Relevant Experience

An experienced team of life science and medical imaging personnel with over six decades of combined technology company experience lead Cubresa, which was founded in 2011 and was the first to commercialize silicon photomultiplier (SiPM) array technology for nuclear medical imaging applications. Cubresa is headquartered in Winnipeg, Manitoba.


James Schellenberg – Founder, CEO and CTO

James Schellenberg, Founder and CTO, has participated in start-up technology companies from 1989 to the present. He has executive management experience with Broadband Networks Inc., Nortel Inc., Centara Corporation, James Schellenberg Inc. and most recently with IMRIS Inc. He has participated both as an investor and contributor for numerous technology based companies, including Texar Corporation, Edge Networks Inc., Esion Networks Inc., Photonami Inc. and iMagicTV.  James graduated with a Ph.D. in Electrical Engineering from the University of Manitoba in 1990 and has filed over 10 patents.

John Saunders – Chief Science Officer

Dr. John Saunders has over 40 years experience in the science and technology realm, in particular with MRI imaging technology. John was the founder and original CEO of IMRIS. He was one of the inventors of the original intraoperative MRI scanner and later served as CSO of IMRIS. He has over 400 peer-reviewed publications, as well as 6 granted US patents and 12 US patents pending.

Bob Schellenberg – Director Operations & Quality

Bob Schellenberg is Director of Operations & Quality. Prior to Cubresa, he was Production Supervisor at IMRIS Inc. from 2006-2011. Prior to IMRIS, Bob founded and operated a design and manufacturing company, HRS Enterprises. Bob has extensive experience in prototype and production manufacturing, assembly and test. He has filed 1 patent.

Michael Simpson – Director Sales & Marketing

Michael Simpson has extensive start-up experience, having spent six years at IMRIS, three years at Ceyba, and two years at Broadband Networks. He most recently served at IMRIS as Product Marketing Manager for a portfolio of medical device products, helping the company achieve a leadership position in the intraoperative MRI-guided neurosurgery market and a successful NASDAQ initial public offering. Michael has a B.Sc. in Computer Engineering from the University of Manitoba.