We have one object that Quadmark has been involved with.

Quadmark is also known as Quadmark Ltd..

If you would like to cite this person in a Wikipedia article please use the following template:

<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18041721/ |title=Quadmark |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=16 December 2017 |publisher=Smithsonian Institution}}</ref>