Working tirelessly for the Rights and Protections of our Members

Joseph Smith

John Sinagra
Vice President

Keith Henderson
Financial Secretary

Joseph Plagenza

Lisa Menino
Recording Secretary

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.

Community Centers
Emergency Medical Services
Construction Projects

Member News

Welcome to Sena9158 Boston

Please register and login to view articles in this section. After logging in look for a new menu on the left. This menu will direct you to forms specific to your job and a copy of the current contract ...
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NOTICE OF LEGAL USAGE Notice to Exempt Managers, Officials, Staff Members and Contractors or any other Agents of The City of BostonInformation from this internet site is NOT intended for the free use of exempt employees, officials, staff members, contractors ...
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Four day work week

Please print this form, fill in all fields and return it to your steward. You may fill this form on screen and print or print the blank form and fill out by hand. You must have the free Adobe Reader ...
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The following forms are available to download:     Four Day Work Week Form ...
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Terms and Conditions

It is important to read the following terms of use. Your use of this site constitutes your agreement to abide by these terms. 1). The Sena9158 Website ( is created and designed for the purpose of communicating general information with ...
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Overview of Local 9158

Welcome to our new SENA Local 9158 website.This site is intended to provide a place for instant communication with our membership, creating a means to inform you of the latest news, contact information, upcoming events and photo gallery. As with ...
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Your Union
Your Voice

Steelworkers are men and women of every ethnic background from cities and towns in every region of our countries,

United Steel Workers

USW democracy begins at home, in more than 1,800 local unions throughout Canada, the United States and the Caribbean. Membership is open to all without discrimination.

Latest News

See what's going on at See all the latest news here.

Solidarity Works Podcast

Listen to the latest episode of Solidarity Works

USW News

Leading the way

A voice when
workers need a voice.

Established 1986
Member Benefits

A safe, healthy working environment is a right not a privilege.

Mailing address

15 Court Street
Boston, MA 02108

Contact phone


Contact email

Click a link in the top menu to contact an executive board member, steward, officer or trustee.

Contact us

    Sena Local 9158

    This site is intended to provide a place for instant communication with our membership, creating a means to inform you of the latest news, contact information and upcoming events