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Multi Family OfficeAllocates capital directlyLAST VERIFIED Oct 2026 · 9 SOURCES

Also known as Arbion Limited

London investment management and advisory firm (FCA-regulated, SEC-registered) offering an outsourced investment office to families; USD 5.6bn under management and supervision.

USEFUL FOR Fund managers raising capital · Business owners seeking a long-term partner · Co-investors

Identity

HEADQUARTERS
London, United Kingdom
FOUNDED
2009

Investment approach

GEOGRAPHY
Global
ROUTES
Direct investments · Funds (as LP)
STRATEGIES
Private equityPrivate creditReal estatePublic equitiesHedge funds

Overview

Arbion Limited is an independently owned investment management and advisory firm at One Connaught Place, London, incorporated in 2009 and regulated by the FCA (FRN 513138) and registered with the SEC as an investment adviser. It describes an outsourced investment office for global families, alongside bespoke portfolios for private investors, charities, family offices and institutions, multi-asset and fund-selection mandates, and UCITS funds. Its platform lets clients participate in selected private equity, private debt and real estate deals that it diligences itself. It reports USD 5.6 billion in assets under management and supervision as of May 2026.

People

  • Marco Pabst
    Chief Investment Officer, Partner · source
  • Ammalan Annalingam
    Head of Multi-Asset Investments · source
  • Michael Rosenthal
    Head of Alternative Investments · source
  • Alex Jackson
    Investment Analyst · source
  • Belinda Everett
    Investment Analyst · source
  • Carnegie Smyth
    Chief Executive Officer, Partner (co-founder) · source
  • Greg Malone
    Partner (co-founder) · source
  • Alisevket Karaca
    Partner · source
  • Daniel Pasini
    Partner · source
  • Dotan Lieberman
    Partner · source
  • Egemen Edgu
    Partner · source
  • Jeremy Trabaud
    Partner · source
  • Richard Hanlon
    Partner · source
  • Simon Durrant
    Partner · source
  • Matthew Barnes
    Head of Fixed Income, Head of Credit · source
  • Robert Lee
    Head of MPS, Head of Rates · source
  • Robert Seiver
    Head of Risk · source
  • Neesha Jeshani
    Finance Director · source
  • Changmao Song
    Hedge Fund Analyst · source
  • Sachin Oberoi
    Financial Analyst · source

Classification

Multi Family Office. Provides family-office services to several families and invests or allocates their money — through mandates, its own programmes or club deals. Advice-only firms are not listed. How family capital is classified →

FAQ

Arbion is a multi family office based in London, the United Kingdom, founded in 2009.

Arbion invests directly in companies and in third-party funds as an LP. Its stated asset mix includes private equity, private credit, real estate, public equities and hedge funds.

Key people at Arbion include Carnegie Smyth (Chief Executive Officer, Partner (co-founder)), Greg Malone (Partner (co-founder)), Marco Pabst (Chief Investment Officer, Partner) and Alisevket Karaca (Partner).