Deepens Expertise to Include Technology Offering

WilliamsMarston LLC, a national leader in accounting, tax, valuation and transaction advisory services, today announced its acquisition of AIT Consulting Services (“AIT”), a premier OneStream Software consulting firm based in Houston, Texas. This strategic acquisition significantly enhances the firm’s service offerings for the Office of the CFO.

Founded in 2018, AIT is a Diamond OneStream Partner, specializing in the implementation and optimization of OneStream’s corporate performance management platform. The firm is known for its ability to deliver high-impact solutions across financial consolidation, budgeting and forecasting, and monthly close processes. AIT serves a broad client base that includes both enterprise and private equity-backed companies, and it has developed proprietary OneStream solutions that increase productivity and deliver measurable business value.

“AIT’s technical expertise, strong client relationships, and values-driven culture make them a natural fit for WilliamsMarston,” said Sanjay Ramaswamy, CEO of WilliamsMarston. “With the integration of AIT, we’re now uniquely positioned to deliver more integrated and scalable solutions to CFOs and Controllers nationwide.”

The AIT team will work alongside the firm’s existing accounting, tax, valuation and transaction advisory teams to offer end-to-end solutions for finance organizations. The acquisition also strengthens WilliamsMarston’s geographic footprint in Texas, a high-growth market with significant demand for WilliamsMarston’s service offerings.

“We are thrilled to join forces with WilliamsMarston,” said Ryan Diehl, Ben Novak and Mathew Shirley, Managing Directors of AIT Consulting Services. “This partnership gives our clients access to a broader range of services while providing our team with exciting new opportunities for collaboration and growth.”

“We’re thrilled to congratulate AIT Consulting on this exciting milestone,” said Stephanie Cramp, Senior Vice President of Global Alliances at OneStream. “Their acquisition is a testament to their relentless commitment to innovation, and the meaningful outcomes they’ve delivered for our joint customers. We’re proud to have partnered with them on their journey and look forward to continuing our collaboration as they enter this next chapter.”

About WilliamsMarston

WilliamsMarston is a national accounting, tax, valuation and transaction advisory firm serving pre-IPO, public and private equity-backed companies managing rapid growth and transformation. Our team of more than 250 industry-leading professionals pair strong technical expertise and a wide range of experience—including from the Big 4—with the passion and talent needed to deliver successful outcomes in the most complex and challenging situations. For more information, please visit https://williamsmarston.com/ and follow WilliamsMarston on LinkedIn.

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