MassCOSH: Worker Safety Training and Advocacy in Massachusetts
MassCOSH is a nonprofit organization that helps workers across Massachusetts prevent injuries, improve workplace conditions, and advocate for safer jobs.
Mission
MassCOSH strives to ensure that all workers earn their living and return home alive and well. MassCOSH unites workers, unions and community groups with environmental and health activists, to end dangerous work conditions, to organize for safe, secure jobs, and to advocate for healthy communities. Through training, technical assistance and building community/labor alliances, MassCOSH mobilizes its members and develops leaders in the movement to end unsafe work conditions.
What does MassCOSH do?
20,000+
11
Tens of thousands
People are our priority
MassCOSH prioritizes workers who are under-represented and often at highest risk. We work with unions, occupational health professionals, lawyers, community and faith groups, and students and staff in public schools.
Immigrant Worker of Courage Award – Celebrating the Movement, 2022
Maritza Manrique, Mayra Molina, and Beatriz Yanez and other Worker Center participants.
Pathways to Good Jobs (April 2025)
Members of TL@W, Board Chair, and J. Christopher Johnson at the program bringing trades and other agencies together to show teens alternatives to college.
Mayor Student Forum (November 2024)
BPS students had the opportunity to provide testimony to Mayor Wu and Superintendent Skipper about the issues they are facing in Boston Public School and their demands for change.
Our story
Since 1976, MassCOSH has trained workers and built power for safer jobs across Massachusetts—through training rooms, coalitions, and the State House.
1976
Training at scale
MassCOSH begins training workers, union representatives, and community groups. To date: more than 20,000 trained.
1980
Legislative advocacy
Deep involvement in campaigns for laws that protect workers’ rights—with special focus on young workers and immigrants. Eleven major legislative campaigns referenced on the live site (verify current count with MassCOSH).
What we believe
These principles shape how MassCOSH trains workers, builds coalitions, and pushes for safer jobs—from shop floors and schools to the State House.
Collective power
Workers change workplaces and policy when they organize together.
Worker-led leadership
People harmed by unsafe work should lead the response.
Solidarity across difference
We build power across race, class, age, disability, orientation, language, and ethnicity.
Training that sticks
Hands-on safety education and technical help workers can use on the job.
帮助我们有所作为
您的支持助推器 培训， 宣传，以及 组织 这样工人就可以安全回家。
Leadership & staff
MassCOSH’s board and staff bring together worker advocates, trainers, and organizers. Meet the people behind the work—then dive into programs, trainings, and policy campaigns.
How we work
We combine training, technical assistance, community–labor alliances, and leader development so workers can prevent harm and win safer conditions.
Train workers & allies
Workplace safety training so people can spot hazards and know their rights.
Provide technical assistance
Hands-on help for workers, unions, and groups navigating unsafe conditions and workers’ compensation.
Build community–labor alliances
Connect unions, community organizations, health and legal partners, and schools.
Mobilize and grow leaders
Support members and develop leaders in the movement to end unsafe work.
Explore more
Board, staff, policies, and allied organizations—quick paths to governance, directories, and partners.