Company lists · Data refreshed September 2026

Top 25 Software integrators based in Bulgaria

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 96 companies tracked

RevenueBase identified 96 software integrators headquartered in Bulgaria as of September 2026 and tracks 1,113 professional contacts across them, including 313 with verified work emails. Sofia is the largest hub.

This list covers software integrators 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 29, 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 29, 2026 86% judged on-target in blind review

96Companies

1,113Contacts tracked

313Verified emails

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

The 25 largest software integrators based in Bulgaria

Ranked by team size

Top 25 of 96 software integrators based in Bulgaria, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software integrators: 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	Kontrax	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	201-500	126 contacts →
	Indirect evidence “Kontrax Company was established in 1992 as an international holding of companies in six East European countries and headquarters in Budapest, Hungary.” Source: RevenueBase Database · checked Sep 29, 2026
2	Cnsys PLC	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	51-200	121 contacts →
	Partial evidence “Founded in 1998 in Sofia as an start-up expert company, nowadays CNSYS PLC is one of Bulgaria’s top five system integrators in terms of revenue, IT experience and successful…” Source: RevenueBase Database · checked Sep 29, 2026
3	Comsoft	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 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 29, 2026
4	Prime Holding	Partial evidence	Plovdiv, BulgariaHQ checked Sep 29, 2026	501-1,000	44 contacts →
	Partial evidence “Wiser Technology (BUL:BNR) designs, builds and operates advanced mission-critical software solutions for the world's leading organizations.” Source: RevenueBase Database · checked Sep 29, 2026
5	Enterprise Communications Group	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	51-200	36 contacts →
	Partial evidence “Enterprise Communications Group Ltd.(founded in 2006 as Siemens Enterprise Communications Ltd.) is a leading integrator of the latest information and communication technologies.” Source: RevenueBase Database · checked Sep 29, 2026
6	Jboxers	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	35 contacts →
	Partial 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 29, 2026
7	Stone Computers AD	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	51-200	34 contacts →
	Partial evidence “Welcome to Stone Computers AD, leading IT system integrator and cloud service provider.” Source: RevenueBase Database · checked Sep 29, 2026
8	Infinno	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	27 contacts →
	Partial evidence “Software and hardware development services.” Source: RevenueBase Database · checked Sep 29, 2026
9	IFD Engineering Joint Venture	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	17 contacts →
	Indirect evidence “IFD Engineering LTD – projects for warehouse automation, trade, production and services under one roof – effective and powerful IT solutions that work for you.” Source: RevenueBase Database · checked Sep 29, 2026
10	Diadraw LTD	Indirect evidence	Plovdiv, BulgariaHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “At Diadraw, we help expert technological teams overcome urgent project deadlines while enhancing quality and efficiency.” Source: RevenueBase Database · checked Sep 29, 2026
11	Ssarm LTD	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	14 contacts →
	Partial evidence “Meet SSARM - the fast growing IT, network, and security solutions system integrator focused on turnkey project delivery, professional and managed services.” Source: RevenueBase Database · checked Sep 29, 2026
12	Algorithmity LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “Algorithmity embeds experienced, product-minded engineers into your team and takes ownership of the systems they work on.” Source: RevenueBase Database · checked Sep 29, 2026
13	Innovasys LTD	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	12 contacts →
	Partial 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 29, 2026
14	Quantum Omega Group	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
15	wiara.com	Partial evidence	Remote, BulgariaHQ checked Sep 29, 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 29, 2026
16	Proexes LTD	Partial evidence	BulgariaHQ checked Sep 29, 2026	11-50	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 29, 2026
17	Risk Electronics LTD	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “System integrator with partnerships with Lenovo, Huawei, Intel, Supermicro, Philips, Samsung, LG.” Source: RevenueBase Database · checked Sep 29, 2026
18	Mach5 Technology	Indirect evidence	Lozenets, BulgariaHQ checked Sep 29, 2026	11-50	8 contacts →
	Indirect evidence “Mach5 Technology is a senior-only technical consultancy that provides self-sufficient delivery teams with a proven track record as a unit.” Source: RevenueBase Database · checked Sep 29, 2026
19	Speed Software And Network Solutions	Partial evidence	Plovdiv, BulgariaHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “Speed was established in Vendor of innovative and effective software and network business solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	2 Plus Bulgaria AD	Partial evidence	Burgas, BulgariaHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “2 PLUS BULGARIA is a SYSTEM INTEGRATOR providing modern high-tech solutions.” Source: RevenueBase Database · checked Sep 29, 2026
21	Smartsys LTD	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	7 contacts →
	Indirect evidence “OUR VISION Continuously improving the operational performance and safety of the industry.” Source: RevenueBase Database · checked Sep 29, 2026
22	Connecto	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial 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 29, 2026
23	Enterprise SDS	Partial evidence	Varna, BulgariaHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “Being an Eastern European IT provider and software developer since 2009, we have experience in creating complex integrated systems.” Source: RevenueBase Database · checked Sep 29, 2026
24	IT Works	Partial evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “As a trusted system integrator, IT Works specializes in delivering comprehensive IT solutions that empower organizations to thrive in the digital era.” Source: RevenueBase Database · checked Sep 29, 2026
25	Pbcs Group	Indirect evidence	Sofia, BulgariaHQ checked Sep 29, 2026	11-50	5 contacts →
	Indirect evidence “At PBCS Group, we believe that innovation has the power to unlock new opportunities for people and our planet.” Source: RevenueBase Database · checked Sep 29, 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: software integrators. 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 software integrators.
Partial evidence: Its own public description names part of software integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software integrators. 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 96 software integrators based in Bulgaria

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 313 reachable decision-makers.

Free signup · no credit card

View the full list →

Software integrators based in Bulgaria at a glance

As of Sep 29, 2026

28.1%Verified-email coverage

11.6Average contacts per company

11-50Median size (employees)

59.4%Largest-city concentration · Sofia

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 96 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 software integrators, 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 “software integrators”. 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 software integrators), 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 software integrators, 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, 313 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 29, 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.

Software integrators by metro

Software integrators in Sofia57

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 software integrators, 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 software integrators are there based in Bulgaria?

RevenueBase identified 96 software integrators 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?

Kontrax, headquartered in Bulgaria, tops this list with the largest team on record.

Which city has the most software integrators?

Sofia leads with 57 headquartered companies, followed by Plovdiv (11) and Varna (5).

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 313 verified decision-maker contacts tracked across these 96 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 96 software integrators based in Bulgaria. Start with a free account, no credit card.

Download this list →

Related lists

Software integrators 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.