
Third Plateau is a full-service social impact and philanthropy consulting firm that partners with bold visionaries in the social and philanthropic sectors to drive meaningful and sustainable change. Our comprehensive services include strategic planning, philanthropic advising, foundation management, program design, research and evaluation, leadership development, network management, and back-office support. 

In 2023, Hirsch Philanthropy Partners – one of the first philanthropic advising firms in the U.S. – joined with Third Plateau, uniting two industry-leading teams. Together, we work with the nonprofit, philanthropic, and public sectors to craft enduring strategies that achieve transformative, community-centered impact. 

Charity

Consulting

Non Profit

Social Impact

Social Programs

Third Plateau

Jonathan Kaufman

Cait Fitzwater

Laura Mandel

Caitlin Elliott

Zafreen Jaffery

Erica Kashiri

Associates and Senior Associates

Leadership Team

Directors

Strategy Team

Research and Analysis

Finance and Operations

Teams at Third Plateau