Company lists · Data refreshed September 2026

Top 25 Infrastructure construction companies based in Romania

RevenueBase identified 204 infrastructure construction companies headquartered in Romania as of September 2026 and tracks 3,079 professional contacts across them, including 768 with verified work emails. Bucharest is the largest hub.

This list covers infrastructure construction companies headquartered in Romania, 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 15, 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 15, 2026 86% judged on-target in blind review
204Companies
3,079Contacts tracked
768Verified emails
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The 25 largest infrastructure construction companies based in Romania

Ranked by team size
Top 25 of 204 infrastructure construction companies based in Romania, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure construction companies: 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
1Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 20261,001-5,000465 contacts →

Indirect evidence

“PORR Construct S.R.L.”

Source: RevenueBase Database · checked Sep 15, 2026
2Partial evidenceSectorul 1, RomaniaHQ checked Sep 15, 20261,001-5,000242 contacts →

Partial evidence

“Concelex is THE integrated infrastructure company.”

Source: RevenueBase Database · checked Sep 15, 2026
3Strong evidenceCluj-napoca, RomaniaHQ checked Sep 15, 2026501-1,000223 contacts →

Strong evidence

“An entrepreneurial success story started in 1997, and today Electrogrup is one of the main players in the infrastructure construction field in Romania.”

Source: RevenueBase Database · checked Sep 15, 2026
4Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 2026201-50099 contacts →

Indirect evidence

“Companie cu capital integral privat romanesc.”

Source: RevenueBase Database · checked Sep 15, 2026
5Partial evidenceSector 1, RomaniaHQ checked Sep 15, 2026501-1,00068 contacts →

Partial evidence

“IREM GENERAL CONTRACTOR is a world leading construction company working in the OIL & GAS sector, specialized in Piping and Mechanical Works, Civil works, Electrical and…”

Source: RevenueBase Database · checked Sep 15, 2026
6Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 202651-20067 contacts →

Indirect evidence

“Tecnic Consulting Engineering, a proud member of RCI Holding, has been delivering engineering excellence across Eastern Europe since 2007.”

Source: RevenueBase Database · checked Sep 15, 2026
7Partial evidenceBucuresti, RomaniaHQ checked Sep 15, 202651-20065 contacts →

Partial evidence

“BEYOND THE DETAILS BTDConstruct & Ambient is a 100% Romanian company, established in 2013, which operates in the field of general constructions and public works.”

Source: RevenueBase Database · checked Sep 15, 2026
8Indirect evidenceBucureşti, RomaniaHQ checked Sep 15, 20265,001-10,00064 contacts →

Indirect evidence

“GÜLERMAK este un antreprenor internațional de top in domeniul EPC, cunoscut pentru reputația și profesionalismul său.”

Source: RevenueBase Database · checked Sep 15, 2026
9Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 202651-20063 contacts →

Indirect evidence

“SEARCH CORPORATION is one of the leading Romanian engineering companies, providing services of planning, design and consultancy for public administration authorities and private…”

Source: RevenueBase Database · checked Sep 15, 2026
10Partial evidencePloiesti, RomaniaHQ checked Sep 15, 2026201-50058 contacts →

Partial evidence

“HABAU Romania is part of the family HABAU GROUP, an international full-service provider in the areas of building construction, civil engineering, precast construction, underground…”

Source: RevenueBase Database · checked Sep 15, 2026
11Partial evidenceBraşov, RomaniaHQ checked Sep 15, 202651-20053 contacts →

Partial evidence

“Companie privata cu o vastă experienta în domeniul constructiilor, având competenţe avansate si un portofoliu consistent format din construcţii civile, comerciale şi de energie…”

Source: RevenueBase Database · checked Sep 15, 2026
12Indirect evidenceOtopeni, RomaniaHQ checked Sep 15, 202651-20044 contacts →

Indirect evidence

“Terra Gaz Construct si-a inceput activitatea in 1998.”

Source: RevenueBase Database · checked Sep 15, 2026
13Strong evidenceSlobozia, RomaniaHQ checked Sep 15, 2026201-50034 contacts →

Strong evidence

“OYL Company Holding AG operates in the road construction and infrastructure sector, providing comprehensive services including asphalt paving, rehabilitation works, and the…”

Source: RevenueBase Database · checked Sep 15, 2026
14Partial evidenceSector 2, RomaniaHQ checked Sep 15, 2026201-50029 contacts →

Partial evidence

“Firma de constructii civile, de drumuri si edilitare”

Source: RevenueBase Database · checked Sep 15, 2026
15Indirect evidenceRebrisoara, RomaniaHQ checked Sep 15, 2026501-1,00027 contacts →

Indirect evidence

“Infiintata in anul S.C.”

Source: RevenueBase Database · checked Sep 15, 2026
16Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 202651-20027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
17Indirect evidenceBucharest, RomaniaHQ checked Sep 15, 2026n/a26 contacts →

Indirect evidence

“FCC Construcción was established in Romania in 2003.”

Source: RevenueBase Database · checked Sep 15, 2026
18Indirect evidenceSector 1, RomaniaHQ checked Sep 15, 202611-5026 contacts →

Indirect evidence

“Globexterra: Soluții Complete de Arhitectură și Management de Proiect Înființată în 2011, Globexterra reprezintă excelența românească în domeniul proiectării, de arhitectură…”

Source: RevenueBase Database · checked Sep 15, 2026
19Partial evidenceRm. Valcea, RomaniaHQ checked Sep 15, 2026201-50022 contacts →

Partial evidence

“Cominco Oltenia SA perform the next range of works: Civil engineering Manufacture of structural metal products Industrial building Construction of residential and non-residential…”

Source: RevenueBase Database · checked Sep 15, 2026
20Indirect evidenceConstanţa, RomaniaHQ checked Sep 15, 202611-5021 contacts →

Indirect evidence

“ALLPLAN PROIECT starts its activity in 2001, having a basis one simple idea: high quality engineering services.”

Source: RevenueBase Database · checked Sep 15, 2026
21Indirect evidenceBrasov, RomaniaHQ checked Sep 15, 202651-20019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 15, 2026
22Strong evidenceBucharest, RomaniaHQ checked Sep 15, 202651-20019 contacts →

Strong evidence

“Electroproiect provides a wide range of design services for all specialties involved in the construction of a newly built infrastructure and the rehabilitation of existing…”

Source: RevenueBase Database · checked Sep 15, 2026
23Indirect evidenceSectorul 5, RomaniaHQ checked Sep 15, 202611-5018 contacts →

Indirect evidence

“METRANS ENGINEERING is a company founded in 2018, with an integral Romanian capital that aims to respond effectively to any type of Client.”

Source: RevenueBase Database · checked Sep 15, 2026
24Partial evidencePopesti Leordeni, RomaniaHQ checked Sep 15, 202651-20018 contacts →

Partial evidence

“Sorocam, membră a Grupului Colas, este motorul calității în producția de materiale pentru infrastructura de transport din România.”

Source: RevenueBase Database · checked Sep 15, 2026
25Strong evidenceSectorul 1, RomaniaHQ checked Sep 15, 2026501-1,00018 contacts →

Strong evidence

“Alpenside is a leading construction company on the Romanian market, with a wide range of projects – transport infrastructure, civil buildings, environment, water infrastructure.”

Source: RevenueBase Database · checked Sep 15, 2026

Showing 25 of 204 infrastructure construction companies based in Romania

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Infrastructure construction companies based in Romania at a glance

As of Sep 15, 2026
24.9%Verified-email coverage
15.1Average contacts per company
51-200Median size (employees)
21.6%Largest-city concentration · Bucharest
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
46
51-200
65
201-500
21
501-1,000
13
1,001-5,000
7
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 204 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 infrastructure construction companies, 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 Romania whose own description of what they do matches “infrastructure construction companies”. 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 infrastructure construction companies), 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 infrastructure construction companies, and records with no verified work email. Companies headquartered outside Romania 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, 768 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 15, 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.

Infrastructure construction companies by metro

  • Infrastructure construction companies in Bucharest44

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 infrastructure construction companies, 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 infrastructure construction companies are there based in Romania?

RevenueBase identified 204 infrastructure construction companies headquartered in Romania 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?

Porr România, headquartered in Bucharest, tops this list with the largest team on record.

Which city has the most infrastructure construction companies?

Bucharest leads with 44 headquartered companies, followed by Bucuresti (16) and Cluj-Napoca (10).

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 768 verified decision-maker contacts tracked across these 204 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 15, 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.