Top 100 JavaScript Development Companies in Sofia
November 2023Looking 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
- $10,000+
- 50 - 249 employees
- Sofia, Bulgaria
DevriX is a web development company founded in Sofia, Bulgaria in 2010. The company has a team of about 30 and has another office in New York, N.Y. DevriX specializes in web development, but also offers web design and digital strategy services.
Clients
- Audi
- Smart Meetings
- diginomica
- SwimSwam
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An internet media company partners with DevriX to provide WordPress support. The team is a resource for programmatic ad tech, improving the company’s advertising technology, as well as the UX and site layout.
"DevriX knows the market better than anyone else."
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2
- $50,000+
- 1,000 - 9,999 employees
- Sofia, Bulgaria
From Minneapolis, Minn., MentorMate has expanded to Sweden and Bulgaria. Founded in 2001, MentorMate is a custom software development company that also has experience in strategic consulting, cloud services, and Internet of Things (IoT).
Clients
- AstraZeneca
- Cambria
- DTN
- Edmentum
Industries
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MentorMate was hired to develop iOS and Android development for a bicycle retailer. They're also tasked with helping them rebrand to complement their own infrastructure.
"Mentormate is responsive, with talented employees and a well-tuned communication and service model."
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3
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
Founded in 2017, Lexis Solutions is located in Sofia, Bulgaria. Their team of about ten specialists provides web & mobile development and custom software development services to primarily midmarket firms and startups.
Industries
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Lexis Solutions provided market research for an automotive startup. The team focused on data scraping and analysis using Google Maps. They delivered business data collection that they helped classify.
"We were impressed by their customer-centric approach."
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4
- $25,000+
- 10 - 49 employees
- Sofia, Bulgaria
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.
Clients
- UNIQA
- Altrix
- Ucha.se
- Evrotrust
Industries
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Despark was hired by a training and coaching consultancy to build and develop an iOS-based app. The team collaborated closely with the client in designing the features, wireframe, and UX.
"We're very impressed with their ability to understand the idea and make it better than when we arrived."
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5
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
ExpandX is a web services provider and digital marketing agency headquartered in Sofia, Bulgaria. It also has locations in London, New York, Munich and Barcelona. The company was founded in 2015 serving clients globally with projects of different sizes and niches. ExpandX provides web development services, e-commerce solutions, social media marketing, PPC, web design, video marketing, and other related digital services.
Clients
- High Touch Investment Corp Inc (USA)
- Assent Inc (Canada)
- Luuup Textile Recycling (Switzerland)
- Abeauty (Italy)
Industries
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ExpandX developed a new website for a bakery shop. The team also helped develop a digital strategy, created a new brand visual identity, and designed new social media marketing assets for the client.
"They really went the extra mile and understood our core values, expectations, and gaps in terms of digital presence."
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6
- $25,000+
- 10 - 49 employees
- Sofia, Bulgaria
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
- CarsCentral
- PerryHealth Inc
- Saga
- Ethermind
Industries
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App Streams Ltd has provided custom software development services for a software development company. They have built a collaboration and knowledge management solution, added other features, and fixed the bugs.
"The project is going very well, and we are aligned on expectations and on the ways how we work together as a team."
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7
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
Small website development company Creative Corner, is headquartered in Sofia, Bulgaria. The team offers web development, web design, and branding.
Clients
- Vedra Interntaional
- Philips
- Anker
- B-Eye
Industries
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Creative Corner refreshed a Shopify development company's brand identity. The client needed to represent their growing company, and Creative Corner delivered a new logo, brand book, icon, and digital strategy.
"Creative Corner impressed us on all fronts: talent, process, communication, and value to money."
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8
- $10,000+
- 1,000 - 9,999 employees
- Sofia, Bulgaria
Founded in 1995, Coherent Solutions is a software development agency that offers web development, custom software development, and mobile app development services to their mid-market, enterprise, and small business clients in the IT, healthcare, and other industries. Their 10,000 employees are based out of offices in Minneapolis, Minn., Minsk, and Sofia.
Clients
- LifeTime Fitness
- Daikin
- WEX Health
- MTS Systems
Industries
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Coherent Solutions has built a B2C web app and a B2B SaaS platform for a roofing software company. The team has integrated third-party apps and an AI-powered financing solution and built an API for ML.
"The team is a well-oiled machine — extremely efficient."
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9
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
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
- Unicef
- Walltopia
- Trisa Bulgaria
- Kamenitsa
Industries
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Weband Studio developed a new corporate website for a lighting design and construction company. The team was responsible for building the new site from scratch and managing the project.
"The project was extremely organized and on time."
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10
- $5,000+
- 50 - 249 employees
- Sofia, Bulgaria
Keep Calm Labs is an e-commerce development company located in London, United Kingdom; Genève, Switzerland and Kyiv, Ukraine. The midsize team provides e-commerce development, mobile app development, ux/ui design, web development, and more and was launched in 2015.
Industries
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A retail company hired Keep Calm Labs to leverage the power of Magento to create two distinct, user-friendly, and visually appealing websites.
"Their commitment to understanding our industry makes them stand out."
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11
- $100,000+
- 50 - 249 employees
- Sofia, Bulgaria
ITIDO is a software development company based in Sofia, Bulgaria. They were founded in 2014 and have around 20 employees. Their services include custom software development and enterprise app modernization for primarily midmarket and small businesses.
Clients
- Nokia
- Bosch
- McCann
- Vonage
Industries
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ITIDO provided Node.js and Ansible development services to a technology consulting and implementation company, focusing on improving the client's AWS app development efforts. The team also used Kubernetes.
"The team of ITIDO is remarkably responsive and capable of delivering results."
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12
- $25,000+
- 10 - 49 employees
- Sofia, Bulgaria
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
- Hopper
- Reloyalty
- Colibra
- OceniMe
Industries
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Qualifast developed an iOS-based mobile app for an AI-based executive assistant platform. The team helped scale the resources needed for the project and implemented relevant features and functionalities.
"They employed good long-term thinking."
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13
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
Web 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.Industries
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Web Motion developed a tactical and hunting equipment retailer’s WooCommerce site. They migrated 5,000 products from a legacy platform and implemented SEO improvements.
"They could work independently and had a problem-solving approach."
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14
- $5,000+
- 2 - 9 employees
- Sofia, Bulgaria
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
- Jamadvice
- Urbo
- Kamax
- Jottum
Industries
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EditCreation designed and developed an automated system for invoicing and reporting. This involved meeting local government requirements for accounting purposes.
"The great communication from the team was key to the success of this project."
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15
- $50,000+
- 50 - 249 employees
- Sofia, Bulgaria
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
- SAP
- IOHK
- æternity
- IntraLinks
Industries
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Quanterall developed an EMV simulating system for a financial technology company. They're tasked with automating the client's EMV transactions testing by developing a testing backend system using Erlang.
"I was impressed with their motivation and professionalism."
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16
- $25,000+
- 50 - 249 employees
- Sofia, Bulgaria
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
- Progress
- Аmatas
- Vip Security
Industries
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Resolute Software provides ongoing mobile application development for a software company. The team is responsible for UI/UX design, user research, requirements engineering, and app deployment.
"The team strictly adheres to their commitments."
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17
- $10,000+
- 2 - 9 employees
- Sofia, Bulgaria
ThinkWeb, a website development company, was launched in 2009. The firm provides web development, custom software development, web design, and e-commerce development and has a small team. The firm is based in Sofia, Bulgaria.
Industries
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ThinkWeb has created a website for a watchmaking and retail company. The team has also developed a custom CRM solution for the client.
"We are satisfied with the delivered services."
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18
- $50,000+
- 50 - 249 employees
- Sofia, Bulgaria
Dreamix is a software development company founded in Sofia, Bulgaria in 2007. The firm’s 66 employees supply services in custom software development, enterprise app modernization, and web development. Their specializations lie in frameworks such as Spring MVC and AngularJS as well as languages in the Java family.
Clients
- VistaJet
- CloudCar
- Docomo Digital
- Fadata
Industries
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Dreamix has developed a web application and CMS for a digital health platform. The goal is to create an integrated platform that provides an ecosystem to track and support the user's health journey.
"They take pride in the development of the platform and are extremely technically proficient!"
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19
- $5,000+
- 2 - 9 employees
- Sofia, Bulgaria
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 SE
- Multisport
- Founded
- Imagination
Industries
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A marketing agency hired Sofyma for their web development services. The key goal for the project was to generate an educational website that their employees could rely on in terms of digital transitioning.
"There were no problems in contacting them for urgent issues."
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20
- $10,000+
- 10 - 49 employees
- Sofia, Bulgaria
MTR Design, established in 2005, is a web development firm based in Sofia, Bulgaria. It has about 15 employees. MTR design specializes in web development, but also provides artificial intelligence, web design, and custom software design.
Clients
- Pfizer
- ExxonMobil
- Channel 4
- Danone
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Building from a previous vendor’s work, MTR used PHP to develop the frontend and backend of a website aimed at gathering and analyzing user feedback. Design work and site maintenance rounded out the engagement.
"The software hasn't needed constant readjusting, so it’s been a very satisfactory experience."
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21
- $10,000+
- 10 - 49 employees
- Bistritsa, Bulgaria
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.
Industries
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Bulcode provides web app development for a fintech company. They’ve built an MVP that allows users to integrate the app into their systems. The team has also developed an API and an admin backend.
“They’re technical experts who know their stuff and deliver on it.”
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22
- $1,000+
- 10 - 49 employees
- Sofia, Bulgaria
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 Expressbank
- Microsoft Bulgaria
- ING
- Actavis
Industries
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Bulgarian Software House designed and developed a single-page, public-facing site for a machine parts manufacturer. The site provided information about the client's company, history, and manufacturing focus.
"I think they were very experienced in what they do and they provided great value for money."
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23
- $25,000+
- 10 - 49 employees
- Sofia, Bulgaria
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.
Clients
- Hubert Burda Media
- Auto 1 Group
- United Digital Group
- Calvendo
Industries
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Infoleven developed the firm's app prototype. The platform helped users in areas such as career choice and candidate selection. Further, interactive games were also created to check one's personal competencies.
"We will be happy to work again with Infoleven in the future."
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24
- $5,000+
- 250 - 999 employees
- Sofia, Bulgaria
Launched in 1999, Stanga1 is a custom software development firm. Their midsize team is based in Sofia, Bulgaria; New York, New York and Rosh Haayin, Israel. Their team offers custom software development, mobile app development, web development, e-commerce development, and more.
Clients
- limehome
- Medix
- Imperva
- Teva Pharmaceutical Industries
Industries
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Stanga1 produced an interactive video for an online medical training company. The goal was to show technical executions and the company's reliability in offering medical training online.
"They were reactive, accurate, and trustworthy."
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25
- $25,000+
- 10 - 49 employees
- Sofia, Bulgaria
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
- Pfizer
- Coca-Cola
- ING Group
- NN Group
Industries
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Code Runners provided extract, transform, load (ETL) services to consolidate a data dashboard of a media distributor. Their team also delivered SQL training for the employees of the organization.
“They were remarkably flexible in the face of changing requirements.”
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26
- $10,000+
- 10 - 49 employees
- Sofia, Bulgaria
Perspective Web Ltd. is a digital design agency that was founded in 2014 and is based in Sofia, Bulgaria. They comprise three employees who offer a range of UX and UI design, mobile app development and custom software development services. They provide market research, visual designs and CMS services for a range of large businesses.
Clients
- AT&T
- Generali
- Royal IHC
- EASPD and many others.
Industries
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A valet service company hired Perspective Unity Ltd. to provide web development. They created the site from scratch and added reservation and customer management functionalities.
''There wasn't anything impossible for them to do.''
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27
- $25,000+
- 2 - 9 employees
- Sofia, Bulgaria
Softaware 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.Industries
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Softaware Ltd. provides iOs and Android app development services for an educational platform. Collaboratively, they set up the project scope including design, chat feature, and the overall development process.
"Softaware Ltd. feels like an extension of us, rather than a third-party vendor."
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28
- $5,000+
- 50 - 249 employees
- Sofia, Bulgaria
XploraBG is a digital agency in Sofia, Bulgaria. Founded in 2015, they have about 20 employees that do digital strategy, social media marketing, web development, and content marketing.
Clients
- Skoda
- KBC Group
- Viessmann
- Tymbark
Industries
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XploraBG provides ongoing marketing services for an electricity digital platform. The team is responsible for digital campaign strategies, landing page content, and providing reports and analytics.
"The XploraBG team's commitment and ability to react are integral to our effort to stay on top of the market situation."
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29
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
Founded in 2010, EntroSolutions is a development agency based in Sofia, Bulgaria. They primarily work with small businesses in the e-commerce industry. Their team focuses on custom software and e-commerce development.
Clients
- BMW
- Audi
- Nestle
- Decathlon
Industries
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EntroSolutions is a homewares retailer’s web development partner. They've rebuilt the client’s e-commerce site on OpenCart and AngularJS. Since the site launch, they’ve begun maintenance and added new features.
“I’d advise customers to hire EntroSolutions — their team can handle any OpenCart or AngularJS work.”
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30
- $5,000+
- 10 - 49 employees
- Sofia, Bulgaria
Ralev.com is a design strategy and digital experience agency founded in 2004 and located in Sofia, Bulgaria. The team of fewer than 50 employees provides branding services to small and midmarket businesses in the consumer products and services, business services, and e-commerce industries.
Clients
- SBtech
- EU Comission
- Servier
- Societe Generale
Industries
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Ralev.com Digital Design Agency created a logo and brand book for an IT company. Their work included various business cards, email templates, brochure templates, and a logo book.
“We were always informed where they are and what they were working on.”
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