Company lists · Data refreshed September 2026
Top 25 IT consulting firms based in Bulgaria
RevenueBase identified 255 IT consulting firms headquartered in Bulgaria as of September 2026 and tracks 5,426 professional contacts across them, including 1,922 with verified work emails and 116 with mobile numbers. Sofia is the largest hub.
This list covers IT consulting firms headquartered in Bulgaria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest IT consulting firms based in Bulgaria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 453 | ||||
“Combining unmatched experience and specialized skills across more than 40 industries, we offer Strategy and Consulting, Technology and Operations Services and Accenture Song - all…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 442 | ||||
“InterConsult Bulgaria Ltd (ICB), a Kongsberg company is a leading software and consulting provider with more than 29 years of market presence.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 334 | ||||
“Musala Soft is now Avenga.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 216 | ||||
“The Lirex.com companies are leaders in the information technology field.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 189 | ||||
“Telelink enables people and organizations to adopt technology and realize their full potential in the digital world.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 177 | ||||
“INDEAVR is a technology services company focused on the Digital, Data, Cloud and Advanced Software Engineering expertise.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 141 | ||||
“Development of custom software solutions, outsourcing, consulting.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 128 | ||||
“Kontrax Company was established in 1992 as an international holding of companies in six East European countries and headquarters in Budapest, Hungary.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 125 | ||||
“BRIGHT (2006–2026) was a leader in IT consulting, helping companies accelerate their digitalization and automation initiatives by delivering solutions designed to meet their…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 122 | ||||
“The mirror world we lived in collapsed before our very eyes and shattered into thousands of pieces.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 111 | ||||
“Sopra Steria, a major Tech player in Europe recognised for its consulting, digital services, and software development, helps its clients drive their digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 100 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 89 | ||||
“IBS Bulgaria is an IT Consulting, Systems Integrator and Software Development company founded in Bulgaria.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 88 | ||||
“P3 Bulgaria develops high-quality engineering solutions for companies in different industry segments.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 85 | ||||
“Paraflow Communications is a leading Bulgarian IT company with over 30 years of experience.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 | ||||
“COMSOFT Ltd is committed to integrity, loyalty and service quality as key issues in its business.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 62 | ||||
“Crossroad Ltd.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 61 | ||||
“Balkan Services is an IT consulting company that helps businesses implement leading solutions like NetSuite, Qlik, Lucanet, and Softone to work smarter, faster, and more…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 58 | ||||
“Protiviti is a leading global consulting firm delivering deep expertise, objective insights, and tailored solutions to help businesses confidently navigate the future.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | DO IT Wise An Inetum Group CompanyPartial evidence | 53 | |||
“Do IT Wise is one of the biggest ServiceNow Elite certified partners in South-East Europe.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 49 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 48 | ||||
“Rila Solutions is a leading IT company with proven international experience and a Bulgarian market leader in the field of professional IT consulting and development services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 | ||||
“DENSHI is a young IT and digital service company offering custom software development and digital transformation services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 42 | ||||
“BL Consulting Ltd is a high-tech consulting company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 40 | ||||
“ORAK Engineering is a software consulting company established in 1996 in Plovdiv.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 255 IT consulting firms based in Bulgaria
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IT consulting firms based in Bulgaria at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Bulgaria whose own description of what they do matches “IT consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among IT consulting firms, and records with no verified work email. Companies headquartered outside Bulgaria are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,922 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
IT consulting firms by metro
- IT consulting firms in Sofia147
Frequently asked
How many IT consulting firms are there based in Bulgaria?
RevenueBase identified 255 IT consulting firms headquartered in Bulgaria as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Accenture Bulgaria, headquartered in Bulgaria, tops this list with the largest team on record.
Which city has the most IT consulting firms?
Sofia leads with 147 headquartered companies, followed by Plovdiv (19) and Sofia City (16).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,922 verified decision-maker contacts tracked across these 255 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.