DIAN GRIESEL, Founder & President

Dian Griesel is a perception analyst, professional confidant, entrepreneur, author and podcaster whose work centers on a single question: How does perception shape the decisions we make, the people we trust, the way we communicate, and the outcomes we create?
As Founder and President of Perception Dynamics Inc., Dian provides confidential advisory to individuals, executives, entrepreneurs, boards and organizations navigating consequential decisions, conflicts, opportunities, transitions and perception challenges. She serves as a private sounding board — helping clients examine assumptions, communication, nonverbal cues, history, emotions, motivations and power dynamics so they can see situations more completely and make better-informed judgments.
Dian’s perspective combines over three decades of business experience coupled with ongoing advanced training and certifications in perception, communication, consulting hypnosis, NLP and unconscious behavioral dynamics. This interdisciplinary background has sharpened her ability to listen for what is said, unsaid, assumed and sometimes not yet recognized — and to identify patterns that can be difficult to see from inside a situation.
Background & Career
Dian began her counseling career in private practice, working with individuals — many confronting serious illness and death — referred through a medical group affiliated with Lenox Hill Hospital. Her media appearances surrounding this work eventually led to her recruitment by a healthcare-focused venture capital firm and an unexpected transition into the corporate and capital-markets world.
In 1996, she founded The Investor Relations Group (IRG), a corporate communications and strategic advisory firm serving public companies, venture-backed businesses and investment firms. As Founder and CEO, Dian advised the C-suite of nearly 400 companies and participated in more than 10,000 investor- and media-facing meetings.
Her work encompassed capital formation, strategic communications, shareholder and stakeholder relations, regulatory matters, financings, activist situations, litigation, boardroom disputes, public crises and reputation management, with exposure to the SEC, FINRA, FDA, FTC, Department of Defense and other regulatory bodies. Under her leadership, IRG generated more than $150 million in revenue before being acquired in 2012 by Rodman & Renshaw, then a publicly traded investment bank.
That experience — building and running a business, advising hundreds of leadership teams, navigating highly regulated environments, and observing thousands of consequential interactions — remains foundational to Dian’s advisory perspective today.
Dian holds Corporate Governance certification from The Wharton School and has completed NYSE and NASDAQ background clearances for public-company board service. She is a member of the American Counseling Association and a lifetime member of the International Association of Counselors & Therapists.
Author, Podcaster & Media
Dian has authored and self-published 16 books spanning business, communication, investor relations, fundraising, leadership, health and personal development. Her work has also contributed to academic texts used in graduate-level programs, including the Harvard MD/MBA curriculum.
She hosts the Silver Disobedience® Perception Dynamics™ Podcast, where conversations with entrepreneurs, executives, researchers, physicians, authors, creatives and other accomplished guests explore perception, human behavior, business and life. The podcast currently averages more than 235,000 listening hours per month and ranks in the top 1% for engagement.
Her @SilverDisobedience platform began as a long-form social media blog and evolved into a broader media presence focused on perception, human behavior, personal development and the insights that emerge from paying close attention to people.
In her mid-50s, Dian was scouted by Wilhelmina Models after appearing in international campaign collaborations with Lancôme, a L’Oréal company. She continues to selectively collaborate with brands and pursues photography as a personal interest.
Across these seemingly different chapters of her career, the underlying interest has remained remarkably consistent: People — what they see, what they believe, what they miss, what they want, what they fear, and why they do what they do.
Today, Dian brings that accumulated experience to her private advisory work, lending clients her perspective when decisions carry consequence and clarity matters most.
In addition to private advisory, Dian is available for select board, advisory board and strategic advisory roles.
Private Advisory
Engagements include individual consultations, hourly and retainer relationships, asynchronous written or voice advisory, meeting observation or participation with post-session analysis, and strategic positioning counsel.
Confidentiality is fundamental to Dian’s work. Private advisory relationships are covered by written confidentiality agreements (NDAs).
212.825.3210
Dian@DianGriesel.com
DianGriesel.com
C.V. Available Upon Request.

ANTHONY CELANO
Managing Director of StreetWise™ Trainings
Anthony Celano founded StreetWise Communication Training, which is now offered as a leadership development program by Perception Dynamics Inc. A retired New York Police Department (NYPD) Detective Sergeant Squad Commander with 22 years of service, Mr. Celano’s assignments included the Queens District Attorney’s Office Squad; Drug Enforcement Administration (DEA) Joint Task Force; Organized Crime Control Bureau; and, the Colombo Organized Crime Task Force. His leadership and investigative work led to testimony in major state and federal organized crime cases nationwide. Mr. Celano brings over four decades of investigative, law enforcement, and corporate security expertise to every StreetWise™ training he leads.
Following his distinguished NYPD career, Mr. Celano founded Full Security, Inc., a midtown Manhattan investigative firm serving Fortune 500 clients such as Morgan Stanley, Pepsi, McGraw Hill, Pershing Capital, BBDO, and PricewaterhouseCoopers. He also developed the StreetWise™ Communication Training Program, providing tailored risk-mitigation and communication training to organizations including News Corp, Bear Stearns, Rutgers University, Marsh & McLennan, and the NYPD.
Mr. Celano has been featured in Forbes, Crain’s New York Business, and Security Management Magazine, and has contributed to numerous industry publications, including Security Director Magazine and the ASIS Best Practices Manual. He co-authored Basic Security Investigation (Gould Publishing, 1996), with a preface by former NYPD Commissioner William Bratton. Notably, Mr. Celano is also an avid writer and the author of 8 Sergeant Markie Mystery Series novels and counting.
Mr. Celano holds multiple commendations from the NYPD, DEA, and American Legion. He is also a member of the Membership Committee of Tiro a Segno of New York, is a former Board member and served on their nominating committee. Mr. Celano is a Director on the Executive Committee of the Gotham City Networking Foundation and he hosts Authors/Wordsmith Networking Luncheons along with Peapack Private. Mr. Celano earned both his MA and BA in Sociology from Long Island University and St. Francis College, respectively.
Perhaps we start with a complimentary 30 minute call to discuss your needs and objectives.
📞 212.825.3210
📧 Dian@DianGriesel.com
🌐 DianGriesel.com

Here’s a mini-sampling of media coverage.
- Strategic Advisor Guides C-Suite Executives Through High-Stakes Decisions with Three Decades of Experience (The New York Telegraph)
- The Science of Reading Rooms How One Advisor Decodes Corporate Power Dynamics (Insider Weekly)
- Popular Podcasts from the Over 50 Crowd (Next Avenue)
- The 11 Best Times to Switch Jobs (U.S. News & World Report)
- Why Resilient Executives Are Better Leaders (SHRM.org)
- Multitasking and Mindfulness: Can They Work Together? (AMA Quarterly)
- ‘Being Yourself at Any Age Is Priceless’: Silver Disobedience influencer Dian Griesel on aging, priorities and surprise selfies (Next Avenue, PBS)
- Influencer Campaigns: Considerations When Choosing Creatives (Forbes)
- Your Longevity Plan Needs a Dumbell (LivelongMedia)
- Eliminate Assumptions and Listen with Your Gut (JLeder)
- Walking: Why You Should Do More at Any Age (Fit & Well)
- Rebound to a Healthier Happier You (City Lifestyle)
- The Advice a Successful Career Woman Wishes She Could Have Told Her Younger Self (Well + Good)
- Three Reasons Why Marketers Shouldn’t Overlook the Silver Generation (Forbes)
- Necessary vs. Unnecessary Public Speech: What is the Divide? (Forbes)
- Social Media: There Will Be Haters (Forbes)
- Why it Pays to Not Always Be “Right” in Business (Forbes)
- Making a Big Life or Business Decision? Write the Press Release First (Forbes)
- Work Life Balance: How Gene Simmons Saved My Soul (Inc. Magazine)
- What I Wear to Work (Bloomberg Business)
- The Many Uses of Images in Photography Therapy (Feature Shoot)
- I’m a 62-year-old Instagram influencer who also owns a PR firm. I worried what my clients would think, but being on social media has actually helped my career. (Business Insider)
- Woman to Watch: Dian Griesel (Sass Magazine)
- Sharing Insights on Aging (Healthline)
- A Time for “Silver Disobedience”: Dian Griesel on Modeling at 60 and Loving Yourself at Any Age (NBC: Know Your Worth)
- The Writer’s Block (LA Talk Radio)
- Word Play with Kristine Raymond (Word Play)
- The Best and Most Motivational Books for Women (ImproveHerHealth)
- When Writing a Book Sparks a Movement (Authority Magazine)
- Speak to Your Audience as an Equal (Thrive Global)
- 13 Women Entrepreneurs Talk About Their Nighttime Rituals (Morning Laziness)
- Silver Disobedience: An Interview with Dian Griesel (EndPain)
- The Real Reason Why I Wrote The Silver Disobedience Playbook (AARP)
- Fashion Over 50 Gets Attention on Instagram (AARP)
- Social Influencers Over Age 50 (AARP)
- Dian Griesel Lets Her Hair Go Gray in Style (Video; AARP)
- TurboCharged: A New Way to Lose Weight (ABC-TV)
