8 Billion Opportunities: On November 15, 2022 humanity's population eclipsed 8 billion people. What Does This Mean?

Staff & Boards


We love to roll the credits, celebrating our dedicated community of team members, social scientists, supporters, and advocates. We maintain offices in South Burlington, Vermont; Los Angeles, California; and in active countries around the world. We also have staff who work remotely from around the world, including Washington DC, New York, Montreal, and Botswana.

William Ryerson, MPhil

President & Founder of PMC
Bill Ryerson

Ronald Ahirirwe

Country Director, Uganda

Ana Akin

Program Associate
ana staff profile

Elizabeth Borg

Vice President of Development
Liz Borg headshot

Ryan Burke

Fundraising & Marketing Database Administrator
Ryan Burke

Natalia Cereser

Director of Program Design & Innovation
Natalia Cereser

Hope Craig

Senior Research Analyst
Hope Craig

Jean Luc Dushime

Program Manager

Katie Elder

Development Specialist
Katie Elder

Hailegnaw Eshete, PhD, MPH

Country Director, Ethiopia

Carolyn Gilbert

Senior Program & Partnership Development Associate

Christina Guérin

Country Director, Haiti

Todd Hawk

Director of Information Technology
Todd Hawk

Wame Jallow

Vice President of International Programs
Wame Head shot

Barbara Johnson

Human Resources Services Manager
Barbara Johnson

Susan Jones

Senior Finance Associate
Susan Jones

Sandy Joseph, MA

Program Manager
Sandy Joseph

Charles Kalonga, MBA

Country Director, Zambia

Tom Kazungu

Country Director, Kenya

Jean Bosco Ndayishimiye

Country Director, Burundi

Ephraim Okon

Country Director, Nigeria

Berlyn Olibrice

Program Manager
Berlyn Staff Bio Photo

Cecilia Orvañanos

Country Director, Mexico

Rajan Parajuli

Country Director, Nepal

Cody Peluso

Digital Advocacy & Mobilization Manager
Cody Peluso and his dog

Kelsey Perrotte

Administrative Coordinator
Kelsey Perrotte

William J. Rider, CPA

Vice President of Finance

Lamoussa Robgo

Country Director, Burkina Faso

Clinton Sears

Director of Research, Evaluation, and Impact
Clinton Sears

Wendi Stein

International Programs Operations Manager

Stephanie Tholand, MPA

Director of Program & Partnership Development

Missie Thurston

Director of Marketing and Communications
Missie Thurston

Charity tooze

Impact & Partnerships Strategist
Charity Tooze

David Walker, MBA

Executive Vice President
David Walker