Improve Your Business With Diamond PEO Services

Diamond PEO is a full-service employment organization that will help your company manage everything from employee benefits to payroll processing. Regardless of the industry you’re in or how many employees you have, we can provide the services you need to keep your employees satisfied and your business running smoothly.

Diamond PEO is proud to be an
“A” Rated Workers’ Compensation Carrier:

We have access to multiple carriers, which allows you the opportunity to service a broader spectrum of clients. The “A” rating is the premier rating authority on insurance carriers. They review current financial data on insurance carriers, as well as trends in the data over the past years.

Diamond PEO has a comprehensive workers’ compensation outsourcing program, which includes workers’ compensation insurance, claims administration, and loss control; including on-site inspections, safety program development, implementation, and maintenance; as well as federal and state OSHA compliance.


Diamond has two operating divisions: a PEO and a traditional Staffing and Placement Agency.

Diamond PEO Offices

San Juan Capistrano,
Ca- Corporate Headquarters

Corporate Office
27442 Calle Arroyo
Cottage 45
San Juan Capistrano, CA 92675

Los Angeles Office
879 West 190 Street Suite 400
Gardena, CA 90248

Riverside Office
12139 Mt Vernon Ave Suite 105
Grand Terrace, CA 92313

Diamond PEO Canada Office
2416 Main Street, Suite 398
Vancouver, BC, V5T 3E2

Oregon Office
650 NE Holladay Street, Suite 1600
Portland, OR 97232


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