Contact OPAC

San Francisco Office (Main):
230 California Street
Suite 207
San Francisco, CA 94111
U.S.A.
Tel: +1-415-989-4551
Fax: +1-415-989-4135

Berkeley Office:
2140 Shattuck Avenue
Suite 407
Berkeley, CA 94704
U.S.A.


Professional Services Inquiry:
Matthew Etchepare
Tel: 415-989-4551, ext. 204
Email: metchepare@opacengineers.com


Management Inquiry:
Vivian Chang
Tel: 415-989-4551, ext. 208
Email: vchang@opacengineers.com


Employment Inquiry:
Vivian Chang
Tel: 415-989-4551, ext. 208
Email: vchang@opacengineers.com