The NUMiX Team

Our team of professionals from Northwestern University have backgrounds in water treatment, environmental health and safety, chemical and mechanical engineering, materials science and law with the breadth and depth to understand and address your unique challenges with metal removal from water.

Katie Kollhoff


Katie has a Master’s of Engineering Management degree from Northwestern University with a background in chemical engineering. Katie has over ten years of experience consulting on chemical process performance and safety management with a range of clients from the chemical process industries to major food processing to R&D. Tackling big, worthwhile problems with a notable effect on people and the planet is her passion.

Matt Heise


Matt has over ten years of engineering and management experience in energy and water/wastewater process engineering, and graduate studies in business strategy, finance, accounting, and marketing. Matt has a background in mechanical engineering, a Master's in Engineering Management from Northwestern, and a passion for energy and water resource optimization.

Laurelle Banta


Laurelle Banta holds a Master’s of Science in Law degree from Northwestern with a background in mechanical engineering. Her expertise in intellectual property, complemented by her research experience in surface desalination and nuclear power and policy, makes her a unique asset to the team. Her interest in developing responsible radioactive waste remediation helps drive our team's passion to treat water better.

Ian Wiese


Ian Wiese leads process and application development at NUMiX. Having managed metal foundries for the past seven years, Ian's rich experience with large scale production, balanced with innovation at the alloy scale, informs the product mix. With a background in Materials Science & Engineering and a Master of Engineering Management from Northwestern, Ian's technical drive and business savvy round out the NUMiX team.

Olivia Lugar

Co-Founder & Advisor

Olivia Lugar holds a JD from Northwestern. She has a background working in energy and finance both inhouse and at an AmLaw 100 law firm, and her research has included hazardous waste transportation planning and waste project financing. With waste management running in the family, she is passionate about reducing society’s environmental impact in this ever more tech driven world.