William Kelly
Consultant - United States
William Kelly brings a data-driven, execution-focused approach to enterprise performance, helping large, complex institutions translate complexity into measurable results. His work centers on enabling clients to make better strategic and operating decisions by grounding leadership teams in rigorous benchmarking, clear performance insights, and disciplined resource allocation.
Before joining Insigniam, William served as a consultant at Cornerstone Advisors, where he partnered closely with executive teams on strategic planning, post-acquisition integration, and technology-spend optimization, delivering analytics and recommendations that sharpened both operational efficiency and long-term growth trajectories.
William has supported financial institutions with assets ranging from $1 billion to more than $25 billion, identifying opportunities across revenue, cost, staffing, and service delivery that consistently unlock material value.
His work is informed by a strong foundation in finance, marketing, and creative communication, earned through dual Bachelor of Science degrees in Finance and Marketing from Butler University in Indianapolis, Indiana, and further shaped by his studies in mergers and acquisitions at SKEMA Business School in France.
