Multi-Family Office

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GSK & Partners

GSK & Partners opened in Geneva in 2021, formed by two private-banking veterans, Steve Klemme (ex-Head of Middle East at Barclays Private Bank) and George...

GSK & Partners logo

GSK & Partners

GSK & Partners opened in Geneva in 2021, formed by two private-banking veterans, Steve Klemme (ex-Head of Middle East at Barclays Private Bank) and George Sarkis (former Managing Director at JPMorgan Private Bank for the Middle East). The shop was founded explicitly to sit on the same side of the table as the families it advises — the founders cite the product-push conflict embedded in most private-banking models as the reason they built an independent partnership. The firm draws most of its early client relationships from the Middle East, where Klemme and Sarkis built their careers. Investment strategy spans direct co-investments, special-purpose vehicles (SPVs), and private equity exposures, with a single disclosed sector focus in Marketing & Sales. The firm runs an advisory overlay for Lebanese insurer LIA Assurex, managing investment portfolios under a mandate that bridges Lebanon and Switzerland. Confirmed geographic activity is currently limited to Europe; additional regional mandates are not publicly detailed. The team numbers nine professionals, including CIO Patrick Karawani — another JPMorgan Private Bank alumnus — plus portfolio management, relationship, compliance, and associate functions. Founder Steve Klemme is also tied to the Young Presidents' Organization (YPO) through his prior Middle East leadership roles, a peer network that can surface deal flow for family-office principals. Career-disclosed philanthropic ties point to Creighton University and the Lincoln Community Foundation in the United States. GSK & Partners is unusual among Geneva MFOs for launching bottom-up from Middle East private-banking coverage rather than from Swiss domestic wealth management. That origin gives the firm an advisory architecture shaped by the legacy mandates of two regions — Swiss regulatory and booking infrastructure layered onto a Gulf-family relationship network.

General information

Firm type

Multi Family Office

Year founded

2021

Location

Region

Europe

Country

Switzerland

City

Geneva

Corporate office

Geneva, Switzerland

Principals

Steve Klemme

Founder and CEO

George Sarkis

Founder and Managing Partner

Patrick Karawani

Chief Investment Officer & Portfolio Manager

Gianluca Giuliano

Portfolio Manager

Pierre Melki

Senior Relationship Manager

Carole Ursenbacher

Compliance Officer

Raphaël Botteron

Associate

Alexandra Pellizari

Associate

Sector focus

Private Equity

Frequently asked questions

Who runs investment decisions at GSK & Partners?

Patrick Karawani serves as Chief Investment Officer and Portfolio Manager. Steve Klemme and George Sarkis set overall direction as founders.

How does GSK & Partners source proprietary deal flow?

The firm relies on the Middle East networks developed by its founders during their tenures at JPMorgan Private Bank and Barclays Private Bank.

Is GSK & Partners structured as a single family office or does it operate more like a venture firm?

It functions as a multi-family office that executes direct co-investments and SPVs alongside advisory and estate-planning services.

Does GSK & Partners participate in fund commitments or only direct deals?

Public materials reference both direct co-investments and private equity exposure, without disclosed fund commitments.

Where does the underlying wealth come from?

The firm’s client base stems from the founders’ prior work managing wealth for families in the Middle East.

Profile maintained by 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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