Professional bullion custody is an institutional business. APX looks at LBMA vaults, non-bank custodians, allocation and why wealthy families diversify storage.
Executive Summary
The ultra-wealthy rarely store meaningful bullion in a domestic safe. At scale, physical gold becomes a custody problem: weight, insurance, audit, transport, jurisdiction and resale all matter. The institutional solution is professional vaulting in established bullion centres such as London, Zurich and Singapore, often with holdings split across more than one location.
The London Bullion Market Association says London vaults hold more than 8,000 tonnes of gold and 30,000 tonnes of silver. In the Loco London market, major custodians include HSBC, ICBC Standard Bank and J.P. Morgan, alongside specialist security carriers Brink’s, Malca-Amit and Loomis; the Bank of England also provides gold custody to eligible institutions and organisations.
Key Takeaways
- Institutional gold is normally held in specialist vaults, not private homes.
- London remains the world’s largest bullion trading centre and supports a deep ecosystem of bank and non-bank custodians.
- UHNW families often distinguish between the dealer that sells the metal and the custodian that stores it.
- Zurich and Singapore are popular alternative custody centres because they provide established precious-metals infrastructure and jurisdictional diversification.
- The most important protections are legal title, allocation, audit, insurance, controlled access and a practical exit route back into the wholesale market.
London: Depth and Market Connectivity
London’s advantage is not secrecy; it is market infrastructure. Good Delivery bars can sit within a system designed for large wholesale transactions, inspection and settlement. That can make resale and transfer efficient when custody remains inside the professional bullion chain.
The LBMA lists six principal vault custodians in the London market, split between bank clearing members and specialist security carriers. For a family office, this creates options: custody can sit with a bank relationship or with a specialist non-bank vault operator.
Zurich and Singapore: Jurisdictional Diversification
Switzerland has long been associated with precious-metals refining and vaulting, while Singapore has invested heavily in free-trade and secure-storage infrastructure. Providers such as Malca-Amit and Loomis operate across multiple global centres, allowing clients to separate legal jurisdiction from their country of residence.
Diversification is not automatically beneficial. A second vault adds account management, transport, audit and insurance complexity. The justification should be explicit: political diversification, proximity to Asian markets, inheritance planning, or operational resilience.
Allocated, Segregated and Auditable
The ownership language matters. Allocated metal is intended to represent specific physical bullion owned by the client; segregated custody may go further by physically or operationally separating the client’s holdings. Unallocated metal is usually a claim on a provider rather than title to specific bars.
A family office should request bar lists, serial numbers where relevant, independent reconciliation or audit procedures, insurance details and clear documentation of who owns the metal if the dealer, platform or custodian becomes insolvent.
APX Perspective
“Where do billionaires keep their gold?” has a surprisingly institutional answer: often in the same professional vaulting ecosystem used by banks, refiners and bullion traders. The more useful question is how that custody is structured. Geography matters, but title and operational control matter more. A London bar with perfect legal documentation can be safer than an exotic offshore holding whose ownership chain is unclear.
Frequently Asked Questions
Do wealthy families use bank safe-deposit boxes for bullion?
Sometimes for small quantities, but large holdings are more efficiently managed through specialist professional vaults designed for precious metals, insurance and wholesale transfer.
Why split gold between countries?
Possible reasons include jurisdictional diversification, access to regional markets and operational resilience. It also increases complexity and cost.
Is private vaulting the same as bank custody?
No. A specialist vault may provide storage without taking deposits or providing banking services. The legal custody contract is therefore particularly important.
Related APX Intelligence
Sources & Further Reading
APX Intelligence is provided for general information only and does not constitute investment, legal, tax, financial or custody advice. Private banking, commodities, gemstones and alternative assets involve jurisdictional, liquidity, valuation, counterparty and regulatory risks. Independent professional advice and due diligence are essential.
