Company lists · Data verified August 2026

Top 25 Api security companies based in Germany

Name: Api security companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 143 companies tracked

There are 143 api security companies headquartered in Germany (RevenueBase, August 2026). RevenueBase tracks 2,016 professional contacts across them, including 860 with verified work emails and 30 with mobile numbers. Berlin is the largest hub.

This list covers api security companies 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.

143Companies

2,016Contacts tracked

860Verified emails

30Mobile numbers

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The 25 largest api security companies based in Germany

Ranked by team size

Top 25 of 143 api security companies 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	G Data Cyberdefense	Bochum	501-1,000	389	154
2	Telekom Security	Bonn	1,001-5,000	360	183
3	USD AG	Neu-Isenburg	51-200	131	92
4	R-Tec IT Security Gmbh	Wuppertal	51-200	83	47
5	Syss Gmbh	Frankfurt	51-200	70	6
6	Ditis Systeme	Heidenheim An Der Brenz	51-200	68	37
7	Blaze Information Security	Berlin	51-200	51	30
8	Prosec Gmbh	Munchen	51-200	49	29
9	Hvs-Consulting	Garching	51-200	46	27
10	Forenova Technologies Gmbh	Nuremberg	51-200	45	13
11	Communication Systems Gmbh	Neu-Isenburg	51-200	36	21
12	Enbw Cyber Security Gmbh	Karlsruhe	11-50	22	13
13	Smart Cyber Security Gmbh	Augsburg	11-50	22	12
14	Sedevo IT Consulting Gmbh	Bergisch Gladbach	11-50	21	8
15	Saporo	Munich	11-50	20	15
16	OAK Security	Munich	11-50	19	9
17	Schönbrunn Tasc Gmbh	Leonberg	11-50	18	7
18	Cyber Samurai Gmbh	Vaterstetten	11-50	16	10
19	Protea Networks Gmbh	Unterhaching	11-50	16	8
20	Securnite Gmbh	Dusseldorf	11-50	13	9
21	Artada Gmbh	Werl	11-50	13	8
22	Digitevo Gmbh	Wettenberg	11-50	13	7
23	L3montree Cybersecurity Gmbh	Bonn	11-50	13	1
24	Greenhats Gmbh	Weimar Lahn	11-50	11	3
25	Trust2protect Gmbh	Hilchenbach	11-50	10	7

Showing 25 of 143 api security companies based in Germany

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Api security companies based in Germany at a glance

As of Aug 28, 2026

1-10Median size (employees)

BerlinLargest hub · 21 HQs

30Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Api security companies by metro

Metro	Companies
Api security companies in Berlin	21
Api security companies in Munich	9
Api security companies in Hamburg	6
Api security companies in Frankfurt	5
Api security companies in Munchen	5
Api security companies in Bochum	4
Api security companies in Erfurt	4
Api security companies in Dusseldorf	4

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 “api security companies”, 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; 5 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 api security companies are there based in Germany?

There are 143 api security companies headquartered in Germany as of August 2026 (RevenueBase).

What is the largest company on this list?

G Data Cyberdefense, headquartered in Bochum, tops this list with the largest team on record.

Which city has the most api security companies?

Berlin leads with 21 headquartered companies, followed by Munich (9) and Hamburg (6).

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 860 verified decision-maker contacts tracked across these 143 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.