Contact TriNet

TriNet is headquartered in San Leandro, California, in the San Francisco Bay Area, with offices nationwide and in Canada. Contact us today to learn more about our HR outsourcing services or our company.

For Sales Support: 888-874-6388
Contact Sales
For Customer Support 800-638-0461
(6 a.m.-6 p.m., M-F, Pacific Time)
employees@trinet.com
For TriNet's Corporate Office 510-352-5000
For HR Passport™ Support 800-638-0461
(6 a.m.-6 p.m., M-F, Pacific Time)
employees@trinet.com
To Refer a Business to Us Use our form.
For Strategic Partner Requests Use our form.
For TriNet Insurance Services 1-888-842-6805
Learn more.
For Media Inquiries Contact pr@trinet.com
For Web Site Questions Contact the Web Administrator
Find Our Offices Visit Sales Offices