Charities verified through IRS Form 990

Organisations whose evidence is an IRS Form 990 — the annual return every US 501(c)(3) must file — served from ProPublica's mirror of the IRS release.

• The Nature Conservancy — Protects ecologically important lands and waters globally
• 350.org — Builds a global grassroots climate movement
• Trees for the Future — Forest Garden agroforestry programme — trains farmers in sub-Saharan Africa.
• The Trevor Project — 24/7 crisis support for LGBTQ+ young people in the US
• Trickle Up — Supports women in extreme poverty to launch micro-livelihoods
• Trout Unlimited — Conserves cold-water fisheries and their watersheds
• Trust for Public Land — Creates parks and protects public land in the US
• Tunnel to Towers Foundation — Pays off mortgages for fallen first-responder & catastrophically-injured veteran families.
• To Write Love on Her Arms — Hope and help for people struggling with depression, addiction, self-injury and suicide
• UNICEF USA — Funds UNICEF's global child-survival programs
• UnidosUS — Largest US Hispanic civil-rights & advocacy org (formerly NCLR — National Council of La Raza).
• United Cerebral Palsy — Independence and inclusion for people with cerebral palsy and other disabilities
• US Committee for Refugees and Immigrants (USCRI) — Refugee resettlement + global advocacy via World Refugee Survey.
• VillageReach — Strengthens vaccine cold-chain and last-mile health logistics
• Vital Voices Global Partnership — Invests in women leaders solving the world's hardest problems
• Waterkeeper Alliance — Connects 350+ local Waterkeeper groups defending clean water worldwide
• Watsi — Crowdfunds individual medical care for people worldwide
• World Food Programme USA — Funds the UN World Food Programme's hunger-relief operations
• Whale and Dolphin Conservation (US) — US arm of UK-headquartered cetacean-conservation charity — anti-captivity, anti-whaling, research.
• The Whale Sanctuary Project — Building the first seaside sanctuary for whales and dolphins
• Wikimedia Foundation — Hosts Wikipedia and the free-knowledge sister projects
• WildAid — Reduces consumer demand for illegal wildlife products
• The Wilderness Society (US) — Protects US public wild lands — Wilderness Act of 1964 advocate, federal land-management policy.
• Wildlife Alliance — Direct frontline rainforest and wildlife protection
• Wildlife Conservation Network — Funds independent in-country conservationists protecting endangered wildlife
• Wildlife Conservation Society — Protects wild places and wildlife in 60+ countries
• World Animal Protection — Global animal-welfare advocacy and disaster response
• World Central Kitchen — Chef-led emergency food relief in disaster and conflict zones
• World Resources Institute — Research-driven climate, food, water and forest policy
• World Vision (US) — Christian humanitarian organisation working in nearly 100 countries
• Wounded Warrior Project — Programs for post-9/11 veterans — mental health, physical health, financial wellness, peer connection.
• World Wildlife Fund (WWF-US) — Conserves nature and reduces threats to biodiversity
• Year Up United — One-year skills training and internships for young adults
• Yellowstone Forever — Official non-profit partner of Yellowstone National Park — wildlife, trails, education.