Management Team


Jason Martin

Jason is an investor and operator, who has been on the board of iotum since 2006. He became CEO IN 2011.

In 1988, Jason co-founded Navantis and led growth as President for thirteen award-winning years. Navantis was sold to Datavail in 2017.

Jason has served boards for several North American private companies and he chaired one public company. He advocates for entrepreneurial spirit in young people and has mentored or taught for the University of Toronto, Queens University and for NEXT Canada. He has been an active member of YPO ( since 2004 and was YPO Toronto Chapter Chair 2015-2016. Jason’s business articles have appeared on and in Inc. Magazine.

Jason lives with his wife and children in Toronto.


Noam Tomczak

As head of operations, all technical and customer-provision aspects of iotum’s product development and network operations report to Noam.

Noam has been a member of the iotum team since the beginning and has architected a number of patented technologies for iotum’s web and switch platforms.

Noam built his exceptional skills in practical engineering working for next-generation IT hardware companies in Canada. He has designed algorithms for 3G mobile chipsets and has developed embedded computing systems for a variety of industrial uses. He has a knack for organizing teams and a passion for agile methodologies.

An avid outdoorsman and true-blood Canuck, Noam can start a roaring campfire using only coffee grounds and his fingernail. He plays hockey.

Noam graduated as an Electrical Engineer from McGill University in Montreal.

Noam lives with his wife and children in Toronto.


Graham Matthews

Graham manages administration and finance for iotum.

He has previously held CFO roles at Peraso Technologies, a fabless semiconductor start-up, and evandtec, a clean technology equipment company, and has spent over twenty years in the private equity investment field, including over a decade with two large Canadian venture capital firms.

Graham’s background in venture finance and technology management is extensive. Graham has served on several Board of Directors, including as Chairman of major host provider Q9 Networks. Graham holds the CFA and CPA (CMA) designations and is a graduate of McMaster University.

VP of Marketing

Sarah Jezek

As head of marketing, Sarah is responsible for all demand generation strategies and developing marketing programs to support organizational objectives that drive iotum’s premium revenue.

Before joining the iotum team, Sarah managed all marketing initiatives with a focus on demand generation and digital initiatives for technology vendors including Blueprint Software Systems and ADBASE Inc.

Her experience in technology and marketing also includes digital design, marketing research, public relations, event marketing, and experience in start-up environments.

Holding a degree in communications from Wilfrid Laurier University, Sarah has previously earned certificates in Copywriting, Advertising, Marketing and Professional French Translations from Humber College and the University of Toronto.

VP of Sales & Business Development

Gregg M. Jorritsma

Gregg joins Iotum to lead the company’s global direct and indirect sales efforts. In this role, he is responsible for sales strategy, revenue growth and partnerships with resellers and strategic alliances.

Over the last 25 years, Gregg has built a proven record of achievement in positions of increasing responsibility in sales and business operations with some of the most recognizable companies in technology including; Bell, Symantec, Siebel, Citrix, and BlackBerry.

Respected by his team and trusted by his channel partners, Gregg has a unique combination of talents ranging from channel relationships, channel programs, sales engagement, performance management, motivation, all focused on winning in the marketplace.

Gregg imagines the soundtrack of his life being written and performed by Elvis Costello and as a long-suffering Toronto Maple Leafs fan, he always maintains a positive and optimistic attitude to everything he does professionally and personally.

Gregg lives with his wife and two sons in Burlington.