Company lists · Data refreshed November 2026

Top 15 Utility infrastructure services based in Greece

RevenueBase identified 44 company matches for utility infrastructure services associated with Greece as of November 2026 and tracks 2,181 professional contacts across them, including 682 with verified work emails. Athens is the largest hub.

This list covers company matches for utility infrastructure services associated with Greece, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
44Companies
2,181Contacts tracked
682Verified emails
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The 15 largest utility infrastructure services based in Greece

Ranked by team size
Top 15 of 44 company matches for utility infrastructure services based in Greece, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAthens, GreeceHQ recorded Nov 6, 20261,001-5,000860 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAthens, GreeceHQ recorded Nov 6, 20261,001-5,000564 contacts →

Exact match

“Athens Water Supply & Sewerage Company S.A.(EYDAP) is the largest Greek company in the water supply, sewerage and waste water treatment sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchChalandri, GreeceHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAthens, GreeceHQ recorded Nov 6, 2026201-500114 contacts →

Exact match

“Engineering, Constructing, Consulting and Operating company of Environmantal projects and Plants, related to Water, Waste Water, Solid Waste and Energy from Renewable sources.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchThessaloniki, GreeceHQ recorded Nov 6, 2026201-500111 contacts →

Exact match

“Thessaloniki Water Supply & Sewerage Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGreeceHQ recorded Nov 6, 20261,001-5,00083 contacts →

Exact match

“AKTOR, member of Intrakat Group, is established as a leading international infrastructure company with operations in 14 countries, providing a wide range of highly diversified…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLykovrysi, GreeceHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“MGK Tech is an engineering firm specialized in Engineering, Procurement, Construction, Commissioning and O&M Services for Electrical Substations, Conventional and Renewable Power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAgios Dimitrios, GreeceHQ recorded Nov 6, 202651-20026 contacts →

Exact match

“Powering tomorrow's infrastructure through engineering excellence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAigaleo, GreeceHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“ATEKE is a dynamic and highly specialized construction and engineering company based in Athens, Greece, with a strong legacy of delivering complex infrastructure, energy, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAthens, GreeceHQ recorded Nov 6, 202611-5014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAthens, GreeceHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“Envitec SA is a well-established Technical & Environmental Projects company, based in Athens, acting as a major contractor, providing solutions and services for Environmental…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAcharnai, GreeceHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“We cover every aspect of electrical applications in the field of Industry, Renewable Energy Sources (RES) & Infrastructure, on substations of Medium & High Voltage, providing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchΧαλάνδρι, GreeceHQ recorded Nov 6, 20261-109 contacts →

Exact match

“GSK Construction covers a wide range of services in the engineering and construction sector for both industries and individuals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTrikala Greece, GreeceHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“OSP Contractors is a rapidly growing telecom infrastructure company delivering design, implementation and maintenance services for fixed telecom networks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKifisiá, GreeceHQ recorded Nov 6, 202611-504 contacts →

Exact match

“The Company trading under the name “Attiki Diodos S.A.”, was founded in August 1993 by Nikolaos Thanasoulas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 15 of 44 utility infrastructure services based in Greece

See the full list, filter by size, metro and specialty, and access 682 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Utility infrastructure services based in Greece at a glance

As of Nov 6, 2026
31.3%Verified-email coverage
49.6Average contacts per company
11-50Median size (employees)
25.0%Largest-city concentration · Athens
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
7
11-50
15
51-200
14
201-500
5
1,001-5,000
3

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 44 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Greece whose business descriptions match “utility infrastructure services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 682 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “utility infrastructure services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many utility infrastructure services are there based in Greece?

RevenueBase identified 44 company matches for utility infrastructure services associated with Greece as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Terna S.A tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most utility infrastructure services?

Athens leads with 11 company records, followed by Thessaloniki (3) and Kozani (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 682 professional contacts with verified work emails tracked across these 44 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.