Air Alliance Houston

Nonprofit

Advocates for clean air and environmental justice in Houston's most pollution-burdened communities through advocacy and monitoring.

Nonprofit urban wilderness preserve offering 5 miles of walking trails, pontoon cruises, kayak tours, nature education for all ages, and community science near Clear Lake.

Bayou City Waterkeeper

Nonprofit

Monitors and advocates for swimmable, fishable, drinkable waterways across the Houston region through science and community action.

Bayou Preservation Association

Nonprofit

Houstons longest-running environmental nonprofit — protecting and restoring bayous and streams for over 55 years.

Buffalo Bayou Partnership

Nonprofit

Transforms Houston's most iconic waterway into a vibrant public greenway through restoration, programming, and flood resilience.

Advances environmental and climate justice research and advocacy rooted in Dr. Robert Bullard's groundbreaking work at TSU.

Citizens Environmental Coalition

Nonprofit

Connects 100+ environmental organizations across Greater Houston through dialogue, education, and collaboration since 1971.

Environmental justice and civic power — organizing Houston neighborhoods to build climate resilience.

Houston aquarium and entertainment complex featuring marine exhibits, animal encounters, and conservation education programs in downtown.

Statewide federation connecting 70+ environmental and conservation nonprofits through workplace giving campaigns, corporate partnerships, and custom volunteer events across Texas.

Nonprofit managing Evelyns Park in Bellaire, providing green space, community events, and nature programming for families in southwest Houston.

Galveston Bay Foundation

Nonprofit

Preserves and enhances Galveston Bay and surrounding watersheds through conservation, advocacy, and education programs.

Preserving and enhancing Greens Bayou for flood control, parks, and trails that connect Houston communities through partnerships and public engagement along one of Houstons key waterways.

HARC

Nonprofit

Conducts independent research on air quality, water resources, and climate to inform policy and strengthen Gulf Coast resilience.

Urban nonprofit farm promoting teaching, inspiring, and empowering healthy eating through farmer training, cooking classes, gardening sessions, and community programs in Third Ward Houston.

155-acre nonprofit nature sanctuary providing education about the natural environment and protecting native plants and animals through trails, gardens, and programs for all ages.

Houston Audubon

Nonprofit

Protects 17+ bird sanctuaries and natural habitats across Houston while building a community of conservation-minded residents.

Houston Parks Board

Nonprofit

Connects Houstonians through green spaces — 250+ parks, 160 miles of Bayou Greenways, 14,000+ acres since 1976.

Houston Wilderness

Nonprofit

Connects 1,800+ square miles of green infrastructure across the Gulf Coast through conservation, education, and regional collaboration.

Plant Baby Plant

A grassroots movement led by Robin Wall Kimmerer inviting people to reimagine our relationship with the land through planting and community gardening.

TEJAS

Nonprofit

Empowers Houston's fence-line communities to fight for clean air and environmental justice through monitoring, education, and direct action.

Since 1991, fighting for safe healthy communities across Texas by amplifying voices of communities most impacted by pollution and advocating for clean air, clean water, and environmental justice.

Trees for Houston

Nonprofit

Plants and protects thousands of trees annually across Houston neighborhoods, parks, and esplanades to build a greener, cooler city.

Urban Harvest

Nonprofit

Empowers Houstonians to grow food through community gardens, fruit tree programs, farmers markets, and hands-on education.