How we verify

Each tester's details are read from their own website: where they work, what they test, the standards they name, accreditation and price. We check each business before marking it verified.

• Verified listings are businesses we have reviewed.
• Preliminary listings come from sites our crawler found and we have not reviewed yet. They are shown so you can see them, and marked so you know.

We do not check accreditation registers for you. Ask any tester for their current ATTMA registration and a sample report before you book. If a listing is wrong, use the contact page.