Easton & Easton
“Brenda and the whole team made my experience with them as painless and as you'd want, especially after a car injury.”
Best Business Attorneys in Costa Mesa, CA
24 firms listed · all 24 in Costa Mesa · 1 open 24/7 · 3 open weekends · 18 rated 4.5+
Data verified October 18, 2026
Ameriestate Legal Plan
“Our trust representatives navigated a complex series of issues and several travel restraints successfully.”
Kenney Legal Defense Firm
“Kenney displayed exceptional, combative, questioning, while maintaining composure, ultimately leading to unraveling lies, admissions of forgery, and a loss of composure on the part of the witness.”
Reyes & Schroeder Associates
“Attorney Lili Reyes Schroeder has been very kind and professional when answering my immigration questions and giving me recommendations.”
Arya Law Center
“Great great great work for the clients”
Adams & Pham APC
“He was very patient in answering my questions and very timely in all responses.”
The 24 firms shown for Costa Mesa, CA advise companies on formation, contracts, ownership agreements and transactions. Whatever each one says about its practice areas and fee arrangements is drawn from its own website, and the ratings come from public reviews.
Area overview: Costa Mesa, CA
All 24 firms we list here are in Costa Mesa itself. We have 28 firms in Costa Mesa on file; this page shows the highest-rated 24. 20 of the firms on this page have a rating, from 4.2 to 5.0 across 638 reviews; 3 have 50 or more reviews and 18 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (100%), responsiveness (75%) and value (63%). 1 is open around the clock; 3 are open on Saturdays and 2 on Sundays. The practice areas the firms on this page list most often on their websites are intellectual property (3), business formation (2), business law (2), employment law (2) and estate planning (2). 2 show a license on their websites and 1 has a BBB rating of A or A+. 17 have ten or more years of experience, the longest 27 years. 1 offers urgent consultations; 7 offer a free initial consultation; 1 is family- or locally-owned and 2 list coupons or special offers. 1 has Spanish-speaking staff. We count these figures across the firms on this page; hours and prices change, so confirm the details with the firm before you book a consultation.
Which business law firms listed for Costa Mesa describe their corporate work online?
A website is on file for 23 of the 24 firms listed here. Corporate pages tend to be concrete about industries served, transaction types and the size of company the practice acts for. That detail rules firms in or out faster than any phone call.
Feldhake Law Firm
“Really amazing legal team, highly recommend Robert Feldhake!!”
Engels-Janzen
“The Engels-Janzen's team was always responsive and readily available to address my many questions and concerns, thus making a very complex and stressful situation much more manageable.”
Cal-Lawyer
Ershaghi Immigration Law Center
“He helped my husband and I with our case and we successfully received my green card shortly after our interview.”
Siddiqui LAW
“Very professional, responsive and very knowledgeable attorneys.”
Gallinger Law
“Immediately gives you confidence that your requests are in the right hands.”
Sedehi Law
“I would definitely recommend Sedehi Law to anyone needing a lawyer for tenants rights** Thank you!”
Helton Law Group
Musick, Peeler & Garrett
Winter
“This firm will put your businesses best interests first and provide honest legal advice to help your company navigate the best course of action.”
Buckner, Robinson & Mirkovich
Ross, Wolcott, Teinert & Prout
“He patiently listened to me and my family, collected extensive evidence and information, and dug deep into the truth and essence of the case to make relevant and correct decisions.”
Ambrosi & Doerges
Aloupas Law
Trush Law Office
Garcia Rainey Blank & Bowerbank
TVA Law
Michael Brennan Law Offices
Why these companies made our list
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