Company lists · Data refreshed September 2026

Top 25 Energy sector consulting firms based in Greece

Name: Energy sector 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 166 companies tracked

RevenueBase identified 166 energy sector consulting firms headquartered in Greece as of September 2026 and tracks 1,377 professional contacts across them, including 326 with verified work emails. Athens is the largest hub.

This list covers energy sector 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

166Companies

1,377Contacts tracked

326Verified emails

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The 25 largest energy sector consulting firms based in Greece

Ranked by team size

Top 25 of 166 energy sector 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 sector 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	Kantor Management Consultants	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	n/a	363 contacts →
	Partial evidence “Kantor Management Consultants is a European consulting firm offering its services to governments, institutional organisations and corporate clients With main offices in Athens and…” Source: RevenueBase Database · checked Sep 21, 2026
2	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
3	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
4	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
5	Envirometrics	Partial evidence	Khalándrion, GreeceHQ checked Sep 21, 2026	11-50	35 contacts →
	Partial evidence “Envirometrics is a leading environmental consulting firm specializing in sustainability and environmental protection.” Source: RevenueBase Database · checked Sep 21, 2026
6	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
7	Exergia S.A., Climate Change Consultants	Strong evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	30 contacts →
	Strong 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
8	DNG Consulting SA	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	29 contacts →
	Partial evidence “Our team is aiming to find the most suitable funding project for your company and to provide consulting services.” Source: RevenueBase Database · checked Sep 21, 2026
9	E3-Modelling Energy-Economy-Environment	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	25 contacts →
	Partial evidence “We are a team of experienced consultants, analysts and modellers specializing in providing consulting services based on advanced empirical modelling of the…” Source: RevenueBase Database · checked Sep 21, 2026
10	Enomix	Indirect evidence	Chania, GreeceHQ checked Sep 21, 2026	11-50	23 contacts →
	Indirect 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
11	Oecon Group Of Companies	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	11-50	17 contacts →
	Partial evidence “OECON Group, a Greek-based consultancy company, has been providing exceptional business consulting services since 2003.” Source: RevenueBase Database · checked Sep 21, 2026
12	Panmarine & Industrial Services LTD	Partial evidence	Piraeus, GreeceHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial 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
13	Entec Green Economy Consultants GR	Strong evidence	GreeceHQ checked Sep 21, 2026	11-50	14 contacts →
	Strong evidence “Green economies consist of activities in sectors such as renewable energy, sustainable construction, eco-transport, protecting land and water resources, and waste management.” Source: RevenueBase Database · checked Sep 21, 2026
14	Embiria Consulting Engineers LLC	Partial evidence	Agios Dimitrios, GreeceHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “EMBIRIA Consulting Engineers was founded in 2002 and since then has acquired a reputation as a reliable and versatile company in the field of Engineering Consulting.” Source: RevenueBase Database · checked Sep 21, 2026
15	Eaton PC	Indirect evidence	GreeceHQ checked Sep 21, 2026	1-10	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
16	Estia Consulting & Engineering SA	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “ESTIA Consulting and Engineering - based in Thessaloniki - is active on development, licensing and engineering of RES projects.” Source: RevenueBase Database · checked Sep 21, 2026
17	Holistic	Strong evidence	Agia Paraskevi, GreeceHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “HOLISTIC offers a wide range of consulting services in the fields of projects organization and management support, digital services and energy and environmental policy and…” Source: RevenueBase Database · checked Sep 21, 2026
18	Intrapower S.A	Partial evidence	Psychiko, GreeceHQ checked Sep 21, 2026	51-200	13 contacts →
	Partial evidence “INTRAPOWER is a company engaged in: • in the field of energy production, saving and management with the integration of high technology solutions in Greece • in the field of…” Source: RevenueBase Database · checked Sep 21, 2026
19	Dektis Consultant Engineers LTD	Indirect evidence	Ag. Anargiri, GreeceHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
20	Enter G	Strong evidence	Khalándrion, GreeceHQ checked Sep 21, 2026	1-10	11 contacts →
	Strong evidence “Energy Trading Merchant Power Trading Risk Management Hedging and Market Access Solutions Energy Business Consulting IT and Customer Care Outsourcing Services White label sales…” Source: RevenueBase Database · checked Sep 21, 2026
21	Enerca	Partial evidence	Thessaloniki, GreeceHQ checked Sep 21, 2026	1-10	11 contacts →
	Partial evidence “ENERCA is a newly established technical company, founded by two Electrical Engineers, who have vast experience in Engineering, Procurement and Construction (EPC) projects…” Source: RevenueBase Database · checked Sep 21, 2026
22	Aegis S.K	Indirect evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Aegis S.K.” Source: RevenueBase Database · checked Sep 21, 2026
23	VIS Economic & Energy Consultants	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “VIS Economic & Energy Consultants provides specialized consultancy services to address the needs of private and institutional clients, across the energy (oil, gas, electricity…” Source: RevenueBase Database · checked Sep 21, 2026
24	HM Engineering S.A	Partial evidence	Athens, GreeceHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “The company’s main objective is to provide Engineering Consulting Services in designing and supervision of Buildings, Industrial installations and Infrastructure projects.” Source: RevenueBase Database · checked Sep 21, 2026
25	Entricity	Partial evidence	Kifisia, GreeceHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Entricity is a Firm specializing in Renewable Energy with a focus on the European markets.” 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 sector 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 sector consulting firms.
Partial evidence: Its own public description names part of energy sector 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 sector 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 166 energy sector consulting firms based in Greece

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Energy sector consulting firms based in Greece at a glance

As of Sep 21, 2026

23.7%Verified-email coverage

8.3Average contacts per company

1-10Median size (employees)

28.9%Largest-city concentration · Athens

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

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 166 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 sector 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 sector 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 sector 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 sector 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, 326 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 sector consulting firms by metro

Energy sector consulting firms in Athens48

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 sector 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 sector consulting firms are there based in Greece?

RevenueBase identified 166 energy sector 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?

Kantor Management Consultants, headquartered in Athens, tops this list with the largest team on record.

Which city has the most energy sector consulting firms?

Athens leads with 48 headquartered companies, followed by Thessaloniki (4) and Salonica (3).

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 326 verified decision-maker contacts tracked across these 166 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.