Contact Us

Get in touch!

Call Us

Achieve Your Dog’s Best Behavior From a Certified Dog Trainer & Behavior Consultant

Dog Training and Behavior Modification on Long Island

Certified IAABC Behavior Consultant
Fear Free Certified Professional Logo
Family Dog Mediation Logo

Make Improvement Today! We Can Help With…


Anthony is a Certified Dog Behavior Consultant by the IAABC and specializes in working with aggressive behavior, using a humane approach.


Qualified help for fear, anxiety, reactivity, impulse control issues, aggression and much more.


If your dog barks and/or lunges at dogs, people, vehicles etc., Anthony can help you! As a Certified Behavior Consultant and Trainer, one of Anthony’s areas of expertise is helping dogs with reactive behavior.

dog sitting


Set your dog up for success with one-on-one training offered in the comfort of your home (or other locations you desire).

puppy silhouette


Start your puppy off right! Learn how to develop a long lasting relationship with your puppy through positive reinforcement training and play! All training is done using a kind & humane approach.


An effective way to get professional advice and coaching from the comfort of your home. We can do it all together live, in real time!


If you are seeking help due to a challenging situation or you need to make a difficult decision such as rehoming, relinquishing etc., Anthony can help you explore all of your options.


Designed to help you before you bring home your new puppy or adult dog.



If you are a dog trainer or behavior consultant seeking help on a difficult case, looking to collaborate or seeking private coaching; Anthony can help.

Book cover of 20 Tips to Dog Training & Behavior Modification Success
Book cover of 20 Tips to Dog Training & Behavior Modification Success

Meet Anthony De Marinis


Anthony De Marinis

Here to help you and your dog live your best lives together!

Anthony holding Quest

Certified Dog Behavior Consultant- IAABC
Accredited Dog Trainer- IAABC
Family Dog Mediator- Licensed Professional
Fear Free Certified Professional

✓ Certified & Professional

✓ Recommended by Veterinarians, Behaviorists & Trainers

✓ Educated in dog behavior & training

✓ Friendly, Humane, & Science-based

✓ Providing In-home & Virtual Training & Behavior Services

A Humane & Fair Approach

Our approach is to teach owners how to guide their dog to success. We do this by providing individual training and/or behavior plans that are customized based on the needs and goals of each dog and owner. All private lessons are one-on-one in the comfort of your home or other location(s) of your choice.

Owners will learn how to:

  • Train and work with their dog using reward based training concepts, fun exercises and play
  • Change behavior and manage behavior
  • Understand their dog and why their dog does what he or she does
  • Develop an enjoyable relationship with their dog
  • Set their dog up for success in and out of the home
  • Create clear and consistent rules and boundaries
  • NOTE: We do NOT offer quick fix approaches

Our Philosophy

Training and behavior modification are provided using a variety of methods, mainly focusing on positive reinforcement techniques such as using rewards to reinforce and motivate your dog (food, play, interaction and exploration).

We follow the principles of LIMA (Least Intrusive, Minimally Aversive). This gives us the opportunity to meet the dog and owner where they are. The use of LIMA generally starts with using the least intrusive, most positive and humane approach possible for the individual dog. LIMA allows professionals to be objective and critical thinkers who decide when and how to use a variety of training and behavior modification techniques and interventions based on the individual case and situation. Just like with humans, dogs learn, work and are motivated in different ways. LIMA allows us to decide what is the best approach for the dog.

 Benefits To Our Approach

✓ Individualized approach for both the dog and owner

✓ Training becomes enjoyable for your dog as he or she gets rewarded for a job well done

✓ Uses play and enjoyable interactions to create motivation and joy

✓ Teaches skills while setting boundaries and rules in a clear and consistent manner

✓ Fosters a relationship between the dog and owner using a friendly and humane approach

✓ Proven results for both training and behavior modification for dogs of all ages and breeds

Serving Long Island's Nassau & Western Suffolk Counties

Nassau County:
Manhasset, Port Washington, Rosyln, Glen Head, Sea Cliff, Glen Cove, Oyster Bay, East Norwich, Muttontown, Jericho, Syosset, Woodbury, Plainview, Bethpage, Mineola, Garden City, Westbury, Hicksville, Levittown, New Hyde Park, Williston Park, Merrick, Bellmore, Wantagh, Massapequa

Suffolk County:
Cold Spring Harbor, Huntington, South Huntington, Greenlawn, Northport, Commack, Dix Hills, Melville

We DO NOT Service the following areas:
Queens, Floral Park, Great Neck, Hempstead, Franklin Square, Five Town’s area, Valley Stream, Lynbrook, Rockville Centre, Freeport, Long Beach, Amityville, Babylon, Lindenhurst, Deer Park, and anything east of Kings Park,  Brentwood and Bayshore.

*There may be areas that cannot be serviced due to the trainers schedule and caseload. 

*If you are not in our service. area, we offer virtual sessions and have limited appointments at our studio. 

Our Favorite Training Products

photo of neon orange Freedom Harness

Freedom Harness

The Freedom Harness is our favorite front clip harness!

photo of Voila ultimate treat pouch in charcoal

Voila Treat Pouch

Fully synthetic treat pouch that is easily washable. Get 10% off with Promo code: ANTHONYDEMARINI

dog wearing sidekick head halter in blue

Sidekick Head Halter

The Sidekick is our favorite head halter for those who pull a little to much.

Client Testimonials

“Anthony is the best! My 2.5 year-old rescued Pitbull, Ace, was displaying resource guarding and aggression. After working with Anthony for a couple of months both over zoom and in-person, Ace has improved so much.”

Brittany A.

“I was referred to Anthony by another trainer for aggression and reactivity in my rescue puppy. Since working with him my dog has made tremendous progress. I highly recommend anyone with a dog who has behavior problems.”

Sharyn S.

“We LOVE Anthony! He helped us so much with our two special needs rescue pups, even coming over to accommodate a crisis late on a Friday night. He’s so passionate, he’s so knowledgable, he genuinely cares about the animals he’s working with.”

Kendall B.

“We got in touch with Anthony after our now 1-year old puppy, Grace, developed some aggression towards our other dog. After our training sessions with Anthony, she has come so far! Anthony really excels at explaining different techniques and strategies for training, and he is great at making sure we understand.”

Alysia O.

Anthony hiking in the woods with his dog, Journey

Get Our Free Guide!

20 Tips to Dog Training and Behavior Modification Success

Receive our training & behavior tips Ebook, FREE resources & updates right in your inbox!


Success! Your guide has been sent to your email.