- zenithair.com: The U.S. based kit manufacturer's website. Zenith Aircraft Company manufactures the line of two-seat all-metal aircraft designs by Chris Heintz. This website also has extensive resources on Chris Heintz design and construction techniques.
- zenair.com: The official website for Chris Heintz light airplane designs around the world.
- zenair.org: Published since 1974, the Zenair Newsletter continues to be the official source of news and updates about the line of Zenair aircraft. Published six times per year, and now includes a DVD with every issue!
- zenith.aero: The online community for active builders and pilots of Zenith Aircraft kits (Chris Heintz / Zenair light airplane designs). This site is the companion website to the Zenair Newsletter, and is a great free resource for Zenair builders and pilot.
- zenairULM Europe: The online home for Zenair across Europe