The Core Confidence Life helps individuals and groups develop and hone their public speaking and presentation skills. CCL also coaches and educates men on self-confidence and a productive mind-set. Based out of New York City, CCL services clients across the US.

CCL helps to support, develop and operate on the holistic concept of living life authentically, from the soul. Soul living is when one is not run by ego, but operating from the inner Self, connected to the genuine spirit or psyche present in each of us.

Psychologically integrated and in touch with feelings, living from the soul and in touch with your spirit energy frees you from self imposed limits and clears the path to personal happiness and success. Both the art of public speaking, and the art of confidence and mind-set offer the same challenge and reward. To become more than you think you can, and move your life up to the next level.

CCL specializes in assisting clients in developing messaging and values, goals and strategy, and harnessing spirit energy. I started this business to help men overcome low self-esteem and lack of confidence. Men who are being held back in their personal and professional lives by second guessing and fear of perceptions. I come from the same place and want to support men through that journey. I was also amazed at how many people did not know or discounted their own talents, and I want to help you discover and cash in on those talents. I am looking forward to developing more support and advocacy initiatives to inform, encourage, and empower men to achieve personal success.

I invite you to have a conversation with me about where your life is, where you want it to go, and how CCL can help you get there.
Dennis R Sumlin, Founder

Contact me. Lets talk about confidence!.

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Personal Background

Erickson Certified ICF Accredited Life Coach

I hold a Life Coach certification from Erickson Colege International, as well as a Distinguished Toastmaster (DTM) certification from Toastmasters International (Speaking and Leadership), where I have won a few speaking contests.

Distinguished Toastmaster award

I have appeared on radio spots for companies such as Vanda pharmaceutical and other brands, and have spoken at places such as The City Colege of New York and other venues on topics around self-confidence and being authentic. I teach public speaking courses in NYC and online.

I host a few podcast shows as well, including The Core Confidence Life.

Podcasts and publications

  • I currently host The Core Confidence Life Radio (CCL), a show on Confidence and men’s development.
  • I currently co-host The Summit, a podcast on personal and professional development.
  • I write a monthly column on personal development for Consumer vision Magazine.
  • I currently host The Pop Top Music Program, a music show based on the US Billboard Hot 100.
  • Facebook group

    The Cor Confident Man

    If you are a man looking to communicate better, attract what you want, and get clear on your vision, join a supportive community of like minded men. Join The Core Confident Man!


    Reach out to me if you have questions, or want to set up a consultation

    Contact me. Lets talk about confidence!.

    * indicates required field