BSI Group
BSI Group originated the standard that became ISO 27001 (as BS 7799) and is one of the world's best-known certification bodies, with auditors in most major markets. It offers the full ISO 27001 journey: gap assessment, training, Stage 1 and Stage 2 certification audits, and annual surveillance.
At a glance
| Headquarters | London, United Kingdom |
|---|---|
| Founded | 1901 |
| Firm type | Accredited certification body (UKAS) |
| Audit-fee planning range | $15K–$50K (published planning range, Sept 2026) |
| Typical certification window | 4–9 mo |
| Frameworks (per firm) | ISO 27001, ISO 27017, ISO 27018, ISO 27701, SOC 2, ISO 9001, ISO 22301 |
| Official website | bsigroup.com |
Best fit
Companies that want maximum certificate recognition — a BSI certificate is rarely questioned by procurement teams.
Before you engage
Premium positioning; day rates and scheduling reflect the brand. Get a competing quote before assuming the premium buys a better audit.
Questions about BSI Group
Is BSI Group an accredited body that can issue ISO 27001 certificates?
BSI Group is listed here as a Accredited certification body (UKAS). Only accredited certification bodies can issue ISO 27001 certificates — confirm the body's current accreditation for ISO 27001 (check the accreditation body's directory, e.g. UKAS, ANAB, DAkkS, RvA) before engaging.
What frameworks does BSI Group support?
Per the firm's public materials: ISO 27001, ISO 27017, ISO 27018, ISO 27701, SOC 2, ISO 9001, ISO 22301.
How do I get pricing from this certification body?
Audit fees are scoped per engagement and not published by most CBs. Use our quote request to get a scoped fee from BSI Group and comparable CBs.
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