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Laguna Hills
Friday, Jul 10, 2026

OC500 2025: GRANT REINDL 

GRANT REINDL 

CFO 

SALAS O’BRIEN 

 

WHY: Has led 20+ merger deals for one of OC’s fastest-growing private firms since joining the firm in 2020. Scheduled to complete eight acquisitions this year. Also leads the organization’s integrations, financial reporting, treasury, tax planning and financial planning functions. Company has 4K employees and 90 offices.  

IN THE NEWS: Salas O’Brien ranked No. 3 in the Business Journal’s annual list for fastest-growing large private companies, reporting 81% two-year growth to $834M for the period ended June 30. Goal of $1B in 2026. 

NOTABLE: Irvine-based engineering firm works on 18K projects annually, everything from audio and control processing for the Infrasound system in Las Vegas’ famous MSG Sphere to structural engineering on California’s first all-electric life science campus, the Avia Labs facility in Millbrae, to upgrading surgery suites and the emergency department at UCI Health’s main hospital in Orange. Named rising star at Business Journal CFO of the Year Awards in 2023. 

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