Experts and Proof AI Run Your ISO Internal Audit.
Our experts run your mandatory ISO internal audit, end to end. Proof AI prepares the plan, checklists, and evidence review, our experts draft the findings, and a partnered certified auditor conducts the audit and signs off. You get a finished internal audit, not just preparation.

Enterprises that already turn proof into progress with Sunhat

















































Your Internal Audit, Conducted and Signed Off.
Every ISO certification means a mandatory internal audit, every year. Staffing it pulls your team off their work, and a thin audit shows up at the next surveillance visit.
We run the whole internal audit. Proof AI prepares the plan, checklists, and documentation review, our experts draft the findings and the audit report, and a partnered certified auditor conducts the audit and signs off. You get a finished audit, ready for your certification body.
From First Contact to Finished Proof
Scoping and plan
We map your management system and standards, and build the audit plan and checklists.
Evidence review
Proof AI reviews your documentation against the standard, our experts flag the gaps.
The audit
A partnered certified auditor conducts the internal audit and records the findings.
Report and sign off
You get a finished audit report, signed off, ready for your certification body.
Real People. ISO Expertise.
Our in-house experts run the preparation, the evidence review, and the report. A partnered certified auditor conducts the audit and signs off, so the result is independent.


Proven Performance
"Sunhat streamlines our sustainability data processes while ensuring our ongoing compliance with evolving standards."


Explore Other Services
The Internal Audit Is Rarely the Only Request on Your Desk. The same expert team also covers EcoVadis, CDP, CSRD and more, and your evidence gets reused across every framework. One principle everywhere: you provide documents, we deliver finished proof.
Audit Once. Start Next Year Ahead.
Your audit does not sit in a folder. The plan, evidence, and findings land in your Proof Library, so next year's internal audit starts from structured proof, not from scratch, and the same evidence feeds your ratings and reports.

Frequently Asked Questions
Get answers about how our services work, what you provide, and what you get back.
No. We run your internal audit for you on the Sunhat Proof Platform. You provide access to your documentation, review what we prepare, and the certified auditor signs off.
Access to your management system documentation and evidence, and a contact person. We handle the plan, the review, the audit, and the report.
ISO 9001, 14001, 45001, and 50001, single standard or as an integrated management system.
A partnered certified auditor conducts the audit and signs off, so the internal audit is independent and holds up with your certification body.
Your Internal Audit, Off Your Team's Plate.
The audit is mandatory, but staffing it does not have to be your problem. We run it end to end and a certified auditor signs off. Book a call and we show you how it would run.









