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Gregory Simpson
Acting President   |  gregory.simpson@atdnyc.org

Greg is Managing Director at Agent in Engagement. He helps company leaders provide talented individuals with compelling reasons to join, engage, and stay with their organizations. Whether in a corporate or consulting environment, he's created award-winning workplace experiences for people at all levels of Fortune 150 companies such as Accenture, State Farm Insurance Cos, Deutsche Bank, and Microsoft. He believes an engaged workforce is the foundation of organizational success. That is why he's on a mission to help companies and their employees succeed by creating more meaningful, productive, and engaging workplace experiences.

Gabrielle Bayme
Vice President, Special Interest Groups  |  gabrielle.bayme@atdnyc.org

Gabrielle Bayme is a self-professed “learning addict” with a passion for discovering new and innovative ways to help people learn and develop on the job. She has a performing arts background and over 20 years’ experience as an instructional designer, trainer, facilitator, and coach. Gabrielle has implemented successful learning programs in both soft skills and technology skills in a wide range of contexts from schools and non-profits to the top financial services and consulting firms. She is currently a Learning and Development Manager at Alvarez and Marsal, a management consulting firm where she partners with internal clients to develop and implement of blended learning strategies and programs in areas such as onboarding, employee engagement, and leadership development. Her goal is to help organizations move away from traditional “one and done” training courses towards learning experiences that are continuous, learner-focused, and integrated with peoples’ day to day jobs.

Gabrielle is a proud resident of Upper Manhattan, where her family consists of a Shakespearean actor and a 70 lb. rescue pit bull pursuing a career as a lap dog. Her interests include yoga, keeping up with the latest technology and gadgets, singing, dancing, kayaking, and swimming in the ocean as much as possible.

 Jill Greenbaum

Vice President, Membership  |  jill.greenbaum@atdnyc.org
Jill Greenbaum is deeply engaged in learning, and personal transformation. Throughout her career, she has assiduously discovered new ways of helping people be their best selves. Her path started in the world of education, as a teacher, principal, and then administrator in settings serving students with special education needs. Jill holds a doctorate in curriculum development from Teachers College, Columbia University.

For the past twenty years, she has grown her firm, which offers instructional design, training, facilitation, speaking, and coaching services. She creates bespoke sessions, with a focus on conscious communication for people in corporate, government, nonprofit, and education environments. Her expertise lies in co-creating experiences through a visualizing process that includes exploration into who is to be served, discovery of the needs to be met, understanding the environment in which people work, ensuring articulation of the criteria for success, and the creation of artifacts to support the entire process.

In her life outside of work, Jill loves to travel, create art, race-walk, kayak, bake, and read. She lives just outside NYC with her husband, Steve Weinstock, and their Muddy Paws rescue, Gus.

Glenn Brodsky 
Vice President, Marketing  |  glenn.brodsky@atdnyc.org

Glenn E. Brodsky is a New York City-based talent development professional who is passionate about empowering other’s to grow, unlock their potential, and take action towards becoming the best version of themselves.

He found his passion for helping others develop during his graduate assistantship at Montclair State University, as the program manager for the Center for Leadership Development.

Glenn has his Master's Degree from Montclair State in Industrial & Organizational Psychology with a minor in Leadership Development. He also has his Organizational & Executive Coaching Certificate from the New York University School of Professional Studies.

After grad school, Glenn joined the Learning and Development team at AXA Equitable, a global financial services firm. A year and a half into his role, he became eager to learn the business and increase his financial literacy. He got his Series 7, Series 66, and Life, Accident, and Health Insurance licenses – and joined the advisory side of the firm as a financial consultant. 

After deciding that he wants to transition back into Talent Development, Glenn joined Macmillan Publishers, where he is currently the Talent & Development Program Manager.

He lives by the beach in Brooklyn with his wife, baby daughter, & rescue dog. He enjoys spending time with family, travel, photography, and connecting with others.

Adil Ibrahim
Vice President, Programs  |  adil.ibrahim@atdnyc.org

Growing up in a military family, Adil had frequent exposure to conversations of training, team building, morale, and mission/vision setting. Seeing the parallels between the military and organizational development, Adil pursued studies in Psychology and Human Resources at Michigan State University, and then later at New York University, honing in on how the fields of training and organizational development have a fundamental impact on individuals, teams, and institutions.

Adil is passionate about taking business problems, paring them down, and applying learning and organizational development solutions to pull and push the right levers for a sustainable impact, all the while incorporating practices from the military whenever he can. He has published research on the Reggio Emilia social-learning methodologies and how they can be applied to adult learning in the corporate sector. He would love to talk to anyone who will listen about the difference between pedagogy and heutagogy. He has applied his methods at a variety of companies ranging from mortgage banks to ad agencies to IT consulting firms where he developed and led programs focused on the entire employee lifecycle ranging from onboarding to expertise development to manager and leadership development.

He obtained his coaching certification through Coach U and is working to make the world of work a better place for every worker. He also teaches storytelling workshops to artists, students, professional development groups, and the City of New York.

Adil lives in Sunnyside, Queens with his wife and a little baby boy who is just learning to run at speeds that make Adil worry every time.

Ekta Lall Mittal
Vice President, Technology  |  ekta.lall@atdnyc.org

Ekta Lall Mittal has spent more than 15 years enabling organizations to create an environment for people growth. She has crafted strategies, created processes and implemented systems that have helped organizations develop people in a rapidly changing environment. As most companies are going through a digital transformation, it’s imperative that people have the right skills to perform their current and future jobs.

Ekta currently leads the Learning Innovation, Technology and Analytics at Colgate-Palmolive. Here she is tasked with bringing the learning transformation, to help create a culture of continuous learning to enable success in fast-paced, changing environments.

She is always looking for new and innovative ways to help create learning strategies for today’s workforce to achieve tomorrow’s goals. A continuous learner herself, she holds an Engineering degree and an MBA in Human Resources.

Lindsay Fletcher
Vice President, Operations  |  lindsay.fletcher@atdnyc.org
Lindsay Fletcher has extensive experience across a number of roles in management, operational and talent development positions. He has led large teams and run many international projects, allowing him to build a strong skillset in data analysis and reporting for both internal and corporate client audiences. Lindsay has worked in a number of global positions developing successors and supporting seamless transitions into his existing role, before moving on into other business areas. He has designed various new operating procedures based on the departmental and regional requirements, and built playbooks to be used by new and existing team members.
In his current role as Director of Talent Development he founded Ten Academy, and has responsibility for building scalable TD strategies to develop a leadership pipeline, drive retention, and boost account growth. He leads a team of 16 TD Managers, serving 900+ employees across 22 offices, handling all talent development needs from onboarding and corporate program launches to leadership development and performance management.

 Linda Tapp 
Vice President, Finance  |  linda.tapp@atdnyc.org

Linda Tapp has over 30 years of experience in safety and ergonomics. She has developed and conducted hundreds of training classes using the SafetyFUNdamentals principles for Fortune 500 companies as well as government agencies including Rohm and Haas, Valvoline, Virgin Atlantic, ABC Broadcasting, The University of Medicine and Dentistry of NJ, and the United States Mint.

Linda is a frequent author of training related articles and presenter on training techniques.

Additionally, she is a contributor to The Safety Professional’s Handbook (Co-Author of the chapter titled “Safety and Health Training: Benchmarks and Performance Appraisal” and The Consultant’s Business Development Guide (Author of chapter titled “Marketing and Sales”). Both books were published by ASSP. 

She has authored various articles related to safety and training which have been published


MS in Environmental Health, Temple University, Philadelphia, PA

BS in Biological Sciences, Drexel University, Philadelphia, PA


Certified Safety Professional (CSP) - Comprehensive Practice and Ergonomics

Associate in Loss Control Management (ALCM)

Rosemary Okoiti
Vice President, Talent Management  |  rosemary.okoiti@atdnyc.org

Rosemary Okoiti is an experienced learning and development professional passionate about designing and delivering engaging learning solutions that help learners grow to their highest potential while driving achievement of strategic business goals. She has global experience in three continents and four industries (banking and micro finance, car rental, education and pharmaceuticals) and previously worked as training manager in the financial sector, where she managed the design and implementation of leadership development programs for banks and micro finance institutions. Currently, she works for Aplicare Inc. as trainer.

She has been a member of the ATD NYC chapter since 2013 and ATD National since 2014. An active volunteer in the Chapter for the last 4 years, responsible for hospitality in the Programs Committee, Guest Relations within Membership, as Assistant VP of Technology and as Vice President of Talent Management in 2019. She also serves as the Chair of the Volunteers Committee for the 2020 ATD Forte Regional Conference.

Rosemary holds an M.Ed in Entrepreneurship Development from the University of Illinois, Urbana-Champaign and a B.Ed in Economics and Business from the University of Nairobi, Kenya.

She is a Certified Professional in Learning and Performance (CPLP), a Reviewer for the ATD BEST Award winners and a Judge for the CLO LearningElite Program. 

Art Weiss
Chapter Administrator  |  contact@atdnyc.org

Art Weiss began administrative work with ASTD in 1998; a time when member service was mostly by telephone and fax. Within a few years, records were shifted from typed lists to spreadsheets and email came into use as a primary means of communication. Hired because of his strong organizational and computer skills, Art has assisted the chapter in a variety of ways, including providing input to the Board about the requests from chapter members and those inquiring about membership. He also maintains information about our various events and serves as a welcoming presence at chapter events.

A native of New York City, Art left Pre-Medical studies to become a piano and music theory major at the Manhattan School of Music. A major musical and organizational achievement was his fourteen-year tenure as Entertainment Director at the New York Playboy Club.

Art is currently active as an accompanist to several singers on the New York cabaret circuit. He combines an active career as a musical conductor, vocal coach and performing pianist with musical composition. 

Telephone: 212-479-7397
Email: contact@atdnyc.org

Chapter Incentive Program (ChIP) code for td.org store purchases: CH1026

ATD New York City Chapter
PMB 347
459 Columbus Avenue
New York, NY  10024

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