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View Local 501's top competitors like AFSCME, AFT, and Amalgamated Transit Union - Intl. Office.

AFT
The AFT is a union of professionals that champions fairness; democracy; economic opportunity; and high-quality public education, healthcare and public services for our students, their families and our communities. We are committed to advancing these principles through community engagement, organizing, collective bargaining and political activism, and especially through the work our members do.
Washington, District of Columbia, US
Non profit
$191.5M Revenue
http://www.aft.org
900 Employees
AFSCME
AFSCME is the nation’s largest and fastest growing public services employees union. AFSCME’s members provide the vital services that make America happen. We are nurses, corrections officers, child care providers, EMTs, sanitation workers and more. With working members in hundreds of different occupations and retirees across the country, AFSCME advocates for fairness in the workplace, excellence in public services and prosperity and opportunity for all working families. AFSCME is a union comprised of a diverse group of people who share a common commitment to public service. For us, serving the public is not just a job, it’s a calling. An important part of our mission is to advocate for the vital services that keep our families safe and make our communities strong. We also advocate for prosperity and opportunity for all of America’s working families. We not only stand for fairness at the bargaining table — we fight for fairness in our communities and in the halls of government.
Washington, District of Columbia, US
Non profit
$141.5M Revenue
http://www.afscme.org
1.2K Employees
SEIU
We are the Service Employees International Union, an organization of 2-million members united by the belief in the dignity and worth of workers and the services they provide and dedicated to improving the lives of workers and their families and creating a more just and humane society.
Washington, District of Columbia, US
Non profit
$6.7M Revenue
http://www.seiu.org/
1.9K Employees

Top Local 501 Employees

G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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