Jonathan Marks – Principal / Design Director
An honors graduate from Syracuse University, Jonathan has over 20 years of industrial design experience. Before
cofounding JAM-Proactive Jonathan perfected his skills working with several of the country’s top ID firms.
Winner of numerous IDSA and CES Design awards he is listed on dozens of design patents. Jonathan has taught
design courses at the university level and continues to be involved in higher education. His work has appeared
in multiple international publications, on television and at the Cooper Hewitt National Design Museum.
David McDonald – Principal / Engineering Director
David has a proven track record of successfully bringing a number of diverse products to market. He is a Certified
Engineering Provider for PTC with over 20 years of engineering experience. He has consulted at several of the
industry’s top design firms before cofounding JAM-Proactive. David has taught and structured PRO/Engineer
courses in the master merge modeling technique and “top down” design. He has also authored articles on advanced
geometric surfacing. David has extensive experience with Asian cultures and manufacturers, and frequently travels
to China, Japan, and Taiwan to oversee the manufacturing.