Robb Schreck leads the company operations and strategy working the management team to deliver consistent growth, profitability, and high performance. He has served as a finance executive with complementary leadership experiences in general management, sales, supply chain, and service. He has a proven track record of delivering results through team-oriented leadership, operational excellence, and environmental health and safety. Robb believes that integrity is a foundational element of success in any business, and he puts a strong focus on customer experience and employee engagement. With a deliberate growth strategy, Robb seeks to create value for clients while also making an impact in the communities HEPACO serves.

Ken Knibbs has demonstrated experience in the environmental, hazardous waste management, and emergency response services industry that he brings to his role as Chief Commercial Officer. He has 35 years of experience, including 5+ years of military experience as a U.S. Navy Avionics Technician. Ken partners with the COO, CHRO, CFO, CEO, and others to drive the overall company strategy. He works with the team to provide project and program management, account management, and companywide pricing and marketing strategy, including determining, communicating, and managing applicable KPIs. Ken supports the team in deploying external communications and branding.

Shayne is a results-driven human resources leader with global experience across multiple industries. With over 30 years of experience, she is a trusted strategic partner. Shayne is passionate about challenging the status quo and helping people and businesses realize their full potential.

Chris Duffell, CPA has 25 years of experience driving profit and growth while maintaining financial stability. As CFO Chris is responsible for all finance functions including accounting, financial reporting, planning and forecasting, audit, treasury, tax, in addition to ROIC Optimization. He is proud to lead an honest, hard-working team that uses financial data to inform sales and operations procedures. In his role, Chris aims to use data and relevant information to inform process, synthesize work products, and find levers that will drive business growth. He leverages connections across functional groups within HEPACO to identify the best way to solve problems and capitalize on opportunities while embracing a results-oriented culture based on honesty, trust, effort, business partnership, and a willingness to do what is right.

Michael Messinger is a highly experienced technology executive with a drive to innovate the key services areas: engineering, development, security, and end user experience. His focus is elevating TechOps culture to be business partners to the company. Michael and his team find unique solutions to solve for system inefficiencies and drive innovation through business analytics. Above all, he aims to support HEPACO staff with proactive approaches to operations and business solutions.