Leadership Team



Leadership Team

John Mahoney, CEO

John has spent his entire professional career working in his family’s firm. After graduating college in 1972, he began as a route driver. Over the next several years he served in a variety of capacities as he learned every part of the business. He became the company’s president in 1995, but found time to earn a Master’s Degree from Pacifica University in 2005. John is an active member and has served as both officer and director of the National Renderers Association.

Rick Sabol, President

Rick joined Mahoney Environmental® in 2009 as Vice President of Preferred Oil, LLC.® He added responsibility for our equipment company, company wide sales and Mahoney Managed, the delivery of services through sub-contractors outside our direct service area. As President, Rick will be responsible for Mahoney Environmental operations, sales and administrative management of the business. A graduate of Ohio University, with a B.S. in Industrial Technology, Rick has held senior management positions with firms in a variety of industries including TectaAmerica, Shell Lubricants, Ararmark and The ServiceMaster Company.

Vito DiPietra, VP of Trap & Mahoney Managed 

Vito came to Mahoney Environmental with 25 + years of management experience in the restaurant industry. His areas of focus have been in strategic business planning, fiscal management risk/compliance, contract negotiations, and construction project management from due diligence and site selection through day one opening. Vito has published articles on optimal grease trap functioning in multiple media spaces for Mahoney Environmental, including the Best Practices issue for the Restaurant Facility Management Association.

Brian Conrad, VP of UCO Operations & CIO

Brian came to Mahoney Environmental after 15 years working in the transportation, logistics, aerospace and manufacturing industries. His career has included strategic planning, development of data centers and networks, and building technology teams that are focused on supporting a company’s business objectives. Among other positions, he was Vice President of Business Development and Administration for Challenger Transportation, IT Director for MV Transportation, and Director of IT for Veolia Transportation.

John Setchell, President – Mendota Agri-Products

Starting as part-time field maintenance hand for Mendota Agri-Products in 1989, John has overseen the construction and operations of all of the company’s processing facilities. Long at the forefront of the recycling process, John has developed some of the industry’s most widespread techniques for extracting the full value of raw materials and turning them into marketable products.

Tim Zak, Vice President – Sales and Marketing

Tim joined Mahoney Environmental as the VP of Sales and Marketing in early 2014. He has served over 20 years in various leadership roles in the product distribution and service provider industries with several Fortune 500 companies, including Grainger. Tim also carries with him a solid background in operations with P&L responsibility across multiple functions spanning product management, logistics, inventory control, and customer service. With a track record of 10% sales growth in his former positions, Tim’s focus is on continuin to grow top line sales, gross profit, and net income with Mahoney Environmental.