Company lists · Data refreshed September 2026
Top 25 Information security consulting firms based in Switzerland
RevenueBase identified 357 information security consulting firms headquartered in Switzerland as of September 2026 and tracks 3,360 professional contacts across them, including 1,452 with verified work emails and 76 with mobile numbers. Zurich is the largest hub.
This list covers information security consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 information security consulting firms based in Switzerland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 268 | ||||
“As a leading IT security enterprise, the SITS Group stands for end-to-end security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 101 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 77 | ||||
“AVANTEC steht seit über 20 Jahren für höchste IT-Security-Kompetenz.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 73 | ||||
“Redguard is a company specialized in information security and cyber security with headquarters in Bern, Zurich and Neuchâtel.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 71 | ||||
“At KIDAN, we are not just IT consultants; we are architects of the future.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 67 | ||||
“We protect organizations from evolving cyber threats, empowering them to operate securely and confidently in an increasingly complex digital world.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 65 | ||||
“SECURIX is a trusted consulting and service provider in the DACH region, specialising in information security, identity security and observability security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 63 | ||||
“Oneconsult has been your Swiss cybersecurity services partner since 2003 and operates independently of any particular products or manufacturers.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 | ||||
“Compass Security specializes in offensive and defensive IT security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 56 | ||||
“IHR VERTRAUENSVOLLER CYBERSECURITY PARTNER Schutz und Sicherheit ohne Kompromisse Als Security Spezialist und führender Anbieter von IT-Sicherheitslösungen bieten wir mit höchstem…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 55 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 52 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 | ||||
“SPHYNX offers products and solutions, and consulting services, in the areas of cyber intelligence, analytics, incident response, assurance, and certification.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 37 | ||||
“Seit 1989 befassen wir uns professionell mit allem rund um die Sicherheit von Informationen.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 32 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 | ||||
“Your all-in-one partner to secure your business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 31 | ||||
“ISPIN AG ist ein führender Schweizer Anbieter von Lösungen und Beratungsleistungen rund um die Informationssicherheit.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 30 | ||||
“Eine moderne IT muss mehr als nur funktionieren – sie soll Ihre Geschäftsprozesse und Arbeitsabläufe optimieren, höchste Sicherheitsstandards erfüllen und Ihr Unternehmen…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 | ||||
“Asperiq develops, integrates and maintains cyber protection solutions for governments, NGOs and critical infrastructure organisations.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 27 | ||||
“Cyberfy Consulting is a technology consulting company based in Switzerland, founded by passionate experts with years of experience.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 | ||||
“Wir von Selution haben es uns zur Aufgabe gemacht, Unternehmen in verschiedenen Branchen dabei zu helfen, mithilfe von modernsten Informations- und Kommunikationslösungen die…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 27 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 26 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | 24 | ||||
“immunIT is a Swiss company fully dedicated to information security, with trust, ethics and integrity as core values.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 23 | ||||
“ensec is a Swiss company specialized in information security.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 357 information security consulting firms based in Switzerland
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Information security consulting firms based in Switzerland at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
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 information security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Switzerland whose own description of what they do matches “information security consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among information security consulting firms, 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 an evidence 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, 1,452 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 3, 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.
Information security consulting firms by metro
- Information security consulting firms in Zurich51
Frequently asked
How many information security consulting firms are there based in Switzerland?
RevenueBase identified 357 information security consulting firms 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 information security consulting firms?
Zurich leads with 51 headquartered companies, followed by Zug (20) and Bern (15).
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 1,452 verified decision-maker contacts tracked across these 357 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 3, 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 SmartSearch, 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.
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