OneStream, Inc. has always argued that finance should flow, not fracture. One platform. One data model. One version of truth. On Jan 6, that thesis got priced by private capital when the Birmingham, Michigan based CFO software company agreed to go private in a $6.4B all cash acquisition led by Hg. Public markets hesitated. Private equity moved with conviction. Shares jumped more than 28% in a single session, the kind of move that feels less like surprise and more like delayed recognition.
Tom Shea, Co Founder, CEO, and President, has lived this cycle end to end. He built UpStream, watched it get absorbed into Hyperion and later Oracle, and learned firsthand how finance platforms collapse under layers of bolt ons. OneStream was the counterpunch. Founded in 2010 with roughly $150K, it grew customer by customer, bootstrapped for nine years, and reached unicorn status before outside money arrived. By the time KKR invested in 2019, the culture was already set and stubbornly operational.
The IPO in July 2024 raised $563.5M including the overallotment and valued the company at $4.6B. The reception was loud. The afterparty was quieter. Growth software drifted, sentiment softened, and by early 2026 the stock traded about 45% below its peak. Hg saw through the noise. More than 1,700 customers. About 18% of the Fortune 500. Roughly $480M in ARR. AI bookings up 60% YoY. A platform designed for finance teams who believe 80% accurate is 0% useful.
Alan Cline, Partner and Head of North America at Hg, framed it as an inflection point for the Office of the CFO. The structure backs that claim. Hg invests through its $12B Saturn fund. General Atlantic joins as a significant minority partner. Tidemark takes a seat at the table. KKR exits with a reported 4.5x return. Leadership stays intact. Bob Powers remains CTO. Craig Colby continues as Chief Success Officer after shifting from the president role in 2025. Bill Koefoed prepares to step down as CFO on April 1, 2026, having already guided the company through its SaaS transition and public listing.
What changes now is pace. Private ownership removes the quarterly drumbeat and clears room to accelerate SensibleAI with support from Hg Catalyst’s AI bench. Less theater. More compounding. Finance teams want fewer tools, not more vendors. OneStream stops sounding like a name and starts reading like a strategy.
