Company lists · Data refreshed September 2026

Top 25 Renewable energy software companies based in Hungary

Name: Renewable energy software companies based in Hungary
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 111 companies tracked

RevenueBase identified 111 renewable energy software companies headquartered in Hungary as of September 2026 and tracks 920 professional contacts across them, including 395 with verified work emails and 32 with mobile numbers. Budapest is the largest hub.

This list covers renewable energy software companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

111Companies

920Contacts tracked

395Verified emails

32Mobile numbers

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The 25 largest renewable energy software companies based in Hungary

Ranked by team size

Top 25 of 111 renewable energy software companies based in Hungary, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	ALTEOPartial evidence	Budapest, HungaryHQ checked Sep 5, 2026	501-1,000	168
	“A tőzsdén jegyzett, nemzetközi ESG-minősítéssel rendelkező ALTEO az energiaipar és a körforgásos gazdaság jövőorientált vállalata, amely a zöld átállás támogatására kínál okos…” Source: company website · checked Sep 5, 2026
2	NavitasoftStrong evidence	Budapest, HungaryHQ checked Sep 5, 2026	51-200	56
	“Navitasoft provides energy business software solutions for liberalized electricity & gas market players, including transmission system operators, storage system operators, energy…” Source: company website · checked Sep 5, 2026
3	VPP Energy GroupPartial evidence	Budapest, HungaryHQ checked Sep 5, 2026	51-200	43
	“For 25 years, the name of VPP has been synonymous with innovative and environmentally conscious energy solutions.” Source: company website · checked Sep 5, 2026
4	Solservices KFTIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	35
	Source: company website · checked Sep 5, 2026
5	CMC EuropeIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	34
	“Established in 1950 and headquartered by Genertec International, China National Machinery Imp.” Source: company website · checked Sep 5, 2026
6	Wagner Solar Hungária KFTPartial evidence	Gödöllő, HungaryHQ checked Sep 5, 2026	51-200	29
	“Wagner Solar – Megbízható partner a megújuló energiában 2002 óta A Wagner Solar Hungária Kft.” Source: company website · checked Sep 5, 2026
7	PV NapenergiaPartial evidence	Miskolc, HungaryHQ checked Sep 5, 2026	11-50	27
	“Új energiát adunk Neked!” Source: company website · checked Sep 5, 2026
8	STS GroupStrong evidence	Győr, HungaryHQ checked Sep 5, 2026	11-50	27
	“Founded in 2002, STS Group is a leading electrical design and construction company dedicated to the advancement of renewable energies.” Source: company website · checked Sep 5, 2026
9	Tiszta Energiák KFTIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	25
	“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: company website · checked Sep 5, 2026
10	Greenergy HoldingStrong evidence	Budapest, HungaryHQ checked Sep 5, 2026	51-200	19
	“Greenergy is an energy service company specializing in small-scale combined heat and power plants and renewable energy projects.” Source: company website · checked Sep 5, 2026
11	Pannonwatt ZRTIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	18
	Source: company website · checked Sep 5, 2026
12	SpreadmonitorIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	17
	“Spreadmonitor ltd.” Source: company website · checked Sep 5, 2026
13	Kks-EnergyPartial evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	16
	“Napelemes kiserőművek és energiatároló rendszerek engedélyes és kiviteli tervezése Megújuló energetikai beruházásokhoz kapcsolódó projektfejlesztés és mérnök-menedzsment…” Source: company website · checked Sep 5, 2026
14	Green GEOIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	14
	“Green Geo is a dynamically developing, Hungarian-owned company.” Source: company website · checked Sep 5, 2026
15	Green Plan Energy KFTStrong evidence	Kazincbarcika, HungaryHQ checked Sep 5, 2026	51-200	13
	“ABOUT US Technology for the Future At Green Plan Energy Ltd, our primary focus is designing and installing devices that harness alternative, renewable energy sources.” Source: company website · checked Sep 5, 2026
16	A1 Solar KFTPartial evidence	Budapest, HungaryHQ checked Sep 5, 2026	51-200	12
	“Az A1 Solar név az innováció, az energia és a fenntarthatóság összefonódását szimbolizálja, és azt a vállalati kultúrát tükrözi, amelynek középpontjában az ügyfelek elégedettsége…” Source: company website · checked Sep 5, 2026
17	VoltrackStrong evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	10
	“Hungarian-owned energy company active in the field of renewable energy production (biogas, solar) and balancing.” Source: company website · checked Sep 5, 2026
18	Gershoj Energia KFTIndirect evidence	Tata, HungaryHQ checked Sep 5, 2026	11-50	8
	“Solar Power PV and battery systems with focus on environmental and financial advantages.” Source: company website · checked Sep 5, 2026
19	Yuxta Hungary KFTPartial evidence	7, HungaryHQ checked Sep 5, 2026	1-10	7
	“A hazai piac meghatározó szereplőjeként a piac igényeihez igazodva javaslunk megoldást a megújuló energia, az energiahatékonyság, az e-mobilitás és az okos mérések terén.” Source: company website · checked Sep 5, 2026
20	Rena SolarIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	51-200	6
	“At RENA Solar, our goal is to build high quality and cost effective residential, industrial and large-scale solar systems.” Source: company website · checked Sep 5, 2026
21	Pearl Enterprises KFTIndirect evidence	Debrecen, HungaryHQ checked Sep 5, 2026	11-50	6
	Source: company website · checked Sep 5, 2026
22	Peka Solar KFTIndirect evidence	Miskolc, HungaryHQ checked Sep 5, 2026	11-50	6
	“PEKA SOLAR LTD Our Mother company PEKA BAU LTD was founded in and seing the market demands in 2023 PEKA SOLAR was established.” Source: company website · checked Sep 5, 2026
23	Solar Markt CsoportPartial evidence	Budapest, HungaryHQ checked Sep 5, 2026	1-10	5
	“Solar Markt is a leading, independent green energy platform company in East Central Europe and a strategic partner of E.” Source: company website · checked Sep 5, 2026
24	Energy Hungary ZRTIndirect evidence	Budapest, HungaryHQ checked Sep 5, 2026	11-50	4
	“Tevékenységi körünk meghatározó eleme a megújulóenergiákkal, kiemelten a napelem-parkokkal kapcsolatos tanácsadói, tervezői, kivitelezői, beruházás finanszírozási és üzemeltetési…” Source: company website · checked Sep 5, 2026
25	InersolPartial evidence	Dunakeszi, HungaryHQ checked Sep 5, 2026	11-50	4
	“Az innovatív energetikai megoldásokkal foglalkozó vállalkozásunk elődjét 2002-ben alapítottuk.” Source: company website · checked Sep 5, 2026

Showing 25 of 111 renewable energy software companies based in Hungary

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Renewable energy software companies based in Hungary at a glance

As of Sep 5, 2026

11-50Median size (employees)

BudapestLargest hub · 34 HQs

32Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Verified emails by last verification

0–30

375

31–60

61–90

90–180

180+

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 renewable energy software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Hungary whose own description of what they do matches “renewable energy software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among renewable energy software companies, 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 an evidence 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, 395 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 5, 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.

Renewable energy software companies by metro

Renewable energy software companies in Budapest34

Frequently asked

How many renewable energy software companies are there based in Hungary?

RevenueBase identified 111 renewable energy software companies 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?

ALTEO, headquartered in Hungary, tops this list with the largest team on record.

Which city has the most renewable energy software companies?

Budapest leads with 34 headquartered companies, followed by Debrecen (4) and Miskolc (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 395 verified decision-maker contacts tracked across these 111 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 5, 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.