Company lists · Data refreshed September 2026

Top 25 Global IT consulting firms based in Bulgaria

Name: Global IT consulting firms based in Bulgaria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 119 companies tracked

RevenueBase identified 119 global IT consulting firms headquartered in Bulgaria as of September 2026 and tracks 2,887 professional contacts across them, including 1,047 with verified work emails and 23 with mobile numbers. Sofia is the largest hub.

This list covers global 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

119Companies

2,887Contacts tracked

1,047Verified emails

23Mobile numbers

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The 25 largest global IT consulting firms based in Bulgaria

Ranked by team size

Top 25 of 119 global IT consulting firms based in Bulgaria, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to global IT consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Accenture Bulgaria	Partial evidence	Sofia, BulgariaHQ checked Sep 30, 2026	1,001-5,000	448 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 30, 2026
2	Musala Soft	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	1,001-5,000	332 contacts →
	Indirect evidence “Musala Soft is now Avenga.” Source: RevenueBase Database · checked Sep 30, 2026
3	Lirex COM	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	201-500	216 contacts →
	Indirect evidence “The Lirex.com companies are leaders in the information technology field.” Source: RevenueBase Database · checked Sep 30, 2026
4	Telelink	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	501-1,000	190 contacts →
	Indirect evidence “Telelink enables people and organizations to adopt technology and realize their full potential in the digital world.” Source: RevenueBase Database · checked Sep 30, 2026
5	Accedia	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	201-500	184 contacts →
	Strong evidence “Accedia is a premier European IT services company, specializing in technology consulting and custom software development.” Source: RevenueBase Database · checked Sep 30, 2026
6	BASE	Partial evidence	Plovdiv, BulgariaHQ checked Sep 30, 2026	n/a	141 contacts →
	Partial evidence “Development of custom software solutions, outsourcing, consulting.” Source: RevenueBase Database · checked Sep 30, 2026
7	Bright	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	126 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 30, 2026
8	Stemo LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	201-500	100 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
9	Melon IS NOW KIN Carta	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	1,001-5,000	83 contacts →
	Indirect evidence “Melon is now Kin + Carta.” Source: RevenueBase Database · checked Sep 30, 2026
10	Balkan Services	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	11-50	61 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 30, 2026
11	Protiviti Bulgaria	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	n/a	58 contacts →
	Strong evidence “Protiviti is a leading global consulting firm delivering deep expertise, objective insights, and tailored solutions to help businesses confidently navigate the future.” Source: RevenueBase Database · checked Sep 30, 2026
12	Rila Solutions	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	49 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 30, 2026
13	DSS	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	45 contacts →
	Strong evidence “DSS is a fast growing IT company, which provides professional consulting and software development services.” Source: RevenueBase Database · checked Sep 30, 2026
14	BL Consulting LTD	Partial evidence	Sofia, BulgariaHQ checked Sep 30, 2026	n/a	43 contacts →
	Partial evidence “BL Consulting Ltd is a high-tech consulting company.” Source: RevenueBase Database · checked Sep 30, 2026
15	Concord EU	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	201-500	37 contacts →
	Indirect evidence “Concord helps big companies untangle their business and technology messes.” Source: RevenueBase Database · checked Sep 30, 2026
16	SG Newtech	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	36 contacts →
	Indirect evidence “SG NewTech is an innovative and versatile technology solutions company that partners financial institutions to implement, deploy, and support the technology platform of the future.” Source: RevenueBase Database · checked Sep 30, 2026
17	Think Smart	Partial evidence	Mladost, BulgariaHQ checked Sep 30, 2026	11-50	25 contacts →
	Partial evidence “Think Smart is a fast-growing, trend-setting IT company completely customer-oriented founded in 2019.” Source: RevenueBase Database · checked Sep 30, 2026
18	Telebidpro	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	11-50	25 contacts →
	Indirect evidence “TelebidPro is an EU-based software product company focused on the development of world-class innovative software solutions.” Source: RevenueBase Database · checked Sep 30, 2026
19	Sirma Insurtech	Strong evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	21 contacts →
	Strong evidence “Еstablished in 2002 as IT consulting firm TBI Info, nowdays Sirma InsurTech is an IT consulting firm – a recognized expert in the development and implementation of business…” Source: RevenueBase Database · checked Sep 30, 2026
20	Quantum Omega	Partial evidence	Sofia, BulgariaHQ checked Sep 30, 2026	51-200	18 contacts →
	Partial evidence “Quantum Omega Group – The Future Today; is an international leading Outsourcing, Development, and Consulting Solutions provider with a proven track record of successful Dynamics…” Source: RevenueBase Database · checked Sep 30, 2026
21	Gluckit LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “We at believe we revolutionize business by providing solutions and improving work performance, reducing operating expenses and ensuring a quick reaction to the clients' changing…” Source: RevenueBase Database · checked Sep 30, 2026
22	Innovasys LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “Innovasys Ltd is a software company established in 2005 by highly qualified specialists who made their occupation a lifestyle.” Source: RevenueBase Database · checked Sep 30, 2026
23	Data Solutions LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 30, 2026	1-10	10 contacts →
	Indirect evidence “Established in 2002, Data Solutions Ltd.” Source: RevenueBase Database · checked Sep 30, 2026
24	Proexes LTD	Indirect evidence	BulgariaHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “Proexes is a company for software services specialized in expert advice, outsourcing of software developments and complex solutions for big enterprises and organizations of both…” Source: RevenueBase Database · checked Sep 30, 2026
25	L E A D V I S I O N	Indirect evidence	Lozenets, BulgariaHQ checked Sep 30, 2026	11-50	9 contacts →
	Indirect evidence “Lead Vision Ltd.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: global IT consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names global IT consulting firms.
Partial evidence: Its own public description names part of global IT consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name global IT consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 119 global IT consulting firms based in Bulgaria

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Global IT consulting firms based in Bulgaria at a glance

As of Sep 30, 2026

36.3%Verified-email coverage

0.8%Mobile-number coverage

24.3Average contacts per company

11-50Median size (employees)

73.1%Largest-city concentration · Sofia

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 32.0d

3160–30

71231–60

2661–90

090–180

9180+

Company record updated

Median 95.0d

00–30

59531–60

73961–90

1,44890–180

127180+

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 global IT consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Bulgaria whose own description of what they do matches “global IT consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names global IT consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among global 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 its RevenueBase Smart Search 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, 1,047 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 30, 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.

Global IT consulting firms by metro

Global IT consulting firms in Sofia87

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names global IT consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many global IT consulting firms are there based in Bulgaria?

RevenueBase identified 119 global 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 Sofia, tops this list with the largest team on record.

Which city has the most global IT consulting firms?

Sofia leads with 87 headquartered companies, followed by Plovdiv (8) and Varna (4).

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 1,047 verified decision-maker contacts tracked across these 119 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 30, 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 Smart Search, 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.