The Quill Family includes not only individuals, but also business and charitable interests, hyper-technologies, and so forth.
The Quill family oversees the Quill Organization, including Quill Technologies and the Quill Foundation. The organization is headquartered in Halcyon City; the HQ also includes extensive living quarters for the Quill family (currently occupied solely by Jason).
Jason rides on a standard-model Quill hover-disc.
Quill Industries created the Q-Phone, a durable and reliable cell phone.
Byron and Rusty operated a flying vehicle called the Dragonfly. This is the vehicle Mercury recognized in the Sepiaverse. The Dragonfly currently is mothballed at a private field outside Halcyon City.