Find the Leak · Fix the Weakness · Rebuild the Revenue
For Private Banking

Most private-banking relationships break in one momentwhen the money passes to the children.

Vault finds the leak — and trains your bankers to keep the family when the wealth changes hands.

US$83.5T
Transferring · 2048
81%
Heirs who switch banks
221,000
APAC ultra-high-net-worth · $30M+
2,400
Singapore family offices · 2025
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01 · The Numbers

The biggest handover of wealth in history is happening now.

Clients stay loyal for decades. Then the money passes to the children — and most of them leave.

US$83.5T
Wealth changing hands by 2048
81%
Heirs who switch banks within 1–2yrs
+38%
APAC ultra-high-net-worth growth by 2031
50 → 2,400
Singapore family offices · 2018–2025

Sources · Knight Frank 2026 · Capgemini 2025 · Monetary Authority of Singapore

02 · Where It Leaks

Where a private bank quietly loses revenue.

Six leaks we find again and again. Most get blamed on the banker — wrongly.

Pattern 01 · Tend

No plan for when the money passes to the children

The client passes away, and the family moves to whichever bank calls first. Almost nobody rehearses for this moment.

Structural × Operational
Pattern 02 · Engage

The wrong banker on the wrong client

A bold client with a cautious banker drifts away politely. The bank blames skill. The WHALE Code™ shows the real cause: the pairing.

Behavioural × Structural
Pattern 03 · Cultural

One banker holds the whole relationship

Senior bankers keep clients to themselves because the pay rewards it. When that banker leaves, the clients leave with them.

Cultural · 12–36mo · Slowest fix
Pattern 04 · Hunt

Chasing the crowded middle

Teams drift towards $5–$30M clients, where every bank fights hardest — while the $30M+ families wait.

Strategic · 6–18mo
Pattern 05 · Value

Sounding like every other bank

A dozen credible banks in Singapore, one identical pitch. Sound the same and you compete on price.

Strategic
Pattern 06 · Research

Missing the people who really decide

Spouse, lawyer, eldest child — the client is rarely the only voice. Vault’s Hidden-Influencer Map shows who actually decides.

Operational · 30–90d to install
03 · A Worked Example

What the fix looks like in practice.

Anonymised, from Marcus’s own career: casino premium clients and private-banking clients are won — and kept — the same way.

+67% South Asia · No Debt Funding
Annual Revenue Growth · 4 markets · Malaysia · Indonesia · Singapore · Thailand · Indochina

The Diagnosis

Same team, same products, flat revenue. No clear rules on which buyers to chase — and 47% of the top-20 clients had the wrong handler.

The Fix

Rules written and enforced. The top-20 re-paired by match, not seniority. A set rhythm of contact for every client.

The Outcome

67% annual revenue growth across four South Asian markets — no new debt, no new headcount. Discipline, not spending.

The Lesson

The biggest leak is rarely skill. It is who serves whom. Re-pair the top clients and the revenue follows.

04 · Working With Vault

Three ways to start.

Every engagement begins with the Audit. Fees are fixed, and shared in the first conversation.

On enquiry
The Standard Audit

A full check of where your client base leaks: top-20 profiles, banker–client pairings, lost deals, handover readiness.

On enquiry
The Core Programme

The full Vault method across your team. The WHALE Code™ decides who serves whom. Marcus leads the key milestones.

On enquiry
Embedded Engagement

Vault as standing adviser, quarter after quarter, with Marcus personally on the account.

For the Head of Private Banking · Division Head · MD

The clients you built. The leak you can’t see.

A thirty-minute call. Marcus listens, then tells you honestly whether a paid audit is worth it. No pressure.

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