Pantheon has 189 employees (as of 1st May 2013) with US$24.0 billion in assets under management (as of 30th September 2012). Pantheon has invested in more than 1,000 private equity funds since its inception in 1982.

Pantheon is owned by senior members of the Pantheon team and Affiliated Managers Group, Inc. This ownership structure, with Pantheon management owning a meaningful share of the equity in the business, provides a framework for long-term succession and enables Pantheon management to continue to direct the firm’s day-to-day operations.

Originally formed in 1982 as the private equity investment division of GT Management in London, Pantheon's management acquired the private equity division in 1988 through a management buyout. Pantheon was then acquired by Russell Investments in 2004.

The development of Pantheon’s business over the past 30 years is shown below: