Hank and John Green co-found DFTBA Records (Don't Forget To Be Awesome), an online merchandise store catering to the Nerdfighter community and other creators. The store becomes a significant source of revenue and community engagement.

Hank establishes Complexly, a production company responsible for creating and managing many of his YouTube channels, including SciShow and Crash Course. Complexly becomes a major player in online education and content creation.

Hank and John create Subbable, a crowdfunding platform designed to allow creators to directly connect with their audience and receive ongoing support. Subbable is later acquired by Patreon.

Hank co-founded EcoGeek, an environmental consulting company focused on helping companies achieve their sustainability goals. This venture reflects Hank's commitment to environmental issues.

Hank founds Hank Green Games to explore new types of content and experiences.