Company lists · Data refreshed September 2026

Top 25 Geoscience consulting firms based in Greece

RevenueBase identified 127 geoscience consulting firms headquartered in Greece as of September 2026 and tracks 1,072 professional contacts across them, including 202 with verified work emails. Athens is the largest hub.

This list covers geoscience 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 28, 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 28, 2026 86% judged on-target in blind review
127Companies
1,072Contacts tracked
202Verified emails
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The 25 largest geoscience consulting firms based in Greece

Ranked by team size
Top 25 of 127 geoscience consulting firms based in Greece, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to geoscience 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceThessaloniki, GreeceHQ checked Sep 28, 202651-20045 contacts →

Indirect evidence

“GAIA S.A.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceMarousi, GreeceHQ checked Sep 28, 202611-5039 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceKhalándrion, GreeceHQ checked Sep 28, 202611-5035 contacts →

Partial evidence

“Envirometrics is a leading environmental consulting firm specializing in sustainability and environmental protection.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceAthens, GreeceHQ checked Sep 28, 202611-5030 contacts →

Indirect 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 28, 2026
5Partial evidenceΑθήνα, GreeceHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

“The Marine Applied Research and New Technologies S.A.(MARNET S.A.) was established in 1993 in Greece, as a consulting and research engineering company.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceGreeceHQ checked Sep 28, 202611-5027 contacts →

Partial evidence

“Η εταιρεία Break Even Consulting ειδικεύεται στην παροχή συμβουλευτικών και μελετητικών υπηρεσιών υψηλής ποιότητας σε επιχειρήσεις, οργανισμούς και σε φορείς του δημοσίου και…”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceThessaloniki, GreeceHQ checked Sep 28, 202611-5025 contacts →

Indirect evidence

“Η ΓΕΩΜΕΛΕΤΗΤΙΚΗ Α.Ε – Σύμβουλοι Μηχανικοί είναι μια τεχνική εταιρεία με έδρα τη Θεσσαλονίκη και γεωγραφική εμβέλεια σε ολόκληρη την Ελλάδα, προσηλωμένη στην παροχή ολοκληρωμένων…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceAthens, GreeceHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“EDAFOS S.A.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidencePiraeus, GreeceHQ checked Sep 28, 202611-5015 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 28, 2026
10Indirect evidenceThessaloniki, GreeceHQ checked Sep 28, 202611-5010 contacts →

Indirect evidence

“EcoResources is a private research and development company based in Thessaloniki, Greece.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceZografou, GreeceHQ checked Sep 28, 20261-1010 contacts →

Indirect evidence

“Topo G.E.S.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceAthens, GreeceHQ checked Sep 28, 202611-509 contacts →

Indirect evidence

“FGRID is your renewable energy personal licensing consultant.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceAthens, GreeceHQ checked Sep 28, 202611-508 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 28, 2026
14Indirect evidenceAthens, GreeceHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Geosysta ltd provides engineering consultancy, scientific services and software systems directed towards the geotechnical and mining sector.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceAthens, GreeceHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceAthens, GreeceHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“TEAM E-M Consulting Engineers S.A.(TEAM E-M S.A.) is a professional consulting firm, certified according to EN ISO 9001:2008 by the TUV CERT Certification Body, offering its…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceThessaloniki, GreeceHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Geodynamiki Techniki P.C.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidencePiraeus, GreeceHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“Commanding rich resources of knowledge and skill, Atlantic Marine Associates (Hellas), Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceAthens, GreeceHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Our main philosophy is to combine good and value engineering in every Project we are involved with.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceAgia Paraskevi, GreeceHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“RNR Engineers Consulting is a specialized design and consulting company committed to providing its clients with engineering services that fulfill their needs and vision.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceMagoúla, GreeceHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“SolidBlue Engineering is a specialized consulting firm operating in the fields of Energy, Environment, and Industrial Safety.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceAmaroúsion, GreeceHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“PM-Partners founded in 2012, having its head office in Athens Greece.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAthens, GreeceHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Η Q4U είναι εταιρεία συμβούλων μηχανικών με μεγάλη εμπειρία σε θέματα συστημάτων ποιότητας, αδειοδοτήσεις επιχειρήσεων, περιβαλλοντικές μελέτες, συστήματα ανακύκλωσης και…”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceKholargós, GreeceHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

“Η HFT Consultants έχει ως αντικείμενο δραστηριότητας την παροχή εξειδικευμένων συμβουλευτικών υπηρεσιών σε ιδιώτες, επιχειρήσεις και οργανισμούς.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceThessaloniki, GreeceHQ checked Sep 28, 202611-502 contacts →

Indirect evidence

“Η εταιρεία διαθέτει άρτια εκπαιδευμένο προσωπικό με όλες τις ειδικότητες των μηχανικών καθώς και εξωτερικούς συνεργάτες μηχανικούς (Αρχιτέκτονες, Πολιτικούς Μηχανικούς…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 127 geoscience consulting firms based in Greece

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Geoscience consulting firms based in Greece at a glance

As of Sep 28, 2026
18.8%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
29.1%Largest-city concentration · Athens
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
54
51-200
8

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 127 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 geoscience 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 “geoscience 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 geoscience 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 geoscience 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, 202 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 28, 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 geoscience 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 geoscience consulting firms are there based in Greece?

RevenueBase identified 127 geoscience 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?

Gaia SA, headquartered in Greece, tops this list with the largest team on record.

Which city has the most geoscience consulting firms?

Athens leads with 37 headquartered companies, followed by Thessaloniki (4) and Greece (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 202 verified decision-maker contacts tracked across these 127 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 28, 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.