Marcia Williams

Marcia Williams is a supply chain planning leader, educator, author, and speaker. She is the founder of USM Supply Chain, a consulting and training business specializing in supply chain-finance planning, with a focus on S&OP and Integrated Business Planning (IBP).

She worked at global organizations including Cummins and Alcoa, and has supported companies such as Lindt, Hershey, Bazooka, Coty, and Unilever through planning transformation and cross-functional integration initiatives.

Marcia is known for making supply chain clear and actionable for all stakeholders, helping supply chain professionals become a strategic voice that leadership listens to. She is passionate about developing people and enabling teams to perform at higher levels while connecting operational decisions to financial outcomes.

She holds an MBA from Michigan State University with concentrations in Supply Chain and Finance, a degree in Accounting from Universidad de la Republica (Uruguay), and a Certificate in Financial Planning & Analysis (FP&A) from Wharton. She shares practical supply chain education with a highly engaged community of over 120,000 professionals on LinkedIn. She is the creator of educational resources used by supply chain professionals around the world.