Methodology

How this directory is built — and how to check our work

Firm verification

Every firm’s listed website was loaded on September 24, 2026 with curl (browser user-agent, redirects followed). Status codes below are the raw result of that check — including the three 403s from bot-protected sites, recorded honestly.

FirmExact URL checkedHTTP statusNoteDate
BSI Grouphttps://www.bsigroup.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
Schellmanhttps://www.schellman.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
A-LIGNhttps://www.a-lign.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
DNVhttps://www.dnv.com403Automated check returned 403 (bot protection); site confirmed live via public web, September 24, 2026.2026-09-24
SGShttps://www.sgs.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
TÜV SÜDhttps://www.tuvsud.com403Automated check returned 403 (bot protection); site confirmed live via public web, September 24, 2026.2026-09-24
TÜV Rheinlandhttps://www.tuv.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
Bureau Veritashttps://www.bureauveritas.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
LRQAhttps://www.lrqa.com403Automated check returned 403 (bot protection); site confirmed live via public web, September 24, 2026.2026-09-24
Intertekhttps://www.intertek.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
Pivot Point Securityhttps://www.pivotpointsecurity.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
MAST Consultinghttps://www.mastcgroup.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
AIGNhttps://aign.global200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
Dynamic Complyhttps://www.dynamiccomply.com200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24
WWISEhttps://wwise.co.za200Load-verified September 24, 2026 (curl, browser user-agent, redirects followed).2026-09-24

Role labeling

Each firm is labeled as a certification body (can issue ISO 42001 certificates) or a consultant (implements, cannot certify), based on the firm’s own published materials. Accreditation claims are attributed to their sources; verify accreditation with ANAB, UKAS, or your national body before engaging.

Cost figures

All cost figures are published third-party ranges with linked sources and dates — never our invention. Where ranges are estimates, they are labeled as estimates.

No rankings for sale

Directory order is not sold. Firms cannot pay to improve their placement.