Company lists · Data refreshed September 2026
Top 25 IT outsourcing service providers based in Bulgaria
RevenueBase identified 77 IT outsourcing service providers headquartered in Bulgaria as of September 2026 and tracks 1,658 professional contacts across them, including 274 with verified work emails. Sofia is the largest hub.
This list covers IT outsourcing service providers 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 14, 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.
The 25 largest IT outsourcing service providers based in Bulgaria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 452 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 141 contacts → | ||||
Partial evidence “Development of custom software solutions, outsourcing, consulting.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 100 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 51 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 45 contacts → | ||||
Indirect evidence “Scale with confidence and easily outperform the competition with our top-tier tech experts.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 38 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 28 contacts → | ||||
Partial evidence “We are a Business to Business (B2B) IT Services provider.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “As part of the Noser Group, Noser Bulgaria provides high-quality nearshoring services for the companies of the Noser Group.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 19 contacts → | ||||
Strong evidence “EuroBG is a software development company that provides a wide range of IT outsourcing services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Partial evidence “Game Of Technologies is your trusted partner for cutting-edge IT solutions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 contacts → | ||||
Partial evidence “R Consulting is an IT company, established in 1993, which operates officially since 2003 under the trademark of R Consulting Ltd.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “BulPros Consulting is a company which provides customized solutions with a focus on IT & BPO consulting, Software development, System integration, Technical and Customer support.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Partial evidence “IT Experts Europe is an organization that distinguishes itself as an extension of your enterprise by providing reliable expertise in the field of information technology.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Strong evidence “PODIX is an IT outsourcing company focused on offshore/nearshore software development services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Partial evidence “At Sorcible we help our international clients again access to the top-notch IT talent in Bulgaria while cutting costs up to fifty percent.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 4 contacts → | ||||
Indirect evidence “VISION EVRISTA LTD.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “sofString is a bold and aspiring company with the sole purpose of delivering high-quality software solutions for businesses of all industry.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “We are excited to announce that DevelopSoft has been acquired by CodeValue, a renowned software solutions company based in Israel!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Partial evidence “Desi Information Technologies Ltd provides IT support for global companies that are operating throughout Turkey.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Strong evidence “GBS is a Bulgarian IT company focused on outsourcing of : • System integration • Consulting and design of IT solutions • Support of application and system software (system…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Partial evidence “ACS Bulgaria is an outsourcing company with strong competence focused on BPO (Business Process Outsourcing), ITO (Information Technology Outsourcing) and recently developed KPO…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: IT outsourcing service providers. 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 IT outsourcing service providers.
- Partial evidence
- Its own public description names part of IT outsourcing service providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT outsourcing service providers. 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 77 IT outsourcing service providers based in Bulgaria
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IT outsourcing service providers based in Bulgaria at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Bulgaria, so it is reported there. Company counts and contact totals on this page are exact for Bulgaria, over 77 companies.
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 outsourcing service providers, 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 “IT outsourcing service providers”. 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 IT outsourcing service providers), 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 IT outsourcing service providers, 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, 274 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 14, 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 outsourcing service providers by metro
- IT outsourcing service providers in Sofia43
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 IT outsourcing service providers, 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 IT outsourcing service providers are there based in Bulgaria?
RevenueBase identified 77 IT outsourcing service providers 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 IT outsourcing service providers?
Sofia leads with 43 headquartered companies, followed by Sofia City (9) and Plovdiv (6).
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 274 verified decision-maker contacts tracked across these 77 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 14, 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.
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