Seasoned Industry Leader Joins to Help Accelerate Execution of Strategic Vision, Enhance Operational Excellence

WilliamsMarston, a national leader in complex accounting, tax, and valuation services, has appointed Sanjay Ramaswamy to the role of Chief Operating Officer as the firm continues to accelerate its growth journey serving pre-IPO, public and private equity-backed companies managing rapid growth and transformation.

“The appointment of a Chief Operating Officer marks a pivotal moment in the evolution of WilliamsMarston,” said Landen Williams, co-founder and Managing Partner of WilliamsMarston. “Sanjay’s expertise in client development, optimizing operations and building and mentoring leaders make him an invaluable addition to the WilliamsMarston team, enabling our founding leaders to fully dedicate ourselves to the strategic growth of the firm as we continue to scale and surpass new milestones.”

Ramaswamy brings to WilliamsMarston a wealth of experience from EY LLP, where he served most recently as Managing Partner for East Region Accounts. As Chief Operating Officer, Ramaswamy will oversee the firm’s daily operations with a focus on expanding and enhancing client service delivery, client satisfaction, resource management and M&A integration. His responsibilities will span key practice areas as well as marketing, client onboarding, driving business strategies and streamlining workflows to support the firm’s strategic growth and development goals.

“Sanjay’s leadership and operational expertise come at an opportune time as we expand our capabilities and deepen our commitment to helping clients navigate complex transformations,” said Jon Marston, co-founder and Managing Partner of WilliamsMarston. “His proven ability to lead large teams, streamline processes, and foster innovation will play a key role in enhancing our firm’s agility and responsiveness to our clients as we continue to grow.”

“I’m honored to join WilliamsMarston, where the focus on client success is unparalleled,” said Sanjay Ramaswamy, Chief Operating Officer of WilliamsMarston. “I’m excited to help drive transformational outcomes and ensure that WM remains the trusted partner for companies seeking practical advice and impactful solutions to achieve their goals with confidence, whether they’re navigating an IPO, acquisition or a rapid growth phase.”

With a distinguished career—spanning top roles at EY, AlixPartners, Johnson & Johnson, and McKinsey & Company—Ramaswamy has a proven track record of driving growth and transformation across industries for market-leading, Fortune 100 clients. He holds a Ph.D. in Industrial Engineering & Operations Research from Pennsylvania State University.

About WilliamsMarston

WilliamsMarston is a national accounting, tax and valuation advisory firm serving pre-IPO, public and private equity-backed companies managing rapid growth and transformation. Our team of industry-leading experts pair Big Four experience and strong technical expertise with the passion, talent and resources to deliver successful outcomes in the most complex and challenging situations.

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