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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Floresta USA Incorporated Plant with purpose, a christian nonprofit organization, reverses deforestation and poverty around the world… 33-0052976 · FY2023 San Diego, CA $14.7M $12.5M $7.7M 74% 18% 46 501(c)(3)
California Assoc of Resource Conservation Districts To advance the conservation and orderly development of land, water and other natural resources in California… 94-1553749 · FY2024 Sacramento, CA $12.5M $12.5M $5.1M 92% 0% 11 501(c)(3)
Quail Botanical Gardens Foundation We garden to create, share and apply plant wisdom in our world. 95-6120581 · FY2024 Encinitas, CA $11.1M $9.5M $15.3M 76% 3% 53 501(c)(3)
California Invasive Plant Council Cal-IPCs protects Californias environment and economy from invasive plants. We run science-based programs to… 68-0289333 · FY2024 Berkeley, CA $5.2M $5.3M $3.0M 93% 1% 6 501(c)(3)
Sequoia Riverlands Trust SRT engages landowners, farmers, conservationists, business partners, and governmental agencies in the… 77-0347417 · FY2024 Visalia, CA $4.1M $3.1M $49.4M 53% 13% 29 501(c)(3)
Botanical Society of America INC Botanical Society of America ("BSA") is a not for profit membership society that exists to promote botany… 62-0671591 · FY2023 Saint Louis, MO $2.6M $2.6M $9.2M 85% 1% 10 501(c)(3)
Redwood Coast Land Conservancy We conserve lands for recreational, educational, ecological, agricultural, scenic and open space… 68-0287719 · FY2024 Gualala, CA $1.5M $321.7K $5.1M 96% 0% 1 501(c)(3)
Endangered Habitats League INC LONG-TERM LAND USE PLANNING STRATEGIES The Endangered Habitats League is dedicated to protecting the many… 95-4455451 · FY2025 Los Angeles, CA $1.1M $1.3M $1.2M 97% 0% 2 501(c)(3)
California Institute for Biodiversity Create and publish educational materials, conduct professional development, promote awareness, and sponsor… 94-3227003 · FY2024 Berkeley, CA $846.3K $6.4M $18.9M 96% 0% 1 501(c)(3)
Agroecology Commons Educate farmers about agroecology. 85-3343221 · FY2024 El Sobrante, CA $829.5K $921.9K $112.0K 35% 4% 5 501(c)(3)
Pacifica-A Garden in the Siskiyous INC Pacifica is a unique 400 acre natural reserve dedicated to education and to the celebration of plants, the… 93-1258154 · FY2024 Williams, OR $810.8K $724.5K $4.6M 80% 5% 25 501(c)(3)
Kansas Bioscience Organization INC Biokansas is the unified voice representing the biosciences in KANSAS. Across the human, plant, animal and… 20-0013564 · FY2024 Shawnee, KS $668.6K $685.5K $58.3K 63% 8% 9 501(c)(3)
Refugia Marin Our mission is to create thriving habitat gardens for local pollinators and wildlife. We transform neglected… 92-0458533 · FY2025 Larkspur, CA $657.7K $499.5K $306.1K 94% 3% 3 501(c)(3)
Genetic Information Research Institute Maintenance and expansion of specialized databases relating to repetitive DNA sequences. 77-0396481 · FY2023 E Palo Alto, CA $506.3K $447.2K $2.4M 85% 0% 3 501(c)(3)
Humboldt Redwoods Interpretive Association Provide INTERPRETIVE materials on redwood state parks 94-2598084 · FY2024 Weott, CA $446.0K $312.9K $835.9K 57% 2% 4 501(c)(3)
Troy Nature Society Knowledge and appreciation of NATURE areas and wildlife. 80-0619054 · FY2024 Troy, MI $440.9K $350.7K $235.8K 58% 19% 15 501(c)(3)
California Open Lands Preserve and manage OPEN space, exchange scientific information, and foster the conservation of california's… 20-2142754 · FY2023 Chico, CA $419.7K $453.0K $878.4K 62% 0% — 501(c)(3)
Bioscience Los Angeles County INC BIOSCIENCE LOS ANGELES COUNTY or biosciencela was formed in 2018 to create, enable, and promote an enviable… 83-2720515 · FY2024 Culver City, CA $360.2K $1.4M $1.0M 39% 6% 5 501(c)(3)
Northern California Regional Land Trust Conservation of agricultural lands, open space, wildlife habitat and natural resources within butte, glenn… 68-0216430 · FY2024 Chico, CA $328.7K $437.4K $5.9M 31% 7% 3 501(c)(3)
Rancho Santa Fe Garden Club Further the development of charitable horticultural conservation activities within outside the community of… 95-1944234 · FY2024 Rcho Santa Fe, CA $306.9K $342.7K $51.8K 69% 6% 1 501(c)(3)
Southern California Branch-American Society for Microbiolgy Provide scientific education 95-4151267 · FY2024 S Pasadena, CA $293.4K $267.4K $246.0K 73% 0% — 501(c)(3)
Colorado Native Plant Society Furthering the knowledge, appreciation and conservation of native plants and habitats of Colorado through… 84-0734596 · FY2024 Aurora, CO $245.8K $222.9K $709.6K 79% 7% 3 501(c)(3)
California Rare Fruit Growers INC Education in growing rare fruit plants 23-7082170 · FY2024 Calabasas, CA $237.3K $173.6K $2.4M 77% 0% — 501(c)(3)
American Society of Plant Taxonomists Provide information to botanists 37-0952268 · FY2024 Washington, DC $234.0K $131.5K $2.3M 75% 0% — 501(c)(3)
The Biodiversity Group We protect Life Overlooked through ground-breaking expeditions developing novel technologies and supporting a… 20-3091062 · FY2023 Tucson, AZ $189.9K — $151.8K — — — 501(c)(3)
Blue Mountains Biodiversity Project 37-1831335 · FY2024 Fossil, OR $185.4K — $153.1K — — — 501(c)(3)
The Wild Neighbors Database Project Wildlife rehabilitation 46-3151740 · FY2024 Middletown, CA $153.3K $47.6K $170.3K 100% 0% — 501(c)(3)
New England Botanical Club INC The mission of the New England Botanical Society (sic New England Botanical Club, Inc.) is to increase the… 04-6042239 · FY2024 Cambridge, MA $130.8K $96.7K $2.9M 60% 0% 1 501(c)(3)
Society for Biodiversity Preservation 82-2245785 · FY2025 Washington, DC $122.8K — $14.0K — — — 501(c)(3)
The California Forest Foundation To foster public understanding of forest ecosystems in California by providing balanced, science-based… 68-0022596 · FY2024 Sacramento, CA $110.9K $205.1K $652.0K 84% 0% 3 501(c)(3)
California Native Grass Association 68-0239825 · FY2024 Davis, CA $105.6K — $162.3K — — — 501(c)(3)
Meadowview Biological Research Station Preserving and restoring rare wetland plants and their associated habitats on the coastal plain of maryland… 54-1904513 · FY2024 Woodford, VA $98.5K $157.9K $1.8M 100% 0% 1 501(c)(3)
International Working Group on Taxonomic Databases 30-0377683 · FY2024 San Francisco, CA $97.2K — $326.0K — — — 501(c)(3)
Conservation Agency Ecological and systematic investigations in biological diversity for wildlife and ecosystem conservation. 05-0392995 · FY2024 Jamestown, RI $78.1K $22.0K $287.1K 90% 0% — 501(c)(3)
California Forest Conservation Foundation 85-4293819 · FY2024 Sacramento, CA $68.3K — $290.1K — — — 501(c)(3)
California Garden and Landscape History Society 94-3235964 · FY2024 Newhall, CA $62.1K — $44.6K — — — 501(c)(3)
California Botanical Society 94-6091639 · FY2024 Berkeley, CA $53.9K — $293.1K — — — 501(c)(3)
Useful Wild Plants of Texas Research, compile and disseminate educational information. Produced 4 volumes of encyclopedias; working on… 74-2613666 · FY2024 Austin, TX $39.9K — $403.0K — — — 501(c)(3)
Sunshine State Biodiversity Group 92-1840649 · FY2024 Tallahassee, FL $2.5K — $17.3K — — — 501(c)(3)
2,046,138
nonprofits
212,946
funders
12,515,252
grants
22,549,931
directors
214,365
service providers
549,896,012
financial lines
Public data from IRS Form 990 e-file & Business Master File. A 990 shows reported financial activity, not measured program outcomes. Assets are from the IRS BMF and may lag the latest filing; fundraising cost is fundraising expenses as a share of total expenses. · philanthropy.org