Call Us (847) 530-3471 · tom@rosenak.com

Our Team

Tom Rosenak

Leadership Communication Specialist

Hello, new friend. How are you? I’m so happy you’re here. I’m Tom. I created Diamond Mind to help people. Every day, I get to work with individuals, teams and organizations to help them transform and elevate their performance, to drive results by deploying their strengths and improving relationships. The currency? Conversation.

It’s human. It’s a process. It’s propelled by questions.

What’s the first thing to go when we feel stuck? That small, still voice that knows who we are, where we want to go and how to get there. I can help you reconnect to that voice by asking the right questions and having the right conversations.

We can do all of this together. Overcome your barriers. Look them in the eye and listen to them. Improve your sales results and presentation skills. Have a stronger executive presence. Transform your team’s performance. Mine for diamonds in the rough.

Simply put: Let’s get true. Let’s do it for you.
So you can live your truest you.

“I hired Tom to work on presentation, negotiation and sales skills for my agency's account and sales staff. The results were truly spectacular. Tom advanced every individual, working with their natural abilities, regardless of current competency level, to achieve best in class presenters, negotiators and sales people. His passion, energy, expertise and vast subject matter knowledge creates a learning environment that is highly motivating and results driven. I could clearly see the positive growth in each staff member not only days after training but years later. Tom's has the rare gift of reaching every individual where they are and getting most from what they have. If you want to move yourself or your staff forward to achieving excellence in a number of professional skills, hire Tom. He will produce tangible results immediately that will provide a bountiful return on your investment for years to come. I gladly offer my highest recommendation.”- Mike Shutty, Chief Executive Officer, CFM Direct
“I had the good fortune to be coached by Tom as I was preparing for a significant presentation at a national data quality conference. I found Tom’s coaching to be extremely valuable in building my skills and my confidence. I have had the opportunity in my career to take numerous public speaking classes and seminars, so I know the basics and work hard to ensure that I am doing my best when presented with the opportunity to give a speech. Tom’s coaching, however, was absolutely the most significant and meaningful coaching in presentation skills that I have ever received. Tom was totally focused on enhancing my presentation, and provided me with a number of really helpful suggestions, tools and tips to help me achieve a new level of confidence in my public speaking abilities. Tom was firm but supportive, providing me with direct and actionable feedback. I am extremely grateful to have had the opportunity to work with Tom, and I would give him my highest recommendation. He is thoughtful, practical and professional. I strongly recommend Tom to any person who is serious about enhancing their professional communication and public speaking ability.”- Sharon Murphy, Vice President Global Equity Operations , Morningstar, Inc.

Rebecca Tanaka

Leadership Communication Specialist

Rebecca Tanaka is a top-notch trainer, coach, instructional designer and author with a world of experience in private business, government and education — and she has satisfied clients and students all over the world to prove it.  Rebecca develops and conducts in-person and virtual soft skills training and coaching programs for a broad range of businesses, not for profit organizations and universities in the United States, Japan and Finland. She has also published six books and over 30 professional and academic articles. She holds numerous awards including Outstanding Employee of the Year from the Naval Submarine Base Bangor and Best Table Topics speaker from Toastmasters. Programs that Rebecca has developed include the following:

  • ADDIE instructional design
  • Advanced professional writing
  • Academic writing
  • Body language
  • Conflict resolution
  • Dealing with difficult people
  • Negotiation skills
  • Intercultural communication for business
  • Presentation skills
  • Presenting technical material to non-technical people
  • Principles of Adult Education
  • Project management for non-project managers
Rebecca conducted a one-hour workshop at our Business Leaders Luncheon on discovering your negotiating personality and setting negotiating targets which was amazing. Our members said it was one of the best if not THE best program we have ever had. They liked it because it was interactive, applicable, and easy to apply in their work.- Stephen Territo, President, Lincolnshire Chamber of Commerce
To schedule a 15-Minute Discovery Session: Call (847) 530-3471 or
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