Company lists · Data verified August 2026

Top 10 Business process outsourcing firms based in Bulgaria

Name: Business process outsourcing firms based in Bulgaria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 32 companies tracked

There are 32 business process outsourcing firms headquartered in Bulgaria (RevenueBase, August 2026). RevenueBase tracks 1,154 professional contacts across them, including 105 with verified work emails and 41 with mobile numbers. Sofia is the largest hub.

This list covers business process outsourcing firms 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.

32Companies

1,154Contacts tracked

105Verified emails

41Mobile numbers

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The 10 largest business process outsourcing firms based in Bulgaria

Ranked by team size

Top 10 of 32 business process outsourcing firms 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	Sixty K LTD 60k	Plovdiv	1,001-5,000	396	2
2	Publix LTD	Sofia	51-200	222	1
3	SB Accounting & Consulting	Sofia	51-200	60	17
4	GMS Bulgaria	Sofia	51-200	59	23
5	Telus International Bulgaria	Sofia City	1,001-5,000	51	28
6	CXG Business Process Outsourcing	Sofia	51-200	51	26
7	Global Services Bulgaria JSC	Sofia	51-200	21	2
8	Tomi REN	Sofia	11-50	7	2
9	Simple Finance LTD	Sofia	11-50	5	3
10	ACS Bulgaria	Sofia	11-50	1	1

Showing 10 of 32 business process outsourcing firms based in Bulgaria

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Business process outsourcing firms based in Bulgaria at a glance

As of Aug 28, 2026

11-50Median size (employees)

SofiaLargest hub · 21 HQs

41Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Business process outsourcing firms by metro

Metro	Companies
Business process outsourcing firms in Sofia	21
Business process outsourcing firms in Sofia City	2
Business process outsourcing firms in Burgas	2
Business process outsourcing firms in Varna	1
Business process outsourcing firms in Plovdiv	1
Business process outsourcing firms in Petrich	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 “business process outsourcing firms”, 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; 0 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 business process outsourcing firms are there based in Bulgaria?

There are 32 business process outsourcing firms headquartered in Bulgaria as of August 2026 (RevenueBase).

What is the largest company on this list?

Sixty K LTD 60k, headquartered in Plovdiv, tops this list with the largest team on record.

Which city has the most business process outsourcing firms?

Sofia leads with 21 headquartered companies, followed by Sofia City (2) and Burgas (2).

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 105 verified decision-maker contacts tracked across these 32 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.