Fall Protection, Rescue & Access - Equipment, Training & Consulting. Tennessee Equipment Supply – TES Inc. supplies tower climbing gear including full body harnesses capstan winches cable grabs work at heights tools and twin leg lanyards for every job. TES,Inc. was founded in January,2003 by Cliff Kirk,President. Our customers include tower,wind energy,rope access,military,rescue professionals,entertainment rigging and adventure parks. We have developed our product lines to meet the specific needs of our clients.