Jonas Trevethan

4.5 (39 reviews )

Irvine California United States

Labor and Employment Law - Management Litigation - Labor and Employment

Recognized in Ones to Watch since 2026

714-641-5100 Website

About Jonas

Jonas Trevethan is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law - Management and Litigation - Labor and Employment.Jonas, who practices law in Irvine, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonas is held by other top lawyers in the same geographic and legal practice area.

Jonas Trevethan is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law - Management and Litigation - Labor and Employment.

Jonas, who practices law in Irvine, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonas is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Labor and Employment Law - Management

Litigation - Labor and Employment

Education

University of California Irvine

Awards & Recognition

Contact Me

Login Required

Please login to contact this attorney

Reviews

4.5 / 5

39 Reviews

1,043 Profile Views

Casey Koss

Feb 05, 2026

Top notch experts in Irvine - Jonas Trevethan is by far the best lawyer I've ever had

Best lawyer for Labor and Employment Law - Management in Irvine. Period. I've seen others, but Jonas Trevethan is on another level. They truly care about their clients and work hard to get the best re...

Arturo Renner

Feb 05, 2026

Five stars for the incredible team at Jonas Trevethan in Irvine - they are amazing

If you need a Labor and Employment Law - Management lawyer, Jonas Trevethan is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details...

Yolanda Mante

Feb 05, 2026

Great people who truly care at Jonas Trevethan - the best legal team in California

Just wanted to say a huge thanks to Jonas Trevethan and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without their c...

Carmen Hickle

Feb 05, 2026

Simply amazing representation from Jonas Trevethan's office during my recent legal matter

I didn't think I'd find such a good lawyer in California, but here we are and I am thoroughly impressed. Jonas Trevethan is just awesome and exceeded all my expectations. No complaints at all! They re...

Ruby Considine

Feb 05, 2026

Highly recommend Jonas Trevethan for anyone needing expert Labor and Employment Law - Management help in California