Contact Us General Contact Information
Contact CoStar Group

2 Bethesda Metro Center
10th Floor
Bethesda, MD 20814-5388

Tel: (800) 204-5960 / (301) 215-8300
Fax: (800) 613-1301 / (301) 718-2444

contact phone e-mail/url
Customer Support (800) 613-1303 support@costar.com
Product Sales (877) 7-COSTAR sales@costar.com
Employment Opportunities (888) 709-5086 http://www.costar.com/careers/
General Inquiries (800) 204-5960 info@costar.com
Billing Inquiries (888) 414-1243 tellus@costar.com