- Handbook of Texas Online: Irving - History of the city.
- Humane Animal Rescue Team - Non-profit organization dedicated to rescuing adoptable companion animals. Adopt-a-Pet events, pictures and descriptions of available animals, volunteer opportunities, and general pet care articles.
- Irving Genealogical Society - Non-profit corporation since 1991. Provides information about the organization, officers, schedule for meetings, books, publications for sale and contact information.
- The Las Colinas Association - Created as a non-profit corporation in 1973. Provides various services and enforces deed restrictions for its members in the Las Colinas development.
