Contact Us
We want to hear from you and are standing by to accept your calls and e-mails.
US & Canada Customer Service
Monday – Friday: 7:30am ET - 8:00pm ET
Saturday: 9:00am ET - 6:00pm ET (via e-mail only)
T. 800-613-1303
E. support@costar.com
UK Customer Service
Monday – Friday: 8:00am GMT - 6:00pm GMT
T. 020 3205 4500
E. helpdesk@costar.co.uk
US & Canada Sales
T. 888-226-7404
E. sales@costar.com
UK Sales
T. 020 3205 4600
E. sales@costar.co.uk
Press Inquiries
Matthew Blocher
T. (202) 346-6775
E. mblocher@costar.com
Headquarters
T. 800-204-5960