Bucktown Grand Slam

is a business consulting and training company focused on innovation, disruption, product strategy, grassroots marketing and sales, making money, and having fun.

The company is named after “Denny,” my three-year-old German Shorthaired Pointer.  Bucktown Grand Slam is Denny’s AKC registered name.

Denny demonstrates the values of the company.  Enjoying life is his priority.  He is honest, and you never have to guess what Denny is thinking.  He is unabashedly passionate and disruptive.  Denny is a loyal friend, a passionate dock diver and swimmer.

Bucktown Grand Slam
Founded in 2021 by John Spencer, Jr.

Attorney, Business Management, Inventor, Plant Manufacturing Manager, Engineer, Submarine Warfare Officer, and Author.

John was born in Mishawaka, Indiana, and is a graduate of the United States Naval Academy and the University of Maryland School of Law.  John is the inventor of GLIDE® Floss and successfully launched the product while employed at W.L. Gore & Associates, Inc.  At Gore, he also built a team and led the launch of ELIXIR® Strings.  Both products continue to be leaders in the market.  At Eaton, John led Industrial Sector business development and served as Vice President and Chief Counsel, global contracts.

Image J Spencer and Denny
John Spencer, Jr. – Founder with Denny

Bucktown Grand Slam Mission:


Innovate – Disrupt – Make Money – Have Fun


 John is an accomplished public speaker, leads strategic and governance reviews, consults on new product launches, and is an innovation coach.