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Otis Henry
Sales Manager
Otis Henry - Sales Manager and Commercial Sales for Knight’s Ready Mix.

Otis is a graduate of both Holly Hill High School & Trident Technical College with a degree in Civil Engineering. His 40 years in the cement and concrete industry started as a lab technician and Assistant Chemist with Giant Cement Co. Otis began his 25 year career in sales with Gifford Hill Chemical division in Charlotte, NC and continued in sales & sales management with Concrete Supply, Metromont Materials, & Cabarrus Concrete companies in the Charlotte area. Otis moved back to his native South Carolina, joining Knight’s Redi-Mix in 2003.

Otis has served as president & board member of the Carolinas Chapter of the A.C.I. (American Concrete Institute), served on the AGC Supplier/Service Advisory Board, Technical Committee member and 20 year member with the CRMCA (Carolinas Ready Mix Concrete Association), & former member of ASTM and PCEA (Professional Construction Estimators Association) organizations.

Otis spends his free time with hobbies that include the company of family and friends, a love of college sports, and the challenge of another hole in one on the golf course.


Gregg Oltmann
Market Manager
Gregg Oltmann - Market Manager

A Charleston native and James Island High School graduate, Gregg Oltmann brings 10 years construction sales experience to the Knight’s Companies sales team. A certified pervious concrete installer, ACI certified, and an NRMCA certified concrete sales professional, Gregg was also the 2004 CRMCA chapter coordinator of the year.

While not at work, Gregg volunteers for the city recreation department, coaching basketball, baseball, & football. Gregg, Susan, and their children Shelby & Hunter enjoy fishing, hunting, boating, and college football.


Gary Brewer
Market Manager
Gary Brewer - Market Manager

A Summerville native who attended Fort Dorchester High School (’98) and The Citadel (’02) with over 12 years experience in Sales and Management. Growing up in the area has allowed for long relationships inside and outside our industry. Gary focuses on Commercial, SCDOT and Utility work within our market. Gary is also very involved in the community as Founder of the Putting for Parkinson’s golf tournaments, Courting Kids for Inner City Youth, past member of Charleston Young Professionals, and active in the Summerville Chamber Of Commerce.

When not working you’ll find Gary on a golf course, hunting/fishing, or watching South Carolina Gamecocks Football.


James C Gowan Jr.
Precast Sales Manager
James C. Gowan Jr. - Precast Sales Manager

A native of Spartanburg, SC, James joined Knight’s Precast in 2001 bringing 40 years of Precast sales experience to the team. James is a member of the Cattle Creek UMC, Mason’s, and the NPCA. In his spare time James enjoys working on his small farm in Orangeburg County and hunting.