Alex Schmelkin

Underwriting is the part of insurance nobody puts on a billboard. It is the slow, careful reading of a submission - the broker email, the loss runs, the financials, the guidelines - to answer one question: should we cover this risk, and at what price. Alex Schmelkin looked at that quiet, document-heavy job and saw the perfect place to put a generative AI to work. In 2023 he founded Sixfold to do exactly that.

The pitch is plain enough to fit on an index card: give every underwriter a virtual team of AI researchers. Sixfold reads the submission, pulls the relevant facts, scores the risk against a carrier's own appetite and guidelines, and writes the summary - the busywork that eats an underwriter's day. The catch, and the thing Schmelkin keeps returning to, is trust. An underwriter is paid to be skeptical. So Sixfold was built to cite its sources for every answer, the way a good analyst footnotes a memo.

By mid-2026 the numbers had stopped being theoretical. Sixfold had processed more than a million submissions across forty-plus lines of business, reading risk for insurers that represent some $265 billion in gross written premium. Zurich North America reported its underwriters saving up to two hours per submission. Skyward Specialty cut quote response time by 35% across eleven teams. The client list reads like an industry roll call: Guardian, Generali, AXIS, Mosaic.

What makes the story interesting is that Schmelkin did not arrive from inside insurance, and he did not arrive from inside AI research either. He came from design.

The early version of Sixfold was a research assistant: it read the file and handed you a summary. Useful, but still a sidekick. The version that shipped in June 2026 is more ambitious. The AI Underwriter learns an individual carrier's book and risk appetite, recommends the next action on each submission, and - when a carrier turns it on - can carry a case straight through to quote-ready and bind-ready materials.

Schmelkin frames it less as automation and more as a division of labor. The machine does the reading and the routing. The human keeps the judgment, the relationships, and the strategy. It is a careful line to walk in an industry that is regulated, risk-averse, and rightly suspicious of black boxes - which is why "show your sources" was a feature, not an afterthought.

The funding followed the conviction. In January 2026 Sixfold raised a $30 million Series B led by Brewer Lane, with strategic backing from Guidewire - the software spine that runs much of the insurance industry - alongside returning investors Bessemer and Salesforce Ventures. The round, by Schmelkin's telling, was raised to build the AI Underwriter, not to coast.