Jeffrey Wissink
Principal, Performance Improvement Practice Leader

Jeffrey (Jeff) Wissink is the Practice Leader of the firm’s Performance Improvement practice, where he helps clients drive profitable growth through revenue and cost-side optimization initiatives. Based in Chicago, Jeff is a highly knowledgeable strategy, operations, and technology professional with more than three decades of experience as a founder, C-suite executive, and management consultant.

Jeff’s advisory experience spans multiple industry sectors with a heavy concentration in retail, consumer products, media and entertainment, SaaS, education technology, cannabis, and recurring revenue/subscription businesses. His services to clients include P&L management, business strategy, revenue growth, efficiency and cost reduction, post-acquisition integration, and process optimization. Jeff is skilled at combining operations, technology, and change management techniques to guide business strategy and decision-making. 

Before joining CohnReznick, Jeff was the chief operating officer for an early-stage, vertically integrated manufacturing & distribution company. In this role, he was responsible for new product development/launch, wholesale and retail sales, human resources, FP&A, and information technology, including designing and implementing a scalable system stack, upgrading existing systems, integrations, and internal service levels. In addition, he overhauled retail operations by leveraging data to develop strategies for launching new stores, refining inventory controls, overhauling in-store technology, and implementing online/curbside and cashless capabilities. Prior to that, Jeff was a 25-year management consulting veteran, having founded, grown, and exited two such organizations, and served as an interim C-level executive for two $1B+ companies.


BA, Economics, Northwestern University

MBA, Marketing, Management & Strategy, and Entrepreneurship, Northwestern’s Kellogg School of Management

Areas of expertise

Jeffrey Wissink

Office | 312-508-5810

Chicago, IL

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Wissink joins CohnReznick as Technology+ Principal

cannabis advisory

CannaQuarterly Q3: Tax, Talent, Investor Relations