital agency headquartered in London with an office in Sofia, Bulgaria. Since 2007, the team of about 40 has provided expertise in web development, mobile app development and UX/UI design. Despark focuses on clients in various industries including healthcare, financial services and consumer products.
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UNIQAIndustries
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8$50,000+1,000 - 9,999 employeesSofia, BulgariaMentorMate, a mobile application development firm, is in Minneapolis, Minnesota; Sofia, Bulgaria; Göteborg, Sweden and Asunción, Paraguay. The company provides Mobile App Development, UX/UI Design, Custom Software Development, Web Development, and more and has a large team.The company was established in 2001.Read More
Clients
AstraZenecaIndustries
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9$10,000+10 - 49 employeesSofia, BulgariaLexis Solutions is an AI Consulting company. The Sofia, Bulgaria-based firm was established in 2017. The small team focuses on AI Consulting, Custom Software Development, Web Development, Mobile App Development, and more.Read More
Clients
Onnoplus.com Kreston Bulmar Reviewhero.io Inoreader.comIndustries
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10$10,000+50 - 249 employeesSofia, BulgariaDevriX is a Digital Strategy company. The midsize Sofia, Bulgaria-based firm was established in 2010. Their services include Digital Strategy, Web Development, Business Consulting, Marketing Strategy, and more.Read More
Clients
Audi X-Pole Unblu Arms DirectoryIndustries
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11$25,000+10 - 49 employeesSofia, BulgariaRead More
App Streams Ltd is a web development firm. Headquartered in Sofia, Bulgaria, their small team focuses on web development, mobile app development, application testing, ux/ui design, and more. The company was launched in 2018.
Clients
CarsCentralIndustries
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12$10,000+10 - 49 employeesSofia, BulgariaRead More
ExpandX is a web development firm. Their small team is in Sofia, Bulgaria; London, England; München, Germany and New York, New York. The firm specializes in Web Development, Social Media Marketing, Pay Per Click, E-Commerce Development, and more. The firm was established in 2015.
Clients
High Touch Investment Corp Inc (USA) Assent Inc (Canada and USA) South Themes Colleges Group (UK) Airhosted (Switzerland)Industries
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13$5,000+10 - 49 employeesSofia, BulgariaCreative Corner Studio is a web development firm. The small Amsterdam, Netherlands-based agency was founded in 2019. Their team specializes in Web Development, Web Design, UX/UI Design, Digital Strategy, and more.Read More
Clients
Vedra InterntaionalIndustries
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14$5,000+10 - 49 employeesSofia, BulgariaRead More
Launched in 2016, Weband is a website development company. The company provides web development, web design, custom software development, and ux/ui design and has a small team. The company is based in Sofia, Bulgaria and Edinburgh, United Kingdom.
Clients
UnicefIndustries
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15$5,000+2 - 9 employeesSofia, BulgariaRead More
EditCreation is a software company founded in 2011 with fewer than 10 experts. Based in Sofia, Bulgaria, they offer custom software, web, and mobile app development solutions for small and mid-market firms in the fields of arts, gambling, and other industries.
Clients
JamadviceIndustries
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16$5,000+10 - 49 employeesSofia, BulgariaWeb Motion is a Sofia, Bulgaria-based software development firm. The small firm was founded in 2009. Their services include custom software development, web development, mobile app development, and Artificial Intelligence.Read More
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17$10,000+10 - 49 employeesSofia, BulgariaRead More
Bulcode is a computer software company based in Sofia, Bulgari. Founded in 2016, they employ nine staff who provide a full suite of Drupal services for small and large companies. These services include website development, digital consulting, and support with security and hosting.
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18$50,000+50 - 249 employeesSofia, BulgariaRead More
Established in 2003, Quanterall is a blockchain company. The agency provides blockchain, custom software development, IoT development, mobile app development, and more and has a midsize team. The agency is in Sofia, Bulgaria.
Clients
SAPIndustries
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19$25,000+10 - 49 employeesSofia, BulgariaRead More
Qualifast is a software agency based in Sofia, Bulgaria, and founded in 2017. With more than two experts, they specialize in custom software, web, and mobile app development solutions for small and mid-market firms alike in the fields of consumer products and financial services.
Clients
HopperIndustries
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20$5,000+10 - 49 employeesSofia, BulgariaCustom software development firm TVM Engineering Services Ltd. Was launched in 2017. They are headquartered in Sofia, Bulgaria and Varna, Bulgaria and have a small team. TVM Engineering Services Ltd. Offers Custom Software Development, Web Development, Web Design, and UX/UI Design.Read More
Clients
IPG Automotive GmbH Carmovia GmbH grand position GmbH netmail emea gmbhIndustries
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21$25,000+50 - 249 employeesSofia, BulgariaRead More
Resolute Software is a software engineering and consulting company located in Lawrenceville, Ga. Founded in 2019, they currently have about 18 employees. They provide custom software development, IT strategy consulting, and cloud consulting and Si services to primarily midmarket firms and enterprises.
Clients
ProgressIndustries
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22$10,000+2 - 9 employeesSofia, BulgariaRead More
Headquartered in Sofia, Bulgaria, ThinkWeb is a website development firm. The firm specializes in Web Development, Custom Software Development, E-Commerce Development, AR/VR development, and more and is small.The firm was established in 2009.
Industries
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23$5,000+2 - 9 employeesSofia, BulgariaRead More
Sofyma is a digital development agency that was founded in 2009 and is based in Sofia, Bulgaria. They have eight employees specializing in website design and development, website hosting and security, digital consulting, and internet marketing, SEO and SEM. They work with small and midmarket businesses, generally in advertising, finance and business services.
Clients
XING SEIndustries
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24$5,000+2 - 9 employeesSofia, BulgariaRead More
Fundamental Studio Ltd. Is a small software development company established in 2016. Their services include custom software development, web development, web design, branding, and more. The agency is headquartered in Sofia, Bulgaria.
Clients
Intellect - Schools of languagesIndustries
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25$5,000+10 - 49 employeesSofia, BulgariaCleverix - Software Engineering, an Application Testing company, was launched in 2022. The firm focuses on Application Testing, Web Development, Mobile App Development, and UX/UI Design and has a small team.Read More
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26$1,000+10 - 49 employeesSofia, BulgariaRead More
Looming Tech, an app development company, is located in Sofia, Bulgaria and London, United Kingdom. The agency offers mobile app development, web development, custom software development, e-commerce development, and more and has a small team.The agency was founded in 2020.
Clients
Lyst (http://lyst.co.uk/) Which (http://which.co.uk/) Imray Laurie Norie & Wilson (http://imray.com/) Hintsa (https://www.hintsa.com/)Industries
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27$1,000+10 - 49 employeesSofia, BulgariaRead More
Bulgarian Software House (BSH) is a software service provider based in Sofia, Bulgaria. The company, founded in 2000, has a team of more than 20 that provided Unified Communications Consulting & SI, custom software development, enterprise app modernization, web development, and cloud consulting & SI services. BSH serves mid-market and enterprise-sized companies in the financial services, medical, and telecommunications industries.
Clients
Societe Generale ExpressbankIndustries
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28$25,000+10 - 49 employeesSofia, BulgariaRead More
Infoleven is a web and app development company founded in 2015. Based in Sofia, Bulgaria and Munich Germany, they have a team of around 30 employees. Their services mainly focus on custom software development, web development, and ERP consulting & SI.
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Hubert Burda MediaIndustries
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29$25,000+2 - 9 employeesSofia, BulgariaSoftaware Ltd. Is a website development company headquartered in Sofia, Bulgaria. The small agency was launched in 2021. Their team specializes in web development, mobile app development, and blockchain.Read More
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30$25,000+10 - 49 employeesSofia, BulgariaRead More
Code Runners is a software development firm founded in 2012 in Sofia, Bulgaria, with another location in Amsterdam, the Netherlands. The firm has about 40 employees. Code Runners specializes in custom software development, but also provides web development. Many of the firm's clients are in the advertising and marketing industry.
Clients
PfizerIndustries
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