Company lists · Data verified August 2026

Top 25 Energy efficiency program software based in Germany

Name: Energy efficiency program software based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 322 companies tracked

There are 322 energy efficiency program software headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 4,849 professional contacts across them, including 2,062 with verified work emails and 199 with mobile numbers. Berlin is the largest hub.

This list covers energy efficiency program software headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

322Companies

4,849Contacts tracked

2,062Verified emails

199Mobile numbers

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The 25 largest energy efficiency program software based in Germany

Ranked by team size

Top 25 of 322 energy efficiency program software based in Germany, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	PSI Software	Berlin	1,001-5,000	443	207
2	Stem, INC	Berlin	501-1,000	432	245
3	Kisters Group	Aachen	501-1,000	363	1
4	Janitza Electronics Gmbh	Lahnau	501-1,000	264	194
5	Schleupen SE	Moers	501-1,000	253	132
6	Soptim AG	Aachen	201-500	211	127
7	TADO	Munchen	51-200	160	64
8	Advizeo	Berlin	51-200	148	111
9	Lynqtech	Hannover	51-200	89	57
10	Alfa Energy An Edison Energy Company	n/a	201-500	89	50
11	Ecoplanet	Munich	51-200	82	32
12	Green Fusion	Hohen Neuendorf	51-200	81	36
13	TANSO	Munich	51-200	67	10
14	Limón Gmbh	Kassel	51-200	55	36
15	Metiundo Gmbh	Berlin	51-200	55	30
16	Klafka & Hinz Energie-Informations-Systeme Gmbh	Aachen	51-200	55	26
17	Ökotec Energiemanagement Gmbh	Berlin	51-200	46	21
18	Enoplan Gmbh	Bruchsal	51-200	44	21
19	Betterspace Gmbh	Ilmenau	51-200	42	21
20	Seven2one Informationssysteme Gmbh	Karlsruhe	11-50	39	25
21	Consolinno Energy Gmbh	Regensburg	51-200	38	19
22	Metr Building Management Systems Gmbh	Berlin	11-50	37	21
23	Global Climate	Munchen	11-50	33	24
24	Ingsoft Gmbh	Nurnberg	51-200	30	14
25	Kühn Elektrotechnik Gmbh	Renchen	51-200	28	7

Showing 25 of 322 energy efficiency program software based in Germany

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Energy efficiency program software based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 33 HQs

199Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

168

11-50

107

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Energy efficiency program software by metro

Metro	Companies
Energy efficiency program software in Berlin	33
Energy efficiency program software in Stuttgart	11
Energy efficiency program software in Munich	10
Energy efficiency program software in Hamburg	10
Energy efficiency program software in Munchen	9
Energy efficiency program software in Nurnberg	8
Energy efficiency program software in Leipzig	7

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy efficiency program software”, with match quality audited by blind human judging, and headquartered in Germany.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy efficiency program software are there based in Germany?

There are 322 energy efficiency program software headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

PSI Software, headquartered in Berlin, tops this list with the largest team on record.

Which city has the most energy efficiency program software?

Berlin leads with 33 headquartered companies, followed by Stuttgart (11) and Munich (10).

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 2,062 verified decision-maker contacts tracked across these 322 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.