Dr. Stan Heisel
Executive Director of Technology
972-563-1102 ext. 13351 
stan.heisel@terrellisd.org

Gregory Garrow
Director of Technology
972-563-1102 ext. 13353
gregory.garrow@terrellisd.org

Matthew Nielsen
Network Administrator
972-563-1102 ext. 13358
matthew.nielsen@terrellisd.org

Vernon Ellis
Secretary to Technology Services
972-563-1102 ext. 13354
vernon.ellis@terrellisd.org

Colin Welch
Campus Support Tech
972-563-1102 ext. 13356
colin.welch@terrellisd.org

Andrew Mashburn
Campus Support Tech
972-563-1102 ext. 13699
andrew.mashburn@terrellisd.org

Jeremy Bahr
Campus Support Tech
972-563-1102 ext. 13355
jeremy.bahr@terrellisd.org

Nicholas McDonald
Campus Support Tech
972-563-1102 ext. 13698
nicholas.mcdonald@terrellisd.org

Itamar Umana
Campus Support Tech
972-563-1102 ext. 13357
itamar.umana@terrellisd.org