ASA has published its ruling on petchip.network, finding that its online advertising misleadingly implied it was an approved database for the purposes of the legal requirements for the microchipping of cats and dogs and that the advertisements must not appear in that form again. For the full ruling see https://www.asa.org.uk/rulings/petchip-network-a24-1270884-petchip-network.html
You can find a list of AMDO member databases at https://www.amdo.org.uk/members/
You can find a list of authorised UK databases at https://www.gov.uk/get-your-dog-cat-microchipped
