Company lists · Data refreshed November 2026

Top 17 Engineering services companies based in Sofia, Bulgaria

RevenueBase identified 100 company matches for engineering services companies associated with Sofia, Bulgaria as of November 2026 and tracks 747 professional contacts across them, including 227 with verified work emails. Across Bulgaria, Sofia is the largest hub for this category.

This list covers company matches for engineering services companies associated with Sofia, 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
100Companies
747Contacts tracked
227Verified emails
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The 17 largest engineering services companies based in Sofia, Bulgaria

Ranked by team size
Top 17 of 100 company matches for engineering services companies based in Sofia, 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, 202651-200119 contacts →

Exact match

“IPA - Architecture and more provides architectural, design, engineering, urban planning and sustainability consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“GCR is one of the leading Bulgarian providers of engineering and scientific and technical consulting services to the energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Consulting, Design and Commissioning in the Field of Electrical Power Engineering PSS Bulgaria Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Siltek Engineering, as part of the Bulgarian holding structure, has been developing successfully in the field of building electciral engineering for more than 20 years.”

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

Exact match

“BUSINESS SPECTOR Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Civil and Structural Engineering Consultants.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-105 contacts →

Exact match

“DETAIL + is a consultancy and construction company offering services from concept to commissioning of your project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Fabex Bulgaria Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-503 contacts →

Exact match

“IPS Bulgaria is a multidisciplinary engineering company, specialized in Strategic Consultancy and Project Management of Industrial and Commercial developments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“WE ARE OFFERING THE FOLLOWING SERVICES: • Concept, tender and detailed design of both infrastructure (bridges, retaining walls etc.) and residentials and office buildings • Proof…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Fueled by our commitment to excellence, we go the extra mile to make sure clients are completely satisfied with our work and construction management expertise.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“NLV Engineering offers a wide range of services in the field of construction and investment projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Welcome to Stracc Design, where innovation meets expertise in solving complex challenges across the engineering landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Infra City Consult LTD is a company in the field of infrastructure and transport consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSofia, BulgariaHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Проектиране, консултиране и контрол върху изпълнението на строежи.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSofia, BulgariaHQ recorded Nov 6, 202611-502 contacts →

Exact match

“AVV is a company specialized in construction (AVV Engineering LTD) and structural project design (AVV Constructions LTD).”

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

Showing 17 of 100 engineering services companies based in Sofia, Bulgaria

See the full list, filter by size, metro and specialty, and access 227 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engineering services companies based in Sofia, Bulgaria at a glance

As of Nov 6, 2026
30.4%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
42
51-200
8

Email recency for this list is measured across the whole Bulgaria list rather than for Sofia, so it is reported there. Company counts and contact totals on this page are exact for Sofia, over 100 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 Sofia, Bulgaria whose business descriptions match “engineering services companies” 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 227 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.

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 “engineering services companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engineering services companies are there based in Sofia, Bulgaria?

RevenueBase identified 100 company matches for engineering services companies associated with Sofia, 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?

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

Which city in Bulgaria has the most engineering services companies?

Sofia leads Bulgaria with 100 company records, followed by Plovdiv (16) and Varna (9).

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 227 professional contacts with verified work emails tracked across these 100 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.