"Bio Joe" Renwick
Chief Executive Officer
Company founder and C.E.O, Bio Joe has dedicated the past 10 years to researching and perfecting biofuel production.

Dr. Beth Renwick
Co-owner
Company majority owner and medical doctor, Beth splits her time between working in the E.R and on strategic planning for GEB.
Matt Osteen
Chief Operating Officer
Matt, oversees the entire company’s day to day operations! From managing logistics, to ensuring quality production, Matt does it all!

Abby Morales
Executive Administrator
Abby, the central hub of the office, ensures that Green Energy stays running like a well oiled machine.
Matt Byler
Sales & Customer Service Manager
Delivering the best customer service and sales experience the industry has to offer, Matt is always going out of his way to assist his clients!
Matt Rosen
Production Manager
A Biosystems Engineering Grad from Clemson, Matt keeps the plant at maximum efficiency while managing the plant staff.
Jack Sidlo
Plant Manager (Winnsboro)
Jack oversees operations at our Winnsboro plant! From quick problem solving to managing plant staff, Jack is an integral part of our team!

Jason Terry
Plant Operator (Knoxville)
Jason is in charge of all things at our Tennessee location. He handles production, routing, sales and customer service.

David Thompson
Plant Manager (Aiken)
Former maintenance supervisor at our Winnsboro location and a Navy veteran, David oversees all aspects of the day to day operations at our newest plant in Aiken.

Penny Renwick
Business Administrator
Penny, a member of the Renwick clan, is a one stop shop at our HQ. From customer service, to event planning, to office administration, Penny uses her wealth of skills to get the job done!
Erika Coman
Executive Assistant
With her background in business administration and passion for sustainability, Erika helps Bio Joe with his day to day tasks, while also managing marketing activities for the company.
Zack Johnson
Public Relations Coordinator
Zack is responsible for coordinating Green Energy promotions as well as for managing our social media and online presence!

Kaleb Cauthen
Process Engineer (Winnsboro)

Kyle Nelson
Operations Technician (Aiken)

Richard Fulmer
Collections Driver

John Wilkins
Collections Driver

Taylor Baxter
Oil Collection Specialist

Justin Harris
Oil Collection Specialist

Will Campbell
Collections Driver

Joe Belk
Plant Assistant

Megan Russell
Welder & Maintenance

Glen Evans
Maintenance Technician

Erwin Renwick
Maintenance Technician

Matthew Fonseca
Production Assistant

Cody Wineland
Maintenance Technician

DeMarcus Nelson
Fabricator

Evan New
Production Assistant

Gage Moyer
Maintenance Technician

Richard Gray
Maintenance Technician