About Our Employees

    Our Employees Help You Pick and Put the Puzzle Pieces Together


Denise Brewer – Owner of PrepSCO

Denise Brewer is married to David. She is the mother of three daughters. She is originally from Michigan and now resides in Gainesville, Texas. She received her Bachelor of Science Degree in Dental Hygiene and her Master of Science Degree in Health Science Education from Texas Woman’s University.


Zoe Reed – PrepSCO’s Administrative Assistant

Zoe Reed graduated from Denison High School in 2014.  She is attending Southeastern Oklahoma State University. She is currently living in the dorms at SE. She will be majoring in Psychology and minoring in Sociology.  She has a thirteen year old sister named Mercedes and a dog named Ranger.

Dana Tennyson

Dana Tennyson – PrepSCO’s Online Marketing Consultant

Dana, owner of Billow Marketing, graduated with a BBA in Marketing from University of North Texas.  She lives in Pottsboro with her husband James,  3 children Robby, Samantha and Lane and her dog Goldie.


Katelyn McGuire -PrepSCO, Inc. Vice President

Katelyn is married to Brandon McGuire.  She and her husband live in Gainesville, Texas.  Katelyn graduated with her Bachelor’s degree in Animal Science at West Texas A&M in hopes of going on to Veterinarian School.  She is a former PrepSCO graduate.  She and her husband love dogs and horses!


Rachel Brewer – Secretary

Rachel, her very “needy” dog (Shiner), and her puppy named Gunner live in Canyon, Texas.  Rachel is working on an Elementary Education major at West Texas A&M.  She is a former PrepSCO graduate also.  Rachel loves her fiance-Kyle Hellinger, looking at new cars for herself, hanging out with friends, and staying fit!

Chelsea Denney- Website

Chelsea Denney – Treasurer

Chelsea and her three beautiful children live in Gainesville, Texas.  Chelsea works as a pharmacist in Gainesville, TX.  Chelsea graduated from Texas A&M, Kingsville.  She is also a former PrepSCO graduate.  Chelsea enjoys her children- Hannah, Levi, and Claira.   She also enjoys traveling, any new endeavor, and great food.

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