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Find Business Lawyers in Ontario, CA

Browse business lawyers serving Ontario, California. Contact information and addresses listed below.

20 attorneys listed
Updated May 2026
Ontario, CA
Important: Listings are compiled from publicly available sources and have not been independently verified by BeforeAttorney.com. We do not endorse any attorney or guarantee outcomes. Verify licensing and disciplinary status with the State Bar of California before hiring.
Showing 20 business lawyers in Ontario, CA Listings are displayed in no particular order and are not ranked by BeforeAttorney. Order does not constitute a recommendation or endorsement of any attorney.
BANDERAS LAW, PC
3401 N Centre Lake Dr #470, Ontario, CA 91761
(909) 707-0000 banderaslaw.com
Montgomery Steele Law
2151 E Convention Center Way Ste 231, Ontario, CA 91764
(909) 473-4866 montgomerysteele.com
Jacoby & Meyers Accident & Injury Lawyers - Ontario
3200 E Guasti Rd #100, Ontario, CA 91761
(909) 316-5154 jacobyandmeyers.com
Centro Legal De Accidentes
223 N Laurel Ave, Ontario, CA 91762
(855) 912-6909 abogadodeaccidentesontario.com
Law Office of Cierra Esq, APC
3350 Shelby St #200, Ontario, CA 91764
(888) 364-4444 cierraesqlaw.com
Oracle Law Firm | Accident & Injury Attorneys
3200 E Guasti Rd #100, Ontario, CA 91761
(909) 333-4990 oraclelawfirm.com
Pérez Law, PC | Injury & Employment Lawyers
822 N Euclid Ave, Ontario, CA 91762
(909) 983-2235 perezlawcorp.com
Shouse Law Group - DUI & Criminal Lawyers
3281 E Guasti Rd Suite 728, Ontario, CA 91761
(909) 483-2814 shouselaw.com
Vista Legal Services
2519 S Euclid Ave, Ontario, CA 91762
(909) 984-9555 vistalegalservices.com
Wadhwani & Shanfeld
3200 E Guasti Rd #100, Ontario, CA 91761
(909) 340-3497 wslaw.com
Amicus Legal Group – Ontario Car Accident and Personal Injury Attorneys
800 N Haven Ave #205, Ontario, CA 91764
(909) 498-8215 amicuslegalgroup.com
Neil Panchal Law
337 N Vineyard Ave suit 400, Ontario, CA 91764
(951) 703-6499 panchallaw.com
Moet Law Group
3400 Inland Empire Blvd Suite 101A, Ontario, CA 91764
(909) 479-5227 moetlaw.com
Shaw 3 Law Firm
337 N Vineyard Ave Ste 315, Ontario, CA 91764
(951) 263-0412 shaw3lawfirm.com
Law Offices of Dennis A. Dascanio
3401 N Centre Lake Dr Ste. 580, Ontario, CA 91761
(909) 460-6900 dascaniolaw.com
Robert J Spitz Law Office
204 N San Antonio Ave Unit 5, Ontario, CA 91762
(909) 395-0909 businesslawlawyer-realestatelaw-attorney-ontariocalifornia.com
Gonzales Law Offices - Attorney Mark Gonzales
500 East E Street Suite 213, Ontario, CA 91764
(909) 406-5099 gonzaleslawoffices.com
Empire Business Law, Inc.
3200 E Guasti Rd Suite 100, Ontario, CA 91761
(909) 295-8725 empirebusinesslawfirm.com
Omega Law Group Accident & Injury Attorneys
430 N Vineyard Ave # 302, Ontario, CA 91764
(909) 308-5480 omegalaw.com
Huprich Law Firm PC
980 W 6th St, Ontario, CA 91762
(909) 766-2226 huprichlaw.com

What Does a Business Lawyer in Ontario Cost?

Business lawyer fees in California typically range from $250 to $600 per hour. Flat fees for simple LLC formation might be $1,000 to $2,500. Retainers for ongoing advice often start at $2,000 to $5,000. Costs vary by case complexity and attorney experience. This is general information, not legal advice.

* Cost estimates are general ranges based on publicly available data and compiled using automated research tools. Actual fees vary by attorney and case complexity. This is not legal advice — consult directly with an attorney for fee specifics.

Frequently Asked Questions

What does a business lawyer in Ontario do?
A business lawyer helps with forming LLCs or corporations, drafting contracts, handling disputes, and ensuring compliance with California business laws. They also assist with mergers, acquisitions, and intellectual property issues.
Do I need a business lawyer for a small business in California?
Yes, especially when forming a business entity or signing contracts. California has specific filing requirements with the Secretary of State and strict liability rules for business owners. A lawyer can help avoid costly mistakes.
What is the statute of limitations for a business contract dispute in California?
For written contracts, the statute of limitations is four years under California Code of Civil Procedure Section 337. For oral contracts, it is two years under Section 339. You should act quickly to preserve your rights.