Onyx Building Company

Also listed as: Groff Mike Incorporated

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license	#772977
Classifications	B — General Building
Office of record	9592 Topanga Cyn Blvd Chatsworth, CA 91311 Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)	(818) 254-6405
Contractor bond	$25,000 — Hudson Insurance Company
Workers' comp (CSLB record)	Exempt
Business type	Corporation
License issued	December 29, 1999
License expires	March 31, 2027

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Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.