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Leadership Team

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Dave Kimball – President / CEO, Mahoney Environmental

Dave joined Mahoney Environmental® as the President and CEO in 2022. He has over 30 years in the real estate and facility management profession at several companies including Verizon, Johnson Controls, Aramark, and Sodexo. Prior to Mahoney Environmental, Dave was the Sr. Vice President FM Healthcare and Chief Operating Officer of the corporate services IFM business at Sodexo. His professional experience includes facilities management, design construction, energy management, real estate transactions, and lease administration. He has been responsible for portfolios more than 50 M Sq. ft. while leading teams of over 1000 people. Dave has a B.S. in Civil Engineering from Michigan Technological University.

Ken Fritz – Vice President, Finance

Ken joined Mahoney Environmental® in 2014 as Vice President of Finance. Prior to coming to Mahoney Ken began his career at a Certified Public Accounting firm in 1985. He received his CPA in 1987. Ken has served in finance roles to include senior management positions with firms in a variety of related environmental and recycling industries including Earth Tech, Compass Environmental and Greenstar Recycling. He is a graduate of Illinois State University with a B.S. in Accounting.

Tim Zak – Senior Vice President of Sales & Marketing

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.

Salvatore (Sonny) Nuccio III – Vice President of National Sales & Marketing

Sonny joined Mahoney Environmental® in 1998 in a sales role. He has served over 23 years in various sales, marketing and leadership roles and was named as VP for Preferred Oil in 2017. Sonny added management responsibility for Mahoney Equipment Solutions in 2018. In 2021 he now leads the National Accounts and Marketing Teams as VP of National Sales and Marketing.  He served on the Education Committee and the Resources Committee for the Restaurant Facilities Managers Association (RFMA) in recent years. Prior to coming to Mahoney Sonny worked in various restaurant businesses, learning about our services from the customer view. He is a creative thinker, a motivated go-getter with a distinguished background of identifying opportunities, providing value-based solutions, while building exceptional customer relationships through customer service. Sonny studied Advertising and Design at the American Academy of Art in Chicago.

Vito DiPietra – Vice President of M&A and Managed Service

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 acquisition on Mahoney 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 developed and grown a network of trustworthy subcontractors of nearly 200 partners to help support the growth initiative outside of our direct service area and expand in additional markets, while building profitability.

Brian Conrad – Senior Director of Information Technology

Brian joined Mahoney Environmental® in 2011 as Director, Information Technology. Brian was named CIO & Vice President of Business Development from 2014 through 2017 managing IT, Central Logistics, Customer Solutions, and Mahoney Equipment Solutions. In 2015, Brian was promoted to Vice President, UCO Operations and then Vice President, Operations at the time of the transaction in 2020 to Neste. In 2022, Brian was named Senior Director of Information Technology. Prior to coming to Mahoney, Brian has held technology and operations positions with firms in a variety of industries including Veolia Transportation and MV Transportation.  He is a graduate of Indiana University with a B.A. in Criminal Justice.

Valerie Marshall – VP of Human Resources

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.

Tania Bertram – Director of Health, Environmental, Safety, Security, and Quality

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.

Beau Mega – Vice President of Commercial Sales & Preferred Oil

Beau joined Mahoney Environmental in 2005 as an outside sales account manager. Beau developed within the organization over the past 16 years learning every position within the sales division including regional, national and sales management. He has worked with many regional and national brands across the country focused on organic growth volume and profitability to Mahoney Environmental. In 2008, Beau was selected to spearhead the introduction of the Preferred Oil division to current premier customers and identify new large volume cooking oil users for growth opportunities. Beau added management responsibilities as Director of Business Development in 2016. January 2021, Beau was named Vice President of Commercial Sales and Preferred Oil. Throughout his career, Beau has utilized an “Achievement-Oriented” approach to deliver positive results and to win!  His professional experiences include customer service, team management, sales business development, operations execution and P&L management. Beau leads with a strong work ethic, leading by example, performance, knowledge, extensive customer service and teamwork. Beau has represented Mahoney Environmental working with the Illinois Restaurant Association. Beau is a graduate of Lewis University with a B.A. degree in Business Management and a minor in Marketing.

Melissa Moran – Legal Counsel & Corporate Secretary

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.

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