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WARN Act Layoffs in San Mateo, California

WARN Act mass layoff and plant closure notices in San Mateo, California, updated daily.

Data updated

20
Notices (All Time)
2,071
Workers Affected
Balfour Beatty US Civils
Biggest Filing (222)
Information & Technology
Top Industry

Data Insights

Industry Breakdown

Workers affected by industry sector

Layoff Types

Workers affected by notice type

Recent WARN Notices in San Mateo

WARN Act layoff notices
CompanyCityEmployeesNotice DateType
Pmab-5San Mateo63Layoff
Pmab-5San Mateo63Layoff
Draegers SupermarketsSan Mateo71Closure
Draegers SupermarketsSan Mateo71Closure
GoProSan Mateo73Layoff
GoProSan Mateo73Layoff
Phoenix Labs USA Operations, Inc. aka Phoenix Labs (Foster City)San Mateo162Layoff
IndeedSan Mateo87Layoff
IndeedSan Mateo87Layoff
The Ronin ProjectSan Mateo131Closure
Balfour Beatty US CivilsSan Mateo222Layoff
Sony Interactive EntertainmentSan Mateo118Layoff
Sony Interactive EntertainmentSan Mateo118Layoff
Balfour Beatty US CivilsSan Mateo222Layoff
Marriott San Mateo HotelSan Mateo127Closure
Marriott San Mateo HotelSan Mateo127Closure
Activision BlizzardSan Mateo76Layoff
ExabeamSan Mateo94Layoff
IlluminaCentre Drive San Mateo1Layoff
Fish Market RestaurantsSan Mateo85Closure

Companies in San Mateo

GoPro Balfour Beatty US Civils Marriott San Mateo Hotel Sony Interactive Entertainment

Latest Layoff Reports

California — December 2026 report California — November 2026 report California — October 2026 report

Other Cities in California

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Top Industries

Manufacturing in California Information & Technology in California Retail in California Healthcare in California Finance & Insurance in California

County

San Mateo County Layoffs

Metro Area

San Francisco Bay Area Layoffs & Job Cuts

San Mateo, California Layoff FAQ

How many layoffs have been announced in San Mateo, California?
San Mateo, California has had 20 WARN Act notices (all time) affecting 2,071 workers.
What was the largest recent layoff in San Mateo, California?
The largest WARN filing in San Mateo, California was by Balfour Beatty US Civils, affecting 222 workers.
What is the WARN Act?
The Worker Adjustment and Retraining Notification (WARN) Act is a federal law requiring employers with 100 or more employees to provide 60 calendar days' advance notice of plant closings and mass layoffs. Some states have stricter mini-WARN laws with lower thresholds or longer notice periods.

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