Company lists · Data refreshed September 2026

Top 25 IT security companies based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 199 companies tracked

RevenueBase identified 199 IT security companies headquartered in Switzerland as of September 2026 and tracks 2,038 professional contacts across them, including 882 with verified work emails and 46 with mobile numbers. Zurich is the largest hub.

This list covers IT security companies headquartered in Switzerland, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

199Companies

2,038Contacts tracked

882Verified emails

46Mobile numbers

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The 25 largest IT security companies based in Switzerland

Ranked by team size

Top 25 of 199 IT security companies based in Switzerland, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to IT security companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sits Group	Strong evidence	Wettingen, SwitzerlandHQ checked Sep 4, 2026	501-1,000	268 contacts →
	Strong evidence “As a leading IT security enterprise, the SITS Group stands for end-to-end security.” Source: RevenueBase Database · checked Sep 4, 2026
2	Swiss Post Cybersecurity	Partial evidence	Aarau, SwitzerlandHQ checked Sep 4, 2026	51-200	101 contacts →
	Partial evidence “Swiss Post Cybersecurity AG offers security solutions to protect digital assets and confidential data of organizations and helps to meet the increasing security requirements.” Source: RevenueBase Database · checked Sep 4, 2026
3	Avantec	Strong evidence	Zurich, SwitzerlandHQ checked Sep 4, 2026	51-200	77 contacts →
	Strong evidence “AVANTEC steht seit über 20 Jahren für höchste IT-Security-Kompetenz.” Source: RevenueBase Database · checked Sep 4, 2026
4	Redguard	Partial evidence	Bern, SwitzerlandHQ checked Sep 4, 2026	51-200	73 contacts →
	Partial evidence “Redguard is a company specialized in information security and cyber security with headquarters in Bern, Zurich and Neuchâtel.” Source: RevenueBase Database · checked Sep 4, 2026
5	Kyos SA	Strong evidence	Genève, SwitzerlandHQ checked Sep 4, 2026	51-200	67 contacts →
	Strong evidence “Kyos specializes in the fields of security, networks, and IT services.” Source: RevenueBase Database · checked Sep 4, 2026
6	Basevision AG	Indirect evidence	Olten, SwitzerlandHQ checked Sep 4, 2026	51-200	67 contacts →
	Indirect evidence “We protect organizations from evolving cyber threats, empowering them to operate securely and confidently in an increasingly complex digital world.” Source: RevenueBase Database · checked Sep 4, 2026
7	Oneconsult	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 4, 2026	51-200	63 contacts →
	Indirect evidence “Oneconsult has been your Swiss cybersecurity services partner since 2003 and operates independently of any particular products or manufacturers.” Source: RevenueBase Database · checked Sep 4, 2026
8	Compass Security	Strong evidence	Rapperswil, SwitzerlandHQ checked Sep 4, 2026	51-200	59 contacts →
	Strong evidence “Compass Security specializes in offensive and defensive IT security.” Source: RevenueBase Database · checked Sep 4, 2026
9	First Frame Networkers AG	Partial evidence	Baar, SwitzerlandHQ checked Sep 4, 2026	51-200	57 contacts →
	Partial evidence “Unsere Leidenschaft für IT-Services zeigt sich immer und überall: Egal ob wir Ihre Endgeräte vor Fremdzugriffen schützen, Cyberangriffe für Sie abwehren oder Sie Ihre gesamte IT…” Source: RevenueBase Database · checked Sep 4, 2026
10	United Security Providers	Strong evidence	Bern, SwitzerlandHQ checked Sep 4, 2026	51-200	56 contacts →
	Strong evidence “IHR VERTRAUENSVOLLER CYBERSECURITY PARTNER Schutz und Sicherheit ohne Kompromisse Als Security Spezialist und führender Anbieter von IT-Sicherheitslösungen bieten wir mit höchstem…” Source: RevenueBase Database · checked Sep 4, 2026
11	E-Xpert Solutions SA	Partial evidence	Geneva / Plan Les Ouates, SwitzerlandHQ checked Sep 4, 2026	51-200	52 contacts →
	Partial evidence “As a company specialized in the Information Security field since 2001, our skills are strong technical expertise, engineering, health monitoring of devices and the development of…” Source: RevenueBase Database · checked Sep 4, 2026
12	Sphynx	Indirect evidence	Zug, SwitzerlandHQ checked Sep 4, 2026	11-50	52 contacts →
	Indirect evidence “SPHYNX offers products and solutions, and consulting services, in the areas of cyber intelligence, analytics, incident response, assurance, and certification.” Source: RevenueBase Database · checked Sep 4, 2026
13	Scrt NOW Orange Cyberdefense	Indirect evidence	Morges, SwitzerlandHQ checked Sep 4, 2026	51-200	45 contacts →
	Indirect evidence “The Swiss companies, SCRT and Telsys, acquired by Orange Cyberdefense in 2022, are rebranded to Orange Cyberdefense Switzerland The move reinforces Orange Cyberdefense's ambition…” Source: RevenueBase Database · checked Sep 4, 2026
14	Seculabs SA	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 4, 2026	11-50	43 contacts →
	Indirect evidence “SecuLabs SA est une société Suisse de sécurité informatique qui accompagne ses clients en garantissant une expertise de haut niveau.” Source: RevenueBase Database · checked Sep 4, 2026
15	Swiss Infosec AG	Indirect evidence	Sursee, SwitzerlandHQ checked Sep 4, 2026	51-200	37 contacts →
	Indirect evidence “Seit 1989 befassen wir uns professionell mit allem rund um die Sicherheit von Informationen.” Source: RevenueBase Database · checked Sep 4, 2026
16	Citadelo	Indirect evidence	SwitzerlandHQ checked Sep 4, 2026	11-50	34 contacts →
	Indirect evidence “Citadelo was founded by ethical hackers to help companies identify vulnerabilities through simulated attacks.” Source: RevenueBase Database · checked Sep 4, 2026
17	E-Secure	Indirect evidence	Le Grand-saconnex, SwitzerlandHQ checked Sep 4, 2026	11-50	32 contacts →
	Indirect evidence “Est une entreprise basée à Genève spécialisée dans le domaine de la sécurité informatique et des réseaux depuis l’an Elle compte un effectif de 28 personnes composé de deux…” Source: RevenueBase Database · checked Sep 4, 2026
18	Elcasecurity	Indirect evidence	Lausanne, SwitzerlandHQ checked Sep 4, 2026	201-500	32 contacts →
	Indirect evidence “Your all-in-one partner to secure your business.” Source: RevenueBase Database · checked Sep 4, 2026
19	IT District	Strong evidence	Hünenberg, SwitzerlandHQ checked Sep 4, 2026	11-50	29 contacts →
	Strong evidence “SMART SOLUTIONS FOR IT SECURITY For a safer today - for a stronger tomorrow” Source: RevenueBase Database · checked Sep 4, 2026
20	Asperiq	Indirect evidence	Baar, SwitzerlandHQ checked Sep 4, 2026	51-200	29 contacts →
	Indirect evidence “Asperiq develops, integrates and maintains cyber protection solutions for governments, NGOs and critical infrastructure organisations.” Source: RevenueBase Database · checked Sep 4, 2026
21	Selution AG	Indirect evidence	Münchenstein, SwitzerlandHQ checked Sep 4, 2026	11-50	27 contacts →
	Indirect evidence “Wir von Selution haben es uns zur Aufgabe gemacht, Unternehmen in verschiedenen Branchen dabei zu helfen, mithilfe von modernsten Informations- und Kommunikationslösungen die…” Source: RevenueBase Database · checked Sep 4, 2026
22	Omicron AG	Strong evidence	Wallisellen, SwitzerlandHQ checked Sep 4, 2026	11-50	27 contacts →
	Strong evidence “OMICRON AG - IHR PARTNER FÜR IT SECURITY & NETZWERKLÖSUNGEN Seit 1995 sind wir auf IT Sicherheits- und Netzwerklösungen für Firmen spezialisiert und decken alle Bedürfnisse von…” Source: RevenueBase Database · checked Sep 4, 2026
23	Cybersec Services	Partial evidence	Stabio, SwitzerlandHQ checked Sep 4, 2026	11-50	26 contacts →
	Partial evidence “CyberSec Services nasce con la precisa volontà di diventare il partner di riferimento nell'ambito della Cyber Security per le Piccole e Medie Imprese, supportandole nella…” Source: RevenueBase Database · checked Sep 4, 2026
24	Eb-Qual SA	Partial evidence	Givisiez, SwitzerlandHQ checked Sep 4, 2026	11-50	20 contacts →
	Partial evidence “eb-Qual is a specialist that provides ICT security and network services in Switzerland’s public and private sectors.” Source: RevenueBase Database · checked Sep 4, 2026
25	Clue Security Services AG	Strong evidence	Baar, SwitzerlandHQ checked Sep 4, 2026	11-50	18 contacts →
	Strong evidence “Clue ensures the uncomplicated and secure operation and continuous assessment of the security level of your IT infrastructure.” Source: RevenueBase Database · checked Sep 4, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names IT security companies.
Partial evidence: Its own public description names part of IT security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 199 IT security companies based in Switzerland

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IT security companies based in Switzerland at a glance

As of Sep 4, 2026

43.3%Verified-email coverage

2.3%Mobile-number coverage

10.2Average contacts per company

1-10Median size (employees)

13.6%Largest-city concentration · Zurich

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

127

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

7731–60

48861–90

31590–180

2180+

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 IT security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Switzerland whose own description of what they do matches “IT security companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among IT security companies, and records with no verified work email. Companies headquartered outside Switzerland 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 its RevenueBase Smart Search 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, 882 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 4, 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many IT security companies are there based in Switzerland?

RevenueBase identified 199 IT security companies headquartered in Switzerland 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?

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

Which city has the most IT security companies?

Zurich leads with 27 headquartered companies, followed by Zug (11) and Geneva (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 882 verified decision-maker contacts tracked across these 199 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 4, 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 Smart Search, 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.