Company lists · Data verified August 2026

Top 25 Cybersecurity for city infrastructure based in Germany

Name: Cybersecurity for city infrastructure based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 79 companies tracked

There are 79 cybersecurity for city infrastructure headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 1,983 professional contacts across them, including 652 with verified work emails and 22 with mobile numbers. Berlin is the largest hub.

This list covers cybersecurity for city infrastructure 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.

79Companies

1,983Contacts tracked

652Verified emails

22Mobile numbers

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The 25 largest cybersecurity for city infrastructure based in Germany

Ranked by team size

Top 25 of 79 cybersecurity for city infrastructure 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	Secunet Security Networks AG	Essen	1,001-5,000	620	59
2	G Data Cyberdefense	Bochum	501-1,000	389	154
3	Telekom Security	Bonn	1,001-5,000	360	183
4	R-Tec IT Security Gmbh	Wuppertal	51-200	83	47
5	Water IT Security & Defense	Dusseldorf	51-200	55	20
6	Prosec Gmbh	Munchen	51-200	49	29
7	BDO Cyber Security Gmbh	Dusseldorf	51-200	38	19
8	Ausecus Gmbh	Augsburg	11-50	31	20
9	Allgeier Cyris Gmbh	Bremen	51-200	27	14
10	Enbw Cyber Security Gmbh	Karlsruhe	11-50	22	13
11	Incyde	Leipzig	11-50	20	12
12	Cyber Samurai Gmbh	Vaterstetten	11-50	16	10
13	Keepbit	Augsburg	11-50	14	5
14	Umbrella Unternehmensberatung Gmbh	Berlin	11-50	11	7
15	Trust2protect Gmbh	Hilchenbach	11-50	10	7
16	Ujima Gmbh	Frankfurt Am Main	11-50	10	6
17	Turingpoint	Hamburg	11-50	9	8
18	Securance Gmbh	Dusseldorf	1-10	9	4
19	Eyedsec Cyber Security Gmbh	Bayreuth	11-50	8	1
20	Ikomm Gmbh	Furth	11-50	7	6
21	Terrera AG	Hannover	11-50	7	5
22	Is4it Kritis Gmbh	Obrigheim	11-50	7	4
23	Neonotu Cybersecurity	Hamburg	11-50	6	1
24	Layer 8 Consulting	Koln	1-10	5	2
25	Envience Gmbh	Ahrensburg	1-10	4	3

Showing 25 of 79 cybersecurity for city infrastructure based in Germany

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Cybersecurity for city infrastructure based in Germany at a glance

As of Aug 28, 2026

11-50Median size (employees)

BerlinLargest hub · 8 HQs

22Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Cybersecurity for city infrastructure by metro

Metro	Companies
Cybersecurity for city infrastructure in Berlin	8
Cybersecurity for city infrastructure in Hamburg	3
Cybersecurity for city infrastructure in Koln	3
Cybersecurity for city infrastructure in Munich	3
Cybersecurity for city infrastructure in Dusseldorf	3
Cybersecurity for city infrastructure in Bochum	3
Cybersecurity for city infrastructure in Frankfurt	3
Cybersecurity for city infrastructure in Leipzig	2

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 “cybersecurity for city infrastructure”, 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; 2 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 cybersecurity for city infrastructure are there based in Germany?

There are 79 cybersecurity for city infrastructure headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

Secunet Security Networks AG, headquartered in Essen, tops this list with the largest team on record.

Which city has the most cybersecurity for city infrastructure?

Berlin leads with 8 headquartered companies, followed by Hamburg (3) and Koln (3).

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 652 verified decision-maker contacts tracked across these 79 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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Cybersecurity for city infrastructure by geography

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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.