Our Leadership Team


Chief Executive Officer Tom Pokorsky

Tom is a water veteran who joined Nexom as CEO in early 2016, Among other CEO appointments, Tom has served as President of ITT Industries – Advanced Water Treatment. In this role, and his previous Presidential roles with the predecessor companies Sanitaire Division of ITT Flygt and Water Pollution Control Corporation, Tom led the growth from several million to $350M. 

President Martin Hildebrand

Martin Hildebrand, P.Eng, is both President and Head of Research and Development for Nexom. He started Nexom's founding predecessor, Nelson Environmental, in 1997, and in the subsequent 20 years he has focused on pioneering cold-water municipal and industrial lagoon-based wastewater treatment systems. That experience includes research and wastewater technology development as well as process design and optimization of over 200 projects across North America and the Middle East. He is a Civil Engineering graduate of the University of Manitoba. 

Chief Financial Officer Matt Korcinsky

Another veteran of the water industry, Matt Korcinsky provides leadership to Nexom's financial and investor-relations teams. Matt has executed numerous financings across a variety of industries and led several enterprises focused on water to high growth. Matt earned his Bachelor of Science degree in finance and management from Georgetown University and received his MBA from the Mendoza College of Business at the University of Notre Dame. 

Vice President of Operations Katharine Oswald

Katharine Oswald, B.Sc. PMP, leads the Nexom Operations team. As the company’s second-longest serving employee (after Nelson Environmental’s founder), Kathy has managed or supervised around 400 projects and brings a wealth of experience that enables the company to leave the fulfillment of its promises in the capable hands of her field operations, procurement and project management teams. Kathy earned her Bachelor of Science degree in Environmental Science from the University of Manitoba.

Director of Engineering Lionel Ens

As Director of Engineering, Lionel Ens, P.Eng..guides a team of top design engineers who assist outside consulting engineers by providing final design-ready drawings that integrate Nexom's exclusive technologies to solve wastewater treatment problems. Lionel has worked with first Nelson Environmental and now Nexom for 15 years, and previously worked as a consulting engineer for a number of years before that. Lionel is an Engineering graduate of the University of Manitoba.

Project Development Manager Merle Kroeker

Merle Kroeker, P.Eng, is the Project Development Manager with Nexom, leading a team of Regional Managers that have coordinated hundreds of projects over his 13 years with the organization. He is directly involved in wastewater treatment process design and optimization, with substantial experience handling lagoon-based municipal and industrial wastewater treatment projects across the United States and Canada..