12 Best React Development Agencies in Bulgaria for 2026

Companies seeking React development agencies in Bulgaria often face trade-offs between modern front-end expertise, predictable delivery timelines, and long-term code maintainability. When hiring for React projects, compare agencies on React and related-stack experience, server-side rendering and performance optimization, testing and CI/CD practices, team composition and turnover, communication and English proficiency, pricing and contractual terms, and post-launch support and maintenance.

SoftPro appears first as the featured partner for this roundup and serves buyers across Bulgaria as an international partner. The agencies that follow are evaluated against the same criteria to help buyers create a focused shortlist.

Quick comparison of React agencies in Bulgaria

1. SoftPro

As the featured international partner chosen to lead this list of React development agencies serving clients in Bulgaria, SoftPro is recommended for startups, small and medium-sized enterprises, and corporate development teams that need React-based web applications and progressive web apps with a focus on runtime performance.
SoftPro is headquartered in Warsaw, Poland, and the company pairs React front-end delivery with backend expertise in ASP.NET and .NET Core while supporting Node.js for integrated full-stack work. SoftPro highlights long-term maintenance and modernization projects and demonstrates repeatable enterprise delivery patterns.

Key Highlights

• Over 20 years of combined team experience reported on the company website.

• Cloud deployment experience across Microsoft Azure and AWS for infrastructure and production environments.

• Published case studies on the site include a business portal, CRM/HRM system, a SaaS ETL platform, and a social network for product promotion.

• Migration capabilities listed on the site include lift-and-shift approaches and containerization for legacy modernization.

Services

• Web application development

• Custom software development

• Cloud development

• Artificial intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/company/soft-pro-pl

2. Scalefocus

Scalefocus is a Sofia-headquartered software engineering firm that operates delivery hubs across Bulgaria and the surrounding region. The company’s site lists Product Engineering and Experience Design as core capabilities and includes a case study for a global CPQ portal that explicitly notes “React for Front End,” showing concrete React front-end experience on a client project.

Buyers evaluating Scalefocus for React work should review its Product Engineering and Experience Design pages and the CPQ case study that names React for the front end, and verify end-to-end delivery requirements such as cloud and DevOps support and AppCare 360 for maintenance and continuous delivery as documented on the site. Assess technical fit by confirming front-end responsibilities in specific case studies and by checking their delivery hubs in Bulgaria for local development capacity.

Key Highlights

• 1000+ completed projects and 300+ clients worldwide as stated on the company site.
• Maintains ISO 9001, ISO 27001, ISO 20000-1 and ISO 14001 certifications listed under Partnerships & Certifications.
• Public technology and partner listings include MuleSoft, Databricks, AWS, Alibaba Cloud, and VMware.
• Operates proprietary platforms named Scalefocus AION for enterprise AI deployments and Scalefocus Synthesis for agentic software delivery workflows.

Services

• Product Engineering
• Experience Design
• Integrations
• Cloud & DevOps

Contact Information

Website: scalefocus.com

Phone: +359 2424 6484

Email: sales@scalefocus.com

Address: 69 Bulgaria blvd., Infinity B, floor 8, 1404 Sofia, Bulgaria

3. Lexis Solutions

Lexis Solutions builds AI-native web and mobile software from Sofia, Bulgaria, delivering agentic systems, intelligent data pipelines, and responsive web interfaces. Their case studies show delivery of web application surfaces and API-driven integrations; the Barton Malow project was exposed as a web application, Microsoft Teams integration, and a REST API, and the Finansi.bg case study highlights site speed and cross-browser user experience.

The website does not list React or other front-end frameworks by name. Buyers seeking React expertise should ask Lexis Solutions which front-end frameworks were used on the web application surfaces in the referenced case studies, request performance metrics (for example Lighthouse or speed benchmarks) from projects like Finansi.bg, and confirm how client interfaces integrate with REST APIs and streaming state mechanisms described in the Barton Malow implementation.

Key Highlights

• Select partner in the Claude Partner Network (Select tier) available on the company homepage.
• ISO 9001:2015 certified software company as shown on the homepage.
• Recognised on Clutch as "Top AI Consulting Company in Berlin, 2026" with a 5.0/5 rating across 34 verified reviews.
• Offers a fixed-scope "NewBuild an AI Workflow" product promising one AI workflow shipped in 14 days for a fixed fee, mentioned on a case-study page.

Services

• Web & mobile app development
• AI agent and assistant development
• Data pipelines and Retrieval-Augmented Generation (RAG)
• LLM APIs and integrations

Contact Information

Website: lexis-solutions.com

Address: Sofia, Bulgaria

4. Ever Technologies LTD

Ever Technologies LTD builds reactive, real-time web platforms and native and hybrid mobile applications. Its Technologies We Use section explicitly lists React + Redux, React Native, Next.js, TypeScript and Node.js, and the site highlights client projects such as Best LMS (200K+ USD budget, 14 months) and HIURD (100K+ USD, 12+ months).

Buyers evaluating Ever Technologies for React development should review the Technologies page and team bios that show multiple Bulgaria-based engineers with React and Next.js experience, and examine the site’s approach pages (Discover, Build, Staff, Support) together with client reviews to confirm delivery model and project scale.

Key Highlights

• The site lists 100+ contributors and 20+ employees.
• The company maintains open-source platforms Ever Gauzy and Ever Teams.
• DevOps and cloud capabilities are documented, including Docker, Kubernetes, Amazon AWS, Microsoft Azure and Google Cloud.
• The services menu includes advisory offerings labeled CTO as a Service and Co-Founder as a Service.

Services

• Design & Creative
• Quality Assurance
• CTO as a Service
• Co-Founder as a Service

Contact Information

Website: ever.tech

5. Bulgarian Software House (BSH)

Bulgarian Software House (BSH) is a Sofia-based IT firm and a long-tenured Microsoft partner that delivers custom software and cloud solutions. The company's public site highlights Application Development, Azure Cloud, SharePoint implementation, and DevOps capabilities but does not publish explicit references to React, Progressive Web Apps, service-worker implementations, or front-end Lighthouse performance case studies.

Buyers assessing BSH for React development should request front-end code samples that demonstrate single-page application architecture, service-worker or offline behavior, and Lighthouse or comparable performance reports to confirm PWA and performance expertise. If those artifacts are not available, buyers can evaluate BSH's cloud hosting and delivery discipline by reviewing the firm's Azure and DevOps references and its security and partner credentials listed on the site.

Key Highlights

• Achieved Microsoft Solutions Partner for Digital & App Innovation (Azure) recognition on May 16, 2025.
• Attained Cyber Essentials Certification on September 26, 2025.
• Holds a Microsoft Silver Partner Licensing Solutions Competency.
• Lists enterprise clients that include Microsoft, A1, Lufthansa Technik, and UniCredit Bulbank.

Services

• Power Platform Implementation
• SharePoint Implementation
• Microsoft Teams Custom Solutions
• Managed Services for Microsoft 365

Contact Information

Website: www.bsh.bg

Email: office@bsh.bg

Address: 1 Mladen Pavlov Str., 4th Floor, 1124 Sofia, Bulgaria

6. Atom Solutions Ltd.

Atom Solutions is a Sofia-based web, mobile and game development studio that lists React.js and React Native among its core technologies on the official site. The company’s public portfolio highlights multiple web and mobile projects and names specific titles where frontend and mobile frameworks are called out, including projects for casino and consumer apps.

Buyers evaluating Atom Solutions for React development should inspect the company’s case-study pages that include explicit “Used technologies” tags and launch links, confirm the dedicated-team delivery language on the site that says they build, coach, and manage hand-picked teams in Bulgaria, and request technical references for the named React projects. The site does not document Progressive Web App features, service workers, or offline-first implementations, so clients should ask the vendor for evidence of caching and performance strategies when assessing PWA or offline requirements.

Key Highlights

• Case-study pages include explicit “Used technologies” tags and launch links, which let buyers verify technology claims quickly.
• Backend work on the site references micro-services implemented with Node.js and TypeScript for complex platforms.
• The public portfolio contains multiple HTML5 and game titles built with Phaser/PixiJS and Adobe AIR, showing cross-platform game experience.
• Several projects list WordPress and custom CMS integrations for ecommerce and content-heavy sites, indicating CMS delivery capability.

Services

• React.js development
• React Native mobile apps
• Custom CMS & WordPress integration
• HTML5 game development

Contact Information

Website: www.atomsolutions.net

Phone: +359 887 622 774; +359 886 007 444

Email: ask@atomsolutions.net

Address: Sofia 1463, Bulgaria, 9 Zdrave Str.

LinkedIn: linkedin.com/company/atomsolutions

7. Devision

Devision is a Sofia-based software consultancy that delivers bespoke web and mobile applications and offers dedicated development teams and team augmentation. Its Technologies page lists React and React‑Native among primary frameworks, and the Our Work section includes a “Dedicated Development Team for Management Events” case that references progressive web and mobile app development and an Eduspire product case that was optimized for responsiveness under high concurrent usage.

Buyers evaluating Devision for React projects should review the Technologies page for evidence of React and React‑Native expertise, read the Management Events case study to confirm progressive web app delivery and CI/CD/DevOps practices, and request examples that show responsive front-end performance and cloud deployment on AWS or Azure. Devision also publishes ISO certifications and a Clutch score on its site, which buyers can use to verify quality management and information-security standards.

Key Highlights

• ISO 9001, ISO 27001 and ISO/IEC 20000 certifications listed on the site.
• Clutch score shown as 4.9/5.
• Client portfolio visuals include ABB, Bayer and Allianz.
• Website states more than 15 years’ experience in custom software development.

Services

• Web Application Development
• Mobile Application Development
• Team Augmentation
• DevOps Engineering

Contact Information

Website: www.devision.com

Phone: +359 2 437 22 12

Address: Synergy Tower Bul. Tsarigradsko shose 111P, 1784 Sofia

8. Stanga

Stanga is a Sofia-headquartered custom software engineering firm and team-extension provider with roots dating to 1999. The company’s public technology roster explicitly lists React, React Native, Next.js, TypeScript, Material UI, Storybook, Jest, Cypress, and Vercel as part of its frontend and tooling stack.

For vendors evaluating Stanga for React work, inspect their portfolio and onboarding model against the stack and delivery tools the site lists. The site does not mention Progressive Web App, PWA, or service workers, so buyers should request explicit PWA or offline-first examples when PWA functionality is required, and otherwise validate React work by reviewing projects, Storybook component libraries, TypeScript usage, CI/DevOps pipelines, and Playwright/Cypress test coverage shown in proposals or case materials.

Key Highlights

• ISO 9001 and ISO 27001 badges are displayed on the site.
• Named enterprise clients shown on the site include McDonald’s and Volkswagen.
• The company lists formal partnerships and badges such as Microsoft Gold Partner and Oracle Gold Partner.
• Stanga lists R&D centers and offices across the region with Sofia (HQ) and Plovdiv, plus locations in Serbia, Poland, Romania, Ukraine, and Georgia.

Services

• Web Software Development
• Mobile App Development
• DevOps & Security
• Design Services (UX/UI)

Contact Information

Website: www.stanga.net

Address: HQ 1407 Sofia, Bulgaria, 47 Cherni Vrah Blvd., fl. 5

9. Platform Services

Platform Services is a full-service EU-based outsourcing software development company with more than 20 professionals, and its homepage lists web development, mobile application development, SaaS, PaaS, product maintenance, QA, and DevOps. The public site displays named client testimonials and a portfolio link but does not mention React, Progressive Web App work, service workers, offline-first architecture, or Lighthouse/performance engagements.

Buyers evaluating Platform Services for React development should review the portfolio items and the listed client testimonials and request concrete React or PWA case examples and code samples. Because the site emphasizes web and mobile application delivery plus product maintenance, QA, and platform work, buyers can use those adjacent capabilities to vet front-end integration and performance practices before asking for specific React or performance audits.

Key Highlights

• The company states it has achieved ISO/IEC 27001:2013 information security management certification.
• The homepage announces that all Platform Services products are now available under the Innovation Cloud brand following an acquisition.
• The site includes named client testimonials, for example Clinical Trial Soft Lab Inc., Medical Clinic Jokovic, Minino planeri, and Kloopko Crafts.

Services

• Web Development
• Mobile Application Development
• SaaS
• Quality Assurance

Contact Information

Website: platformservices.net

Email: office@platformservices.net

10. Red Flask Studio Ltd.

Red Flask Studio Ltd. is a Varna, Bulgaria software studio that builds web and mobile applications and lists React and NextJS on its web development stack, alongside HTML and CSS.

For buyers evaluating the firm for React or Next.js projects, review the site’s documented development process—Discovery, Prototype, Develop, Launch—and the stack and architecture notes on the Web Development page to verify team roles, UI/UX mockups, and prototyping practices. The site does not mention Progressive Web Apps, service workers, or offline-first caching, so confirm PWA experience directly with the team.

Key Highlights

• Lists native and cross-platform mobile technologies such as Swift, SwiftUI, Kotlin, Jetpack Compose, Flutter, and Dart.
• Publishes an active blog with recent case-study posts, including a website case study dated 11 Aug 2026 and another dated 07 Aug 2025.
• Invites partner and outsourcing collaborations and positions itself for outsourced development work.

Services

• React & Next.js Development
• Web Development
• Cross-platform Mobile (Flutter)
• Native iOS & Android

Contact Information

Website: redflaskstudio.com

Phone: +359 877018863

Email: info@redflaskstudio.com

Address: 63 Gotse Delchev Str., 9000 Varna, Bulgaria (redflaskstudio.com)

11. Deploee

Deploee is a software company based in Sofia with an office in Los Angeles that develops custom software, ERP systems, B2B portals, AI agents, and cinematic websites.

The company website does not mention React or Progressive Web App features, but it highlights web and mobile platform work through projects such as a cinematic site for Bubspa Consult, the myStarsHub B2B portal, and a software-plus-hardware container depot for Trident Freight, which demonstrate front-end and mobile delivery capabilities.

Key Highlights

• 20+ years of technical experience and more than 50 systems delivered.
• Owns and publishes products: opAIrator, FinOps, and EVNT.
• opAIrator is presented as a voice AI agent product with data processing kept in the EU.
• States a commitment to reply personally within one business day.

Services

• Custom web applications
• B2B portals & ERP integration
• Cinematic websites
• AI voice agents & automation

Contact Information

Website: www.deploee.com

Phone: +359 879 486 443 (Sofia)

Phone: +1 213 537 9009 (Los Angeles)

Email: office@deploee.com

Email: bg@deploee.com

Email: us@deploee.com

Address: Sofia, Bulgaria

Address: Los Angeles, California, USA

12. Perspective Unity

Perspective Unity Ltd references Bulgarian law in its privacy policy and presents itself as a software studio that builds and modernizes custom web and business systems. The company’s site lists React and Next.js explicitly under frontend development and publishes case studies that show interactive, enterprise-grade web platforms.

Buyers evaluating Perspective Unity for React development should review the Technologies page where React and Next.js are described, inspect the careers/team pages to confirm front-end capacity, and read the firm’s case studies such as Benzin.bg and ParkFly for examples of interactive interfaces and integrations. The site also documents product care, SLAs, and dedicated teams for ongoing maintenance and post-launch support.

Key Highlights

• 10+ years of experience reported on the About page.
• 4.9 client rating shown on the About page.
• 80% client retention rate indicated on the About page.
• Front-end Lead listed by name on the Careers page: Kaloyan Kamburov.

Services

• Frontend development
• Product development
• Product care
• Discovery & strategy

Contact Information

Website: perspectiveunity.com

Conclusion

SoftPro is the featured international partner chosen to lead this list and is recommended for startups, small and medium-sized enterprises, and corporate development serving the Bulgarian market via cross-border delivery.

When choosing among these React specialists, prioritize demonstrable technical depth across the React ecosystem, including React Native, Next.js, TypeScript, and modern state-management approaches if your product requires them. Match the vendor’s delivery model to your needs by deciding between fixed-scope engagements, dedicated teams, or team augmentation and by confirming time-zone and communication fit. Require clear plans for post-launch maintenance, performance and security updates, and evidence of product and UX experience; ask for case studies and references that mirror your project’s complexity before committing.

Frequently asked questions

How much does hiring a React development agency in Bulgaria typically cost?

Costs vary widely depending on project scope, team composition, and agency seniority. Bulgarian agencies often offer competitive rates compared with Western Europe, but larger or longer-term projects will increase budget needs. Request a detailed estimate after a discovery phase to avoid surprises.

How do agencies like the featured SoftPro compare to firms such as Scalefocus or Bulgarian Software House?

Differences are usually visible in team size, service breadth, and target clients rather than core React skills. The featured company SoftPro appears alongside firms like Scalefocus and Bulgarian Software House, which may focus more on enterprise offerings. Choose an agency based on the specific technical experience and delivery model you need.

Which types of projects are best suited to the Bulgarian React agencies listed in this article?

They are well suited for MVPs, single-page applications, frontend modernization, and dedicated development teams. The local talent pool supports startups and established companies seeking cost-effective execution. For highly regulated industries, confirm domain experience before contracting.

What is the typical development timeline when engaging a React agency from Bulgaria?

Timelines depend on scope: small features or prototypes can take a few weeks while full product development often spans several months. Agencies generally begin with discovery and estimation before committing to delivery dates. Build in time for user testing, revisions, and QA when planning milestones.

What are the main risks and benefits of outsourcing React development to agencies like those listed?

Benefits include access to experienced developers, scaling flexibility, and potential cost savings. Risks include communication gaps, scope creep, and variability in delivery quality between vendors. Mitigate risks with clear requirements, regular checkpoints, and contractually defined milestones.