Horowitz Group
Also known as The Horowitz Group
Newport Beach single family office with roots in ready-mix concrete. Invests in private businesses, real estate and alongside alternative investment managers.
USEFUL FOR Fund managers raising capital · Founders · Business owners seeking a long-term partner · Co-investors
Single family office in Newport Beach, California, with roots in the ready-mix concrete industry. Not linked to Ben Horowitz or Andreessen Horowitz, or to other firms named Horowitz Group.
Family & background
- FAMILY
- Horowitz
- WEALTH ORIGIN
- Ready-mix concrete
- HEADQUARTERS
- Newport Beach, United States
- OUTSIDE CAPITAL
- No — own capital only
Investment approach
- GEOGRAPHY
- United States
- STAGES
- Series ASeries B
- ROUTES
- Companies (own capital) · Funds (as LP)
- STRATEGIES
- Direct investmentsReal estatePrivate equity
- LATEST DEAL
- Osanni Bio (Series B) · Jun 2026
- INBOUND
- Accepts submissions
Overview
Horowitz Group is a single family office in Southern California whose wealth comes from the ready-mix concrete industry. It makes minority and control equity investments in US-based businesses, direct and sponsored real estate investments, and allocates capital to and co-invests with investment managers focused on private equity, specialty finance and emerging managers. It says it invests only its own capital and can hold assets indefinitely. Its website lists it as a founding investor in Osanni Bio, Tarsus and Vibrato Medical, and lists realized positions in Sprouts Farmers Market (founding investor) and CoStar Group (early investor).
Investment thesis
Says its investment philosophy is centered on aligning interests and patient capital: as a family office investing its own capital, it can own an asset indefinitely and partners with like-minded operators.
Holdings & investments (12)
- Osanni BioNOTABLEBiotech & Life Sciences · Founding investor
- TarsusNOTABLEBiotech & Life Sciences · Founding investor
- Sprouts Farmers MarketNOTABLEConsumer & E-commerce · Founding investor (realized)
- HealthTech · Founding investor
- CoStar GroupSoftware & SaaS · Early investor (realized)
- Lemonade Restaurant GroupConsumer & E-commerce · Early investor (realized)
- Country Archer Jerky CompanyFood & Agriculture · Partnered with Monogram Capital
- GroundswellPartnered with Washington Harbour Partners
- CenegenicsPartnered with ROCA Partners
- Oceans HealthcarePartnered with ROCA Partners (realized)
- Stone Ridge Asset ManagementShareholder
- Longtail Re Ltd.Investor
People
Frequently asked questions
Horowitz Group is a single family office based in Newport Beach, the United States.
Horowitz Group invests on behalf of the Horowitz family (Ready-mix concrete).
Horowitz Group invests its own capital into companies and in third-party funds as an LP. Its stated asset mix includes direct investments, real estate and private equity.
Horowitz Group invests at Series A and Series B stages.
Key people at Horowitz Group include David Horowitz (Chairman), Adam Horowitz (Chief Executive Officer), Jason Tester (President & CFO) and Chris Jacobson (Secretary – Treasurer).
Horowitz Group's holdings and investments include Osanni Bio, Tarsus, Sprouts Farmers Market, Vibrato Medical, CoStar Group, Lemonade Restaurant Group, Country Archer Jerky Company and Groundswell, among others.
The most recent publicly reported investment by Horowitz Group is Osanni Bio (Series B), announced in Jun 2026.
Horowitz Group states that it accepts submissions through its official contact page.
No. Horowitz Group invests its own capital and does not raise money from outside investors.