Hours of Operation: Monday - Friday: 8:00 a.m. - 5:00 p.m.

AABEX Animal Health

Our Team


Mark Hill

Meet Our Founder

Mark Hill founded the company in 2018 after a successful career in the animal health industry. Mark was born and raised on a dairy farm in Maryland and graduated with a B.S. in Agricultural Economics and a M.B.A. from the University of Maryland. Mark started in field sales in a territory in Virginia and progressed through his career in a variety of sales management and marketing positions. Mark’s last position was as Senior Sales Director for the U.S. Large Animal Division of Merial Ltd. At Merial, Mark established a great track record of hiring and developing high performing teams which consistently exceeded goals. Under Mark’s leadership as the U.S. Senior Sales Director, the U.S. equine and the U.S. cattle business each achieved industry leading growth. In addition to his sales experience, Mark also held several marketing management roles during his career where he managed and launched some of the leading brands in the industry. 


Michael Lindsey

Michael Lindsey

Michael Lindsey is equine enthusiast who resides in the Dallas/Fort Worth area. Michael joins AABEX Animal Health as an Equine Sales Consultant covering Texas, Oklahoma, Arkansas and Louisiana. Michael started in the Animal Health Industry as a Territory Manager in 1998 for Manna Pro Products in Colorado and New Mexico. Michael’s interests and passion for equine health has guided his career since then to achieve many successes in feed formulation, veterinary sales and retail sales of equine health products. Michael’s career has included serving as Director of Animal Nutrition Western US & Canada and National Sales Manager-Branded Products Division for RiceBran Technologies, National Sales Manager for Biovance Life Sciences and Veterinary Distribution Director for Freedom Animal Health.

Michael participated in the PRCA as a saddle bronc competitor (retired) and currently is a competitor with the NCHA and is actively showing cutting horses. Michael believes “Education along with service, create sales” and embraces providing that support to the industry.


Greg Haslouer

Greg Haslouer

Growing up on a family farm in Central Kansas, Greg has always been passionate about the cattle industry and especially the feedlot and backgrounding segments. Since graduating from the highly-rated Kansas State University’s School of Business, Greg quickly established himself as a proven leader in a variety of sales, management, and marketing roles for multiple businesses and start-up companies.Most recently, Greg worked for Merial Limited (who was acquired by Boehringer-Ingelheim), where he played a key role in the successful relaunch of the cattle antibiotic ZACTRAN and the launch of the injectable cattle dewormer LONGRANGE. He prides himself on his personal relationships with his customers that encompasses both their family and their business operation. When not working, Greg is busy in partnering with his wife, Tara, to raise their three daughters who are active in multiple activities. Greg also continues to help his folks background cattle and grow crops on the original family farm, along with cheering on the KSU Wildcats!


W. Thomas Borders

W. Thomas Borders

Tom Borders is a graduate of Clemson University with a BS in Animal Science and MS in Agricultural Economics. Tom has an extensive background in livestock animal health, beginning his career in animal health as a sales representative for SmithKline Animal Health. He has served as General Manager Canada and Director of Livestock Sales U.S. for SmithKline Beecham Animal Health and Pfizer Animal Health respectively. Tom served as Director of the Cattle Business Unit for Pfizer Animal Health before moving to private industry where he became a partner in Animal Medic Inc. Animal Medic Inc was a regional dairy animal health distributor serving farms and dealers in the northeastern United States. Tom and his partner sold Animal Medic Inc to Wisconsin based Animart in 2015.


Omni Animal Health

OMNI Animal Health

AABEX is proud to have OMNI Animal Health as a partner to represent AMPLIMUNE to the US cattle industry. OMNI Animal Health was formed by a group of cattlemen investors in 2016 to develop and market innovative products designed to reduce the use of antibiotics in animal production. The staff of Omni Animal Health has decades of successful experience in the animal health industry and a keen vision for the future needs of the cattle industry.


Jack Chellew

Jack Chellew

Jack recently completed a very successful career in sales and training in both the human and veterinary pharmaceutical industries. Jack graduated from St. Edward’s University, Austin, Texas, with a degree in Biology, followed by graduate work in Biology at Texas State University. Additionally, he attended studies at the Menninger Institute and D. D. I. Leadership Training and holds Master Certifications in Training from Forum International, Wilson Learning and Pritchett.

While with Merck AgVet and Merial Ltd., Jack presented customized training programs in the Pacific Rim Countries, Europe, Central and South America, Australia and North and South America. Organizations including the American Quarterhorse Association and the American Reining Horse Association have also benefited from his services.

In addition to his training expertise, Jack was a highly accomplished Equine Sales Specialist. He received numerous sales and team awards during his career for top sales achievement with the Merck AgVet and Merial Ltd. corporations. He also stood out as a team leader and was recognized by his peers with awards for his outstanding team work effort.

Jack lives in New Jersey with his wife Linda and Jack Russell Terrier, Dickens. He is an avid hunter, fisherman and outdoorsman, and enjoys volunteering his time with the New Jersey Department of Fish and Wildlife teaching Hunter Safety classes and forestry services. In his free time, he and his wife enjoy travel and spending time with their children and grandchildren.


Meg Green

Meg Green

Dr. Meg Green is an award-winning veterinarian and business strategist. She has a diverse background and consistent record of accomplishments in both clinical practice, as well as, in the Animal Health Industry.  She has expertise working with Bovine, Equine and Small Animals focusing on high quality medicine and best practices to optimize any size business. Her proven ability to think strategically, leverage relationships and implement programs that drive organizational growth, efficiency and profitability are second to none.  Additionally, she has a passion for leadership development where she empowers and equips teams to change their mindset in order to achieve high levels of productivity.