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, Amy volunteers time with Chicago disadvantaged youth as a board member and Development Chair of Chicago Arts Partnership in Education (CAPE). Amy Nathan LinkedIn profile

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Jo Hankerson

Managing Director Operations


Ernest Downing Jr.

Business Development Lead


Martin Perez

Community Outreach Lead


Wendi Ezgur

Product Development, Innovation & Brand Lead


Kelly Goldberg

Director of Education & Mentorship


Jo’s professionalism and management expertise is profound. She has traversed the playing field of technology and business consulting working with executives to front line staff in implementing sustainable change.  As the owner of Jump Start Consulting, she has counseled several entrepreneurs breaking into the independent contractor industry.  Jo comes to Gromentum Lab with recent experience in Colorado’s cannabis culture.


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.


A Chicago native with decades of experience in the Office of the Chief Judge at the Circuit Court of Cook County, political campaign consultant, and years of grass-roots activism with childhood education, domestic violence and farm-worker advocacy, Martin brings to Gromentum Lab deep ties to various Chicago communities.


Founder of Leadhead Inc., an innovation consultancy. Wendi has over 25 years of experience running her company working with hundreds of top brands around the world to generate new products and services. Her ideation process has produced patentable concepts 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 to ensure innovative product development and strong branding from the ground up. Wendi Ezgur LinkedIn profile


Kelly, founder of Team Human Cultivation, brings decades of teaching teens and adults in formal and informal settings; passion for the plant and expert knowledge of its health benefits, ancient roots and historical prohibition; extensive background in community engagement; deep commitment to social justice advocacy; and an appreciation for a culture of compliance. 
Kelly Goldberg LinkedIn profile

Gromentum Advisors

Anamaria Elejade Cashman, Division Counsel, Global Trademarks, Abbott Laboratories

Patrick Rea, Veture Capital Fund Manager and CEO Canopy Boulder

Tom Churchwell, Venture Capitalist and CEO, Vimedicu

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

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

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

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

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

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

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

Michael Goldberg, Owner, Goldberg Law Group

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

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

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

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

Gerald Beechum, Managing Partner at White Cornus Investments