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

1,044 Profile Views

Elisa Gutmann

Feb 05, 2026

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

Jonas Trevethan is fantastic and very professional. Don't hesitate to hire them if you're in California and need help. They really know their stuff and will go the extra mile to make sure you're taken...

Willie Sipes

Feb 05, 2026

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

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...

Shelly Schroeder

Feb 05, 2026

A very good experience overall with the entire team at Jonas Trevethan's legal practice

I've worked with a few lawyers in Irvine over the years, but Jonas Trevethan stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I felt c...

Lloyd Hessel

Feb 05, 2026

A very good experience overall with the entire team at Jonas Trevethan's legal practice

Solid experience overall with the law firm of Jonas Trevethan. They know Labor and Employment Law - Management inside and out and gave me great advice. Very helpful and got the job done exactly as the...

Kathleen Kassulke-Bins

Feb 05, 2026

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

Jonas Trevethan has been doing this since 2026, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in California. Their expe...