Our Team


Amy Nathan

Executive Director and Founder Gromentum Lab

Amy helps businesses launch new products and navigate operational transformation where government oversight and regulation drive the creation of new industries. Amy owned her first small business in college and soon thereafter parlayed skills abroad to social impact ventures between Israelis and Palestinians. After years as a management consultant for PricewaterhousCoopers and later at IBM, she created entirely new segments paving the way for societal impacts that Medicare Part D and the Affordable Care Act brought senior citizens and all uninsured Americans while leading efforts at CVS/Caremark and Blue Cross Blue Shield of IL. Most recently she re-vamped the Anti-Money Laundering operation in the Financial Services sector at BMO Harris Bank. When not working, she volunteers time with Chicago disadvantaged youth as a board member and Development Chair of Chicago Arts Partnership in Education (CAPE). Amy has been named to Mayor Lightfoot’s Chicago Working Cannabis Group.
Amy Nathan LinkedIn profile


Reverend Mitchell Johnson

Director of Corporate Responsibility


Bruce Montgomery

Technology & Entrepreneur Coaching Lead


Wendi Ezgur

Product Development, Innovation & Brand Lead

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Kelly Goldberg

Director of Education & Mentorship

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Ernest Downing Jr.

Business Development Lead


Reverend Mitchell Johnson, a Chicagoland community leader for over two decades hosts a popular weekly radio program on WVON, Chicago’s largest African-American radio station. Reverend Johnson is a nationally recognized economic development expert who helped hundreds of churches serve as a catalyst for economic growth and empowerment in their communities. He serves on the Advisory Council of the Simon Wiesenthal Center fighting bigotry and discrimination against racial and religious minorities. He has served as Chaplain of the National Policy Alliance (NPA) representing black public officials across National, State, and Local levels of government. Reverend Johnson is the Executive Director of My Community Plan Foundation (MCPF) directing financial resources to approximately 17,000 churches and other non-profit organizations. He currently an Associate Pastor at Hillcrest Baptist Church.

Recognized by Chicago’s Business, Technology and Cultural communities, Bruce founded Montgomery & Company, a digital media, information and communications technology company, Technology Access Television, Chicago’s longest running weekly TV news show on Tech and Innovation, and the Entrepreneur Success Program (ESP) in the Englewood community which provides small businesses counseling, workshops, education and access to capital and personal credit and money management services free of charge. 

Bruce gained expertise in business development through practical experience in public and private sectors of education, government, economic development, construction, health care, professional services, broadband infrastructure, software development and digital media enterprises.  

Most recently Governor JP Pritzker appointed Bruce to the Jobs and Economic Opportunity Transition Committee to help produce a new vision for community economic development. Bruce Montgomery LinkedIn profile

Founder of Leadhead Inc., an innovation consultancy. Wendi has over 25 years of experience working with hundreds of top brands around the world to generate new products and services. Her ideation process has produced top products for companies including Disney, Pepsi, Kraft, XM Radio, US Cellular and more. Wendi has also independently taken over 70 products from concept to market. She has been brought in to help manage the launch of over two dozen start-up companies and will be bringing this expertise to Gromentum Lab to ensure innovation and product development are at its core and to build strong branding from the ground up.
Wendi Ezgur LinkedIn profile

Kelly Goldberg is Gromentum Lab’s Director of Education and Mentorship and recently named to Harvey College’s Cannabis Advisory Council. Kelly brings a passion for the plant and expert knowledge of its health benefits and ancient roots. She has a deep understanding of the racially motivated historical prohibition of cannabis and is committed to social justice advocacy. Kelly is a 30-year veteran of the classroom, a Golden Apple Finalist and a lifelong mentor to adults and teens. She is the founder of Team Human Cultivation, an education consulting firm that supports teachers and students in and out of the classroom. Kelly advances Gromentum Lab through her education expertise and passion for social equity.
Kelly Goldberg LinkedIn profile

Developing relationships with social equity entrepreneurs. Ernest is with the Cannabis Equity IL Coalition, which has most recently been influential in cannabis social equity reform, has helped craft suggestions for diversity and equity legislation, and brought together Cannabis Equity Lobby Day for the Illinois Recreational Marijuana Campaign bill, which then passed on May 31, 2019. With over 20 years experience advising prominent professional sports contract advisors for sports attorneys Martin Greenberg, C.Lamont Smith, and NFL agents Norman Nixon and James Gould, Ernest’s record to bring industry leaders together for social equity entrepreneurs is a rare and unique asset.


Gromentum Advisors

Mike Frazin, Founder CEO, Mosaic Construction and Design Construction Concepts, Venture Capitalist and former Stock and Options Trader

Tom Churchwell, Venture Capitalist and CEO, Vimedicu

Robert Johnson, Managing Partner, Solomon Group; Partner Gordon & Reese, Principal Transworld Business Advisors, Fomerly Partner & Chief Inclusion Officer Quintairos; Prieto, Wood & Boyer; Formerly Franchise Relations/Ombudsman, McDonalds

Vincent Williams, VP Economic Empowerment & Director SBDC @ YWCA Chicago

Patrick Rea, Veture Capital Fund Manager and CEO Canopy Boulder

Rodrigo Garcia, Deputy Treasurer and Chief Innovation, Officer, State of IL

Jessica Velazquez, Founder & Managing Partner, Indiva Advisors LLP

Michael Goldberg, Owner, Goldberg Law Group, Cannabis Regulatory Compliance and Dispensary Licensing

Rosemarie Donzanti, Formerly Senior Vice President Customer Care, Anthem Health, CVS Caremark

Neal Sales-Griffin, Managing Director at Techstars, Chicago, entrepreneur, lecturer at Northwestern University and former mayoral candidate for City of Chicago

Marta Steele, Management Consultant and co-founder of women-led consulting firm, PeopleResults

Michael Ezgur, Owner, Acosta Ezgur Law, Cannabis Real Estate Zoning

Rachel Ivy, Executive Director at Communities Empowered through Construction Inc.

Dr. Karen Bloomberg PhD, Psychotherapist, Social Worker and Dean of Students, Institute of Clinical Social Work

Zeb Mclaurin, CEO Mclaurin Development Partners

Anne Bohne, Formerly Head Human Resources, AkzoNobel, LaSalle Bank

David Friedman, CEO, VividGro; Investor, Mentor and Financial Professional

Joel Hamernick, Executive Director, Sunshine Gospel Enterprises

Margie Lawless, Formerly Senior Vice President Risk & Control Management, Personal Banking BMO Harris

Michael Hanley, former Partner Strategy Practice Management Consulting Services, PricewaterhouseCoopers

Mitchell J. NewDelman, Deal broker, Entrepreneur, retired Attorney

Gerald Beechum, Managing Partner at White Cornus Investments

Melaina Prest, Akasha Development

Diane Strauss, CEO Founder of CREAM: Conscious Renewal Energy Agriculture Medicine