Your partner in long-term investing

Who we are

A shared vision of success

GEM partners with a select group of endowments, foundations, sovereigns, families, and other long-term investors to protect and grow multi-generational capital. We craft sophisticated portfolios to meet clients’ objectives and deliver access to a diversified mix of asset classes and alternative investments.

Beautiful vortex-like pedestrian bridge
~$12B
in assets under management*
17
years creating client solutions*
~8
years average client tenure*

* As of July 1, 2025

Our approach

Partnership that builds on your strengths

As the investment office for our clients, we strive to be an integrated partner. We design portfolios around specific goals and constraints, including risk tolerances, liquidity requirements, and strategic plans. But we also look to build a deeper foundation of trust and rapport, standing ready to collaborate on a broad range of financial and organizational matters as if we were an embedded member of the team.

What you can expect from us

Boutique size and deep partnership

Custom portfolios aligned with your goals1

The resources and expertise of a leading investment office

Who we serve

Our client community

We proudly serve a select group of mission-driven nonprofits and long-term investors.

Endowments
Foundations
Family offices and wealth advisors
Other long-term investors
Stone street
Solutions

Investment solutions

We aim to translate our clients’ return goals, spending needs, and risk tolerance into an appropriate portfolio structure, then leverage our extensive networks and endowment experience to source and underwrite compelling manager and investment opportunities across asset classes. We use diversified custom and commingled structures to help ensure efficiency, fairness, and alignment across our clients. Both multi-asset and asset class–specific portfolios are built using a single, rigorous investment process.3

Recent Insights

GEM Makes Key Hire to Expand VC Capabilities

Kate Simpson and Jay Ripley spoke with James Comtois at Institutional Investor about Kate’s decision to join GEM, the evolution of the venture market, and how the firm is navigating current challenges and opportunities to meet the growing demand for access.

Kate Simpson Joins GEM to Lead Venture Capital Strategy

The firm announced that Kate Simpson has joined GEM as Managing Director on the Investment team. With more than 20 years of experience, she will help guide the firm’s venture capital strategy and further strengthen its investment platform.

Stephanie Lynch Named to P&I’s 2025 Influential Women in Institutional Investing

GEM is proud to announce that Managing Partner and Co-Founder, Stephanie Lynch, has been recognized by Pensions & Investments as one of the 2025 Influential Women in Institutional Investing, honoring leaders driving impact and positive change in the industry.

Connect with us

Let’s start a conversation about how we can help.

1Custom allocations require investing through a customized portfolio, which typically incurs a higher expense load than a commingled portfolio.

2 These individuals represent current clients invested with GEM. They have not been compensated or incentivized in any way for their comments, and GEM is not aware of any conflicts. The clients featured do not include all clients invested with GEM, and the comments provided are specific to these clients and not necessarily indicative of the experience of all GEM clients.

3 Returns are not guaranteed. Custom allocations require investing through a customized portfolio, which typically incurs a higher expense load than a commingled portfolio.