About OBATS

The Official Behavior Adjustment Training School

We are the only licensed entity authorized to certify BAT Instructors, and the place to find those CBATIs.

Our Team

Grisha Stewart, Founder of Behavior Adjustment Training

Grisha Stewart is the founder of Behavior Adjustment Training (BAT) and a leader in empowering animals and humans to meet their needs in harmony.

As trainers and caretakers, we have the opportunity to facilitate two-way communication, empower animals to meet their needs, and teach them how to participate in their own care. Doing so prevents problems and makes for happier families.” Grisha has been teaching BAT to trainers and the general public since its first inception in 2011. Her BAT seminars and workshops have lead her all around the world, positively impacting the lives of thousands of dogs and their humans.

Ellen Naumann, Founder and President of the School

Ellen founded The Official BAT School in 2017, after serving as the BAT Program Director for Grisha Stewart/Empowered Animals LLC since 2012. In this role, she oversaw the Certification Department, and worked closely with Grisha on the Instructor Certification Courses. “I am so honored to work with CBATIs and the OBATS Faculty. BAT is one of the most effective methods to help reduce reactivity, and is likely the #1 method to prevent reactivity. The opportunity to interact with so many talented and knowledgeable trainers through the Official BAT School is inspiring!”

Ellen began her career in dog training by volunteering at a Los Angeles County Animal Shelter and soon began working with dogs professionally. She became a Certified Behavior Adjustment Training Instructor (CBATI) at the very first course offered in 2011 and has continued to share her passion and knowledge of BAT with her many clients. Ellen shares life with her dog, Skittles, who can often be found assisting in a BAT Set-Up.

Lisa Walker, Founding Member and Vice President, OBATS

Lisa is devoted to helping “previously misunderstood” dogs and has personally rescued, fostered, trained and successfully placed hundreds of dogs, one at a time, from rural shelters and dog pounds over the last 30 years. Through her business, Center for Canine Excellence, and the workshops and classes she facilitates at a local shelter, she shares her passion for a relationship-based approach to training and behavior problem solving. Lisa specializes in working with families who love and live with dogs who sometimes bark, lunge, growl, bite and/or exhibit anxious and fearful behaviors.

Lisa was introduced to Behavior Adjustment Training in 2011 by Dr. Nick Dodman at Tufts Animal Behavior Clinic, who suggested BAT for a White German Shepherd Dog she had recently rescued (now her beloved, Seguin). “BAT literally saved Seguin’s life.” Lisa became a CBATI in 2012 and has been a Team Leader with Grisha at Instructor Certification Workshops and a member of the Certification Evaluation Team.

Lisa shares her home in Maine with her husband, Mike, and their rescued dogs; two German Shepherds, a Rough Collie, a Dachshund, and a Japanese Chin.

Katrien Lismont, Founding Member and Vice President, OBATS

Katrien lives and teaches in Germany and France. Her dog career started in 2003 with Tellington TTouch® Training. She attended the International Dog Trainer School of Sheila Harper (UK). She studied Clicker training at CumCane, a system of tools compiled by Dr. Ute Blaschke-Berthold. She is a Bach Flowers Counselor through Dr. Med. Götz Blome. In 2011 she met Grisha Stewart at a two day seminar in Switzerland, a major milestone in her quest for solutions for dogs who may exhibit reactivity. She immediately implemented BAT in her dog training center with impressive results, and hosted a BAT Instructor Certification course in Germany in 2013 and became a CBATI in 2015. Katrien participated in Dr. Susan Friedman’s LLA Course on Applied Animal Behavior Analysis in 2014 and in 2016 attended a 6-day workshop led by Dr. Friedman and Chirag Patel. She offers a holistic approach to dog training by applying BAT, clicker training and TellingtonTTouch in her DOGood® Training center. Katrien travels throughout Europe giving workshops for dog guardians and professional trainers on a variety of topics. She is the author of two best selling books, “Hund trifft Hund” (Dog meets Dog) and “Ums Eck Gedacht” (Thinking Around the Corner). Katrien shares her home with her husband, Paul, and their two Boxers, Wenonah and Eden, and her French Bulldog, Hutch.

Jennie Murphy, Director of Online Certification

Jennie has been a CBATI since attending an Instructor Certification Course in 2012. She’s also been a lead member of the Certification Evaluation Team for over five years where she delivers a keen eye on reviewing video submissions for certification. Jennie is always looking for ways to improve her skills and help clients using the most modern science-based training techniques. She has studied on line courses/workshops such as Grisha Stewarts Animal Building Blocks Academy, Play Your Way Academy, One Happy Dog, DPF Agility, Karen Pryor Clicker Training courses; Susan Garrets Recallers, Puppy Peeks, Nosework Courses and over seventy on line learning classes with the Fenzi Dog Sport Academy. She volunteers her time at Humane Services training the shelter dogs in hopes of making them “more” adoptable. She is also a member of the Newfoundland Athletic Dog Association both in the capacity as an instructor and as a student.

Betina Sabinsky, Faculty

Betina Sabinsky of Denmark has been a CBATI since 2014 and is a lead Instructor for BAT Certification Courses. Her business Dog Wise, offers BAT training, private behavior consultations, and individual training in person and remotely. She is a dog behaviorist  and professional trainer located in Karlslunde/Roskilde specializing in stress, anxiety, fear, aggression, and resource defense behavior in dogs. Says Betina, “I have been working professionally with dogs for 18 years and this has been, and still is, the most fantastic journey of my life!”

Together, we are training certified instructors (CBATIs) all over the world!