About GSE

“We founded GSE to fill a gap in the market we experienced firsthand as operators: a one-of-one SME investment firm made by operators, for operators.”

Shervin Mirhashemi

Our team is founded and led by SME executives with a track record of building and scaling SME businesses

Our Strategy

We seek to position GSE Partners as the partner of choice for SME businesses due to our depth of experience, enabling lasting value creation and collaborative partnership.

GSE Partners originates from the entrepreneurial legacy of The Graham Group, which is comprised of eight independent investment firms, dozens of operating businesses, and four philanthropic entities. These investment firms manage private capital for institutions including public pension funds, leading university endowments, charitable foundations, other financial institutions, and for the Graham family.

Our Approach

Graham Heritage

Evolving from a modest start in a farmhouse basement in Central Pennsylvania, the Graham Group traces its origins to the entrepreneurial legacy of Don Graham, an engineer who built and ran several global advanced manufacturing businesses, launched from his farmhouse basement office in rural Pennsylvania’s York County.

Today, the Graham investment businesses own controlling or substantial direct interests in roughly three dozen operating businesses, spanning industries that range from industrial technologies to advanced manufacturing to software development, health care, education, and sports.

The Graham Group
Why GSE Partners?

Our Differentiation

Operational
Expertise

Founded by a team of seasoned operators with decades of hands-on leadership across various SME businesses.

Expertise

Investment
Pedigree

Originates from the entrepreneurial legacy and investment pedigree of The Graham Group (est. 1960).

Investment

Strategic
Access

Offers access to off-market sourcing and proprietary deal flow for growth opportunities through an extensive network of sector experts.

Access

Investment Entities

A sports, media, and entertainment adjacencies (SME) investment firm.
The internal investment office of The Graham Group, managing Graham family capital.
A private investment firm providing growth capital to companies in the distributed healthcare service business in the United States.
Frontline Healthcare Partners
A private investment firm investing in advanced manufacturing and industrial technology, both buyouts and growth equity.
Graham Partners
Striker Partners is the single family office managing the assets of Richie Graham and his family.
Striker Partners
A private investment firm acquiring high-growth, innovative manufacturing, technology and services companies.
Inverness Graham
A private investment firm investing growth stage, venture, and buyout stage capital in software, electronic gaming, education, and other sectors.
Graham Software Development
A private investment firm making direct equity co-investments with independent sponsors and small general partners in existing portfolio companies and continuation vehicles.
Graham Capital Investments
Our private investment firms are funded with a combination institutional private capital and internal Graham family funds and share a common goal to bring a collaborative investment approach to all of our business relationships.