Leadership Team


Robert Grossm

Robert GrossRo

Robert Grossman

President 2020-2021 and Chairman of the Board


Robert Grossman founded Black Diamond Leadership in 2016 to provide High-Performance leadership and team development programs and coaching previously available only to Fortune 500 Companies.  It is Robert’s vision to bring the same level of employee development programs to small and midsize companies.  Robert works with companies to drive peak performance and implement a culture of engagement among employees. With an emphasis on emotional intelligence, communication, and trust, Robert and his company deliver compelling speeches, coaching, workshops, seminars, and webinars and is based in Westlake Village, California.

Dwight W. Holcomb

Immediate Past President (2019-20)


Dwight W. Holcomb is the author of the Amazon Bestseller, "The Lean CMO" and the host of the business television show, "SaaS CEO Success TV" on the C-Suite TV.  The C-Suite Network has global distribution in more than 59 million homes.

Dwight is the CEO of HC Development, providing MaaS CMO™ , Marketing as a Service with "Fractional CMO" Executive oversight to the Software industry.  Dwight speaks Internationally on the topic of Marketing Technology & Innovation.  Dwight sits on the Board of several privately held companies and is a founding member of the Anderson CEO Forum.

Karine LeBlanc

President Elect 


Karine Leblanc, sales engineer and leadership expert, helps busy consulting engineers with  their HVAC design projects by supporting them with various system ideas and efficient equipment solutions. Not your typical engineer™, Karine is passionate about helping engineers step up their leadership skills by learning how to build lasting relationships, communicate effectively and become an influencer without relying on any title.

Like many of you, Karine has been exposed to the good and the bad of leadership over the last two decades. She uses her experience to teach and impact her peers by speaking as a distinguished lecturer for ASHRAE all over the world. Her strength is all about real-life stories and conversational connection with her audience making everyone feel like they matter. She is a John Maxwell certified speaker, trainer and coach. She is also a DISC certified trainer because “you must know yourself  to grow yourself” ~John Maxwell

Karine has served on the ASHRAE Society Board of Directors, (a 57000 members non profit organization) from 2014-2017 and became the first female Region X Director Regional Chair since 1959. 

Dave Rosenberg

Vice President


 Author of Locked On Leadership: The Tactical Business Guide to Creating a Culture of Consistency, Courage, and Caring.

A former Naval Officer, owner or president of President of six companies, Dave is now an author and speaker helping create high-performance, self-directed teams.


Larry Levine


Director of Membership Engagement


Larry Levine, best-selling author & Podcast host, with 30 years of in-the-field sales experience within the B2B technology space, knows what it takes to be a successful sales professional. 


Sara Safari



Sara Safari, award-winning author, speaker, mountain climber, college professor, Electrical Engineer and advocate for women empowerment, has served as a director & leader on multiple boards. https://www.climbyoureverest.org/

Sara received an award for The Global Citizen from United Nations Association in 2015. She is a board member and director of development in Empower Nepali Girls foundation. She also has received the award for Outstanding Practice with Broad Impact in the area of women and leadership from International Leadership Association in 2017.

Caitlin Crommett 

Director of Professional Development


Caitlin Crommett is a Millennial and speaker on the multigenerational workplace. She runs a national nonprofit organization, DreamCatchers, which bridges generational gaps in its work with terminally-ill & youth. 


John Brennan

Director of New Membership


John H. Brennan is an accomplished Speaker, Facilitator and Trainer, who has delivered countless programs for multiple brands. His delivery is engaging, educational and motivating. 


Tia Graham

Director of Marketing & Promotions


Tia Graham, host of The Happy At The Core Show, is an Inspirationist and the Founder of Arrive At Happy. Tia helps organizations increase leadership effectiveness and employee happiness so they can drive business results. 


AJ MacQuarrie

Director of Special Programs


AJ MacQuarrie is an entrepreneur who has been through it all; from the highs of turning a $20,000 investment into a multi-million dollar business to the lows of sitting in bankruptcy court. He is the former CEO of KarmaBox Vending, one of the world’s first healthy vending companies that expanded to over 80 cities across the United States in just 3.5 years. Currently the CEO of AJ Mac Media LLC, where he is on a mission to equip early stage entrepreneurs with the tools to succeed in launching their business. AJ is the author of the forthcoming book "The Setback Advantage: Crafting Your Comeback After Failures, Flops, & F*ckups," and lives in Los Angeles with his Goldendoodle and Scottish Terrier.