# Landmark Management

Landmark Management is a Multi Family Office based in New York, United States.

## Overview

- **Organization type:** Multi Family Office
- **Headquarters:** New York, United States
- **Region:** North America
- **Address:** New York, NY, United States
- **Founded:** 1997
- **Assets under management:** Undisclosed
- **Website:** landmark-mgmt.com
- **LinkedIn:** https://www.linkedin.com/company/landmark-management

## Regulatory record

- **CRD number:** 157511
- **SEC file number:** 801-73439
- **Registration status:** APPROVED
- **Latest Form ADV filing:** 2026-03-30T05:00:00.000Z
- **Reports private funds:** Yes
- **Private funds reported:** 0
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/157511

## About

Landmark Management traces its roots to 1997 when Earl “Trip” Samson III and Allyson D. Samson established the firm following their tenure at Compton Capital Partners. The wealth under management originates from the founders’ investment advisory practice rather than a single industrial fortune. Services center on portfolio construction, tax planning and consolidated reporting for a limited number of families. The firm allocates across early-stage venture, growth equity, secondaries, hedge funds, private equity and real estate. Confirmed positions include Sakonnet Vineyards and Landmark Vineyards. It also operates a Qualified Opportunity Fund focused on mixed-use assets in the United States. Geographic reach covers North America and Europe. Investment types include fund-of-fund commitments, direct co-investments and alternative venture structures. Landmark employs an undisclosed number of professionals and maintains its headquarters in New York. In June 2023 Rosemont Investment Group acquired a 40% minority stake, with Markel Corporation providing backing to Rosemont’s permanent-capital model. Adjacent vehicles include LMI Partners, LLC. Earl Samson previously served as Founding President of Sakonnet Point Club and Chairman of the Board of Trustees at Darrow School. Ownership structure features an external minority partner alongside the founding principals, creating a hybrid governance model uncommon among traditional multi-family offices. Succession planning centers on J. Daniel Graham as co-managing partner. Philanthropic activity appears through support of the East Harlem Tutorial Program and the John A. Hartford Foundation, kept separate from investment operations.

## Sectors

- PropTech
- Healthcare Services
- Digital Health
- ClimateTech
- EdTech
- FinTech
- AgriTech & FoodTech
- Energy Transition & Renewables

## People

- Earl “Trip” Samson III — Founder and Co-Managing Partner
- Allyson D. Samson — Partner and Co-Founder
- J. Daniel Graham — Co-Managing Partner

## Questions

### Who runs investment decisions at Landmark Management?

Earl “Trip” Samson III and J. Daniel Graham serve as co-managing partners. Allyson D. Samson participates as partner and co-founder. The three named principals oversee portfolio construction and external relationships.

### What asset classes does Landmark Management deploy into?

Allocations span early-stage venture, growth equity, secondaries, hedge funds, private equity and real estate. The firm also maintains a Qualified Opportunity Fund. Direct holdings include Sakonnet Vineyards and Landmark Vineyards.

### Which geographies receive capital from Landmark Management?

Primary activity occurs in North America and Europe. Real-estate and opportunity-zone investments remain concentrated in the United States.

### What recent ownership change occurred at Landmark Management?

In June 2023 Rosemont Investment Group purchased a 40% minority stake. Markel Corporation backs Rosemont’s permanent-capital vehicle. The transaction introduced an external partner while the founding principals retained control.

### Does Landmark Management participate in co-investments or fund commitments?

Both structures appear in its activity. The firm makes fund-of-fund commitments and executes direct co-investments alongside external managers. Secondaries and alternative venture models supplement the mix.

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- [East End Advisors](https://altss.com/profile/east-end-advisors)
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Last updated: 2026-06-03T20:00:00.000Z

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