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Multi Family OfficeInvests directly in companiesLAST VERIFIED Oct 2026 · 2 SOURCES

HMSA Group

London-based firm (HMSA Limited, incorporated 2013) led by Geoff Melamet; listed as a multi-family office. Official site blocks automated access.

USEFUL FOR Co-investors

Identity

HEADQUARTERS
London, United Kingdom
FOUNDED
2013

Investment approach

SECTORS
FintechHealthTechReal Estate & PropTech
ROUTES
Companies (direct)

Overview

HMSA Limited was incorporated in London in October 2013 and is active at Companies House, with Geoffrey Melamet, Marc Pimstein and Dirk Prieur du Plessis as directors. A separate HMSA Group Limited was registered at the same London address in June 2026. The firm's own website refuses automated access, so its services and investment activity could not be confirmed from a primary source.

People

  • Geoff Melamet
    Founder and Director · source
  • Marc Pimstein
    Director (CFO per import) · source
  • Prieur du Plessis
    Director · source
  • Jonathan Melamet
    Director of HMSA Ireland · source
  • Eric Hohberger
    Director · source

Frequently asked questions

HMSA Group is a multi family office based in London, the United Kingdom, founded in 2013.

HMSA Group invests directly in companies. Capital origin: client families' capital.

HMSA Group invests in Fintech, HealthTech and Real Estate & PropTech.

Key people at HMSA Group include Geoff Melamet (Founder and Director), Marc Pimstein (Director (CFO per import)), Prieur du Plessis (Director) and Jonathan Melamet (Director of HMSA Ireland).