Company lists · Data refreshed September 2026

Top 25 Marine environmental consultancies based in Greece

Name: Marine environmental consultancies based in Greece
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 226 companies tracked

RevenueBase identified 226 marine environmental consultancies headquartered in Greece as of September 2026 and tracks 2,015 professional contacts across them, including 636 with verified work emails. Athens is the largest hub.

This list covers marine environmental consultancies 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 14, 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 14, 2026 86% judged on-target in blind review

226Companies

2,015Contacts tracked

636Verified emails

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The 25 largest marine environmental consultancies based in Greece

Ranked by team size

Top 25 of 226 marine environmental consultancies based in Greece, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to marine environmental consultancies: 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	Kyklades Maritime Corporation	Partial evidence	Piraeus, GreeceHQ checked Sep 14, 2026	501-1,000	162 contacts →
	Partial evidence “Kyklades Maritime Corporation (KMC) balances the importance of maritime tradition with a forward thinking approach coupled with an innovative policy that assists in propelling us…” Source: RevenueBase Database · checked Sep 14, 2026
2	Erma First	Indirect evidence	Perama, GreeceHQ checked Sep 14, 2026	201-500	142 contacts →
	Indirect evidence “ERMA FIRST - From saving the oceans, to safeguarding the planet Founded in 2009 and headquartered in Greece, ERMA FIRST is a leading manufacturer and provider of future-proof…” Source: RevenueBase Database · checked Sep 14, 2026
3	Thalis ES SA	Indirect evidence	Athens, GreeceHQ checked Sep 14, 2026	51-200	95 contacts →
	Indirect evidence “THALIS E.S.” Source: RevenueBase Database · checked Sep 14, 2026
4	Alpha Marine Consulting P.C	Partial evidence	Piraeus, GreeceHQ checked Sep 14, 2026	51-200	81 contacts →
	Partial evidence “Alpha Marine Consulting (AMC) is a leading marine consultancy firm, ranking among the largest in Europe.” Source: RevenueBase Database · checked Sep 14, 2026
5	Environmental Protection Engineering	Strong evidence	Piraeus, GreeceHQ checked Sep 14, 2026	201-500	73 contacts →
	Strong evidence “EPE is one of the largest companies in Southeast Europe offering complete services for the protection and clean-up of the industrial and marine environment.” Source: RevenueBase Database · checked Sep 14, 2026
6	Kalimbassieris Maritime	Partial evidence	Pireás, GreeceHQ checked Sep 14, 2026	51-200	65 contacts →
	Partial evidence “We are a marine consultancy firm offering both in depth technical expertise and claims handling services.” Source: RevenueBase Database · checked Sep 14, 2026
7	Technava S.A	Partial evidence	Paleo Faliro, GreeceHQ checked Sep 14, 2026	51-200	47 contacts →
	Partial evidence “Technava was founded in 1968 aiming to supply marine equipment and technical support to the Greek Shipping Industry.” Source: RevenueBase Database · checked Sep 14, 2026
8	Enveco S.A	Indirect evidence	Marousi, GreeceHQ checked Sep 14, 2026	11-50	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
9	Diving Status	Indirect evidence	Acharnes, GreeceHQ checked Sep 14, 2026	51-200	39 contacts →
	Indirect evidence “DIVING STATUS is licensed and certified to perform commercial underwater and diving services including underwater ship repair, ship maintenance, classification society approved…” Source: RevenueBase Database · checked Sep 14, 2026
10	Envirometrics	Partial evidence	Khalándrion, GreeceHQ checked Sep 14, 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 14, 2026
11	Spectrumlabs S.A	Indirect evidence	Piraeus, GreeceHQ checked Sep 14, 2026	11-50	27 contacts →
	Indirect evidence “Experience - Reliability - Partnership Since 1967, dedicated to quality in a wide range of services SpectrumLabs, quality control laboratories, is the first laboratory in Piraeus…” Source: RevenueBase Database · checked Sep 14, 2026
12	Marnet S.A	Partial evidence	Αθήνα, GreeceHQ checked Sep 14, 2026	11-50	27 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 14, 2026
13	Dynamarine	Partial evidence	Glyfada, GreeceHQ checked Sep 14, 2026	11-50	23 contacts →
	Partial evidence “Dynamarine is a company that provides consultancy services to the maritime community associated with technical studies, statutory compliance issues, condition surveys and risk…” Source: RevenueBase Database · checked Sep 14, 2026
14	Edit Automation LTD	Indirect evidence	Piraeus, GreeceHQ checked Sep 14, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
15	Margetis Maritime	Partial evidence	Piraeus, GreeceHQ checked Sep 14, 2026	11-50	22 contacts →
	Partial evidence “Our vision is to be next to our marine clients 24/7, all over the world, providing a full range of services necessary to international maritime institutions and investors…” Source: RevenueBase Database · checked Sep 14, 2026
16	Oceanic Marine Services	Indirect evidence	Athens, GreeceHQ checked Sep 14, 2026	11-50	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
17	Resnovae Consultants	Indirect evidence	Iraklio Attikis, GreeceHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “ResNovae Consultants was founded in 2014 with a vision to simplify business operations, saving work hours to our client’s teams and revealing business opportunities for profitable…” Source: RevenueBase Database · checked Sep 14, 2026
18	Terra Neutral PC	Partial evidence	Athens, GreeceHQ checked Sep 14, 2026	11-50	15 contacts →
	Partial 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 14, 2026
19	Panmarine & Industrial Services LTD	Partial evidence	Piraeus, GreeceHQ checked Sep 14, 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 14, 2026
20	Anco Maritime Activities LTD	Partial evidence	Piraeus, GreeceHQ checked Sep 14, 2026	11-50	14 contacts →
	Partial evidence “ANCO Maritime Activates Ltd is a marine technical company offering management services and technical consultancy services to ship management companies.” Source: RevenueBase Database · checked Sep 14, 2026
21	Oikom LTD	Indirect evidence	Marousi, GreeceHQ checked Sep 14, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
22	United Overseas Management Hellas LTD	Partial evidence	Marousi, GreeceHQ checked Sep 14, 2026	11-50	13 contacts →
	Partial evidence “The Company is committed to provide world-class ship commercial management services that meet or exceed safety, environmental and customers’ requirements and to conduct its…” Source: RevenueBase Database · checked Sep 14, 2026
23	Abacus Marine Consultants	Indirect evidence	Paleo Faliro, GreeceHQ checked Sep 14, 2026	11-50	12 contacts →
	Indirect evidence “We are experienced drydocking and ship repair coordinators and trusted providers of high‑quality equipment supporting regulatory compliance, performance improvement, energy…” Source: RevenueBase Database · checked Sep 14, 2026
24	Helintec SA	Partial evidence	Palaión Fáliron, GreeceHQ checked Sep 14, 2026	11-50	12 contacts →
	Partial evidence “Helintec SA is an engineering company with activities extending over a range of software products, consultancy and technical services, mainly directed to the Marine Industry.” Source: RevenueBase Database · checked Sep 14, 2026
25	Argo Navis Engineers LTD	Partial evidence	Amaroúsion, GreeceHQ checked Sep 14, 2026	11-50	11 contacts →
	Partial evidence “ARGO NAVIS ENGINEERS was established in 2009 as a marine engineering and shipping consultancy firm.” Source: RevenueBase Database · checked Sep 14, 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: marine environmental consultancies. 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 marine environmental consultancies.
Partial evidence: Its own public description names part of marine environmental consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine environmental consultancies. 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 226 marine environmental consultancies based in Greece

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Marine environmental consultancies based in Greece at a glance

As of Sep 14, 2026

31.6%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

20.8%Largest-city concentration · Athens

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

117

11-50

51-200

201-500

501-1,000

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 226 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 marine environmental consultancies, 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 “marine environmental consultancies”. 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 marine environmental consultancies), 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 marine environmental consultancies, 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, 636 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 14, 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.

Marine environmental consultancies by metro

Marine environmental consultancies in Athens47
Marine environmental consultancies in Piraeus40

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 marine environmental consultancies, 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 marine environmental consultancies are there based in Greece?

RevenueBase identified 226 marine environmental consultancies 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?

Kyklades Maritime Corporation, headquartered in Piraeus, tops this list with the largest team on record.

Which city has the most marine environmental consultancies?

Athens leads with 47 headquartered companies, followed by Piraeus (40) and Attica (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 636 verified decision-maker contacts tracked across these 226 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 14, 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.