Nature

Kiva

BY THE NUMBERS: Since 2005, more than 628,000 ­citizen lenders have provided $248 million in microloans to small entrepreneurs in developing countries WHO'S IN CHARGE: Matt Flannery,...

Rainforest Alliance

BY THE NUMBERS: More than 167 million acres of forests worldwide are now rated as sustainable under Rainforest Alliance’s certification systemWHO'S IN CHARGE: Tensie Whelan, 51, a...

IOBY

BY THE NUMBERS: IOBY (In Our Back Yards) has raised more than $130,000 for 100 neighborhood environmental projects in New York since 2009.WHO...

American Trails

BY THE NUMBERS: The world’s largest advocacy group for planning, building, and managing trails and greenwaysWHO'S IN CHARGE: Pam Gluck, 54, former state trails ­coordinator for...

The Marine Mammal Center

BY THE NUMBERS: 30,000 people schooled in marine-science programs each year; approximately 17,000 marine mammals rescued since its inceptionWHO'S IN CHARGE: Executive director Jeffrey R....

Jon Rose

In September 2009, California surfer Jon Rose was sailing toward the island of Sumatra, carrying ten water filters that he planned to deliver to a rural community while enjoying a surf trip in...

Amy Purdy

Purdy is one of the country’s most effective advocates for disabled outdoor athletes, and she came to her work the hard way: by losing both legs below the knees when she was 19. In the...

David Belt

In July 2009, in a blighted junkyard along the borough’s Gowanus Canal, a tree grew in Brooklyn—actually, a tree, a bocce court, lounge chairs, and three swimming pools made from...

World Wildlife Fund

BY THE NUMBERS: More than $1 billion invested in roughly 12,000 projects in 100 countries since 1985 WHO'S IN CHARGE: Carter Roberts, 51, a Harvard MBA who spent 15 years leading domestic,...

Vital Voices Global Partnership

BY THE NUMBERS: 10,000 emerging women leaders trained in 127 countries since 1997 WHO'S IN CHARGE: Alyse Nelson, 37, former deputy ­director of the Vital Voices Global Democracy...

Technoserve

BY THE NUMBERS: Since 2010, an estimated 40,300 people employed in 30 countries with the help of Technoserve’s programsWHO'S IN...

Pathfinder International

BY THE NUMBERS: More than 3.75 million people received HIV and AIDS services through Pathfinder-supported projects in 2010 WHO'S IN CHARGE: In February, Purnima Mane will take over as...

Health in Harmony

BY THE NUMBERS: 14,000 patients treated in Health in Harmony’s Indonesia clinic since 2007 WHO'S IN CHARGE: Kinari Webb,...

American Rivers

BY THE NUMBERS: 200 dams dismantled since 1998WHO'S IN CHARGE: CEO and president Bob Irvin, 52, a veteran attorney and environmentalist who most recently served as senior vice president...

Trekking for Kids

BY THE NUMBERS: Nearly $400,000 raised for ten orphanages in developing countries since 2005 WHO'S IN CHARGE: José Montero, 40, president of the Montero Group, a D.C.–based...

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