Top 14 Next.js Development Companies in Bulgaria

Companies planning a web project in Bulgaria often struggle to find a development partner that balances server-side rendering expertise, page performance, and SEO-friendly delivery within required timelines. When evaluating development companies, compare and React technical depth, experience with SSR and SSG workflows, performance and SEO track record, testing and CI/CD practices, team composition and availability, communication processes, and ongoing maintenance and support.

SoftPro is the featured international partner leading this list and serves buyers across Bulgaria. Compare SoftPro's portfolio, technical approach, and client references against the other firms to ensure alignment with your project scope, timeline, and budget.

1. SoftPro

As the featured international partner on this Top 14 Development Companies in Bulgaria list, SoftPro is presented for Bulgarian teams and buyers who need modern React-based front ends paired with enterprise back-end engineering. The firm is well suited to startups, scale-ups and corporate engineering groups that require remote delivery from a European software house and tight integration between front-end frameworks and server-side platforms.

SoftPro builds on a Microsoft-centered stack, working with, .NET Core and C#, and delivering cloud-native solutions on Microsoft Azure. The team executes enterprise CMS implementations and migrations, performs lift-and-shift and containerization work, and provides long-term maintenance and product evolution for complex systems.

Key Highlights

• EU-based team in Warsaw, Poland with more than 20 years of combined experience.
• Front-end expertise in React and for progressive web apps and server-rendered React front ends.
• AI services that include large language models, RAG architectures, ML model development and automation.
• Case studies covering Umbraco website projects, enterprise portals, CRM/HRM systems and SaaS ETL platforms.

Services

• Custom Software Development
• Web Application 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/in/kyrylo-o

2. Scalefocus

Scalefocus is a Sofia-based software engineering company that builds enterprise web and cloud systems for regulated industries and large organizations. Its front-end capability explicitly lists NextJS among the team’s core technologies, and the company pairs frontend engineering with product development and managed operations to deliver full lifecycle solutions.

That combination of Next.js-capable front-end engineers and end-to-end delivery was applied to a Bulgarian public-sector modernization where Scalefocus implemented a Unified Information System that used in its technology stack. This record of local delivery and enterprise integration makes Scalefocus a relevant choice for projects in Bulgaria.

Key Highlights

• Founded in 2012 in Sofia and expanded to multiple delivery locations across Bulgaria, North Macedonia, and Turkey with a US sales office.
• Reports 1000+ completed projects and 300+ clients worldwide.
• Operates Scalefocus AION, a platform for governed, on-premise AI deployments and enterprise AI adoption.
• Offers AppCare 360, a managed application continuity service for 24/7 monitoring and operations.

Services

• Product Engineering
• Cloud & DevOps
• AppCare 360
• Dedicated Teams

Contact Information

Website: www.scalefocus.com

Phone: +359 2424 6484

Email: marketing@scalefocus.com

Email: sales@scalefocus.com

Address: 69 Bulgaria Blvd., Infinity Tower B, fl. 8, 1404 Sofia, Bulgaria

3. Lexis Solutions

Lexis Solutions is a Sofia-based software studio that builds AI-native products, creating agentic systems, intelligent data pipelines, and user interfaces that surface model-driven features.
For projects the team pairs modern frontend frameworks with edge deployments on Vercel to deliver performant, production-ready web frontends that connect to model and data backends.

Key Highlights

• Claude-certified consulting partner and system integrator in the Claude Partner Network.
• ISO 9001:2015 certified software company as shown on the official site.
• Recognised as "Top AI Consulting Company in Berlin, 2026" by Clutch.
• Vercel Experts engagement model listed with engagements starting from 1,500€ for Vercel services.

Services

• React Development
• Node.js Development
• Intelligent Data Pipelines
• OpenAI Consulting

Contact Information

Website: lexis.solutions

Address: Sofia, Bulgaria

4. WebStart Agency

WebStart Agency builds websites, online stores, and business applications for small and medium businesses in Bulgaria using a modern stack centered on and TypeScript. The agency emphasizes fast, SEO-ready front ends and a compact team structure that gives clients direct access to developers during design and delivery.

Workflows at WebStart pair UI/UX design in Figma with code reviews and a focus on Core Web Vitals to improve search visibility and user experience. The company positions itself for projects that need measurable performance and clear, transparent pricing.

Key Highlights

• Founded in 2022 by a team of developers and has completed work for 30+ Bulgarian businesses.
• Published transparent pricing tiers: Starter €400–€600, Business €1,200–€2,000, E-commerce €2,000–€3,500.
• Offers monthly maintenance plans priced €75–€200 that include updates, backups, 24/7 monitoring, and speed optimization.
• Publicly reports Lighthouse targets per project (example site scores listed as Performance 98, Accessibility 100, Best Practices 100, SEO 100).

Services

• Next.js Development
• E-commerce (Shopify / WooCommerce)
• Technical SEO & Performance
• Maintenance & Hosting

Contact Information

Website: webstartbg.com

Phone: +359 87 787 8747

Address: Sofia, Bulgaria

5. Droxic

Droxic builds web platforms, e-commerce stores, and custom applications for mid-size and enterprise clients from its Bulgaria and Serbia offices. The agency pairs senior engineers, designers, and consultants to deliver full-lifecycle projects that move from strategy to long-term production support.

The team follows a React-first frontend approach and has executed a migration for the Clue platform, showing direct and server-side rendering experience. Droxic combines hands-on development with consultancy to embed engineers in client teams for extended engagements.

Key Highlights

• Umbraco Silver Partner status for sustained CMS delivery on the .NET stack.
• Strategic Truvio partner; Truvio won the eCommerce Germany Award in 2020 and again in 2026.
• Active delivery footprint across the DACH region, the Nordics, Benelux, and the UK.

Services

• AI Integration & Consulting
• Data & Analytics
• Security & DevOps

Contact Information

Website: droxic.com

Phone (Sofia): +359 2 8704704

Phone (Niš): +381 60 5704704

Email (General): hello@droxic.com

Email (New Business): pavel@droxic.com

Email (Careers / HR): veronika.videnova@droxic.com

Email (Niš office): office-nis@droxic.com

Address (Sofia): 65A Cherni Vrah Blvd., floor 3, office 11, 1407 Sofia, Bulgaria

Address (Niš): Ulica Mladih 4, 1st fl., Niš, Serbia

6. Kodin Soft

Kodin Soft is a Sofia-based software studio that develops full‑stack web and cloud-native platforms for product teams and startups.

Their site highlights front‑end work within space‑related projects, showing how they combine modern React frameworks with cloud integrations for scalable deployments.

Key Highlights

• Engagement models listed on the site: Product development, Managed team, and Extended team.
• Technology stack shown alongside includes Microsoft Azure, C#, and Python.
• Selected clients and projects featured on the site include Telescope Live, Green Team, and FFW.

Services

• Web development
• Mobile development
• Backend development
• Cloud-native development

Contact Information

Website: kodinsoft.net

Phone: +359 88 3605555

Email: info@kodinsoft.net

Address: Sofia, Bulgaria

7. Pixoriq

Pixoriq is a full-service digital agency with an engineering team in Sofia that builds websites, e-commerce stores and scalable web applications. The firm uses React and for web app development and pairs engineering with SEO and applied AI to deliver performant, SEO-friendly builds and measurable outcomes.

Their delivery model blends in-house design, development and marketing under one project team so implementations include performance optimization, content strategy and ongoing maintenance rather than handoffs between vendors.

Key Highlights

• 500+ projects shipped since 2011.
• 15+ years of continuous operation (founded 2011).
• 14-day money-back guarantee with no long-term contracts.
• AI chatbots built with OpenAI and Claude that claim 90%+ resolution rates.

Services

• Website Design (UI/UX)
• E-Commerce Development
• SEO & Digital Marketing
• AI Chatbots & Assistants

Contact Information

Website: pixoriq.com

Phone: +359 876 808 803

Address: Offices in Sofia · Zurich · New York

8. Aionys

Aionys is a European boutique IT company that builds full‑cycle web and software products for enterprise and startup clients. Their public technology list names React and for front‑end development alongside TypeScript and for production web platforms.

The company is registered in Bulgaria and operates an office in Sofia, which supports its inclusion on a list of development firms in Bulgaria. Aionys emphasizes direct owner-to-client communication and an end-to-end delivery model that combines design, engineering, and QA.

Key Highlights

• Registered as Aionys-Bulgaria LTD with Unique identification code 206989644 and VAT BG206989644.
• Maintains country-specific contact addresses, including bulgaria@aionys.com for Bulgaria inquiries.
• Publishes proprietary products named Tarvyx and Rythmos alongside client work.
• Lists Internet of Things (IoT), AR & VR, and AI among its solution offerings.

Services

• Custom Web Development
• UX/UI Design
• IT Staff Augmentation
• Quality Assurance & Testing

Contact Information

Website: aionys.com

Email: bulgaria@aionys.com

Email: alexey.grebennikov@aionys.com

Email: ivan.korytin@aionys.com

Address: Residential Complex Mladost 4 Business Park Sofia Street, Building No. 2, Sofia, 1715, Bulgaria

9. Diavante Digital

Diavante Digital is a founder-led web design and development agency based in Varna, Bulgaria that combines strategy, design, engineering, and technical SEO to ship marketing sites and web platforms. Their engineering practice hand-codes projects with and TypeScript to hit strict performance targets and keep builds maintainable after launch.

Most engagements run about fourteen weeks and are led start-to-finish by the same people to avoid handoffs. The studio pairs performance-driven frontend engineering with technical SEO and ongoing stewardship to support launches that measure and retain search visibility.

Key Highlights

• Founded in 2016 and intentionally small on purpose to limit active engagements.
• Commits to replying to enquiries within 48 hours.
• Projects include 90 days of post-launch stewardship as standard.
• Case work includes a 25,000-product e-commerce migration that drove roughly 70% organic traffic growth.

Services

• Web Development
• Technical SEO
• Mobile Apps
• Paid & Organic

Contact Information

Website: diavante.com

Phone: +359 887 772 788

Email: hello@diavante.com

10. Steven Studio

Steven Studio is a Bulgarian web studio operated by a single developer under Zhizhevo Stone EOOD that builds modern websites, online shops and custom web applications for small and mid-sized businesses. The studio presents real client projects, one-time pricing and the promise that the developer who writes the code is the same person clients contact for support.

The studio emphasizes fast delivery, direct developer contact and full source-code ownership while prioritizing site performance and search visibility, traits that align with performance-focused JavaScript frameworks even though the site does not list a specific front-end framework. These delivery and ownership guarantees make the studio a practical option for teams seeking a compact vendor for SEO- and performance-oriented production builds.

Key Highlights

• Pay-once pricing with explicit starting prices: landing pages from €399, online shops from €799, business sites from €999 and custom projects from €1,999.
• Yearly maintenance and hosting plan available from €149 after the first year, with self-managed hosting estimated at about €75 per year.
• E-commerce builds include integrations with Econt, Speedy, ePay and Borica and a stated 0% commission on sales.
• Core Web Vitals speed is measured before and after builds, and the studio offers an AI Visibility service aimed at getting sites cited by ChatGPT and Gemini.

Services

• Custom Web Applications
• E‑commerce Stores
• Developer by the Day

Contact Information

Website: stevenstudio.bg

Phone: +359 87 727 5750

Email: brixeat@gmail.com

Address: Sofia, Bulgaria

11. Sourcelab

Sourcelab builds SaaS and enterprise web platforms where digital trust and regulatory compliance are central, delivering product strategy through production-ready code for fintech, trust, and compliance-focused customers.

Their delivery model follows Kanban and continuous delivery with AI-assisted tooling and short iteration cycles to accelerate launches while keeping systems auditable and secure.

Key Highlights

• Most projects are implemented in, TypeScript, React, and PostgreSQL, and the engineering toolchain includes NestJS, GraphQL, Drizzle or Prisma, Playwright, Jest, and Cucumber.
• Sourcelab publishes implementation guidance and implements EU Digital Identity Wallet verifier work including OID4VP support, SD-JWT VC parsing, and ISO/IEC 18013-7 (mdoc) handling with typical integrations scoped to a 16–22 week timeline.
• The company operates a staffing subsidiary, Innovity, which supplies senior engineers and specialists who integrate directly into client teams.
• A recent engagement for EcBase implemented a Tailwind/Shadcn component system and a continuous Figma-to-React workflow to speed design-to-code delivery.

Services

• Full Online Platforms
• Enterprise Software Integration
• Machine Learning and AI Solutions
• Adaptive IT Capacity Services

Contact Information

Website: sourcelab.eu

Email: info@sourcelab.eu

Address: Campus X, 31 Alexander Malinov Blvd., 1729 Sofia, Bulgaria

Address: Orato Offices, H.J.E. Wenckebachweg 230-258, 1096 AS Amsterdam, The Netherlands

12. Stanchev Digital

Stanchev Digital is a Bulgaria-based web and SEO studio that combines technical web development with search optimization to prepare sites for both Google and generative AI search engines. The site lists among its technologies and documents a redesign case for a large Bulgarian sports e-commerce client, showing experience delivering SEO-conscious rebuilds with measurable business outcomes.

Work emphasizes technical SEO and measurable delivery rather than broad marketing promises, with case studies, blog analysis, and a portfolio of web projects that tie development changes to traffic and revenue metrics. The approach aligns development with structured data and site architecture work to preserve and improve organic performance during platform migrations.

Key Highlights

• More than 5 years of experience in AI SEO and generative optimization.
• Reports average client outcomes through January 2026: +433% organic traffic, +585% revenue, +148% conversion.
• Develops custom plugins and modules for WordPress, OpenCart and WooCommerce.
• States initial AI SEO optimization engagements typically take 2–4 weeks depending on site complexity.

Services

• SEO audits
• Content strategy
• Schema markup implementation

Contact Information

Website: stanchev.bg

Email: seo@stanchev.bg

13. Grow Easy (GrowEasyLtd)

Grow Easy (GrowEasyLtd) is a Bulgaria-based digital marketing agency that builds and optimizes business websites while managing paid search campaigns. The team emphasizes site functionality, technical website health, and Google platform integration to improve organic visibility and conversions.

That emphasis on technical performance and site health makes Grow Easy a practical partner for web projects that need fast, search-friendly architecture without implying a specific framework choice. Their multi-market campaign experience supports delivery for projects that require measurable traffic growth and analytics-driven iteration.

Key Highlights

• More than 8 years of experience in digital marketing and website optimization.
• Reports placing 500+ keywords on the first page of search engines.
• States it reached 12 million users in the past year.
• Offers a 100% guarantee on SEO results.

Services

• Website design and development
• SEO
• Google Ads
• Google My Business

Contact Information

Website: groweasyltd.com

Phone: (+359) 888 335 550

Email: office@groweasy.bg

14. Pixor

Pixoriq is a full-service digital agency that combines design, engineering, SEO, and applied AI to build websites and web applications. Their engineering team focuses on React and with backends to deliver performance-focused implementations for SaaS and product-led companies.

The agency operates an office in Sofia and coordinates delivery across Zurich and New York to align with client timezones. Pixoriq integrates product engineering with performance marketing and AI-driven tooling to accelerate launches and improve site performance.

Key Highlights

• 15+ years in operation (since 2011) and 500+ projects shipped.
• AI chatbots powered by OpenAI and Claude, with advertised 90%+ resolution rates for automated support.
• Three written client guarantees: 14-day money-back, no long-term contracts, and fixed-scope fixed-price engagements.
• Reported delivery and performance metrics include 98% on-time delivery, 3.2× average ROAS, and 99.9% client satisfaction.

Services

• Web Application Development
• Website Design (UI/UX)
• E-Commerce Development
• AI Chatbots & Assistants

Contact Information

Website: pixoriq.com

Phone: +359 876 808 803

Address: Offices in Sofia · Zurich · New York

Conclusion

SoftPro is the featured partner on this Top 14 list. To choose among Bulgarian providers, align your selection to project scale, regulatory constraints, product goals, and whether you need marketing-focused SEO work, e-commerce integrations, AI/data-driven features, or a compact single-developer studio versus a multi-disciplinary engineering team.
If performance and TypeScript are priorities, favor vendors that explicitly list those technologies and can share relevant case studies or architecture details. Request references, deployment and hosting plans, and a clear maintenance and scaling roadmap before committing.