State Organizations
- SFASU Arthur Temple College of Forestry & Agriculture
- Texas A&M Forest Service
- Texas A&M University Department of Ecology & Conservation Biology
- Texas A&M AgriLife Extension Service
- Texas Department of Agriculture
- Texas Forest Information
- Texas Forestry Museum
- Texas Project Learning Tree
- Texas Society of American Foresters
- Texas Tree Planting Guide
- Texas Urban Forestry Council
- Trinity Waters
National Organizations
- American Forest & Paper Association
- American Forest Foundation
- American Loggers Council
- American Tree Farm System
- Association of Consulting Foresters
- Forest Resources Association
- National Arbor Day Foundation
- National Alliance of Forest Owners
- National Project Learning Tree
- Official Smokey Bear Website
- Railway Tie Association
- Society of American Foresters
- Sustainable Forestry Initiative®
- Temperate Forest Foundation
- The Nature Conservancy
- USDA Forest Service
- USDA Forest Service (Texas)
- WSRI (Wood Supply Research Institute)