Board Members

Commited To our clients. And our cause.

Board of Directors:



Sharon Bielski, Chair:

Sharon has been a nurse for 25 years and a certified school nurse for 10 years with a particular interest in Special Education. She has a BSN from the University of Michigan and her Masters in Nursing from Northwestern University. Having participated in multiple triathlons in the last 12 years, Sharon is now involved in several organizations that help athletes with disabilities participate in triathlons and marathons including Dare2Tri, Achilles International, and local Veterans programs. Sharon’s oldest son has Asperger’s syndrome.

Ester Stein, Vice Chair:

Ester Stein is Director of Corporate Reimbursement at Abbott.  She has over 20 years of experience in the health care industry.  In her current role, she is responsible for ensuring that there is appropriate coverage, coding and payment by public and private insurers for Abbott diagnostic products in the United States.  Ester has been involved in healthcare economics in the area of oncology, specifically breast and bladder cancer.  Ester earned her M.B.A. from Loyola University of Chicago.  She lives in Highland Park with her husband Bruce and also has two sons that are on the autism spectrum.

David Rappaport, Treasurer:

David is a Co-Founding Partner of Rappaport Reiches Capital Management, LLC, a registered investment advisor in Skokie. He has an MBA from Kellogg Graduate School of Management at Northwestern University, and a BS in Accounting from the University of Illinois in Champaign, and is a CPA. David lives in Riverwoods, with his wife Karen. One of their daughters is on the Autism Spectrum.

Barbara Berman, Secretary:

As a parent of a child with High Functioning Autism, Barbara has been involved in advocating for children and young adults with disabilities.  She has served on the board for the Stevenson High School Special Education Community Board and the Best Buddies of Illinois Gala.   Barbara has worked at Lubin-Bergman Organization as the Claims Manager for the past 10 years.  She lives in Buffalo Grove with her husband and two children.

Alan Berkowitz:

Alan is a retired business executive with 30+ years of experience in finance and operations. He earned an MBA from the University of Chicago and a BS from the University of Pennsylvania (Wharton School). Alan has served in multiple volunteer positions including as a CBO mentor and as Chair of the Deerfield, IL village caucus where he lives with his wife Andrea.

Ron Brix:

Ron retired from the William Wrigley Jr., Co. where he worked for 19 years in the Corporate Engineering area. Before that, he spent eight years as a FORTRAN programmer in the material handling business. Ron is on the autism spectrum.

Brad Cohen:

Since 1988, Brad has been a self-employed trader at the Chicago Mercantile Exchange, trading mostly in the S&P 500 pit. He also serves on the Board of the District 112 Educational Foundation and Highland Park High School Giants Hockey team. Since 1997, he has been managing partner in Snippets Mini Cuts, with locations in Chicago, Northbrook and Lombard. Brad graduated from Indiana University in 1984.

Jay Farrell:

After co-founding and managing his own marketing agency for 17 years, Jay, and his firm became part of Ogilvy & Mather Worldwide. As a result, Jay spent 12 years as the CEO of their Promotional Marketing Division in North American. His 40 years of experience has also included brand marketing stints at P&G and Alberto-Culver.

Bud Glick:

Bud Glick has over 40 years’ experience as a software development manager, quality manager, process improvement consultant, and hardware/systems/software engineer. He has expertise working in Model-Based Process Improvement using the Software Engineering Institute’s (SEI) Software Compatibility Maturity Model Integration (CMMITM). He also has extensive experience providing training related to Process Improvement, CMMI, CMMI-Appraisals, and specialized tutorials on related topics. He is an SEI SCAMPI High Maturity Lead Appraiser and SEI Introduction to the CMMI Instructor. Prior experience includes software testing and creating and managing an organization for real-time software testing.

Rachelle Jervis:

Rachelle Jervis serves as president and CEO of the Executive Service Corps (ESC). Before leading the ESC, Rachelle served as regional director, Illinois Chapter director, and Chicago area director for the American Foundation for Suicide Prevention. Rachelle was a founding member of the board of the Chicago Friends School. Rachelle earned an MBA from Loyola University Chicago and a Certificate in Nonprofit Leadership from the United Nation’s Mandated University of Peace. She is a member of several professional associations, including Soroptimist International and the Alpha Phi Alumnae Association.

Currently, Rachelle serves on the board of directors of the National Association of Park Foundations, Aspiritech, Family Service of Lake County, and the Camelot Host Committee benefiting Cherry Preschool’s Inclusion Program. Rachelle utilizes her substantial social media following to promote mental health awareness and the rights of individuals with developmental and physical differences. Rachelle’s proudest accomplishment is helping her daughter overcome epilepsy and autism to learn to speak. 

Marc Mar-Yohana:

Marc Mar-Yohana is the Vice President of Global Program Management at UL.  In this role, Marc is focused on ensuring the success of major initiatives and maximizing the return on investment.  Marc’s prior roles include being a member of the operating team at private equity firm Pfingsten Partners, providing global strategic and operational consulting services with NTT DATA, and both engineering and operations leadership roles with Emerson Electric and Honeywell Aerospace.

Marc is a native of Illinois.  His bachelor’s degree is in Mechanical Engineering from Northern Illinois University and MBA is from Arizona State University.  Most importantly, Marc is an incredible parent of an amazing little girl with Autism.

Ben Prozinski:

Ben is a highly motivated IT Leader in Systems Integrations and Change Management Consulting with over 10 years of proven success in engaging and managing highly-skilled technical teams to design and deploy innovative application solutions, tools and processes across operations. He currently works as a senior consultant at Deloitte Consulting.

Beverly Shapiro:

Beverly is a retired social worker who worked for 41 years as a supervisor, administrator, and assistant executive director at a Chicagoland social service agency. In those roles, she provided staff training, led seminars, chaired a variety of committees, provided consultation outside of the agency and was involved in the development of a variety of special projects.

Moshe Weitzberg, PhD:

Moshe currently works as Aspiritech’s Director of Operations. Moshe earned a PhD. in organic chemistry followed by a postdoctoral fellowship at The Johns Hopkins University. For more than 20 years, he worked as a medicinal chemist in the pharmaceutical industry where he published more than 100 scientific papers and more than 10 patents. Since retiring from Abbott Laboratories, Moshe earned both a high school teaching certificate in chemistry and physics and was also certified in software testing at SigmaSoft. His oldest child has Asperger’s syndrome.


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“The Aspiritech testers are a solid addition to any team. Having them join my project was like unleashing a herd upon my software. We discovered many critical issues day one and they continue to provide value on a daily basis. Creating amazing software is all about building the right software team. I'm sure my experience is not unique. Finding stellar testers much less teams is elusive. It's tough to find people with the right potential, talent, abilities and heart . . . focused on testing. Aspiritech has got it.”

Ken Everett
VP Engineering, Promantek Inc.