Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 259 companies tracked

RevenueBase identified 259 energy infrastructure consulting firms headquartered in Greece as of September 2026 and tracks 2,852 professional contacts across them, including 858 with verified work emails. Athens is the largest hub.

This list covers energy infrastructure consulting firms 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 21, 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 21, 2026 86% judged on-target in blind review

259Companies

2,852Contacts tracked

858Verified emails

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The 25 largest energy infrastructure consulting firms based in Greece

Ranked by team size

Top 25 of 259 energy infrastructure consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Salfo & Associates SA	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	201-500	361 contacts →
	Partial evidence “About SALFO & Associates SALFO & Associates SA is a premier Greek Engineering & Management Consulting firm, delivering excellence through innovation, integrity, and human-centric…” Source: RevenueBase Database · checked Sep 21, 2026
2	ENOIA	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	201-500	211 contacts →
	Partial evidence “ENOIA is a Multi-Disciplinary Engineering & Project Management Consultant in the Energy, Water and Industrial sector.” Source: RevenueBase Database · checked Sep 21, 2026
3	Samaras & Associates Sa-Consulting Engineers	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	201-500	153 contacts →
	Indirect evidence “Η «Σαμαράς & Συνεργάτες Α.Ε- Σύμβουλοι Μηχανικοί» αποτελεί, σήμερα, τη μεγαλύτερη και αρτιότερα στελεχωμένη μελετητική και συμβουλευτική εταιρεία στην Ελλάδα.” Source: RevenueBase Database · checked Sep 21, 2026
4	Asprofos Engineering	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	201-500	132 contacts →
	Indirect evidence “ASPROFOS Engineering is a leading engineering consultancy company in the Oil & Gas Sector operating in accordance to internationally recognized standards and practices.” Source: RevenueBase Database · checked Sep 21, 2026
5	Elemka S.A	Partial evidence	Athens, GreeceHQ checked Sep 21, 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 21, 2026
6	Protasis SA	Strong evidence	Chalandri, GreeceHQ checked Sep 21, 2026	51-200	102 contacts →
	Strong 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 21, 2026
7	Paralos Energy	Partial evidence	Marousi, GreeceHQ checked Sep 21, 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 21, 2026
8	Renel Energy & Power Engineering	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	11-50	49 contacts →
	Partial evidence “Renel provides innovative, holistic solutions for energy and electromechanical projects and services.” Source: RevenueBase Database · checked Sep 21, 2026
9	C&m Engineering S.A	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	51-200	46 contacts →
	Partial 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 21, 2026
10	MGK Tech	Indirect evidence	Lykovrysi, GreeceHQ checked Sep 21, 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 21, 2026
11	Dase Engineering	Indirect evidence	Khalándrion, GreeceHQ checked Sep 21, 2026	11-50	34 contacts →
	Indirect evidence “DASE is established by a mixed team of experienced and young engineers who shared the inspiring vision to create a modern engineering service company, capable of meeting the…” Source: RevenueBase Database · checked Sep 21, 2026
12	Aktor SA	Partial evidence	GreeceHQ checked Sep 21, 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 21, 2026
13	Entec Contractors S.A. GR	Partial evidence	Kallithea, GreeceHQ checked Sep 21, 2026	51-200	31 contacts →
	Partial 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 21, 2026
14	Samaras & Partners Group Of Companies	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	201-500	31 contacts →
	Indirect evidence “Ο Όμιλος «Σαμαράς & Συνεργάτες» κατέχει ηγετική θέση στην ελληνική αγορά ως ένας από τους πλέον ολοκληρωμένους μελετητικούς και συμβουλευτικούς οργανισμούς, παρέχοντας…” Source: RevenueBase Database · checked Sep 21, 2026
15	Exergia S.A., Climate Change Consultants	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “EXERGIA is an independent firm of consultants operating internationally and providing specialized advice, expertise and technical consultancy on the sectors of Energy, Environment…” Source: RevenueBase Database · checked Sep 21, 2026
16	STR Power Group	Indirect evidence	Imittos, GreeceHQ checked Sep 21, 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 21, 2026
17	Airenergy SA	Partial evidence	Agia Paraskevi, GreeceHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “AirEnergy S.A, was established in 2008, leads to energy transition towards a sustainable future in Greece.” Source: RevenueBase Database · checked Sep 21, 2026
18	Trek Development SA	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “TREK Development is among the top Project Development in INFRASTRUCTURE & Professional Services Public listed company (ATHEX: TREK) in the region.” Source: RevenueBase Database · checked Sep 21, 2026
19	Enomix	Partial evidence	Chania, GreeceHQ checked Sep 21, 2026	11-50	23 contacts →
	Partial evidence “We at ENOMIX are a group of passionate people delighted to work and contribute in the area of Next Generation Networks, Competition and Infrastructure Development.” Source: RevenueBase Database · checked Sep 21, 2026
20	A&g Powering Construction	Partial evidence	Agios Dimitrios, GreeceHQ checked Sep 21, 2026	51-200	23 contacts →
	Partial evidence “Powering tomorrow's infrastructure through engineering excellence.” Source: RevenueBase Database · checked Sep 21, 2026
21	ATEKE	Strong evidence	Aigaleo, GreeceHQ checked Sep 21, 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 21, 2026
22	ETME	Indirect evidence	Neo Psichiko, GreeceHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect evidence “With a history of more than 45 years in engineering design and project management, ETME S.A.” Source: RevenueBase Database · checked Sep 21, 2026
23	Pipeserv Engineering	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Pipeserv is an engineering, construction and consulting partner for industrial projects.” Source: RevenueBase Database · checked Sep 21, 2026
24	Panmarine & Industrial Services LTD	Indirect evidence	Piraeus, GreeceHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “PanMarine & Industrial Services Ltd was established in Piraeus, to accommodate the needs of the Greek Marine, Power and Industrial sectors.” Source: RevenueBase Database · checked Sep 21, 2026
25	Gecko Power Solutions	Partial evidence	Marousi, GreeceHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Gecko Power Solutions is an engineering and consulting company specialized in Power Grids, HV & MV Substations, Power Generation and Industry projects.” Source: RevenueBase Database · checked Sep 21, 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of energy infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure consulting firms. 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 259 energy infrastructure consulting firms based in Greece

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Energy infrastructure consulting firms based in Greece at a glance

As of Sep 21, 2026

30.1%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

28.2%Largest-city concentration · Athens

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

133

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 259 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 consulting 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 Greece whose own description of what they do matches “energy infrastructure consulting 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 energy infrastructure consulting 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 energy infrastructure consulting firms, 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, 858 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 21, 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 consulting firms by metro

Energy infrastructure consulting firms in Athens73

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 consulting 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 energy infrastructure consulting firms are there based in Greece?

RevenueBase identified 259 energy infrastructure consulting firms 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?

Salfo & Associates SA, headquartered in Athens, tops this list with the largest team on record.

Which city has the most energy infrastructure consulting firms?

Athens leads with 73 headquartered companies, followed by Thessaloniki (6) and Patras (5).

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 858 verified decision-maker contacts tracked across these 259 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 21, 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.