Company lists · Data refreshed September 2026

Top 23 Energy infrastructure developers based in Romania

RevenueBase identified 81 energy infrastructure developers headquartered in Romania as of September 2026 and tracks 1,797 professional contacts across them, including 421 with verified work emails. Bucharest is the largest hub.

This list covers energy infrastructure developers 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 16, 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 16, 2026 86% judged on-target in blind review
81Companies
1,797Contacts tracked
421Verified emails
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The 23 largest energy infrastructure developers based in Romania

Ranked by team size
Top 23 of 81 energy infrastructure developers based in Romania, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure developers: 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 evidenceCluj-napoca, RomaniaHQ checked Sep 16, 2026501-1,000223 contacts →

Partial 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 16, 2026
2Partial evidenceBucharest, RomaniaHQ checked Sep 16, 20261,001-5,000180 contacts →

Partial evidence

“Cu o tradiție de peste 120 de ani în domeniul energiei și un portofoliu de peste 3,5 milioane de clienți, suntem în prezent liderul pieței de furnizare a energiei electrice din…”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceCluj-napoca, RomaniaHQ checked Sep 16, 2026501-1,000176 contacts →

Partial evidence

“We are a competitive, strong and trustworthy company in the sector of major electrical energy players.”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceOtopeni, RomaniaHQ checked Sep 16, 2026201-500121 contacts →

Strong evidence

“Premier Energy Group is one of the fastest growing privately-owned vertically integrated energy infrastructure companies in SEE and one of the largest renewable energy players in…”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceSector 1, RomaniaHQ checked Sep 16, 20261,001-5,00084 contacts →

Partial evidence

“In today's world, technology is king, yet it runs on infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceSector 2, RomaniaHQ checked Sep 16, 202651-20053 contacts →

Partial evidence

“Alive Capital is an integrated energy platform founded in Romania in 2013.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceSector 2, RomaniaHQ checked Sep 16, 202651-20048 contacts →

Partial evidence

“In 2005, a team of young engineers from the field of energy, establishes ELEKTRA INVEST.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceTimișoara, RomaniaHQ checked Sep 16, 202651-20048 contacts →

Partial evidence

“Restart Energy este o companie din prima linie în domeniul energiei care deține capital mixt româno-american.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceArad, RomaniaHQ checked Sep 16, 202651-20041 contacts →

Partial evidence

“Wiren's mission is to reshape the energy landscape by making sustainable energy universally accessible.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceOradea, RomaniaHQ checked Sep 16, 2026201-50040 contacts →

Partial evidence

“Fgm Solar has years of experience in the renewable energy sector and perforations.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceBucharest, RomaniaHQ checked Sep 16, 202651-20028 contacts →

Partial evidence

“At SimeRom, we know how important the design can be in the Energy field.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceConstanţa, RomaniaHQ checked Sep 16, 2026201-50025 contacts →

Partial evidence

“Monsson is the first company established within Monsson Group, a group that has been leading the way in renewable energy for over 15 years.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceBrasov, RomaniaHQ checked Sep 16, 202651-20019 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceSectorul 1, RomaniaHQ checked Sep 16, 202611-5014 contacts →

Indirect evidence

“We are a strong regional EPC for the RES industry.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceSector 1, RomaniaHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceBucharest, RomaniaHQ checked Sep 16, 20261-1010 contacts →

Partial evidence

“SolarToday Romania is a trusted wholesale distributor and a Full-Scope Energy Storage Solutions Provider, supporting renewable energy projects across commercial, industrial, and…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceArad, RomaniaHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Presentation Elecon Plus - since 1997 Main activities Design and Build electrical installations (20 kV, 0,4 kV) HVAC design and Build Building maintence Certificates ISO 9001…”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidenceBucharest, RomaniaHQ checked Sep 16, 202611-506 contacts →

Partial evidence

“Founded in 2003, Aquarius Grup actively began trading as a standalone unit in early 2005 and developed briskly leading to the later establishment of Aquarius Developments and…”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidencePiteşti, RomaniaHQ checked Sep 16, 202611-504 contacts →

Partial evidence

“Industrial Facilities Planning Project Designing and Turnkey Construction Applications Production Support Constructions Facility Revision Works Renewable Energy Constructions and…”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceBrasov, RomaniaHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“Autocad and Eplan Electrical design for- 0.4 KV to 110 KV aerial and underground networks - 20 KV and 110 KV substations - power and automation switchboard - complete electrical…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceBucureşti, RomaniaHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceBrasov, RomaniaHQ checked Sep 16, 20261-102 contacts →

Partial evidence

“RST Engineering provides engineering and construction solutions in the industrial segment, with projects covering mainly facilities utilities infrastructure.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceBaia, RomaniaHQ checked Sep 16, 202611-501 contacts →

Partial evidence

“Wind farm developer.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 23 of 81 energy infrastructure developers based in Romania

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Energy infrastructure developers based in Romania at a glance

As of Sep 16, 2026
23.4%Verified-email coverage
22.2Average contacts per company
11-50Median size (employees)
30.9%Largest-city concentration · Bucharest
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
28
51-200
20
201-500
5
501-1,000
2
1,001-5,000
3

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 81 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 energy infrastructure developers, 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 “energy infrastructure developers”. 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 energy infrastructure developers), 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 energy infrastructure developers, 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, 421 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 16, 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.

Energy infrastructure developers by metro

  • Energy infrastructure developers in Bucharest25

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 energy infrastructure developers, 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 energy infrastructure developers are there based in Romania?

RevenueBase identified 81 energy infrastructure developers 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?

Electrogrup, headquartered in Cluj-Napoca, tops this list with the largest team on record.

Which city has the most energy infrastructure developers?

Bucharest leads with 25 headquartered companies, followed by Bucuresti (9) and Brasov (4).

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 421 verified decision-maker contacts tracked across these 81 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 16, 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.