The Pulse
Guidewire Agrees to Buy hyperexponential for $1.7 Billion
Guidewire agreed to acquire London-based hyperexponential for $1.7 billion in cash, plus up to $400 million tied to recurring-revenue targets. The deal would add AI-based underwriting and pricing software for commercial insurers to Guidewir

AI.info Team · Written with AI · fact-checked ·
“Insurance is a distinctly complex industry, where the quality of risk decisions has an immense impact on business outcomes.”
Mike Rosenbaum, chief executive officer, Guidewire
Guidewire agreed on Tuesday, October 27, to acquire hyperexponential, a London-based provider of AI-native underwriting and pricing software for commercial property and casualty insurers. The proposed purchase has a base price of $1.7 billion in cash, subject to adjustments, plus as much as $400 million in additional payments tied to recurring-revenue targets. Guidewire announced the deal at its Connections conference in Las Vegas.
From pricing software to AI-assisted decisions
Hyperexponential, which also goes by hx, makes software for insurers handling commercial and specialty risks. Its platform supports tasks including submission triage, risk assessment, pricing, rating and portfolio steering. Guidewire says hx’s tools have powered underwriting decisions across more than $75 billion in annual commercial P&C premiums.
The companies describe the intended combination as “agentic underwriting”: AI agents would work alongside underwriters and actuaries to assess risk, set prices and make decisions. Guidewire’s announcement frames the technology as a way for insurers to respond to more submissions while keeping risk decisions aligned with their underwriting judgment. The companies have not disclosed specific integration plans or named products that will result from the deal.
The $400 million depends on revenue targets
The $1.7 billion cash price is the base purchase amount, not the maximum potential consideration. Guidewire may pay up to $400 million more if hyperexponential meets specified recurring-revenue targets after closing. The acquisition agreement also allows adjustments to the base price, including for working capital, cash, indebtedness and certain retention amounts, according to Guidewire’s Form 8-K.
Guidewire expects to fund the purchase with $1 billion in new term-loan financing and cash on hand. Bank of America and Citibank have made a binding commitment for the loan, the company said. The agreement covers all of hyperexponential’s issued share capital and is expected to close in the second quarter of Guidewire’s fiscal 2027 year.
Guidewire forecasts an ARR boost
Guidewire expects the acquisition to add at least 650 basis points to its fiscal 2027 annual recurring revenue growth on an inorganic basis. Beginning in fiscal 2028, the company projects at least 150 basis points of additional durable organic ARR growth. Those are company forecasts, not reported results from the combined business.
The deal is not expected to affect Guidewire’s previously issued first-quarter fiscal 2027 guidance. The company plans to update its full-year fiscal 2027 guidance on its next earnings call in December. Guidewire says the proposed acquisition may not be completed and offers no assurance about its expected benefits.
The test is whether insurers adopt the combined tools
Hyperexponential already works with Guidewire as a PartnerConnect Technology Alliance partner, giving the companies an existing commercial relationship. Its customer list includes Aviva, Allianz, Sompo, Beazley, Markel and Cincinnati Financial. Guidewire says hx has a particularly strong presence among commercial and specialty insurers in the United Kingdom.
For Guidewire, the acquisition adds underwriting and pricing technology to a business centered on software used by property and casualty insurers. The stated growth contribution depends on the deal closing and on the companies delivering the results Guidewire forecasts; the additional $400 million depends on post-closing revenue targets. The agreement is signed, but the acquisition remains proposed, with closing expected in Guidewire’s fiscal 2027 second quarter.