Contact us

Important Addresses / Phone Numbers

SUP Headquarters
450 Harrison St.
San Francisco CA 94105
(415) 777-3400
(415) 777-5088 fax
(415) 777-3616 Dispatcher

Seattle Office
SUP/MFU
4005 20th Ave. West, Ste 115
Seattle, WA 98199
(206) 467-7944
(206) 467-8119 fax

Wilmington Office
533 N. Marine Ave.
Wilmington CA 90744
(310) 835-6617
(310) 835-9367 fax

Honolulu Office
707 Alakea St.
Honolulu HI 96813
(808) 533-2777
(808)533-2778 fax

SUP Welfare Plan
730 Harrison St.
San Francisco CA 94107
(415) 778-5490 / (800) 796-8003 Main
(415) 778-5491 Eligibility active/dependents
(415) 778-5493 SUP Money Purchase Plan, SUP 401(k) Plan, Pensioner Benefits
supwelfarerep@hotmail.com

SIU-PD Pension Plan
730 Harrison St.
San Francisco CA 94107
(415) 764-4987 Pension
(415) 764-4991 Supplemental Benefits Plan

Andrew Furuseth School of Seamanship
450 Harrison St.
San Francisco CA 94105
(415) 546-1537