Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Hungary

RevenueBase identified 128 energy infrastructure consulting firms headquartered in Hungary as of September 2026 and tracks 701 professional contacts across them, including 222 with verified work emails. Budapest is the largest hub.

This list covers energy infrastructure consulting firms headquartered in Hungary, 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 21, 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 21, 2026 86% judged on-target in blind review
128Companies
701Contacts tracked
222Verified emails
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The 25 largest energy infrastructure consulting firms based in Hungary

Ranked by team size
Top 25 of 128 energy infrastructure consulting firms based in Hungary, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure 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 evidenceBudapest, HungaryHQ checked Sep 21, 202651-20048 contacts →

Indirect evidence

“OLAJTERV Engineering Co.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceBudapest, HungaryHQ checked Sep 21, 202651-20043 contacts →

Partial evidence

“For 25 years, the name of VPP has been synonymous with innovative and environmentally conscious energy solutions.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceBudaörs, HungaryHQ checked Sep 21, 2026201-50041 contacts →

Indirect evidence

“A Forest-Vill Kft.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceBudapest, HungaryHQ checked Sep 21, 202611-5030 contacts →

Partial evidence

“Az AXING 2003 óta meghatározó szereplője a magyar energetikai tanácsadási piacnak.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

“A cégünk neve nem csak egy jól hangzó szlogen, hanem az alapelvünk és hitvallásunk is egyben, amit 2019-ben Üzleti Etikai díjjal is elismertek.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceBudapest, HungaryHQ checked Sep 21, 202611-5017 contacts →

Partial evidence

“A Regionális Energiagazdasági Kutatóközpont (REKK) célja, hogy szakértelmével hozzájáruljon az üzleti és környezeti szempontból is fenntartható energiapiacok létrejöttéhez.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceBudapest, HungaryHQ checked Sep 21, 202611-5016 contacts →

Partial evidence

“Napelemes kiserőművek és energiatároló rendszerek engedélyes és kiviteli tervezése Megújuló energetikai beruházásokhoz kapcsolódó projektfejlesztés és mérnök-menedzsment…”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceTörökbálint, HungaryHQ checked Sep 21, 202651-20015 contacts →

Partial evidence

“From energy production through to transport, transformation, distribution and consumption, Omexom covers the entire value chain for the electricity industry.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-5014 contacts →

Indirect evidence

“Arctic Green Engineering Services Ltd (former Mannvit Kft) is an international consultancy firm in the fields of engineering, technical services and innovation.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-5014 contacts →

Indirect evidence

“Green Geo is a dynamically developing, Hungarian-owned company.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceBudapest, HungaryHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“PANDA energiamenedzsment szoftver - Nagyvállalati energia audit - Energetikai szakreferens - Energetikai beruházások TAO kedvezménye - Energetikai tanúsítvány Teljes körű…”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“Közel 10 éves tapasztalattal az Enco Europe Kft.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceBudapest, HungaryHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

“The mission of Plant industrial Engineering, Kft.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidenceVértesboglár, HungaryHQ checked Sep 21, 20261-108 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202651-2008 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceBudapest, HungaryHQ checked Sep 21, 20261-107 contacts →

Partial evidence

“MN6 Energy Agency offers energy management services that provides a systematic and transparent manner to handle all your company’s energy related questions – in order to decrease…”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceBudapest, HungaryHQ checked Sep 21, 20261-106 contacts →

Partial evidence

“Biztosítjuk vállalatok és ingatlanok teljes körű energetikai megfelelését, kiemelt fókusszal az energetikai szakreferens és audit szolgáltatásra és a hiteles energetikai…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceBudapest, HungaryHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceBudapest, HungaryHQ checked Sep 21, 202611-504 contacts →

Indirect evidence

“Tevékenységi körünk meghatározó eleme a megújulóenergiákkal, kiemelten a napelem-parkokkal kapcsolatos tanácsadói, tervezői, kivitelezői, beruházás finanszírozási és üzemeltetési…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceBudapest, HungaryHQ checked Sep 21, 20261-104 contacts →

Partial evidence

“We believe the transition to a sustainable energy system is inevitable for the future of humanity in the long run.”

Source: RevenueBase Database · checked Sep 21, 2026
23Partial evidenceBudapest, HungaryHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“ZENRG is a boutique management consulting firm operating in the CEE region.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceTörökbálint, HungaryHQ checked Sep 21, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
25Partial evidenceBudapest, HungaryHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“A Free Sun Energy egy független, teljes körű, megújuló energiával kapcsolatos megoldásokat közvetítő tanácsadó cég.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 128 energy infrastructure consulting firms based in Hungary

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Energy infrastructure consulting firms based in Hungary at a glance

As of Sep 21, 2026
31.7%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
41.4%Largest-city concentration · Budapest
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
78
11-50
38
51-200
11
201-500
1

Email recency for this list is measured worldwide rather than for Hungary, so it is reported there. Company counts and contact totals on this page are exact for Hungary, over 128 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 infrastructure 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 Hungary whose own description of what they do matches “energy infrastructure 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 energy infrastructure 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 energy infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Hungary 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, 222 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 21, 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 infrastructure consulting firms by metro

  • Energy infrastructure consulting firms in Budapest53

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 infrastructure 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 energy infrastructure consulting firms are there based in Hungary?

RevenueBase identified 128 energy infrastructure consulting firms headquartered in Hungary 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?

Olajterv Engineering Co. LTD, headquartered in Hungary, tops this list with the largest team on record.

Which city has the most energy infrastructure consulting firms?

Budapest leads with 53 headquartered companies, followed by Budaors (5) and Debrecen (2).

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 222 verified decision-maker contacts tracked across these 128 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 21, 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.