| BONNEVILLE ENVIRONMENTAL FOUNDATION | PORTLAND, OR | program funder | 2 |
| COMMUNITY FOUNDATION FOR SOUTHERN ARIZONA | TUCSON, AZ | program funder | 2 |
| ENTERPRISE HOLDINGS FOUNDATION | SAINT LOUIS, MO | large program funder | 2 |
| STEVEN C LEUTHOLD FAMILY FOUNDATION | BREVARD, NC | program funder | 2 |
| ADLER SCHUPPERT FAMILY FOUNDATION | WILMINGTON, DE | program funder | 1 |
| ALBEN F BATES AND CLARA G BATES FOUNDATION | ELMHURST, IL | program funder | 1 |
| ALLEN FAMILY FOUNDATION | BLOOMFIELD HILLS, MI | program funder | 1 |
| ANN AND GORDON GETTY FOUNDATION | SAN FRANCISCO, CA | program funder | 1 |
| ARIE AND IDA CROWN MEMORIAL | CHICAGO, IL | program funder | 1 |
| BARNES FAMILY FOUNDATION | TUCSON, AZ | program funder | 1 |
| BISSELL PET FOUNDATION | GRAND RAPIDS, MI | program funder | 1 |
| BORGEN FAMILY FOUNDATION | DENVER, CO | program funder | 1 |
| BUSTER BROWN DROOPINGTON FUND | PENNINGTON, NJ | program funder | 1 |
| D AND R CHARITABLE FUND | OAK LAWN, IL | program funder | 1 |
| DEANE FAMILY FOUNDATION INC | KEY LARGO, FL | program funder | 1 |
| DON BENNETT MOON FOUNDATION INC | PRESCOTT, AZ | program funder | 1 |
| DONALD PITT FAMILY FOUNDATION | TUCSON, AZ | program funder | 1 |
| ECK FAMILY FOUNDATION | CHENEQUA, WI | program funder | 1 |
| EDWARD M & HENRIETTA M KNABUSCH CHARITABLE TRUST 2 | | program funder | 1 |
| ENVIRONMENTAL DEFENSE FUND INCORPORATED | NEW YORK, NY | program funder | 1 |
| EVIM FOUNDATION | TUCSON, AZ | program funder | 1 |
| EVO AND ORA DECONCINI AND THU FAMILY FOUNDATION | TUCSON, AZ | program funder | 1 |
| EVOLVE FOUNDATION | SHREVEPORT, LA | program funder | 1 |
| FANWOOD FOUNDATION | NEWTON, NJ | program funder | 1 |
| FRED MAYTAG FAMILY FOUNDATION | SAN FRANCISCO, CA | program funder | 1 |