Company lists · Data refreshed September 2026

Top 25 Energy transition consulting companies based in Greece

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 94 companies tracked

RevenueBase identified 94 energy transition consulting companies headquartered in Greece as of September 2026 and tracks 510 professional contacts across them, including 173 with verified work emails. Athens is the largest hub.

This list covers energy transition consulting companies 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

94Companies

510Contacts tracked

173Verified emails

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The 25 largest energy transition consulting companies based in Greece

Ranked by team size

Top 25 of 94 energy transition consulting companies 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 transition consulting 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	C&m Engineering S.A	Partial evidence	Athens, GreeceHQ checked Sep 16, 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 16, 2026
2	Exergia S.A., Climate Change Consultants	Partial evidence	Athens, GreeceHQ checked Sep 16, 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 16, 2026
3	E3-Modelling Energy-Economy-Environment	Partial evidence	Athens, GreeceHQ checked Sep 16, 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 16, 2026
4	Define Solutions S.A	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “At Define Solutions, we put your business needs and goals first, in order to deliver tailored solutions that drive growth and streamline operations.” Source: RevenueBase Database · checked Sep 16, 2026
5	Terra Neutral PC	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “TERRA NEUTRAL provides services for the sustainable growth of its clients by managing the risks arising from climate change, resource depletion and environmental degradation.” Source: RevenueBase Database · checked Sep 16, 2026
6	Entec Green Economy Consultants GR	Partial evidence	GreeceHQ checked Sep 16, 2026	11-50	14 contacts →
	Partial 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 16, 2026
7	Eaton PC	Indirect evidence	GreeceHQ checked Sep 16, 2026	1-10	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
8	Estia Consulting & Engineering SA	Partial evidence	Thessaloniki, GreeceHQ checked Sep 16, 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 16, 2026
9	Holistic	Strong evidence	Agia Paraskevi, GreeceHQ checked Sep 16, 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 16, 2026
10	Dektis Consultant Engineers LTD	Indirect evidence	Ag. Anargiri, GreeceHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
11	Enter G	Strong evidence	Khalándrion, GreeceHQ checked Sep 16, 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 16, 2026
12	Entricity	Partial evidence	Kifisia, GreeceHQ checked Sep 16, 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 16, 2026
13	FGRID	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “FGRID is your renewable energy personal licensing consultant.” Source: RevenueBase Database · checked Sep 16, 2026
14	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
15	Prenecon	Indirect evidence	Glifadha, GreeceHQ checked Sep 16, 2026	201-500	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
16	Innoveco Consulting Services	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “INNOVECO is an independent engineering and consulting firm, which provides specialized services on environmental management, optimization and sustainable development.” Source: RevenueBase Database · checked Sep 16, 2026
17	Climergia	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “Climate friendly transformations towards a solid green future.” 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	Arservices	Indirect evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “ARServices is a leading company on renewable applications and innovation.” Source: RevenueBase Database · checked Sep 16, 2026
20	Synergia Technical & Investment Consultant SA	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “SYNERGIA TECHNICAL AND CONSULTING S.A was established a decade ago, within a period of great financial constraint and depression in Greece, as an effort of our founders to combine…” Source: RevenueBase Database · checked Sep 16, 2026
21	Solidblue Engineering	Strong evidence	Magoúla, GreeceHQ checked Sep 16, 2026	1-10	4 contacts →
	Strong evidence “SolidBlue Engineering is a specialized consulting firm operating in the fields of Energy, Environment, and Industrial Safety.” Source: RevenueBase Database · checked Sep 16, 2026
22	Iwind Renewables S.A	Strong evidence	Gerakas, GreeceHQ checked Sep 16, 2026	1-10	3 contacts →
	Strong evidence “iWind Renewables is a consulting company based in Greece, founded by professionals with advanced knowledge and experience in renewable energy technologies, involved in the design…” Source: RevenueBase Database · checked Sep 16, 2026
23	Deltaenergy	Strong evidence	Athens, GreeceHQ checked Sep 16, 2026	11-50	3 contacts →
	Strong evidence “DELTAENERGY is a dynamic Greek consulting company in the energy sector.” Source: RevenueBase Database · checked Sep 16, 2026
24	Global-Energy Solutions LTD	Partial evidence	Thessaloniki, GreeceHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “GLOBAL-ENERGY Solutions Ltd (G.E.S.” Source: RevenueBase Database · checked Sep 16, 2026
25	Energy Profit	Partial evidence	Athens, GreeceHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Η ENERGY PROFIT είναι ενεργειακή συμβουλευτική εταιρεία με εξειδίκευση στον στρατηγικό ενεργειακό σχεδιασμό, στον τομέα της παραγωγής ενέργειας από ανανεώσιμες πηγές (ΑΠΕ), την…” 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 transition consulting companies. 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 transition consulting companies.
Partial evidence: Its own public description names part of energy transition consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy transition consulting companies. 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 94 energy transition consulting companies based in Greece

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Energy transition consulting companies based in Greece at a glance

As of Sep 16, 2026

33.9%Verified-email coverage

5.4Average contacts per company

1-10Median size (employees)

23.4%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 94 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 transition consulting 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 Greece whose own description of what they do matches “energy transition consulting 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 energy transition consulting 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 energy transition consulting companies, 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, 173 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 transition consulting 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 energy transition consulting companies are there based in Greece?

RevenueBase identified 94 energy transition consulting companies 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?

C&m Engineering S.A, headquartered in Athens, tops this list with the largest team on record.

Which city has the most energy transition consulting companies?

Athens leads with 22 headquartered companies, followed by Corinth (2) and Salonica (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 173 verified decision-maker contacts tracked across these 94 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.