Company lists · Data refreshed September 2026

Top 25 Outsourcing companies based in Bulgaria

Name: Outsourcing companies based in Bulgaria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 130 companies tracked

RevenueBase identified 130 outsourcing companies headquartered in Bulgaria as of September 2026 and tracks 2,757 professional contacts across them, including 386 with verified work emails and 74 with mobile numbers. Sofia is the largest hub.

This list covers outsourcing companies 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 5, 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 5, 2026 86% judged on-target in blind review

130Companies

2,757Contacts tracked

386Verified emails

74Mobile numbers

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The 25 largest outsourcing companies based in Bulgaria

Ranked by team size

Top 25 of 130 outsourcing companies based in Bulgaria, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to outsourcing companies: 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	Eastvantage	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	1,001-5,000	452 contacts →
	Strong evidence “Eastvantage is a global managed services and outsourcing partner helping businesses grow with confidence through reliable, scalable, and technology-enabled delivery.” Source: RevenueBase Database · checked Sep 5, 2026
2	Sixty K LTD 60k	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	1,001-5,000	398 contacts →
	Strong evidence “ResultsCX is an award-winning BPO and Multi-Lingual Contact Centre Outsourcing company in Bulgaria.” Source: RevenueBase Database · checked Sep 5, 2026
3	Publix LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	222 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
4	BASE	Strong evidence	Plovdiv, BulgariaHQ checked Sep 5, 2026	n/a	141 contacts →
	Strong evidence “Development of custom software solutions, outsourcing, consulting.” Source: RevenueBase Database · checked Sep 5, 2026
5	Matrix Eastern Europe	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	1,001-5,000	128 contacts →
	Indirect evidence “Matrix Global Services - Eastern Europe is the offshore professional services division of Matrix (Israel’s leading Technology Company with more than employees).” Source: RevenueBase Database · checked Sep 5, 2026
6	Energize Global Services Bulgaria	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	100 contacts →
	Strong evidence “Energize Global Services [EGS] is founded with a vision of adding value and increasing revenues for clients through cost-effective software development and IT outsourcing services.” Source: RevenueBase Database · checked Sep 5, 2026
7	GMS Bulgaria	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	59 contacts →
	Strong evidence “GMS Bulgaria is a young progressive company that provides outsourcing services to clients worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
8	SB Accounting & Consulting	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	59 contacts →
	Strong evidence “We are your Trusted Business Outsourcing Partner in Bulgaria!” Source: RevenueBase Database · checked Sep 5, 2026
9	Mercatus Outsourcing	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	51 contacts →
	Strong evidence “Mercatus is an international BPO and ITO service provider delivering tailored outsourcing solutions that help businesses streamline operations, accelerate growth, and achieve…” Source: RevenueBase Database · checked Sep 5, 2026
10	CXG Business Process Outsourcing	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	50 contacts →
	Indirect evidence “CXG is a fast-growing EU-based BPO provider.” Source: RevenueBase Database · checked Sep 5, 2026
11	Telus International Bulgaria	Strong evidence	Sofia City, BulgariaHQ checked Sep 5, 2026	1,001-5,000	49 contacts →
	Strong evidence “TELUS International Bulgaria is a leading provider in the field of BPO (Business Process Outsourcing).” Source: RevenueBase Database · checked Sep 5, 2026
12	Expert Allies	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	45 contacts →
	Indirect evidence “Scale with confidence and easily outperform the competition with our top-tier tech experts.” Source: RevenueBase Database · checked Sep 5, 2026
13	TSD Services	Strong evidence	Troyan, BulgariaHQ checked Sep 5, 2026	51-200	38 contacts →
	Strong evidence “TSD Services, part of TSD Group, specializes in providing world-class offshore and nearshore software development outsourcing services offered under the well-established…” Source: RevenueBase Database · checked Sep 5, 2026
14	BGS	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	11-50	28 contacts →
	Indirect evidence “We are a Business to Business (B2B) IT Services provider.” Source: RevenueBase Database · checked Sep 5, 2026
15	Marketstar Bulgaria	Indirect evidence	Lozenets, BulgariaHQ checked Sep 5, 2026	1,001-5,000	28 contacts →
	Indirect evidence “We are celebrating 36 years of creating growth for businesses around the globe!” Source: RevenueBase Database · checked Sep 5, 2026
16	Global Services Bulgaria JSC	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	21 contacts →
	Indirect evidence “The company was founded in February 2006 under the name TBI Contact Center EAD as a subsidiary of the financial group TBI Bulgaria.” Source: RevenueBase Database · checked Sep 5, 2026
17	Eurobgsoftware	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	11-50	19 contacts →
	Strong evidence “EuroBG is a software development company that provides a wide range of IT outsourcing services.” Source: RevenueBase Database · checked Sep 5, 2026
18	Markam Solutions	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	15 contacts →
	Strong evidence “At MarKam Solutions, we specialize in providing comprehensive multilingual outsourcing solutions tailored to meet the diverse needs of businesses across various industries…” Source: RevenueBase Database · checked Sep 5, 2026
19	contento.tech	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	11-50	14 contacts →
	Indirect evidence “At Contento.Tech, we design and operate fully integrated remote teams across critical business functions - from finance and compliance to back-office operations and digital…” Source: RevenueBase Database · checked Sep 5, 2026
20	Cleverix	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	11-50	14 contacts →
	Indirect evidence “Cleverix is a software development and digital services company founded by a group of highly experienced IT experts.” Source: RevenueBase Database · checked Sep 5, 2026
21	An Allnew Tech LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	14 contacts →
	Indirect evidence “About US AN Allnew Tech Ltd is part of international company providing Out-Source Tech Service to customers worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
22	Outsource.Bg Services LTD	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	11-50	10 contacts →
	Strong evidence “We’re a young team brought together by the outsourcing industry in Bulgaria since it’s beginning in the early What we aim for with this website is to provide a portal to the…” Source: RevenueBase Database · checked Sep 5, 2026
23	IT RUN	Indirect evidence	Varna, BulgariaHQ checked Sep 5, 2026	51-200	10 contacts →
	Indirect evidence “At IT Run, we understand how hard it is to find quality professionals to develop software.” Source: RevenueBase Database · checked Sep 5, 2026
24	Pharoscode	Strong evidence	Sofia, BulgariaHQ checked Sep 5, 2026	51-200	7 contacts →
	Strong evidence “Pharoscode is a future-oriented software development outsourcing company providing the best services within your budget and time.” Source: RevenueBase Database · checked Sep 5, 2026
25	Tomi REN	Strong evidence	Sofia-city, BulgariaHQ checked Sep 5, 2026	11-50	7 contacts →
	Strong evidence “Tomi Ren is an outsourcing company working with businesses from all around Europe, UK and United States to deliver services in areas like customer support, project management…” Source: RevenueBase Database · checked Sep 5, 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: outsourcing companies. 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 outsourcing companies.
Partial evidence: Its own public description names part of outsourcing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name outsourcing companies. 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 130 outsourcing companies based in Bulgaria

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Outsourcing companies based in Bulgaria at a glance

As of Sep 5, 2026

14.0%Verified-email coverage

2.7%Mobile-number coverage

21.2Average contacts per company

11-50Median size (employees)

57.7%Largest-city concentration · Sofia

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3570–30

2031–60

161–90

090–180

8180+

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 outsourcing companies, 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 “outsourcing companies”. 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 outsourcing companies), 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 outsourcing companies, 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, 386 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 5, 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.

Outsourcing companies by metro

Outsourcing companies in Sofia75

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 outsourcing companies, 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 outsourcing companies are there based in Bulgaria?

RevenueBase identified 130 outsourcing companies 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?

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

Which city has the most outsourcing companies?

Sofia leads with 75 headquartered companies, followed by Sofia City (18) and Plovdiv (7).

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 386 verified decision-maker contacts tracked across these 130 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 5, 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.