Management Profile

Ross Environmental Services, Inc. has been a pioneer in hazardous and industrial waste management since 1949. The company is led by an experienced and highly qualified leadership team.

Bill Cromling III

William E. Cromling III, President, RTS (Ownership)

Bill Cromling III has spent more than 20 years with Ross Transportation Services, Inc. A local graduate, he served several years in the United States Army, serving in Germany, prior to joining Ross Transportation in 1992. He joined the company as a mechanic and later held positions in maintenance and operations. After several years of experience with increasing responsibilities, Bill became President of Ross Transportation Services, Inc. in March, 2007. Bill is a member of the National Private Truck Council. He is certified under the Certified Transportation Professional program. He is also a graduate of Leadership Lorain County and is active in local community organizations.

Jon Cromling

Jon Cromling, Vice President of Strategic Land & Business Development, RES (Ownership)

Jon Cromling is Vice President of Strategic Land & Business Development for Ross Environmental Services, Inc. A local graduate, Jon spent several years in the U.S. Army prior to joining the Ross companies. He joined Ross Transportation Services, Inc. in 1977 where he held positions in maintenance and operations. Jon was previously the Director of Strategic Land & Business Development for RES. He is active in the Eaton Township Comprehensive Land Use Plan Committee.

Jim Larson

James Larson, President and CEO of RES and President, RIS

Jim started with Ross Incineration in 1998. Prior to his current position, Jim served as Research & Development Manager, Incineration Manager, Vice President of Operations for RIS and Chief Operating Officer of RES.  As President and CEO, he is responsible for the strategic, operational and financial performance of Ross Environmental Services, Inc. and its affiliated companies (Ross Incineration Services, Inc. and Ross Transportation Services, Inc.). Jim is a graduate of Leadership Lorain County, a member of the American Institute of Chemical Engineers and a former member of the Environmental Council sponsored by the Lorain County Chamber of Commerce. He holds a Bachelor of Science degree in Chemical Engineering from Michigan Technological University. Prior to joining Ross, Jim worked in the areas of chemical engineering, water and wastewater treatment, air pollution control, electrochemical engineering, sales and process engineering.

Stefanie Clemens

Stefanie Clemens, Chief Financial Officer, RES

Stefanie Clemens joined Ross Environmental Services, Inc. (RES) as Chief Financial Officer in January, 2015. In her role, Clemens oversees the Accounting, Purchasing and Human Resources groups which provide essential services to both the Ross Group of companies (Ross Environmental, Ross Incineration Services, Inc. and Ross Transportation Services, Inc.) and affiliated companies, including ReTech, LLC and ManagTech, Inc. Clemens is a Certified Public Accountant with a BBA in Accounting from Cleveland State University and has more than 25 years of experience. Prior to joining RES, Clemens held executive level positions with responsibility in the areas of accounting, financial management, strategic planning, and information technology and business process improvement for several companies in Northeastern Ohio. Clemens is a member of the Ohio Society of CPA’s. Clemens resides in Avon with her daughter and enjoys being involved in her daughter’s school and tennis activities and has a passion for strength training and spinning.

Gary Vidmer

Gary Vidmer, Executive Vice President of Sales & Marketing, RES

Gary Vidmer is Executive Vice President of Sales & Marketing for Ross Environmental Services, Inc. and has been with Ross Environmental since June of 2006. As Executive Vice President of Sales & Marketing, Gary is responsible for the overall direction and management of the Ross companies’ sales and marketing functions. He oversees sales and marketing efforts in six territories in the Central and Eastern United States, as well as, the National Account Program. Originally from Greensburg, Pennsylvania, Gary received his bachelor’s degree in Economics from Bucknell University and studied financial analysis and marketing at the University of Michigan. He has over 25 years of sales, management, and marketing experience within the chemical manufacturing and hazardous waste management industries.

Pat Lawson

Patricia Lawson, Vice President, Corporate Compliance and Risk Management, RES

Pat Lawson is Vice President of Corporate Compliance and Risk Management for Ross Environmental Services, Inc. and has been with the company since 1992. In her position, Pat is responsible for the overall direction and management of the Ross companies’ Corporate Environmental, Health and Safety, Security, Risk/Contract Management, Corporate Legal Affairs and Corporate Communications groups. Pat received her bachelor’s degree in Public Relations from The Ohio State University. She has more than 20 years of experience in the hazardous waste management industry. She is a graduate of Leadership Lorain County and is active with her daughter’s equestrian activities.

Steve Goldman

Steve Goldman, Vice President of Technology, RES

Steve Goldman is Vice President of Technology for Ross Environmental Services, Inc. and has been with the Ross companies since 1997. As V.P. of Technology, Steve is responsible for all aspects of information technology and engineering at the companies. Steve received his bachelor’s degree in chemical engineering from Rensselaer Polytechnic Institute in 1985. He has been working in the hazardous waste management and air pollution control industry for his entire career. Steve was formerly a Registered Professional Engineer in Georgia and Utah. He is devoted to his family and is active in his local church.

Darrell Zielinski

Darrell Zielinski, Vice President of Business Development, RES

Darrell Zielinski is the Vice President of Business Development at Ross Environmental Services, Inc. Darrell has a Bachelor of Science degree in Chemical Engineering from the University of Dayton. He held various positions involving engineering, operations, business development and general management before coming to RES in 2013.