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Executive General Adjuster

Sean Mathiesen

Executive General Adjuster


Sean has been handling claims since 1996. He began his career with Safeco Insurance as a Property Claims Representative. In 2000, he then moved on to the independent adjusting side of the industry and took a position as a multi-lines adjuster with Jim Buckley and Associates (JBA). In 2008, Sean then took a position as a General Adjuster with Fireman’s Fund and went on to handle large losses for personal and commercial lines. After a brief hiatus as an Estimator and Project Manager with a local general contractor in Southern California, Sean accepted a position with Cunningham Lindsey/Sedgwick in 2015. While there, he was promoted to the Major and Complex Loss (MCL) Division and was a protégé studying under a senior EGA. He was also selected and attended Sedgwick’s Generation Next /EGA Training. Following his time with Cunningham Lindsey/Sedgwick, Sean again joined with JBA as an Executive General Adjuster in 2019.


  • Dairy Farm: Sprinkler loss (USD 500 K)
  • Horse Ranch: Wildfire (USD 1.5 Million)
  • Winery: Fire (USD 1 Million)
  • Manufacturing Facility: Flood (USD 1.2 Million)
  • Multi-Family Residence: Hurricane Katrina and Wilma (USD 5.0 Million)
  • Retail: Hurricane Irma (USD 4.0 Million)
  • Real Estate: Hurricane Matthew (USD 1.4 Million)
  • Retail: Water Damage (USD 1 Million)
  • Hospitality: Water Damage (USD 1.5 Million)
  • High-Net Worth: Mudslide (USD 50 Million)
  • Commercial Property: Hail (USD 10 Million)

Office Address / Contact Information

500 W. Colorado St., Unit C
PMB 144
Glendale, CA 91204
Local Time:
Local Date:

Industry Certification

CA Earthquake Certified, NFIP Certified (FEMA), Xactimate training


Associate of Science in Fire Science & Prevention - Santa Ana City College

Additional Expertise

Retail, Builder's Risk, Complex Property Account Management, Energy, Catastrophe, Multi-Family Residential, Healthcare, Higher Education, Hospitality, Manufacturing, High Net-Worth/Private Client, Public Entities, Real Estate, Religious Institutions

Adjuster Experience

28 years 1996