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Our Team

With almost 200 plus combined years in the mobile conveying industry.  We are passionate about this business and your satisfaction is our #1 priority. 

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TRAVIS PETTIJOHN

CEO

Travis Pettijohn formed GCI Slingers LLC in March 2013, however, Travis was no rookie in the material placement business.   Travis's grandfather Joe Pettijohn formed Pettijohn & Sons in 1958.  Travis's father Mike Pettijohn began using conveyors to assist the grueling task of placing gravel and stone into foundations in the late '70s and by the mid 80's Mike, Travis's father was running fleets of dump trucks with conveyors attached to them.  By the late '80s, Mike Pettijohn patented the first  “Gravel Shooter” mobile aggregate conveyor system in the US and founded Gravel Conveyors Incorporated in 1989. This makes Travis the 3rd generation of Pettijohn’s who have innovated the foundation business.  Growing up Travis worked at Gravel Conveyors and Pettijohn & Sons during the summers and on break from school.  Travis immediately grew a passion for and loved the challenge of building these big trucks and hydraulic systems that powered these machines. Welding, building and assembling conveyors and hydraulic systems always kept Travis on his toes. The biggest challenge back then was how to throw rock "just 20 more feet"!  

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AARON WITMER

Chief Operating Officer

Aaron is the newest member of the GCI management team, his addition brings in a customers perspective to the office.  With nearly a decade of Construction site and crew management experience, Aaron has worked on the other side of the fence.  After attending Cornerstone University, he has worked in Indiana and California in the construction and foundations industry.  His many years of foundation experience, both commercial and residential has given him insight into not only how Stone Slingers are used, but also how important they will be in the future of the construction industry.  Along with his schooling, management, and work experience, Aaron holds a Class A CDL and is even an experienced Stone Slinger Operator, giving him working knowledge of both the Stone Slinger Industry and the Machines and Parts themselves.  Among his many duties, he heads up our parts department, and along with the rest of the team brings first-hand knowledge to troubleshooting equipment problems, planning logistics, and helping our customers from start to finish on projects and problems both big and small.   He is passionate about this industry, these machines, and looks forward to a future with more mobile conveying systems, with Stone Slinger leading the way.

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BILL BLAKE
DIRECTOR OF SAFETY, COMPLIANCE AND QC

After 10 years of managerial experience in the building services field and 5
years of owning his own company, Bill changed career paths and started
working for his father-in-law in 2003. He worked in the excavating business
where he attained a class A CDL to drive, pull and operate heavy equipment.
In 2006 he started working in the trucking/stone slinging industry where he
also operated, diagnosed, and repaired trucks for the business he worked for.
In February of 2017 Bill came to work for GCI Slingers LLC where after being
a Stone Slinger operator for a few months, was moved into the shop area to
utilize his knowledge of stone slingers and fleet maintenance. Bill became the
Shop Manager for GCI where he implemented customer builds and fleet
maintenance programs for the company. In March 2020, Bill was moved into
the Dispatch Manager position where he ran the company fleet for 3.5 years.
Bill is now our director of safety, company compliance and quality control.

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JEFF MOSBAUGH

SALES MANAGER

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JOE McGUIRE

PARTS MANAGER

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Aaron Cain

LOCATION MANAGER

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MATT BIDDLE

SHOP MANAGER