Insights

Social Justice Focus SEIU Local 521 actively engages in progressive activism related to social justice issues such as immigration, racial equity, and environmental justice, positioning it as a potential partner for organizations focused on corporate social responsibility and sustainability initiatives.

Regional Presence With a broad geographic reach across the Coast, Central Valley, and Silicon Valley and nearly 53,000 members, the organization offers extensive opportunities for community-based outreach, membership engagement, and local partnership programs.

Digital Engagement Utilizing a diverse tech stack including WordPress, social media tools, and event management platforms, SEIU Local 521 demonstrates a strong digital presence, indicating potential for digital services, membership platform enhancements, or targeted online campaigns.

Financial Scope Operating with an annual revenue between 10 and 25 million dollars, the organization presents a substantial opportunity for vendors offering nonprofit management solutions, fundraising platforms, or financial services tailored to large membership organizations.

Growth Potential As a leading labor organization in the civic sector committed to social justice and worker advocacy, SEIU Local 521 is well-positioned to collaborate on initiatives related to worker benefits, advocacy tech, and capacity-building efforts to expand its influence.

SEIU Local 521 Tech Stack

SEIU Local 521 uses 8 technology products and services including Facebook Pixel, WordPress, Font Awesome, and more. Explore SEIU Local 521's tech stack below.

  • Facebook Pixel
    Analytics
  • WordPress
    Content Management System
  • Font Awesome
    Font Scripts
  • Backbone.js
    Javascript Frameworks
  • Bluehost
    Web Hosting
  • The Events Calendar
    Web Platform Extensions
  • Nginx
    Web Servers
  • Instagram Feed for WordPress
    Widgets

Media & News

SEIU Local 521's Email Address Formats

SEIU Local 521 uses at least 1 format(s):
SEIU Local 521 Email FormatsExamplePercentage
First.Last@seiu521.orgJohn.Doe@seiu521.org
96%
FLast@seiu521.orgJDoe@seiu521.org
2%
Last@seiu521.orgDoe@seiu521.org
1%
First.Middle@seiu521.orgJohn.Michael@seiu521.org
1%

Frequently Asked Questions

What is SEIU Local 521's official website and social media links?

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SEIU Local 521's official website is seiu521.org and has social profiles on LinkedIn.

What is SEIU Local 521's SIC code NAICS code?

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SEIU Local 521's SIC code is 8631 - Labor Unions and Similar Labor Organizations NAICS code is 8134 - Civic and Social Organizations.

How many employees does SEIU Local 521 have currently?

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As of December 2025, SEIU Local 521 has approximately 110 employees across 2 continents, including North AmericaOceania. Key team members include Director: J. R.Director Of Finance: M. L.Local-Wide Field Director: T. G.. Explore SEIU Local 521's employee directory with LeadIQ.

What industry does SEIU Local 521 belong to?

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SEIU Local 521 operates in the Civic and Social Organizations industry.

What technology does SEIU Local 521 use?

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SEIU Local 521's tech stack includes Facebook PixelWordPressFont AwesomeBackbone.jsBluehostThe Events CalendarNginxInstagram Feed for WordPress.

What is SEIU Local 521's email format?

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SEIU Local 521's email format typically follows the pattern of First.Last@seiu521.org. Find more SEIU Local 521 email formats with LeadIQ.

When was SEIU Local 521 founded?

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SEIU Local 521 was founded in 2007.

SEIU Local 521

Civic and Social OrganizationsCalifornia, United States51-200 Employees

SEIU Local 521 is on the cutting edge of progressive activism, building the power of workers and engaging in larger social justice issues such as immigration, racial and environmental justice. SEIU Local 521 represents nearly 53,000 public and non-profit, private sector workers on the Coast, in the Central Valley, and throughout Silicon Valley. We are looking for energetic, hardworking staff that are committed to real change, who believe in the value of public services, and who want to be part of the team that wins for workers, their families, and their communities.

Section iconCompany Overview

SIC Code
8631 - Labor Unions and Similar Labor Organizations
NAICS Code
8134 - Civic and Social Organizations
Founded
2007
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

    SEIU Local 521's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    SEIU Local 521's revenue is estimated to be in the range of $10M$25M

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