Head-to-head
BSI vs SGS: ISO 27001 compared
Both are top-tier global CBs — BSI wins on brand recognition for the certificate itself; SGS wins on scale for complex multi-site programs.
Side by side
| Fact | BSI Group | SGS |
|---|---|---|
| Headquarters | London, United Kingdom | Geneva, Switzerland |
| Founded | 1901 | 1878 |
| Firm type | Accredited certification body (UKAS) | Accredited certification body (UKAS and others) |
| Audit-fee planning range | $15K–$50K (published planning range, Sept 2026) | $15K–$50K (published planning range, Sept 2026) |
| Typical certification window | 4–9 mo | 4–9 mo |
| Frameworks (per firm) | ISO 27001, ISO 27017, ISO 27018, ISO 27701, SOC 2, ISO 9001, ISO 22301 | ISO 27001, ISO 9001, ISO 14001, ISO 27701, ISO 45001 |
Choose BSI Group if…
You want maximum certificate recognition from the body that originated the standard, with a premium to match. Full BSI Group profile →
Choose SGS if…
You want a single global contract for multi-site, multi-country certification from the world's largest TIC. Full SGS profile →
Independent directory note. Facts compiled from the CBs' public materials, verified September 2026. Not an endorsement, not a paid placement. Planning ranges are not quotes.
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