Company lists · Data refreshed September 2026
Top 25 IT security consulting services based in Switzerland
RevenueBase identified 402 IT security consulting services headquartered in Switzerland as of September 2026 and tracks 3,578 professional contacts across them, including 1,587 with verified work emails. Zurich is the largest hub.
This list covers IT security consulting services 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 21, 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.
The 25 largest IT security consulting services based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 269 contacts → | ||||
Strong evidence “As a leading IT security enterprise, the SITS Group stands for end-to-end security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 199 contacts → | ||||
Partial evidence “Die InfoGuard AG ist spezialisiert auf umfassende Cyber Security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 99 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 77 contacts → | ||||
Strong evidence “AVANTEC steht seit über 20 Jahren für höchste IT-Security-Kompetenz.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 69 contacts → | ||||
Partial evidence “Over the last 25 years, Dreamlab Technologies has established itself as a source of constant innovation within the information security landscape.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 67 contacts → | ||||
Strong evidence “Kyos specializes in the fields of security, networks, and IT services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 66 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 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 65 contacts → | ||||
Strong evidence “SECURIX is a trusted consulting and service provider in the DACH region, specialising in information security, identity security and observability security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 62 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 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 58 contacts → | ||||
Strong evidence “Compass Security specializes in offensive and defensive IT security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 57 contacts → | ||||
Partial evidence “At KIDAN, we are not just IT consultants; we are architects of the future.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 56 contacts → | ||||
Indirect evidence “We live and work by our values, and integrate our professionalism, innovation, openness and honesty with caring, fun and the willingness to put our customers at the center of our…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 54 contacts → | ||||
Strong evidence “e3 has been a successful and innovative IT consulting and product company since We offer our customers in Zurich, Berne and the neighbouring European countries services and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 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 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 52 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 45 contacts → | ||||
Strong evidence “IT Consulting - IT Services - IT Outsourcing - IT Consulting - IT Services - IT Outsourcing- IT Consulting - IT Services - IT Outsourcing- IT Consulting - IT Services - IT…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Indirect evidence “ZENDATA, a leading cybersecurity company headquartered in Switzerland, has a significant presence in the Middle East and is officially recognized as a cyber expert by the Swiss…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 36 contacts → | ||||
Indirect evidence “Seit 1989 befassen wir uns professionell mit allem rund um die Sicherheit von Informationen.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Indirect evidence “Your all-in-one partner to secure your business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 33 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 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 29 contacts → | ||||
Partial evidence “Eine moderne IT muss mehr als nur funktionieren – sie soll Ihre Geschäftsprozesse und Arbeitsabläufe optimieren, höchste Sicherheitsstandards erfüllen und Ihr Unternehmen…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 28 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 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 27 contacts → | ||||
Partial evidence “Cyberfy Consulting is a technology consulting company based in Switzerland, founded by passionate experts with years of experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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 consulting services. 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 consulting services.
- Partial evidence
- Its own public description names part of IT security consulting services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT security consulting services. 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 402 IT security consulting services based in Switzerland
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,587 reachable decision-makers.
Free signup · no credit card
IT security consulting services based in Switzerland at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Switzerland, so it is reported there. Company counts and contact totals on this page are exact for Switzerland, over 402 companies.
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 consulting services, 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 consulting services”. 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 consulting services), 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 consulting services, 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, 1,587 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 21, 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.
IT security consulting services by metro
- IT security consulting services in Zurich44
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 consulting services, 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 consulting services are there based in Switzerland?
RevenueBase identified 402 IT security consulting services 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 Wettingen, tops this list with the largest team on record.
Which city has the most IT security consulting services?
Zurich leads with 44 headquartered companies, followed by Bern (19) and Zug (18).
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 1,587 verified decision-maker contacts tracked across these 402 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 402 IT security consulting services based in Switzerland. Start with a free account, no credit card.
Download this list →Related lists
IT security consulting services by geography
- IT security consulting services based in Adelaide, Australia
- IT security consulting services based in Brisbane, Australia
- IT security consulting services based in Canberra, Australia
- IT security consulting services based in Melbourne, Australia
- IT security consulting services based in Perth, Australia
- IT security consulting services based in Sydney, Australia
- IT security consulting services based in Barueri, Brazil
- IT security consulting services based in Belo Horizonte, Brazil
- IT security consulting services based in Brasilia, Brazil
- IT security consulting services based in Curitiba, Brazil
- IT security consulting services based in Porto Alegre, Brazil
- IT security consulting services based in Rio De Janeiro, Brazil
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security consulting services based in Adelaide, Australia
- IT security consulting services based in Brisbane, Australia
- IT security consulting services based in Canberra, Australia
- IT security consulting services based in Melbourne, Australia
- IT security consulting services based in Perth, Australia
- IT security consulting services based in Sydney, Australia