Operations

Our Operations Team

In order for HES to properly function and carry out its mission of delivering unmatched custodial and facilities management services, our operations staff is filled with the most qualified, knowledgeable business professionals. Find out more about our operations team below.

Josh Helton

Senior Vice President, South Central Region

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Scott Zimmerman

Senior Vice President, Southeast Region

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Dean Helton

Senior Regional Manager

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Mark Ryerson

Senior Regional Manager

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Don Clark

Regional Manager, Training and Development

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Russ G. Leboff

Senior Regional Manager

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Collins Onyando

Regional Manager

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COVID-19: Our Response and Resources

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Josh Helton

Senior Vice President, South Central Region

Mr. Helton brings years of leadership and experience to our clients, as a second-generation facility management service provider. The Helton family's facilities management company, SBS, was established in 1990 and gained a strong reputation for K-12 facility services in the Southeast. In 2003, SBS was acquired by a large national provider to form a newly established education division. Josh attended Trevecca Nazarene University where he earned a B.S. and was a standout student athlete on the basketball team. During his time at TNU he was a two-time NAIA All-American and still holds numerous NAIA and TNU scoring and assists records.

Scott Zimmerman

Senior Vice President, Southeast Region

Mr. Zimmerman brings over 25 years in the facility management industry primarily in the K-12 education market. His responsibilities include team building, recruiting, hiring, training, and overall management of support personnel for school systems throughout the Southeast and Mid-Atlantic areas. Scott brings extensive customer care and high-level relationship management experience to SMS. He leads a team of exceptional recruiters and managers who provide excellent customer service every day. Scott attended East Tennessee State University, where he gained a B.S. in Psychology with a Minor in Business Management.

Dean Helton

Senior Regional Manager

Mr. Helton brings over twelve years of leadership and experience to our clients, as a second-generation facility management service provider. Dean was a former partner at SMS before being acquired by HES. Dean is experienced with transitioning in-house facility services in K-12 school districts and higher education institutions. Dean attended Middle Tennessee State University where he earned a B.A.

Mark Ryerson

Senior Regional Manager

Mr. Ryerson brings over 15 years of facility management experience to our clients. Starting his career as an hourly shift supervisor, Mark quickly worked his way into numerous elevated operations roles in projects across the Southeast, ranging from Higher Education to K-12 School Districts. He is skilled in new business startups and account management and has successfully managed clients in rural, suburban and urban areas. His industry knowledge, hands-on approach, and commitment to upholding cleaning industry key performance indicators helps set SMS apart from any other competitor in the industry.

Don Clark

Regional Manager, Training and Development

Mr. Clark brings over 20 years of management, leadership and industry experience to SMS and its clients. Don proudly served in the U.S. Navy and retired after 21 years of honorable service. Due to his exemplary career in the armed forces, where he developed his management, hands on training approach, and leadership abilities, he was quickly able to build the resume ideal for corporate business operations. Mr. Clark has held senior management and c-suite roles both in the facility services industry as well as other multi-business organizations. He has a degree in Aerospace Safety and Professional Aeronautics from Embry-Riddle Aeronautical University in Daytona Beach Florida and continues to further his senior business management degrees at the W.P. Carey School of Business.

Russ G. Leboff

Senior Regional Manager

Mr. Leboff has over 8 years of facilities management experience and has served both the higher education and k-12 markets. Russ began his facilities career as a manager-in-training in Isle of Wight County Public Schools (VA) and managed his first k-12 district in Roanoke County, Virginia. His customer-first attitude, proactive communication, and hands-on approach to management allowed him to quickly gain opportunities to expand his role and serve numerous clients throughout the Mid-Atlantic. Russ holds a Bachelor of Science degree in Mathematical Economics and Spanish from Hampden-Sydney College, and he is currently pursuing his APPA certification.

Collins Onyando

Regional Manager

Mr. Onyando brings years of facility management, logistics coordination, and leadership experience to our clients. He has a well-established career in managing numerous school systems, including large urban systems as well as rural outlying systems. Mr. Onyando has also been involved in multiple large-scale startups, as well as daily operational management and quality control. Mr. Onyando attended Trevecca Nazarene University as a student athlete in Basketball, where he graduated with honors. During his time at TNU he was a NAIA All-American and holds numerous TNU records.