Company lists · Data refreshed September 2026
Top 25 Energy sector IT consultants based in Greece
RevenueBase identified 186 energy sector IT consultants headquartered in Greece as of September 2026 and tracks 3,490 professional contacts across them, including 1,555 with verified work emails. Athens is the largest hub.
This list covers energy sector IT consultants 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.
The 25 largest energy sector IT consultants based in Greece
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,171 contacts → | ||||
Indirect evidence “Η Accenture είναι ηγέτιδα εταιρεία παροχής συμβουλευτικών υπηρεσιών σε παγκόσμιο επίπεδο, δημιουργώντας απτή αξία με ταχύτητα και σε μεγάλη κλίμακα.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 285 contacts → | ||||
Partial evidence “Real Consulting, is one of the leading consulting and implementation of integrated IT projects companies in Greece.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 227 contacts → | ||||
Indirect evidence “Performance Technologies is a trusted partner for organizations redefining themselves through digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 202 contacts → | ||||
Indirect evidence “Cosmos Business Systems is a leading Greek company that specializies in Information Technology and Telecommunications.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 153 contacts → | ||||
Indirect evidence “Η «Σαμαράς & Συνεργάτες Α.Ε- Σύμβουλοι Μηχανικοί» αποτελεί, σήμερα, τη μεγαλύτερη και αρτιότερα στελεχωμένη μελετητική και συμβουλευτική εταιρεία στην Ελλάδα.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 102 contacts → | ||||
Partial evidence “PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 89 contacts → | ||||
Partial evidence “Paralos Energy specialises in the design, construction, commissioning, operation and maintenance of energy projects.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 81 contacts → | ||||
Indirect evidence “ITMC S.A.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 79 contacts → | ||||
Partial evidence “SYNTAX is a software, consulting, onsite & outsource IT services pioneer, operating from its Athens headquarters in Greece & EU, and in the Arabian Gulf from its affiliates SYNTAX…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 59 contacts → | ||||
Partial evidence “With over 30 years of presence in the market, Globalsat Group has been a pioneer in the fields of technology and sustainable energy, offering comprehensive solutions that empower…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 46 contacts → | ||||
Indirect 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 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 38 contacts → | ||||
Indirect evidence “MGK Tech is an engineering firm specialized in Engineering, Procurement, Construction, Commissioning and O&M Services for Electrical Substations, Conventional and Renewable Power…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 35 contacts → | ||||
Indirect evidence “Data Noesis follows a market-oriented approach in order to drive each customer in a digital transformation journey, with innovative solutions and professional services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 30 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “Our company's structure is based on a modern and flexible model ensuring adaptation in running developments but also in continuous requirements and needs of our clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Indirect evidence “Technology - Consulting - Communication” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 21 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 19 contacts → | ||||
Partial evidence “Binary Tree was founded by professionals with notable presence in the Greek Information Technology scene, with the purpose of providing solutions to IT implementation and IT…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Strong evidence “Zita Telecoms is one of the fastest growing Greek companies in the field of marketing and sales in the energy sector since 2008.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 16 contacts → | ||||
Partial evidence “Accutech is a state-of-the-art, customer-centric IT, digital transformation and advanced solutions company based in Athens, Greece, operating in Europe and Greece and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Indirect evidence “Gecko Power Solutions is an engineering and consulting company specialized in Power Grids, HV & MV Substations, Power Generation and Industry projects.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “ESTIA Consulting and Engineering - based in Thessaloniki - is active on development, licensing and engineering of RES projects.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Indirect evidence “AlphaCons is a consulting firm focusing on Technology.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 sector IT consultants. 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 sector IT consultants.
- Partial evidence
- Its own public description names part of energy sector IT consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy sector IT consultants. 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 186 energy sector IT consultants based in Greece
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Energy sector IT consultants based in Greece at a glance
As of Sep 28, 2026Companies by employee count
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 186 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 sector IT consultants, 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 sector IT consultants”. 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 sector IT consultants), 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 sector IT consultants, 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, 1,555 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.
Energy sector IT consultants by metro
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 sector IT consultants, 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 sector IT consultants are there based in Greece?
RevenueBase identified 186 energy sector IT consultants 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?
Accenture Greece, headquartered in Athens, tops this list with the largest team on record.
Which city has the most energy sector IT consultants?
Athens leads with 40 headquartered companies, followed by Marousi (7) and Thessaloniki (4).
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 1,555 verified decision-maker contacts tracked across these 186 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.
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