Boston, Massachusetts
SENA LOCAL 9158
Unity and Strength for Workers

Sena Local 9158 is a member of United Steel Workers
Leading the way
Building and Maintaining a Better City Together
Sena Local 9158 is a United Steel Workers local union. Sena represents public employees in Massachusetts. Our members do some of the most important jobs in the City of Boston every day to keep the City thriving and moving forward.
Below are just some of the important jobs our members take pride in doing. Click the link below to learn more about our union and it’s members.
Arborist
Community Centers
Transportation
horticulture
EMS
Construction Projects
Latest Member News
2025 BCYF Secret Santa Program – Help us spread some joy!

Take Action: Tell Robert Wood Johnson President That Nurses Deserve a Fair Contract and a Safe Workplace
More than 1,700 nurses at Robert Wood Johnson University Hospital in New Brunswick, New Jersey, members of United Steelworkers (USW) Local 4-200, are currently engaging…
Change of Venue Vote
To All Members If you wish to change the venue for the meeting to the Carpenter Center We will be voting on this issue at…
USW and Bath Iron Works Reach Tentative Agreement, Raising Wages, Likely Averting Strike
Machinists (IAM) Local S6 and Bath Iron Works in Maine have reached a tentative agreement on a new contract. Local S6 represents approximately 4,250 of the…
New Benefit for City of Boston Employees
Saving Lives by teaching people how to detect cancer early.Scan the QR Code to get started or visit their Website by clicking the link below…
More than 1,700 Nurses on Strike at Robert Wood Johnson University Hospital
More than 1,700 nurses at Robert Wood Johnson University Hospital in New Brunswick, New Jersey, went on strike Friday morning. The nurses, members of United Steelworkers…
OPINION: How federal law can protect all workers on sweltering summer days
July 31, 2023 By TOM CONWAYPresidentUnited Steelworkers The heat index soared to 111 degrees in Houston, Texas, but the real-feel temperature climbed even higher than…
Latest USW News
- USW, Allies Slam Pause in Shipbuilding Relief Measures, Call on USTR to Prioritize National SecurityContact: Jess Kamm Broomell, jkamm@usw.org, 412-562-2444 (Pittsburgh) – The United Steelworkers union (USW) along with labor allies this week called on the United States Trade Representative (USTR) to stand firm on Section 301 trade relief […]
- Contact: Jess Kamm Broomell, jkamm@usw.org, 412-562-2444 (Pittsburgh) – A historic new slate of officers will take over leadership of the United Steelworkers (USW) in March following the union’s regular four-year nomination and election process that […]
- Contact: Jess Kamm Broomell, jkamm@usw.org, 412-562-2444 (Massena, N.Y.) – United Steelworkers (USW) District 4 Director Dave Wasiura issued the following statement in response to Alcoa’s announcement that it secured a 10-year energy contract and will […]
- Contact: R.J. Hufnagel, rhufnagel@usw.org, 412-562-2450 PITTSBURGH – The United Steelworkers (USW) released the following statement today from International President David McCall and International Association of Machinists (IAM Union) International President Brian Bryant in response to […]
- FOR IMMEDIATE RELEASE: Fri., Oct. 3, 2025Contact: Chelsey Engel, cengel@usw.org, 412-212-8173 (Fontana, Calif.) – More than 8,600 Kaiser Permanente health care workers represented by USW Local 7600 have officially issued a 10-day notice of intent […]
- Contact: R.J. Hufnagel, (412) 562-2450, rhufnagel@usw.org (PITTSBURGH) – Leo W. Gerard, who led the United Steelworkers (USW) as the union’s international president for more than 18 years, died on Sunday, Sept. 21, 2025. Gerard, who […]
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