Union Directory
Sailors' Union of the Pacific (SIU)
Local ยท Seafarers International Union
Contact
- Mailing Address
- Attn: Matthew Henning, President 450 Harrison StSan Francisco, CA 94105
- Phone
- (925) 286-2322 Matthew J Henning, President Listed on the 2025 LM-2 report (opens in new tab)
Officers 6
-
Matthew Henning
President
-
Sam Worth
Vice President
-
Roy Tufono
Business Agent
-
Brendan Bohannon
Branch Agent
-
Patrick Weisbarth
Branch Agent
-
Leopoldo Martinez
Branch Agent
An executive officer can send the current list.
Federal Filing
- Members Reported
- 956
- Last Report
- 2025
- Form
- LM-2
- File Number
- 14585
Members as the union reported them on its 2025 LM-2 report. Counts may include retirees and associate members.
NLRB cases for Sailors' Union of the Pacific (SIU) Elections and unfair labor practice charges on LaborLab Search
Sources 2
- OLMS LM-2 report, 2025 (file no. 014-585) (opens in new tab)
Checked Oct 12, 2026
- OLMS filings for file no. 014-585, labordata.bunkum.us (opens in new tab)
Checked Oct 12, 2026
Listings come from public filings with the U.S. Department of Labor and from the organizations' own websites, as of the dates under Sources. Details change, and we may have them wrong. Check with the organization before you rely on them. Use Suggest an Edit above to tell us what's out of date.