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MillhouseIAG
MillhouseIAG manages the wealth of Roman Abramovich, built from the 2005 $13B Sibneft sale, with offices in Cyprus, Australia, and the US.
MillhouseIAG
Roman Abramovich founded MillhouseIAG to manage the proceeds from the 2005 sale of his 72.7% stake in Sibneft to Gazprom for $13.1 billion (per The Wall Street Journal, 2005). The fortune was built through the privatization of Russian state assets in the 1990s, including the acquisition and consolidation of Sibneft and stakes in Russian aluminum and aviation. The family office's wealth origin is publicly tied to these energy and metals transactions, with Abramovich as the sole identified principal. MillhouseIAG deploys capital across asset classes including global public equities, private equity, venture capital, real estate, and hedge fund allocations. The office has held significant stakes in Evraz, one of Russia's largest steel producers, and has been a prolific investor in UK and US commercial real estate. Confirmed positions include a portfolio of prime London residential and commercial properties, a stake in the Chelsea Football Club before its 2022 sale (per the UK government's sanctions list, 2022), and investments in technology startups through the San Francisco office. The geographic footprint spans Europe, North America, and Australia, reflecting a multi-jurisdictional strategy designed for asset protection and diversification. Geopolitical sanctions imposed in 2022 forced a restructuring of the office's operations, leading to asset freezes and the forced divestiture of Chelsea Football Club. The office maintains a presence in Brisbane and San Francisco, suggesting a pivot toward stable Western jurisdictions for residual capital deployment. In May 2022, the firm completed the sale of Chelsea FC to a consortium led by Todd Boehly and Clearlake Capital for £4.25 billion (per the UK government and Premier League, May 2022), effectively ending a two-decade trophy asset chapter. MillhouseIAG's structural differentiator lies in its origins as a single-principal vehicle molded by the specific legal and political risks of post-Soviet wealth. The office operates not as a growth-seeking venture platform but as a defensive custodial structure, using a network of offshore entities and multi-jurisdictional offices to insulate assets. This architecture, combined with a small, trusted inner circle rather than a large institutional team, distinguishes it from Western multi-family offices that emphasize transparency and scalable operations.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
Europe
Country
Cyprus
City
Limassol
Corporate office
Limassol, Cyprus
Additional offices
Brisbane, Australia · Moscow, Russia · San Francisco, United States
Principals
Roman Abramovich
Principal
Sector focus
Frequently asked questions
Who runs investment decisions at MillhouseIAG?
Roman Abramovich is the principal and ultimate decision-maker for all material allocations. The office employs a small team of investment professionals across its four offices, but investment authority remains highly centralized with Abramovich and a small circle of long-tenured deputies, consistent with the single-family office model built around an individual's risk tolerance and liquidity needs.
How is MillhouseIAG structured given the 2022 sanctions?
Following sanctions imposed in March 2022, many of Abramovich's assets were frozen in the UK and EU. The office was forced to liquidate certain holdings, most notably Chelsea Football Club. The Cyprus headquarters and offices in Brisbane and San Francisco likely hold unencumbered or restructured assets, though the full post-sanctions architecture is opaque by design.
What is MillhouseIAG's known posture on direct investments versus fund commitments?
The office has historically favored direct investments, particularly in real estate and private equity. While it likely maintains allocations to external hedge funds and venture funds through its San Francisco and London networks, its most visible positions — Evraz, Chelsea FC, UK real estate — have been direct, controlling or significant minority stakes rather than limited partner commitments.
Does MillhouseIAG maintain philanthropic structures?
Abramovich has conducted philanthropy, notably through large donations to Jewish causes, cultural institutions, and the Chelsea FC Foundation, but there is no public evidence of a formal, separately incorporated foundation equivalent to those of Western tech philanthropists. Giving appears ad hoc rather than institutionalized.
Which sectors does MillhouseIAG explicitly avoid?
The office has avoided direct involvement in politically sensitive Western defense, semiconductor manufacturing, and critical infrastructure, reflecting the geopolitical constraints on its principal. Investments have clustered in property, sports, media, and basic materials — sectors with lower regulatory friction for a Russian-origin fortune.
Profile maintained by Altss 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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