Company lists · Data verified August 2026

Top 25 AI and machine learning companies based in Bulgaria

Name: AI and machine learning companies based in Bulgaria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 75 companies tracked

There are 75 AI and machine learning companies headquartered in Bulgaria (RevenueBase, August 2026). RevenueBase tracks 431 professional contacts across them, including 149 with verified work emails and 15 with mobile numbers. Sofia is the largest hub.

This list covers AI and machine learning companies headquartered in Bulgaria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

75Companies

431Contacts tracked

149Verified emails

15Mobile numbers

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The 25 largest AI and machine learning companies based in Bulgaria

Ranked by team size

Top 25 of 75 AI and machine learning companies based in Bulgaria, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	OSI	Sofia	51-200	46	38
2	Aisolutions LTD	Sofia	51-200	30	17
3	encorp.ai	Sofia City	11-50	30	15
4	Cosmos Thrace	Sofia	11-50	21	15
5	Identrics	Sofia	11-50	16	10
6	Ablera	Sofia	11-50	15	10
7	CAPTO	Sofia	11-50	12	2
8	Vmobile AD	Sofia	11-50	10	5
9	Fenny Solutions	n/a	11-50	10	2
10	3p Consulting	Dobritch	1-10	8	2
11	Clearware	Sofia	11-50	8	1
12	Axion Edge	Varna	11-50	7	3
13	MVP Computers LTD	Dobrich	11-50	7	2
14	Marchfirst	Sofia City	11-50	6	2
15	AI Assist BG	n/a	11-50	5	3
16	Autegry	Sofia	1-10	5	3
17	st6.io	Sofia	11-50	5	2
18	Empower Solutions	Sofia	11-50	5	1
19	Clouddo	Varna	1-10	4	2
20	Softaware	Sofia	1-10	4	2
21	Easy PIE Digital	Sofia	1-10	3	3
22	Audhild	Sofia	1-10	3	1
23	Advanced Data Tech	Sofia City	11-50	2	2
24	Tessier	n/a	1-10	2	2
25	Devdom	Varna	1-10	2	1

Showing 25 of 75 AI and machine learning companies based in Bulgaria

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AI and machine learning companies based in Bulgaria at a glance

As of Aug 28, 2026

1-10Median size (employees)

SofiaLargest hub · 46 HQs

15Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

AI and machine learning companies by metro

Metro	Companies
AI and machine learning companies in Sofia	46
AI and machine learning companies in Sofia City	5
AI and machine learning companies in Varna	4
AI and machine learning companies in Dobrich	2
AI and machine learning companies in Ruse	2
AI and machine learning companies in Burgas	2
AI and machine learning companies in Stara Zagora	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “AI and machine learning companies”, with match quality audited by blind human judging, and headquartered in Bulgaria.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many AI and machine learning companies are there based in Bulgaria?

There are 75 AI and machine learning companies headquartered in Bulgaria as of August 2026 (RevenueBase).

What is the largest company on this list?

OSI, headquartered in Sofia, tops this list with the largest team on record.

Which city has the most AI and machine learning companies?

Sofia leads with 46 headquartered companies, followed by Sofia City (5) 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 149 verified decision-maker contacts tracked across these 75 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.