Company lists · Data refreshed November 2026

Top 23 IT infrastructure consulting services based in Bulgaria

RevenueBase identified 160 company matches for IT infrastructure consulting services associated with Bulgaria as of November 2026 and tracks 2,674 professional contacts across them, including 1,104 with verified work emails. Sofia is the largest hub.

This list covers company matches for IT infrastructure consulting services associated with Bulgaria, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
160Companies
2,674Contacts tracked
1,104Verified emails
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The 23 largest IT infrastructure consulting services based in Bulgaria

Ranked by team size
Top 23 of 160 company matches for IT infrastructure consulting services based in Bulgaria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSofia, BulgariaHQ recorded Nov 6, 2026501-1,000356 contacts →

Exact match

“Telelink Business Services is a technology service provider, offering consistent combinatorial IT solutions that serve various workloads in every infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSofia, BulgariaHQ recorded Nov 6, 2026501-1,000206 contacts →

Exact match

“Telelink enables people and organizations to adopt technology and realize their full potential in the digital world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSofia, BulgariaHQ recorded Nov 6, 2026201-500191 contacts →

Exact match

“Accedia is a premier European IT services company, specializing in technology consulting and custom software development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSofia, BulgariaHQ recorded Nov 6, 2026201-50091 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSofia, BulgariaHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“Founded in Sofia in 2019, Cloud Office is a premier cloud consultancy specializing in five core disciplines: business productivity and digital workspace, infrastructure…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSofia, BulgariaHQ recorded Nov 6, 2026n/a59 contacts →

Exact match

“Protiviti is a leading global consulting firm delivering deep expertise, objective insights, and tailored solutions to help businesses confidently navigate the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSofia, BulgariaHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“eFellows is an engineering firm with a broad range of advanced, architectural and vendor agnostic expertise within both cloud-native and legacy/on-prem environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSofia, BulgariaHQ recorded Nov 6, 2026n/a46 contacts →

Exact match

“BL Consulting Ltd is a high-tech consulting company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBulgariaHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Do IT Wise is one of the biggest ServiceNow Elite certified partners in South-East Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“We are a Business to Business (B2B) IT Services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMladost, BulgariaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Think Smart is a fast-growing, trend-setting IT company completely customer-oriented founded in 2019.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSofia, BulgariaHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Looming Tech is a software development and technology consulting company, now part of the Eastvantage group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“We help manufacturing companies navigate their cloud journey without disruption." At Solitex, we work with manufacturing companies (50-150 employees) to modernize their IT…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVarna, BulgariaHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“Custom works”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Established in 2002, Data Solutions Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“IT Services Bulgaria specializes in providing reliable and innovative business-oriented IT solutions and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLozenets, BulgariaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Lead Vision Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-109 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“We at believe we revolutionize business by providing solutions and improving work performance, reducing operating expenses and ensuring a quick reaction to the clients' changing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Innovasys Ltd is a software company established in 2005 by highly qualified specialists who made their occupation a lifestyle.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“At Perspective Unity, we are your strategic partner in navigating the ever-evolving landscape of digital transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Opsters helps businesses build scalable operational systems for a future that keeps moving.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-506 contacts →

Exact match

“We are dedicated to assisting organisations in setting up their engineering processes by providing solutions for highly specialised markets and industries as one of our core…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 23 of 160 IT infrastructure consulting services based in Bulgaria

See the full list, filter by size, metro and specialty, and access 1,104 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT infrastructure consulting services based in Bulgaria at a glance

As of Nov 6, 2026
41.3%Verified-email coverage
16.7Average contacts per company
1-10Median size (employees)
66.2%Largest-city concentration · Sofia
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
90
11-50
47
51-200
12
201-500
7
501-1,000
2
1,001-5,000
1
10001+
1

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 160 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Bulgaria whose business descriptions match “IT infrastructure consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,104 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

IT infrastructure consulting services by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT infrastructure consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT infrastructure consulting services are there based in Bulgaria?

RevenueBase identified 160 company matches for IT infrastructure consulting services associated with Bulgaria as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Telelink Business Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT infrastructure consulting services?

Sofia leads with 106 company records, followed by Plovdiv (8) and Varna (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,104 professional contacts with verified work emails tracked across these 160 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.