Every new California business filing, every dayNew Law Firm Businesses in Costa Mesa, CA
2 law firm businesses recently registered in Costa Mesa, California.
Updated September 28, 2026 · Most recent business filing Mar 17, 2026
Every new California filing, every day
See how it worksAbout Law Firm Businesses in Costa Mesa
This page lists new law firm businesses registered in Costa Mesa, California. We currently track 2, sourced directly from the California Division of Corporations and refreshed daily as new law firm companies file.
Recent additions include O'Brien Law and MAG Law Firm. The most recent law firm business filing was on Mar 17, 2026.
Each entry shows the filing date and, where we can verify it, the owner name and contact details. If you sell to law firm businesses in Costa Mesa, this is one of the freshest prospect lists in the market.
All Filings
O'Brien Law
Mar 17, 2026The LLC operates as O'Brien Law, P.C., a litigation-focused law firm based in Petaluma, CA. The firm emphasizes customer service and experience in construction law. The principal address is not listed in the filing, but the website provides a specific address and phone numbers.
MAG Law Firm
Jun 1, 2025Law firm PC in California, likely solo or small practice, offering bilingual services in Spanish/English.
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