Security Guard Companies in Ontario, California

2 security guard companies serving Ontario, California. Compare addresses, contacts, and coverage. Tell us what you need and we'll match you to a vetted partner.

  1. Guard Systems Inc

    1910 S Archibald Ave # M2, Ontario, CA 91761-8502

    (909) 947-6060 www.guardsystems.com San Bernardino County 250 to 499 employees

  2. Securitas Security Svc USA

    402 S Milliken Ave # G-H, Ontario, CA 91761-7850

    (909) 974-3160 www.securitasinc.com San Bernardino County 500 to 999 employees

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