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

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Reviews

4.5 / 5

39 Reviews

1,045 Profile Views

Jonathan Konopelski

Feb 05, 2026

Solid work and professional service from Jonas Trevethan in Irvine for California residents

I appreciate how Jonas Trevethan handled my case. No fluff, just straight to the point and very effective representation for my Labor and Employment Law - Management matter. They are obviously very ex...

Marion Mueller

Feb 05, 2026

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

Super helpful and professional staff at Jonas Trevethan's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and legal ex...

Angelo Marks

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...

Cesar Franey

Feb 05, 2026

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

Really glad I found Jonas Trevethan for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in C...

Clayton McGlynn

Feb 05, 2026

Absolutely Great! I couldn't be happier with the service from Jonas Trevethan

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...