Single Family Office

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RLB Holdings

Ray and Lydia Bartoszek's family office deploys evergreen capital across biotech, industrial tech, and sports media from Greenwich, CT.

RLB Holdings

RLB Holdings was formed in 2011 by Ray and Lydia Bartoszek to manage the wealth generated during Ray's two decades of commodity trading at Texaco and Glencore, combined with his stake in the New York Yankees. The firm operates from 343 Greenwich Avenue, channeling personal capital into a mix of private operating businesses, startup equity, and real assets. The firm's deployment spans direct co-investments and SPVs across early-stage and growth-stage biotechnology, industrial technology, and consumer wellness companies. Its physical-asset footprint is a differentiator: RLB owns the Horseheads Sand and Transloading Terminal in upstate New York, a facility tied to the fracking supply chain, alongside commercial properties in North Carolina and Virginia. Confirmed investment themes include supply-chain logistics, mobility, and proprietary sports-and-media interests, anchored by the Bartoszek family's stake in the Yankees and the YES Network. Ray Bartoszek, a 1986 graduate of the U.S. Merchant Marine Academy who serves on the Brunswick School board, runs the firm with his wife Lydia and a lean team listed as Ana Angeles, Ryan Bartoszek, and Jesse Gallagher. The family's philanthropic vehicle is the Bartoszek Family Foundation. RLB maintains club relationships with the Yellowstone Club community in Montana, overlapping with a network that includes co-investors in Yankees Global Enterprises. The dual structure – an industrial operating company paired with a venture-stage portfolio – sets RLB apart from most single-family offices of similar vintage. The Bartoszeks run the firm as an active holding company, not a passive allocator, combining commodity-derived hard-asset cash flows with private-equity-style equity positions.

General information

Firm type

Single Family Office

Year founded

2011

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Greenwich

Corporate office

343 Greenwich Avenue, Suite 200, Greenwich, CT 06830

Principals

Ray Bartoszek

Founder and Managing Partner

Lydia Bartoszek

Co-founder and Managing Partner

Sector focus

Healthcare ServicesMarketing & SalesSports & WellnessSupply Chain & LogisticsMobility & TransportationPropTechIndustrial TechAI/MLBiotechConsumer TechCybersecurityEnterprise Software

Frequently asked questions

Who runs investment decisions at RLB Holdings?

Ray and Lydia Bartoszek co-lead the firm as managing partners, per the firm's own contact page. Ray Bartoszek brings two decades of commodity-trading experience from Texaco and Glencore, where he served as President of Glencore Ltd, while Lydia Bartoszek co-founded the office alongside him. Day-to-day execution is supported by a compact team that includes Ryan Bartoszek, Ana Angeles, and Jesse Gallagher.

How does RLB Holdings source proprietary deal flow?

The firm's deal flow originates from Ray Bartoszek's deep network across commodities, logistics, and professional sports ownership. His status as the youngest limited partner of the New York Yankees and his Yellowstone Club membership provide access to a tight co-investor circle that includes Yankee Global Enterprises stakeholders. The operating assets, such as the Horseheads Sand Transloading Terminal, also generate on-the-ground industrial relationships.

Is RLB Holdings structured as a single family office or does it operate more like a venture firm?

RLB Holdings is legally a single-family office but functionally operates as a hybrid holding company. It backs early- and growth-stage technology and healthcare companies while simultaneously owning and operating hard-asset industrial businesses, such as a fracking-sand transloading terminal. This dual posture – institutional venture investing alongside direct operating-company control – is uncommon among single-family offices of its 2011 vintage.

Does RLB Holdings participate in fund commitments or only direct deals?

The Altss-sourced research record confirms that RLB Holdings executes Direct Co-Investments and SPVs as its primary structures. There is no public evidence of the firm making traditional limited-partner commitments to blind-pool funds. The Bartoszeks appear to prefer bespoke structures that provide direct economic exposure to operating companies, real estate, and sports franchises.

What sectors does RLB Holdings explicitly avoid?

The firm's confirmed sector focuses – spanning healthcare services, supply-chain and logistics, sports and wellness, and industrial tech – suggest an avoidance of pure-play software-as-a-service and consumer-packaged-goods bets. RLB's capital flows toward hard-asset infrastructure and life-science innovation rather than asset-light recurring-revenue models.

How is RLB Holdings related to the New York Yankees?

Ray Bartoszek is a limited partner in Yankee Global Enterprises, the holding company that owns the New York Yankees and a stake in the YES Network. This is a personal asset held through the family office, making RLB a co-investor alongside other Yankees ownership-group members, including wealth manager Barry Klarberg. The stake is a core piece of the family's wealth origin and ongoing sports-media exposure.

Does RLB Holdings operate any philanthropic structures?

The Bartoszek Family Foundation is the family's philanthropic vehicle. Ray Bartoszek also serves on the board of trustees of the Brunswick School in Greenwich, and the family supports the USMMA Alumni Association and Foundation, reflecting Ray's 1986 graduation from the U.S. Merchant Marine Academy.

Profile maintained by using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.

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