Company lists · Data verified August 2026

Top 25 Defense cybersecurity companies based in Switzerland

Name: Defense cybersecurity companies based in Switzerland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 90 companies tracked

There are 90 defense cybersecurity companies headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 1,160 professional contacts across them, including 432 with verified work emails and 18 with mobile numbers. Zurich is the largest hub.

This list covers defense cybersecurity companies headquartered in Switzerland, 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.

90Companies

1,160Contacts tracked

432Verified emails

18Mobile numbers

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The 25 largest defense cybersecurity companies based in Switzerland

Ranked by team size

Top 25 of 90 defense cybersecurity companies based in Switzerland, 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	Sits Group	Basel	501-1,000	268	34
2	Swiss Post Cybersecurity	Morges	51-200	101	38
3	Redguard	Bern	51-200	73	47
4	Basevision AG	Olten	51-200	67	45
5	Oneconsult	Bern	51-200	63	45
6	Compass Security	Zurich	51-200	59	33
7	United Security Providers	Zurich	51-200	56	29
8	E-Xpert Solutions SA	Plan Les Ouates	51-200	52	42
9	Sphynx	Zug	11-50	52	18
10	Elcasecurity	Lausanne	201-500	32	1
11	IT District	Hunenberg	11-50	29	19
12	Asperiq	Baar	51-200	29	2
13	Omicron AG	Bern	11-50	27	10
14	Gosecurity AG	Wiesendangen	11-50	14	8
15	Darkguard AG	Zug	11-50	13	7
16	Cybercon Gmbh	Rotkreuz	11-50	10	9
17	Brevit AG	Wetzikon	1-10	9	4
18	Teichmann International IT Solutions AG	Gallen	1-10	9	4
19	PI Squared Cybersecurity	Baar	1-10	7	2
20	Fortit AG	Zurich	11-50	6	3
21	CYSPA	Rotkreuz	11-50	5	4
22	Inter-Networking AG	Dietikon	11-50	5	2
23	Popp Schweiz AG	Gunzwil	1-10	4	2
24	Musaj Gmbh	Kloten	1-10	4	1
25	CYWAY	Horgen	1-10	3	2

Showing 25 of 90 defense cybersecurity companies based in Switzerland

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Defense cybersecurity companies based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 16 HQs

18Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Defense cybersecurity companies by metro

Metro	Companies
Defense cybersecurity companies in Zurich	16
Defense cybersecurity companies in Zug	10
Defense cybersecurity companies in Geneva	6
Defense cybersecurity companies in Bern	5
Defense cybersecurity companies in Lausanne	4
Defense cybersecurity companies in Lugano	4
Defense cybersecurity companies in Basel	3
Defense cybersecurity companies in Hunenberg	3

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 “defense cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Switzerland.
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 defense cybersecurity companies are there based in Switzerland?

There are 90 defense cybersecurity companies headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Sits Group, headquartered in Basel, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Zurich leads with 16 headquartered companies, followed by Zug (10) and Geneva (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 432 verified decision-maker contacts tracked across these 90 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.