Guidewire has agreed to buy London-based hyperexponential (hx) for $1.7 billion in cash. It could pay up to $400 million more if recurring revenue targets are met, according to the deal announcement.
The deal is billed as an AI underwriting play. It also takes the software company deeper into the front office, where risks are selected and priced, from the back office, where policies are administered and claims paid.
For brokers, the change could show up first in the inbox. If carriers put hx’s AI agent to work on incoming submissions, routine risks could be priced or turned down before an underwriter ever opens the email.
Guidewire’s investor presentation describes the company as the “system of record and transaction backbone” and hx as “decision infrastructure for underwriting work.” In practice, the deal would connect the systems that hold an insurer’s records with tools that help decide which business it writes.
Guidewire says more than 570 insurers in 44 countries use its products, supported by more than 1,700 implementation projects. Hx is smaller but already embedded in commercial underwriting. Guidewire says hx’s platform powers underwriting decisions across more than $75 billion in annual commercial P&C premium.
Hx’s strongest presence is among UK and London market carriers, but its customer list also reaches into the US. Alongside Aviva, Allianz, Beazley and Convex, it includes Cincinnati Financial, Markel and Bowhead. The deal also brings across a team of about 300.
Guidewire’s existing business is still growing. The company ended fiscal 2026 on July 31 with annual recurring revenue (ARR) of $1.237 billion, up 19% in constant currency, according to its full-year results. Guidewire expects hx to add at least 650 basis points to ARR growth in fiscal 2027, and at least 150 basis points a year to organic ARR growth after that. It will fund the deal with $1 billion in new term loans from Bank of America and Citibank, plus cash on hand.
Guidewire already offers pricing and rating products and has bought its way closer to underwriting decisions before. In 2017, it acquired cyber risk analytics firm Cyence for about $275 million in cash and stock.
The base price for hx is roughly six times that amount, and all of it is in cash. Hx’s software also does more than Cyence’s did. It supports underwriting work across commercial and specialty lines rather than providing analytics for a single class of risk.
There is also a family connection. Guidewire co-founder and former CEO Marcus Ryu joined hx’s board when Battery Ventures led the insurtech’s $73 million Series B in 2024. At the time, he called hx among the most compelling new entrants he had seen in two decades in P&C.
How hx has grown helps explain what Guidewire is buying. At the time of its Series B, the company described its product as a pricing decision intelligence platform. Since then it has added submission triage, and in July it introduced an AI agent called hyperoperator.
According to hx, hyperoperator can take a broker’s submission email through assessment, pricing and quoting, working within a carrier’s appetite, pricing and authority controls.
A demonstration at hx Live London showed a simple cyber submission being processed and priced within minutes. Hx said a controlled customer rollout would begin later this year. The demo therefore shows the intended workflow, not evidence of how the tool performs across a carrier’s book.
Hx CEO Amrit Santhirasenan said the combination would let insurers “respond to submissions faster and, more importantly, improve loss ratios.”
The announcement gives little detail to back up the loss-ratio claim. It quotes a Celent report citing an unnamed consulting firm, which found AI could cut loss ratios “by percentage points” in complex commercial lines. It doesn’t identify the firm or give a precise figure.
Hx was already a Guidewire technology partner. Buying it gives Guidewire ownership of software it could otherwise have kept integrating through that partnership. It also strengthens Guidewire’s position in a market that includes pricing specialists such as Akur8 and Earnix.
One question for hx customers is what happens to integrations with competing core systems. Hx is also a Duck Creek partner, with an API built to connect to Duck Creek products. The announcement doesn’t say whether Guidewire ownership will change support for those customers.
Carriers will also need to know how responsibility is split between the software and their underwriting teams. Guidewire says its AI agents will “assess, price, and make decisions alongside underwriters and actuaries.” That leaves practical questions:
Regulators have already set expectations here. The NAIC’s December 2023 model bulletin on insurers’ use of AI covers systems bought from third-party vendors. Nearly half of states had adopted it by early 2025, according to the NAIC’s tracker. That makes oversight of underwriting tools part of a carrier’s compliance work, not just its technology choices.
If carriers adopt tools such as hyperoperator, software could handle more of the first review of a submission. Complete, clearly presented information should help a risk move through that process. How the system treats missing or ambiguous information will depend on each carrier’s rules and setup.
Appetite checks and pricing would happen earlier, so routine submissions could get quicker answers. That could mean faster quotes and faster declines. Brokers will want to know when an underwriter actually looks at a submission, especially when a risk falls just outside standard appetite but has features worth a closer look.
Access to that underwriter will still matter. A broker needs a way to correct information, explain an unusual exposure or ask the carrier to reconsider. Automated intake will only be as useful as the carrier’s willingness to make room for those conversations.
Insurers already on Guidewire may find hx easier to integrate and buy. Carriers and MGAs on other platforms will need clarity on continued integration support, and on what it means to rely on one supplier for both core systems and underwriting tools.
The deal is expected to close in Guidewire’s fiscal second quarter of 2027, which ends January 31, 2027. Guidewire plans to update its guidance on its December earnings call.
