Company lists · Data refreshed September 2026

Top 12 Marine and aviation reinsurers based in Greece

RevenueBase identified 39 marine and aviation reinsurers headquartered in Greece as of September 2026 and tracks 363 professional contacts across them, including 170 with verified work emails. Athens is the largest hub.

This list covers marine and aviation reinsurers 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 17, 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 17, 2026 86% judged on-target in blind review
39Companies
363Contacts tracked
170Verified emails
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The 12 largest marine and aviation reinsurers based in Greece

Ranked by team size
Top 12 of 39 marine and aviation reinsurers based in Greece, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to marine and aviation reinsurers: 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 evidenceAthens, GreeceHQ checked Sep 17, 202611-5026 contacts →

Indirect evidence

“Τον Νοέμβριο του 1964 ιδρύεται η Ορίζων Ασφαλιστική, από τη συνεργασία του Χρήστου Γ.”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceAthens, GreeceHQ checked Sep 17, 202611-5014 contacts →

Indirect evidence

“Cromar Insurance Brokers SA is a respected insurance and reinsurance broker that offers customised risk management and insurance solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
3Indirect evidenceGlyfada, GreeceHQ checked Sep 17, 202611-505 contacts →

Indirect evidence

“Η δεσμεύεται στην παροχή υπηρεσιών υψηλού επιπέδου.”

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceAthens, GreeceHQ checked Sep 17, 20261-105 contacts →

Indirect evidence

“Hybrid Insurance and Reinsurance Brokers & Consultancy Services Ltd”, established in 2013 in order to provide reliable and cost effective insurance services to Agri-food, Chemical…”

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidencePiraeus, GreeceHQ checked Sep 17, 20261-104 contacts →

Partial evidence

Marine Insurance is a complex, yet clear insurance process that has been around in the Marine Industry nearly as long as ships have sailed our oceans.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidencePiraeus, GreeceHQ checked Sep 17, 20261-104 contacts →

Partial evidence

Marine Insurance Brokers and Claims Consultants in Piraeus.”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceAthens, GreeceHQ checked Sep 17, 202611-503 contacts →

Indirect evidence

“H επιτυχής και δημιουργική πορεία μας στον ασφαλιστικό χώρο οφείλεται στην τεχνογνωσία και στην συνέπεια που μας διακρίνουν, στην οργανωμένη δομή της εταιρίας μας, στην ικανότητα…”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceAthens, GreeceHQ checked Sep 17, 202611-503 contacts →

Indirect evidence

“Welcome at Star Group Insurance Services!”

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceMaroussi, GreeceHQ checked Sep 17, 20261-103 contacts →

Partial evidence

“Triple “A” Marine Risks Ltd is an independent insurance services provider, specializing in the provision of risk management solutions for the maritime industry.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceAthens, GreeceHQ checked Sep 17, 20261-102 contacts →

Indirect evidence

“Nova Mare Risks Services S.A.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceAthens, GreeceHQ checked Sep 17, 20261-102 contacts →

Partial evidence

“Flagship Group is an independent marine and non-marine broking house specializing in both insurance and reinsurance transactions.”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidencePiraeus, GreeceHQ checked Sep 17, 20261-102 contacts →

Partial evidence

“Welcome to SeaRock Marine Insurance Brokers, an independent marine insurance brokerage house for specialized marine risks.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 12 of 39 marine and aviation reinsurers based in Greece

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Marine and aviation reinsurers based in Greece at a glance

As of Sep 17, 2026
46.8%Verified-email coverage
9.3Average contacts per company
1-10Median size (employees)
35.9%Largest-city concentration · Athens
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
11
51-200
2
201-500
1

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 39 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 and aviation reinsurers, 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 and aviation reinsurers”. 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 and aviation reinsurers), 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 and aviation reinsurers, 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, 170 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 17, 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 marine and aviation reinsurers, 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 and aviation reinsurers are there based in Greece?

RevenueBase identified 39 marine and aviation reinsurers 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?

Οριζων 1964 Ασφαλιστικη Εταιρεια- Horizon 1964 Insurance Company, headquartered in Greece, tops this list with the largest team on record.

Which city has the most marine and aviation reinsurers?

Athens leads with 14 headquartered companies, followed by Piraeus (6) and Attiki (1).

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 170 verified decision-maker contacts tracked across these 39 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 17, 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.