Leadership Team

Valerie joined Mahoney Environmental® as the VP of Human Resources in 2022. She has over 25 years in various human resources roles within several companies like Aramark, ITW and Quaker Oats. Prior to Mahoney Environmental, Valerie was a Senior Director of Human Resources at Sodexo for 13 years, leading a dynamic team that was responsible for food and facilities management services throughout the United States, Canada, and Puerto Rico. Valerie has a B.A. degree in Psychology from Mundelein College of Loyola University – Chicago and an M.B.A. in Strategic Management from the University of Chicago.

Tim joined Mahoney Environmental® as the VP of Sales and Marketing in 2014. He has served over 25 years in various leadership roles in the product distribution and service provider industries with several Fortune 500 companies. Prior to Mahoney Environmental, Tim was a Regional Vice President at W.W. Grainger for 12 years, and prior to that held Vice President of Sales roles at both US Foodservice and Martin Brower and the Market President role at International Multifoods. With a track record of producing organic sales growth in his former positions, Tim continues to grow top line sales, gross profit, and net income with Mahoney Environmental. With the transaction to Neste in 2020, Tim is now Senior VP of Sales & Marketing and has responsibility for Mahoney Equipment Solutions. Tim is a graduate of the University of Wisconsin with a B.A. degree in Finance/Accounting.

Tyson joined Mahoney Environmental® in 2023 as the Chief Operating Officer through a merger with SeQuential. With about 20 years of experience in used cooking oil collection and recycling, Tyson served as the Chief Operating Officer for Crimson Renewable Energy Holdings and CEO of SeQuential. Tyson is a graduate of the University of Oregon with a B.S. in Public Planning, Policy, and Management.

Vito joined Mahoney Environmental® in 2011 as Director of Managed Services to build our network of sub-contractors for a national footprint of multiple services. In 2013, he joined the Senior Leadership team and was named the VP of Trap Operations and Managed Services. He helped to grow and expand trap service Nationwide before being named the VP of West Operations in 2017. After the Mahoney acquisition by Neste in 2020, Vito was named the VP of M&A and Managed Service. Vito came to Mahoney with over 25 years of experience in the restaurant industry managing various aspects of the business, including procurement, construction, development. Vito was a customer of the company while at the Portillo’s Restaurant Group. During his various roles at Mahoney, he has been involved with all aspects of our business to include Joliet, our largest UCO and trap service operation, building the Mahoney Managed network, identifying acquisition opportunities, market analyst, and contract negotiations. He has grown trusting relationships and delivered exceptional customer service to stabilize and create profitability in trap services and has grown a network of nearly 200 partners to help support growth initiatives outside of our direct service area and expand in additional markets.

Melissa joined Mahoney Environmental in 2022 as Legal Counsel & Corporate Secretary. She is responsible for all legal matters particularly in regard to contracts, mergers & acquisitions and other general corporate matters. Prior to joining Mahoney, Melissa joined Fox Rothschild LLP as a Corporate Associate. Melissa then joined Major, Lindsey & Africa and continued to work for them until she joined Mahoney. Throughout her career with Major, Lindsey & Africa, she worked as a Corporate Associate and Corporate Counsel responsible for a number of assignments with prestigious clients from diverse business sectors. Her last assignment was with Neste where she supported Mahoney with strategic growth, specifically in M&A activity. She also helped Neste US and Neste Oyj with general corporate matters for its subsidiaries. Throughout her career, her responsibilities have included representing start-up and technology entities as well as general corporate, contractual, privacy and employment matters.

Melissa earned her Bachelor of Arts from Rutgers University, where she double majored in English Literature and Psychology. She went on to earn her Juris Doctor from Rutgers University School of Law – Newark. She is licensed to practice law in California.

Tania joined Mahoney Environmental® in 2022 as Director of HESS&Q with 20 years of experience in Occupational Health and Safety. Prior to Mahoney, Tania managed Environmental, Health, and Safety in vehicle production, chemical manufacturing, and chemical reclamation with a record of helping decrease workplace incidents, injuries, and developing a proactive safety culture. In 2020, one of her facilities received the Governor’s Safety award from the State of Indiana for safety performance. She has a B.S. in Occupational Health and Safety, holds Associate Safety Professional and Certified Safety Professional certifications, and is an active member of the American Society of Safety Professionals and previously held the President position of the Audubon Chapter.