Company lists · Data refreshed September 2026

Top 25 Energy infrastructure contractors based in Greece

Name: Energy infrastructure contractors based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 56 companies tracked

RevenueBase identified 56 energy infrastructure contractors headquartered in Greece as of September 2026 and tracks 820 professional contacts across them, including 344 with verified work emails. Athens is the largest hub.

This list covers energy infrastructure contractors headquartered in Greece, 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

56Companies

820Contacts tracked

344Verified emails

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The 25 largest energy infrastructure contractors based in Greece

Ranked by team size

Top 25 of 56 energy infrastructure contractors based in Greece, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure contractors: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Elemka S.A	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	51-200	107 contacts →
	Partial evidence “ELEMKA ’s main activities in Greece and abroad are the following: • Construction and management of civil works, including projects in the energy sector, special steel structures…” Source: RevenueBase Database · checked Sep 16, 2026
2	Protasis SA	Partial evidence	Chalandri, GreeceHQ checked Sep 16, 2026	51-200	102 contacts →
	Partial evidence “PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…” Source: RevenueBase Database · checked Sep 16, 2026
3	Paralos Energy	Partial evidence	Marousi, GreeceHQ checked Sep 16, 2026	51-200	89 contacts →
	Partial evidence “Paralos Energy specialises in the design, construction, commissioning, operation and maintenance of energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
4	C&m Engineering S.A	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	51-200	46 contacts →
	Indirect evidence “C&M Engineering is a Consulting Engineering company, in Project Management & Control, Design & Engineering, Construction Management, operating in South-East Europe.” Source: RevenueBase Database · checked Sep 16, 2026
5	MGK Tech	Indirect evidence	Lykovrysi, GreeceHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “MGK Tech is an engineering firm specialized in Engineering, Procurement, Construction, Commissioning and O&M Services for Electrical Substations, Conventional and Renewable Power…” Source: RevenueBase Database · checked Sep 16, 2026
6	Aktor SA	Partial evidence	GreeceHQ checked Sep 16, 2026	1,001-5,000	33 contacts →
	Partial evidence “AKTOR, member of Intrakat Group, is established as a leading international infrastructure company with operations in 14 countries, providing a wide range of highly diversified…” Source: RevenueBase Database · checked Sep 16, 2026
7	Entec Contractors S.A. GR	Strong evidence	Kallithea, GreeceHQ checked Sep 16, 2026	51-200	31 contacts →
	Strong evidence “Entec Contractors S.A, a member of the Entec Group, is an Engineering, Procurement and Construction (EPC) company for the energy and digital transition.” Source: RevenueBase Database · checked Sep 16, 2026
8	STR Power Group	Indirect evidence	Imittos, GreeceHQ checked Sep 16, 2026	51-200	30 contacts →
	Indirect evidence “Founded in 1993, STR POWER has grown to be the an internationally accomplished group of companies in the sector of PV Plants and OCL Electrification and Railway…” Source: RevenueBase Database · checked Sep 16, 2026
9	Emek SA	Indirect evidence	Aspropyrgos, GreeceHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “With an experience of more than 50 years in the fields of Construction and Heavy Industrial Fabrication on a domestic and international level, we operate today in the sectors of…” Source: RevenueBase Database · checked Sep 16, 2026
10	Isolar SA	Partial evidence	Marousi, GreeceHQ checked Sep 16, 2026	51-200	21 contacts →
	Partial evidence “iSOLAR SA established in 2010 as an EPC Contractor for Solar and Wind Projects.” Source: RevenueBase Database · checked Sep 16, 2026
11	ATEKE	Strong evidence	Aigaleo, GreeceHQ checked Sep 16, 2026	51-200	20 contacts →
	Strong evidence “ATEKE is a dynamic and highly specialized construction and engineering company based in Athens, Greece, with a strong legacy of delivering complex infrastructure, energy, and…” Source: RevenueBase Database · checked Sep 16, 2026
12	Kryacon S.A	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
13	Dimkat Constructions & Energy	Partial evidence	Metamorfosi, GreeceHQ checked Sep 16, 2026	51-200	17 contacts →
	Partial evidence “DIMKAT Construction is a Greece based enterprise and specializes in the development and EPC of Renewable Energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
14	Pipeserv Engineering	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Pipeserv is an engineering, construction and consulting partner for industrial projects.” Source: RevenueBase Database · checked Sep 16, 2026
15	Eaton PC	Indirect evidence	GreeceHQ checked Sep 16, 2026	1-10	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
16	Inovtech	Strong evidence	Lykovrysi, GreeceHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “Inovtech Engineering & Consulting provides diverse specialist services to renewable energy & power generation developers & contractors, distribution & transmission utilities, and…” Source: RevenueBase Database · checked Sep 16, 2026
17	ADM Andriopouli Bros S.A	Partial evidence	Acharnai, GreeceHQ checked Sep 16, 2026	51-200	7 contacts →
	Partial evidence “Since its foundation and up to the present day, ADM has been providing customized electromechanical solutions, construction and high-quality services in the fields of Energy…” Source: RevenueBase Database · checked Sep 16, 2026
18	Arignoti Engineering	Partial evidence	Thessaloniki, GreeceHQ checked Sep 16, 2026	1-10	6 contacts →
	Partial evidence “ARIGNOTI Engineering founded in 2021, has already developed extensive expertise in industrial and energy generation projects, combining project design and engineering with…” Source: RevenueBase Database · checked Sep 16, 2026
19	Vier S.T.A. General Contractors	Indirect evidence	Κοζάνη, GreeceHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
20	Vientec S.A	Indirect evidence	Acharnes, GreeceHQ checked Sep 16, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
21	Liakos Consulting & Construction Λιάκος Μελετητική Κατασκευαστική	Partial evidence	Kozani, GreeceHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “LIAKOS CONSULTING & CONSTRUCTION is a new engineering company engaged in the design and construction of all kinds of technical and energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
22	Enet SA	Strong evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	3 contacts →
	Strong evidence “ENET SA is an EPC Contractor specialising in infrastructure, industrial and energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
23	Zillion EPC	Partial evidence	Thessaloniki, GreeceHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “EXCEEDING THE LIMITS IN CLEAN ENERGY zillion operates in the field of study, procurement, and construction of public sector and private projects, always staying true to the values…” Source: RevenueBase Database · checked Sep 16, 2026
24	Kalentel Kaltsonis Energy Telecom	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “KALENTEL is a technical consulting and commercial company established in early 2022, based in 25 years of knowledge in energy and telecommunications technology.” Source: RevenueBase Database · checked Sep 16, 2026
25	EMEC	Strong evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	1 contacts →
	Strong evidence “Turn-key tailored services for the energy & infrastructure industries.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy infrastructure contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy infrastructure contractors.
Partial evidence: Its own public description names part of energy infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 56 energy infrastructure contractors based in Greece

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Energy infrastructure contractors based in Greece at a glance

As of Sep 16, 2026

42.0%Verified-email coverage

14.6Average contacts per company

11-50Median size (employees)

26.8%Largest-city concentration · Athens

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Greece, so it is reported there. Company counts and contact totals on this page are exact for Greece, over 56 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 contractors, 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 Greece whose own description of what they do matches “energy infrastructure contractors”. 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 contractors), 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 contractors, and records with no verified work email. Companies headquartered outside Greece 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, 344 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.

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 contractors, 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 contractors are there based in Greece?

RevenueBase identified 56 energy infrastructure contractors headquartered in Greece 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?

Elemka S.A, headquartered in Athens, tops this list with the largest team on record.

Which city has the most energy infrastructure contractors?

Athens leads with 15 headquartered companies, followed by Thessaloniki (3) and Kozani (2).

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 344 verified decision-maker contacts tracked across these 56 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.