Corporate headquarters
Hewlett-Packard Company
3000 Hanover Street
Palo Alto, CA
94304-1185
USA

Phone: (+1) 650-857-1501
Fax: (+1) 650-857-5518

Open 8:00 a.m. to 5:00 p.m. Pacific Time, Monday - Friday.

Unfortunately, HP is not able to offer tours of HP corporate headquarters or the HP Garage site to members of the general public, whether they are individual citizens, school or university groups, non-profit organizations, etc. If you'd like to learn more about the HP Garage, we encourage you to visit:
http://www.hp.com/hpinfo/abouthp/histnfacts/garage/ .