61.1 F
Laguna Hills
Saturday, Jul 4, 2026

OC500 2025: GREG CUSTER 

GREG CUSTER 

EVP  

WHITTIER TRUST 

WHY: Oversees Newport Beach office of West Coast’s oldest and largest family office, a trust that made its money discovering oil in Bakersfield and founding Beverly Hills. Whittier now has 300 outside family clients with $29B in assets. Named 2020 Man of Character by OC Boy Scouts. Boards of OC YMCA and United Way. 

IN THE NEWS: Whittier Trust Newport Beach office often ranked highly on OCBJ’s Best Places to Work for midsize companies. 

NOTABLE: In line to become president of Pasadena Tournament of Roses in 2032. 

QUOTABLE: “The recently passed Big Beautiful Bill is prompting wealthy families to sharpen their financial strategies rather than overhaul them. With expanded estate tax exemptions, revised SALT deductions, and renewed Qualified Opportunity Zone legislation, affluent individuals are recalibrating how they manage wealth across generations.” 

Want more from the best local business newspaper in the country?

Sign-up for our FREE Daily eNews update to get the latest Orange County news delivered right to your inbox!

Would you like to subscribe to Orange County Business Journal?

One-Year for Only $99

  • Weekly in-depth coverage in print and digital formats
  • Special Features: OC's Wealthiest, Top Priced Home Sales, Giving Guide, OC500, Charity Event Guide, Best Places to Work, Indispensables, Largest Charitable Gifts
  • The annual Book of Lists: Orange County's top companies across every industry

Featured Articles

Related Articles