Register as a buyer
Enter your details so you can register as a buyer on e-marketplace
Talk to us
You can also contact us by email or phone
Email: info@gca.gov.uk
Telephone: 0345 410 2222
GCA customer services team is available Monday to Friday, 9am to 5pm (telephone lines open 10am to 4pm). Please note our Customer Service Centre will be closed on Wednesday 30th September due to an all-staff event. Response times may be longer than usual as a result. We apologise for any inconvenience caused.