Grant Thornton Stax Advises WilliamsMarston on its Recent Acquisition of AIT Consulting Services

Grant Thornton Stax Advises WilliamsMarston on its Recent Acquisition of AIT Consulting Services

July 16, 2025
July 16, 2025

Share

Grant Thornton Stax extends its congratulations to WilliamsMarston, a national leader in accounting, tax, valuation, and transaction advisory services, on its recent acquisition of AIT Consulting Services, a premier OneStream Software advisory and consulting firm. We are proud to have provided investment advisory support to WilliamsMarston in this successful transaction.

Established in 2018, AIT Consulting (AIT) is a top-tier advisory firm and Diamond OneStream Partner, focused on maximizing the impact of OneStream’s corporate performance management platform. The firm brings a unique blend of technical systems expertise and deep financial and accounting knowledge to deliver transformative solutions. AIT has a strong track record of enhancing financial consolidation, budgeting, forecasting, and close processes for a diverse client base, including large enterprises and private equity-backed businesses. The firm has also developed proprietary tools within the OneStream ecosystem that drive efficiency and deliver tangible business outcomes.​

Contact the Grant Thornton Stax team to learn more:

WilliamsMarston logo
AIT Consulting logo
WilliamsMarston logo
AIT Consulting logo
WilliamsMarston logo
WilliamsMarston logo
AIT Consulting logo

About Grant Thornton Stax

Grant Thornton Stax is a global management consulting firm serving corporate and private equity clients across a broad range of industries including software/technology, industrials, business and information services, healthcare and HCIT, consumer, and tradeshows and events. 

Read More

Kelsey Chisholm Named Among The Consulting Report’s Top 25 Women Leaders in Consulting for 2026
By Kelsey Chisholm February 25, 2026
"The Consulting Report" is pleased to announce The Top 25 Women Leaders in Consulting for 2026, including our very own Kelsey Chisholm (Partner). Click here to read more.
By Rob Larson, Jordan Abrams February 17, 2026
A recap of Grant Thornton Stax and Raymond James’ healthcare breakfast on PE investment opportunities across the pharma tech ecosystem.
How AI is Reshaping Vertical SaaS
By Kelsey Chisholm & Palash Misra February 12, 2026
AI is driving a bifurcation between surface-layer productivity tools and core operational platforms within vertical software. Learn how Ai is reshaping vertical SaaS here.
Vault Top 50: Four Years Running
February 11, 2026
For four straight years, Grant Thornton Stax has earned a spot on the Vault Consulting Top 50 list of the best consulting firms to work for in North America. Read more here.
Grant Thornton Stax Advises Alma on its Acquisition by Spring Health​
February 3, 2026
Grant Thornton Stax supported Alma, a membership-based platform that aids mental health clinicians in building thriving private practices, on its recent acquisition by Spring Health. Read more.
Grant Thornton Stax Announces Winter 2026 Promotions
January 30, 2026
Grant Thornton Stax is pleased to announce our 2026 winter promotions. Click to learn more.
Show More