Sarah Brooks Gabriel
Partner & CEO, BHRC
Partner. Chief Executive Officer of Beverly Hills Rejuvenation Center. Former Partner at Kirkland & Ellis.

Credentials
- Partner of Motivant
- Chief Executive Officer, Beverly Hills Rejuvenation Center (appointed October 1, 2025)
- Former Partner, Kirkland & Ellis LLP
- B.S. Finance and MBA, Southern Illinois University
- J.D., Vanderbilt University Law School
- Board of Advisors, Vanderbilt University Law School
- Prior C-suite operating experience at a private-equity firm and a publicly traded company
About
Sarah Brooks Gabriel is a partner of Motivant and the operating Chief Executive Officer of Beverly Hills Rejuvenation Center. The firm acquired BHRC on October 1, 2025 — the load-bearing transaction in Motivant's life-sciences portfolio — and named Sarah CEO at announcement. She moved into the operating chair on day one of the acquisition.
Before joining the family office, Sarah was a Partner at Kirkland & Ellis LLP — one of the most active private-equity transaction firms in the world — where her client base was primarily PE-owned operating companies in acquisition, scale, and exit modes. She left K&E after making partner to refocus around family, and subsequently held C-suite operating roles at both a private-equity firm and a publicly traded company before moving into Motivant. The combination of transactional depth and operating-seat experience is what she now brings to BHRC and to the firm's broader partnership work.
Sarah holds a B.S. in Finance and an MBA from Southern Illinois University and a J.D. from Vanderbilt University Law School, where she serves on the Board of Advisors. Her recent press footprint reflects her work as the operating face of BHRC — KTLA on longevity medicine, the Super Bowl LX week regenerative-health panel in San Francisco, the FranchiseWire HireWire profile of her appointment, and Adam Mendler's Thirty Minute Mentors interview.
At BHRC, Sarah is operating a 22-location consumer-facing clinic chain across California, Nevada, Texas, Arizona, and New Jersey, with a clinical bench built to deliver Cell Factor regenerative protocols at scale. The West Hollywood Center of Excellence opened on November 20, 2025 as the brand's new flagship under her leadership. Her work at BHRC is the consumer-facing instantiation of the diagnostics-to-protocols-to-delivery thesis the rest of the firm is building.
Beyond BHRC, Sarah is the partner-side voice of the firm — the principal most often in the room with potential operating partners and the lead on the firm's partnership development work. Her own background — the oldest of five in a rural community, raised by parents who built and ran restaurant and hotel businesses — is the connective tissue between her operating instinct and the family-office posture Motivant takes toward every business it partners with.
Portfolio Work
Companies Sarah operates alongside.
The businesses in Life Sciences, Restaurants, Hospitality — where Sarah’s operating work lands week to week.
RestaurantsActiveLayne's Chicken Fingers
Fast-casual chicken-finger brand — Motivant operates as franchisee, not franchisor.
1994
Brand founded
Franchisee
Motivant position
Life SciencesActiveMarquis Labs
Full-service clinical laboratory anchoring the diagnostics layer.
~1%
Sample rejection rate
3×
Faster than baseline
~24hr
Result turnaround
HospitalityActiveMarriott-branded Properties
Franchisee-side hotel position — flag, sub-brand, and unit count not publicly disclosed.
Franchisee
Position type
Marriott
Brand affiliation
Life SciencesActiveCellestiq
Sister molecular-lab brand co-located with Marquis.
Oklahoma City
Lab base
Ledesma lab ecosystem
Affiliation
RestaurantsActiveThe Halal Guys
NYC-origin halal fast-casual — Motivant operates as franchisee, not franchisor.
1990
Brand founded
Franchisee
Motivant position
Life SciencesActiveRio Grande Valley Labs
High-complexity CLIA lab in South Texas.
CLIA, high-complexity
Certification
1M+
Results to date
Alamo, TX
Base
The Rest of the Team
More of the principals behind the firm.
Sam Brooks
Co-Founder & Partner
Co-founder of the firm. Twenty years scaling laboratory and telecom operations into hundred-million-dollar businesses.
Sanjiv Lal
Co-Founder & Partner
Co-founder of the firm. Twenty-four years in pharma, biotech, and molecular genetics. Founded three labs.
Sal Afridi
Chief Financial Officer
Chief Financial Officer. Twenty years in healthcare and startup finance. Built and ran a hospital startup.
Jeff Muoio
Member & Executive Advisor
Member of the firm. Former COO of MasTec North America. Founding Executive Director of HomeAid America.