Company lists · Data refreshed September 2026

Top 25 Data integration solutions and consulting firms based in Bulgaria

Name: Data integration solutions and consulting firms based in Bulgaria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 94 companies tracked

RevenueBase identified 94 data integration solutions and consulting firms headquartered in Bulgaria as of September 2026 and tracks 1,245 professional contacts across them, including 311 with verified work emails and 15 with mobile numbers. Sofia is the largest hub.

This list covers data integration solutions and consulting 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 24, 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 24, 2026 86% judged on-target in blind review

94Companies

1,245Contacts tracked

311Verified emails

15Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest data integration solutions and consulting firms based in Bulgaria

Ranked by team size

Top 25 of 94 data integration solutions and consulting firms based in Bulgaria, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to data integration solutions and consulting firms: 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	BASE	Strong evidence	Plovdiv, BulgariaHQ checked Sep 24, 2026	n/a	141 contacts →
	Strong evidence “Development of custom software solutions, outsourcing, consulting.” Source: RevenueBase Database · checked Sep 24, 2026
2	Bright	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	51-200	126 contacts →
	Strong evidence “BRIGHT (2006–2026) was a leader in IT consulting, helping companies accelerate their digitalization and automation initiatives by delivering solutions designed to meet their…” Source: RevenueBase Database · checked Sep 24, 2026
3	IBS Bulgaria	Partial evidence	Sofia, BulgariaHQ checked Sep 24, 2026	51-200	89 contacts →
	Partial evidence “IBS Bulgaria is an IT Consulting, Systems Integrator and Software Development company founded in Bulgaria.” Source: RevenueBase Database · checked Sep 24, 2026
4	Comsoft	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	69 contacts →
	Indirect evidence “COMSOFT Ltd is committed to integrity, loyalty and service quality as key issues in its business.” Source: RevenueBase Database · checked Sep 24, 2026
5	Balkan Services	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	61 contacts →
	Strong evidence “Balkan Services is an IT consulting company that helps businesses implement leading solutions like NetSuite, Qlik, Lucanet, and Softone to work smarter, faster, and more…” Source: RevenueBase Database · checked Sep 24, 2026
6	BL Consulting LTD	Partial evidence	Sofia, BulgariaHQ checked Sep 24, 2026	n/a	43 contacts →
	Partial evidence “BL Consulting Ltd is a high-tech consulting company.” Source: RevenueBase Database · checked Sep 24, 2026
7	Concord EU	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	201-500	37 contacts →
	Indirect evidence “Concord helps big companies untangle their business and technology messes.” Source: RevenueBase Database · checked Sep 24, 2026
8	Jboxers	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	35 contacts →
	Strong evidence “jBoxers provides software development and consulting services in the areas of enterprise applications, business intelligence solutions, distributed systems, mobile applications…” Source: RevenueBase Database · checked Sep 24, 2026
9	Latona	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	33 contacts →
	Strong evidence “At Latona, we don’t just provide consulting and advanced data management, we combine strong IT and business expertise to empower companies to unlock the full potential of their…” Source: RevenueBase Database · checked Sep 24, 2026
10	SQA Service	Partial evidence	Plovdiv, BulgariaHQ checked Sep 24, 2026	11-50	29 contacts →
	Partial evidence “From consulting services to software development, testing, and quality assurance, at SQA we believe in the power of collaboration.” Source: RevenueBase Database · checked Sep 24, 2026
11	Ulpia Tech	Partial evidence	Plovdiv, BulgariaHQ checked Sep 24, 2026	11-50	25 contacts →
	Partial evidence “Get the most of your Reltio MDM by engaging a Reltio solutions partner.” Source: RevenueBase Database · checked Sep 24, 2026
12	Cosmos Thrace	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	21 contacts →
	Strong evidence “Cosmos Thrace, A pure play Databricks Silver partner, is Data and AI solutions company helping medium to large enterprises turn fragmented data into a strategic asset.” Source: RevenueBase Database · checked Sep 24, 2026
13	Sirma Insurtech	Partial evidence	Sofia, BulgariaHQ checked Sep 24, 2026	51-200	21 contacts →
	Partial evidence “Еstablished in 2002 as IT consulting firm TBI Info, nowdays Sirma InsurTech is an IT consulting firm – a recognized expert in the development and implementation of business…” Source: RevenueBase Database · checked Sep 24, 2026
14	Amexis	Partial evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	19 contacts →
	Partial evidence “AMEXIS, the Microsoft Country Partner of 2015, provides innovative, high-quality and unique IT solutions to corporate clients and research organizations from Europe, North…” Source: RevenueBase Database · checked Sep 24, 2026
15	Asertiva Solutions	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	18 contacts →
	Strong evidence “Asertiva Solutions is a leading consulting company specializing in Infor digital transformation solutions for industrial enterprises.” Source: RevenueBase Database · checked Sep 24, 2026
16	Innovasys LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	12 contacts →
	Indirect evidence “Innovasys Ltd is a software company established in 2005 by highly qualified specialists who made their occupation a lifestyle.” Source: RevenueBase Database · checked Sep 24, 2026
17	Quantum Omega Group	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
18	wiara.com	Partial evidence	Remote, BulgariaHQ checked Sep 24, 2026	11-50	11 contacts →
	Partial evidence “WIARA is a software company that blends custom development with ready-to-use solutions.” Source: RevenueBase Database · checked Sep 24, 2026
19	L E A D V I S I O N	Indirect evidence	Lozenets, BulgariaHQ checked Sep 24, 2026	11-50	9 contacts →
	Indirect evidence “Lead Vision Ltd.” Source: RevenueBase Database · checked Sep 24, 2026
20	The Bytesmiths	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	1-10	9 contacts →
	Indirect evidence “We are a team of creative principal professionals in the field of information technology, insurance, finance and project management dedicated to guide you, our clients, and help…” Source: RevenueBase Database · checked Sep 24, 2026
21	Perspective Unity	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	8 contacts →
	Indirect evidence “At Perspective Unity, we are your strategic partner in navigating the ever-evolving landscape of digital transformation.” Source: RevenueBase Database · checked Sep 24, 2026
22	Bulpros Consulting	Strong evidence	Sofia, BulgariaHQ checked Sep 24, 2026	1-10	7 contacts →
	Strong 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 24, 2026
23	Clearware	Partial evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	7 contacts →
	Partial evidence “Unlock your business's full potential with advanced AI, rapid prototyping, and full solution design-now accessible and affordable for small to mid-sized businesses and startups…” Source: RevenueBase Database · checked Sep 24, 2026
24	Connecto	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	1-10	6 contacts →
	Indirect evidence “We build bespoke software and integrate the tools around it, so technology does what your business needs, not what a platform assumes it needs.” Source: RevenueBase Database · checked Sep 24, 2026
25	Opsters	Indirect evidence	Sofia, BulgariaHQ checked Sep 24, 2026	11-50	6 contacts →
	Indirect evidence “Opsters is here to futureproof your operations.” Source: RevenueBase Database · checked Sep 24, 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: data integration solutions and consulting 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 data integration solutions and consulting firms.
Partial evidence: Its own public description names part of data integration solutions and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name data integration solutions and consulting 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 25 of 94 data integration solutions and consulting firms based in Bulgaria

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 311 reachable decision-makers.

Free signup · no credit card

View the full list →

Data integration solutions and consulting firms based in Bulgaria at a glance

As of Sep 24, 2026

25.0%Verified-email coverage

1.2%Mobile-number coverage

13.2Average contacts per company

1-10Median size (employees)

64.9%Largest-city concentration · Sofia

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 27.0d

2250–30

7831–60

561–90

090–180

3180+

Company record updated

Median 89.0d

00–30

27231–60

47461–90

45890–180

41180+

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 data integration solutions and consulting 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 “data integration solutions and consulting 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 data integration solutions and consulting 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 data integration solutions and consulting 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, 311 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 24, 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.

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 data integration solutions and consulting 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 data integration solutions and consulting firms are there based in Bulgaria?

RevenueBase identified 94 data integration solutions and consulting 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?

BASE, headquartered in Plovdiv, tops this list with the largest team on record.

Which city has the most data integration solutions and consulting firms?

Sofia leads with 61 headquartered companies, followed by Plovdiv (12) and Sofia City (8).

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 311 verified decision-maker contacts tracked across these 94 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 94 data integration solutions and consulting firms based in Bulgaria. Start with a free account, no credit card.

Download this list →

Related lists

Data integration solutions and consulting firms by geography

Browse the directory

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.