Profound Capital · Private Investment Office · Jakarta, Indonesia
Sumadi Surianto
Managing Partner · Investment Advisor
Two decades of building enduring portfolios for Indonesian families, entrepreneurs and institutions — with a global lens, a preservation-first mandate, and regulation you can verify.
20+
Years Experience
$450M
Assets Under Management
38
Client Families
4
Jurisdictions
About
Twenty years of conviction, quietly compounded.
Sumadi Surianto is Managing Partner of Profound Capital, a private investment office he founded in 2024 after more than twenty years managing private and institutional capital across Jakarta, Singapore and New York.
Profound is a licensed Investment Advisor (Penasihat Investasi) supervised by Otoritas Jasa Keuangan (OJK) — the Indonesian Financial Services Authority — and operates under the regulatory framework that governs all discretionary and advisory mandates in Indonesia.
Sumadi began his career on the credit trading desk at Morgan Stanley in Singapore, moved into discretionary portfolio management at Temasek Advisors, and was most recently Head of Private Wealth overseeing more than $2 billion in client assets before leaving to build a firm on his own terms.
His investment philosophy is unapologetically long-term: preserve capital through cycles, compound patiently, and treat every client relationship as a multi-generational commitment. Profound is his expression of that philosophy at boutique scale.
Approach
Four principles. No exceptions.
01
Capital Preservation First
Rule one: lose no money. Rule two: remember rule one. Compounding works, but only if you give it time — and you can only give it time if you have not been forced to sell at the wrong moment.
02
Long-Term Compounding
Our horizon is measured in decades, not quarters. We size positions accordingly, tolerate volatility willingly, and refuse to chase narratives that do not align with how wealth is actually built.
03
Global Diversification
We allocate across Indonesian, regional and developed markets — with a bias toward durable businesses we can understand, hold through cycles, and explain to a client in one sentence.
04
Aligned Incentives
Profound invests alongside its clients. We charge modestly, disclose fully, and accept no product commissions or rebates. Our outcomes are your outcomes — by design, in writing.
Services
Three mandates. One standard of care.
01 · From $5M AUM
Discretionary Portfolio Management
Custom portfolios built around your objectives, tax situation and liquidity needs. Daily oversight, monthly reporting, and a direct line to the person making the decisions.
02 · Retainer or project basis
Wealth Advisory
For clients who manage their own capital but want a thinking partner. Quarterly strategic reviews, research access, and a second opinion on every significant allocation.
03 · From $25M AUM
Family Office Services
Consolidated reporting across managers, banks and jurisdictions. Succession planning, next-generation education, philanthropic structuring and family governance.
Insights
Notes from the desk.
Fed Holds Rates Steady as Powell Signals Patience on Inflation Glidepath
The Federal Reserve left its benchmark rate unchanged for a third straight meeting, with Chair Jerome Powell emphasizing that policymakers are in no rush to cut despite cooling price data.
Nvidia Posts Record Revenue as Data-Center Demand Shows No Sign of Cooling
The chipmaker’s fiscal first-quarter sales topped $32 billion, with data-center revenue up 78% year-on-year as hyperscalers accelerate AI infrastructure buildouts.
IDX Composite Breaks Out to Six-Month High as Foreign Buying Returns
Indonesian banks and energy majors led a broad rally, with net foreign inflows reaching $420 million over five sessions — the longest streak of the year.
New Clients
Start a conversation.
Engagements begin with a private, no-obligation conversation to understand your situation, your objectives and whether Profound is the right fit. We work with a deliberately small number of clients.
sumadi@profound.id →Existing Clients
Access your terminal.
Clients have access to a secure Bloomberg-style terminal for portfolio review, performance analytics and market intelligence — refreshed continuously, available from anywhere.
Sign In →