Company lists · Data refreshed September 2026

Top 17 Civil engineering consultancy firms based in Bulgaria

RevenueBase identified 95 civil engineering consultancy firms headquartered in Bulgaria as of September 2026 and tracks 628 professional contacts across them, including 122 with verified work emails and 5 with mobile numbers. Sofia is the largest hub.

This list covers civil engineering consultancy 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 23, 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 23, 2026 86% judged on-target in blind review
95Companies
628Contacts tracked
122Verified emails
5Mobile numbers
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The 17 largest civil engineering consultancy firms based in Bulgaria

Ranked by team size
Top 17 of 95 civil engineering consultancy firms based in Bulgaria, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering consultancy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSofia, BulgariaHQ checked Sep 23, 202651-200109 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidenceSofia, BulgariaHQ checked Sep 23, 20261,001-5,00048 contacts →

Indirect evidence

“Trace Group is amongst the largest Bulgarian companies, whose core competency lies in design, construction, reconstruction, rehabilitation and maintenance of- highways and roads…”

Source: RevenueBase Database · checked Sep 23, 2026
3Indirect evidenceSofia, BulgariaHQ checked Sep 23, 2026201-50020 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
4Partial evidenceSofia, BulgariaHQ checked Sep 23, 202611-5017 contacts →

Partial evidence

“SM Engineering Ltd is a company operating in the field of Investment Design.”

Source: RevenueBase Database · checked Sep 23, 2026
5Indirect evidenceVarna, BulgariaHQ checked Sep 23, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
6Partial evidenceSofia, BulgariaHQ checked Sep 23, 202651-2009 contacts →

Partial evidence

“BS Konstructia is a leading construction and engineering company in Bulgaria.”

Source: RevenueBase Database · checked Sep 23, 2026
7Indirect evidenceSofia, BulgariaHQ checked Sep 23, 202611-508 contacts →

Indirect evidence

“BUSINESS SPECTOR Ltd.”

Source: RevenueBase Database · checked Sep 23, 2026
8Strong evidenceSofia, BulgariaHQ checked Sep 23, 20261-107 contacts →

Strong evidence

“Civil and Structural Engineering Consultants.”

Source: RevenueBase Database · checked Sep 23, 2026
9Partial evidenceSofia, BulgariaHQ checked Sep 23, 20261-106 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
10Partial evidenceBurgas, BulgariaHQ checked Sep 23, 202651-2006 contacts →

Partial evidence

“Artstroy 1 Construction EOOD is a construction and engineering company, which started operations as an individual unit in the beginning of 2017.”

Source: RevenueBase Database · checked Sep 23, 2026
11Partial evidenceSofia, BulgariaHQ checked Sep 23, 20261-105 contacts →

Partial evidence

“Kreyo est un bureau d ‘études, spécialisé dans l ‘élaboration de plans d’exécution de génie civil (plan de coffrage/ferraillage en 2D et 3D, plans méthodes, plans de construction…”

Source: RevenueBase Database · checked Sep 23, 2026
12Strong evidenceSofia, BulgariaHQ checked Sep 23, 202611-503 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
13Indirect evidenceSofia, BulgariaHQ checked Sep 23, 20261-103 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 23, 2026
14Indirect evidenceSofia, BulgariaHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
15Partial evidenceSofia, BulgariaHQ checked Sep 23, 202611-502 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidencePlovdiv, BulgariaHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

“At CES Clean Energy Solutions Bulgaria, we help turn complex building and energy challenges into clear, well-coordinated and buildable solutions, from early ideas through to…”

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidenceSofia, BulgariaHQ checked Sep 23, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 23, 2026

Showing 17 of 95 civil engineering consultancy firms based in Bulgaria

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Civil engineering consultancy firms based in Bulgaria at a glance

As of Sep 23, 2026
19.4%Verified-email coverage
0.8%Mobile-number coverage
6.6Average contacts per company
1-10Median size (employees)
50.5%Largest-city concentration · Sofia
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
57
11-50
27
51-200
9
201-500
1
1,001-5,000
1

Freshness & accuracy

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

Email last verified

Median 26.0d

Company record updated

Median 88.0d

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 civil engineering consultancy 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 “civil engineering consultancy 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 civil engineering consultancy 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 civil engineering consultancy 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, 122 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 23, 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 civil engineering consultancy 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 civil engineering consultancy firms are there based in Bulgaria?

RevenueBase identified 95 civil engineering consultancy 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?

IPA, headquartered in Sofia, tops this list with the largest team on record.

Which city has the most civil engineering consultancy firms?

Sofia leads with 48 headquartered companies, followed by Sofia City (17) and Plovdiv (7).

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 122 verified decision-maker contacts tracked across these 95 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 23, 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.