Top 10 AI and Software Companies in Bulgaria

Key Highlights

• Software companies in Bulgaria range from large enterprise engineering firms to smaller specialist teams, with different strengths across custom development, data, cloud, and applied AI.
• Bulgarian market combines a sizable export-driven software sector, competitive engineering costs and a growing technology ecosystem, making it a strong market for advanced software development.
• When comparing AI consulting companies, look beyond advisory capabilities to evidence of solutions being built, integrated with existing systems and supported in production.

Why Software Companies in Bulgaria are a Strong Fit for AI Projects

Bulgaria has a sizable software sector, a strong international client base and a growing AI capabilities Nearly 10,000 ICT companies operate here, and around 70% work exclusively with clients abroad, Many Bulgarian software companies are therefore already used to working with international teams and customers.

On the AI side, things are moving quickly, too. The local ecosystem is growing across research, engineering talent and access to more advanced computing resources. In March 2025, the European High-Performance Computing Joint Undertaking selected Bulgaria to host one of six new EU AI factories. The €90 million BRAIN++ AI Factory will act as a shared hub for AI development, giving companies access to computing resources, datasets and technical support.

That growing capability comes without eliminating one of the market’s longstanding advantages: cost. Engineering rates remain below those in many parts of Europe, allowing companies to build experienced software and AI teams without Western European delivery costs.

How This List Was Built

To build this shortlist of top IT companies in Bulgaria for custom software and AI projects, we applied four filters covering local delivery presence, software development capabilities, proven AI work and relevance to international buyers.

• Substantial delivery presence. An established engineering operation with permanent staff and local management.
• Custom software is a core part of the business. Companies that design and build custom software for clients. Product-only vendors, staffing agencies, and general IT providers were excluded.
• AI in actual delivery. Evidence that AI, machine learning (ML), generative AI, or data engineering appears in client work.
• Relevance to international buyers. Evidence of delivery for US, UK, or other international clients, so the comparison reflects a partner an overseas CIO could realistically engage.

Top Software Companies in Bulgaria to Shortlist

1. Scalefocus

Founded: 2012

Size: 500+ employees

Clutch rating: 4.9/5 stars (39 reviews)

Overview: Scalefocus is a software engineering company focused on enterprise systems, data and increasingly AI-enabled delivery. Its work spans industries such as aviation, financial services, energy and technology, with capabilities covering software development, data engineering, analytics, and integration.

Key Services:

• AI strategy & advisory
• AI solutions
• Data engineering and advanced analytics
• Cloud and application integration

Why Choose Scalefocus: Scalefocus is well suited to larger, more complex technology environments where AI has to work alongside existing platforms, data flows and enterprise systems. Its breadth across software engineering, data, cloud and integration makes it a strong option when the engagement spans more than a standalone application or model.

2. Sirma

Founded: 1992

Size: 800+ employees

Clutch rating: 5/5 stars (8 reviews)

Overview: Sirma is one of Bulgaria’s longest-established software companies, with roots in AI going back to its founding. Today, it combines custom software and system integration with data engineering, Retrieval-Augmented Generation (RAG), agentic AI and Machine Learning Operations (MLOps) across industries such as finance, insurance, healthcare, and logistics.

Key Services:

• Custom software development
• Data and AI engineering
• Enterprise system integration
• Cloud and digital transformation

Why Choose Sirma: Sirma brings together AI, data, cloud and system integration for complex enterprise environments. In 2026, it achieved IBM Gold Partner status for its expertise across cloud, automation, and application modernization. Its Sirma.AI Enterprise platform also earned the company the Forbes Business Awards’ Company of the Year in ICT.

3. Accedia

Founded: 2012

Size: 250+ employees

Clutch rating: 4.9/5 stars (40 reviews)

Overview: Accedia is one of Europe's fastest-growing custom software and AI development companies, working with clients across the US, UK and Europe. Its 250+ in-house engineers cover software development, data, cloud and AI, while a dedicated AI Capability Center has delivered 50+ projects across GenAI, AI agents, machine learning and MLOps.

Key Services:

• Custom software development
• Generative AI & LLM development
• Agentic AI
• AI strategy & consulting

Why Choose Accedia: Accedia can support AI projects from early-stage Proof-of-Concepts (PoC) through production deployment, giving clients continuity as scope and technical requirements evolve. Its AI Capability Center brings together applied AI, data engineering and software development, with work spanning financial services, healthcare and manufacturing. Partnerships with Databricks, AWS and Microsoft add depth on the data and cloud side, while recognition at the 2026 AI Excellence Awards and International Brilliance Awards provides external validation of its AI work.

4. Astea Solutions

Founded: 2006

Size: 250+ employees

Clutch rating: Not listed on Clutch

Overview: Astea Solutions is a Sofia-headquartered software engineering and AI company serving clients in the US and other international markets across fintech, healthcare, insurance, education and media. Founded by professors and researchers from Sofia University's Faculty of Mathematics and Informatics, the company brings more than 20 years of experience in applied AI and data science.

Key Services:

• AI strategy and consulting
• AI and intelligent systems
• Custom software and platform engineering
• Data engineering and cloud delivery

Why Choose Astea Solutions: Astea combines strong software engineering with a research-heavy team, which is particularly valuable for technically demanding products involving AI and complex data. Professors, PhDs, and researchers make up a significant share of their specialists, reflecting the company’s academic roots. Its work spans AI agents, financial data infrastructure and risk systems, giving it experience across both applied AI and the engineering around it.

5. Lexis Solution

Founded: 2000

Size: 10–49 employees

Clutch rating: 5/5 stars (32 reviews)

Overview: Lexis Solutions is a boutique software company focused on building AI-native products, intelligent data pipelines, and web and mobile applications. Its AI work covers agentic systems, RAG, multimodal applications and workflow automation, alongside the data infrastructure needed to run them reliably in production. The company works with startups and established businesses across North America and Europe.

Key Services:

• AI-native product development
• Agentic and multimodal AI
• Data engineering and intelligent pipelines
• Web and mobile application development

Why Choose Lexis Solutions: Lexis is a good fit for companies looking for a smaller, hands-on team to take an AI product from idea through to production. Its focus is firmly on AI-native software, with recent work spanning enterprise AI assistants, AI-powered platforms, and large-scale data infrastructure. The company was named a Clutch Top AI Consulting Company in Berlin for 2026.

6. Intway

Founded: 2021

Size: 50+ employees

Clutch rating: 5/5 stars (7 reviews)

Overview: Intway is a custom software development and technology consulting company working across banking, insurance, healthcare, manufacturing, and other industries. Its AI practice covers RAG, machine learning, NLP, computer vision and model fine-tuning, alongside the data engineering and MLOps needed to move those systems into production. The company also provides broader application development, cloud, and modernization services.

Key Services:

• Custom software development
• AI and machine learning
• Data engineering and MLOps
• Cloud and technology modernization

Why Choose Intway: Intway can cover both the AI application and the data infrastructure behind it, which is useful when the two need to be developed together. Its Databricks partnership strengthens its capabilities around lakehouse architecture, data pipelines, and machine-learning workloads. Intway also has project experience across banking, life sciences, and document automation.

7. VECTOR Labs

Founded: 2018

Size: 50+ employees

Clutch rating: 5/5 stars (14 reviews)

Overview: VECTOR Labs is an applied AI and software development company with teams in Sofia and Manchester. Formerly known as CHILDISH.AI, it combines data science, AI engineering and custom software development, with a strong focus on healthcare, pharma, banking, manufacturing and media.

Key Services:

• AI strategy and advisory
• Custom AI and machine learning development
• AI agents and GenAI solutions
• Data science and custom software development

Why Choose VectorLabs: VECTOR Labs stands out when an AI project needs deeper data science or scientific expertise behind it, particularly in healthcare and other high-stakes environments. Its work includes regulated medical AI, predictive models for banking and pharma, and production systems for manufacturing and media.

8. Wiser Technology

Founded: 1998

Size: 600+ engineers

Clutch rating: 4.9/5 stars (42 reviews)

Overview: Wiser Technology is a Sofia-headquartered engineering company with its specialists working on complex, business-critical systems across automotive, aerospace and defense, telecommunications, and financial services. Its scale and industry focus place it among the larger Bulgarian providers on this list.

Key Services:

• Custom software engineering
• AI and machine learning
• Data engineering and analytics
• Cloud and systems integration

Why Choose Wiser Technology: Wiser is a strong option for large, technically demanding projects in regulated or mission-critical environments. Its experience across aerospace, automotive, telecom and financial services is backed by standards such as ISO 27001, TISAX and NATO AQAP, which adds confidence for buyers with strict security and delivery requirements.

9. Dreamix

Founded: 2006

Size: 250+ specialists

Clutch rating: 5/5 stars (36 reviews)

Overview: Dreamix is a Sofia-headquartered custom software company working with enterprise clients across aviation, healthcare, fintech, and transportation. Since joining Synechron in 2024, it has kept its Bulgaria-based delivery model while gaining access to a larger global organization.

Key Services:

• Custom software development
• AI and machine learning
• Product modernization
• Cloud and platform engineering

Why Choose Dreamix: Dreamix combines custom software development with AI and machine learning capabilities, backed by domain experience in aviation, healthcare, fintech and transportation. Its International Air Transport Association (IATA) Strategic Partnership adds further credibility in aviation. The company also has experience delivering long-running, business-critical systems for international clients.

10. Proxiad SEE

Founded: 2005

Size: 270+ employees

Clutch rating: 4.8/5 stars (3 reviews)

Overview: Proxiad SEE is a Sofia-headquartered software engineering company working with clients across banking, healthcare, transport, and other regulated industries. Alongside custom development and dedicated teams, it has expanded into applied AI, with a focus on secure AI agents that connect directly to client systems and workflows.

Key Services:

• Custom software development
• Custom AI agents
• AI and machine learning
• Data analysis

Why Choose Proxiad SEE: Proxiad SEE focuses on embedding AI directly into existing business processes and systems. Its custom agents are designed to work within the client’s own environment, using existing data, permissions and applications, with monitoring and support continuing after go-live. The company has also applied AI to content generation, accessibility automation and testing, showing experience across several operational use cases.

Conclusion

A shortlist is only a starting point. The more useful questions are how each company would approach your project, what they would take responsibility for, and what similar work they have already delivered.

For buyers looking for a Bulgaria-based partner that combines custom software, data and applied AI under one delivery team, Accedia is one of the companies worth considering. With experience across AI strategy, engineering and production delivery, we can support both the AI use case and the systems around it. Contact our software development team to discuss your roadmap and see where Accedia could fit.