Company lists · Data refreshed September 2026
Top 9 Outsourcing advisory firms based in Bulgaria
RevenueBase identified 49 outsourcing advisory firms headquartered in Bulgaria as of September 2026 and tracks 465 professional contacts across them, including 34 with verified work emails. Sofia is the largest hub.
This list covers outsourcing advisory 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 21, 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 9 largest outsourcing advisory firms based in Bulgaria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 14 contacts → | ||||
Indirect evidence “Toro Group S (TGS) is a leading HR consulting company operating on the Bulgarian market for more than 20 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 10 contacts → | ||||
Indirect evidence “Simbula is your one-stop powerhouse for financial, accounting, human capital, legal and management consulting services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8 contacts → | ||||
Partial evidence “We are a financial advisory firm with focus on- bank debt advisory - investor readiness assessment/preparation - equity and mezzanine capital raising - Selling a business - Buying…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 7 contacts → | ||||
Indirect evidence “Consult Plus is a company that works closely with its partners to provide accounting, tax, financial, legal, consulting and other business related services for its clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 contacts → | ||||
Partial evidence “We are your trusted partner in the pursuit of innovation and development in business process outsourcing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Indirect evidence “We have spent over 10 years partnering with our clients to help them achieve their goals to grow their business and keep their customers happy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 contacts → | ||||
Partial evidence “Alpha Select is an HR consulting services provider specialized in Executive Search, tailor-made Management Selection and Business advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4 contacts → | ||||
Partial evidence “CORPORATE, FINANCIAL, INVESTMENT AND TAX ADVISORY ANC is a boutique consultancy dedicated to provision of full corporate solutions for both - established and start up businesses.” Source: RevenueBase Database · checked Sep 21, 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: outsourcing advisory 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 outsourcing advisory firms.
- Partial evidence
- Its own public description names part of outsourcing advisory firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name outsourcing advisory 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 9 of 49 outsourcing advisory firms based in Bulgaria
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Outsourcing advisory firms based in Bulgaria at a glance
As of Sep 21, 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 49 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 outsourcing advisory 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 “outsourcing advisory 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 outsourcing advisory 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 outsourcing advisory 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, 34 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 21, 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 advisory firms by metro
- Outsourcing advisory firms in Sofia31
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 advisory 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 outsourcing advisory firms are there based in Bulgaria?
RevenueBase identified 49 outsourcing advisory 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?
Matrix Eastern Europe, headquartered in Sofia City, tops this list with the largest team on record.
Which city has the most outsourcing advisory firms?
Sofia leads with 31 headquartered companies, followed by Plovdiv (3) and Sofia City (3).
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 34 verified decision-maker contacts tracked across these 49 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 21, 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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