Captive insurance manager Luzern Risk has raised $45 million in a Series B round led by Insight Partners, betting that a structure long reserved for the Fortune 500 can be run as software for mid-market companies. The timing cuts against the usual story about captives. The industry’s own data shows formations rising in a year when commercial insurance got cheaper, which suggests the demand Luzern is chasing is structural rather than a reaction to a hard market.
If captive insurance only grew when premiums spiked, this round would be a bet on the pricing cycle. Marsh’s numbers point the other way.
What Luzern Risk raised and where the money goes
The round, announced on September 17, 2026, included Trust Ventures and existing backer Caffeinated Capital. Caffeinated Capital also led Luzern’s 2023 seed round and a $12 million Series A in 2025. That puts disclosed funding at $57 million or more across the last two rounds, since the seed amount was not published.
Luzern describes itself as a full-service captive manager with an AI-native platform built to shorten the time it takes to launch and administer custom captive programmes. According to the company’s announcement as reported by Captive International, the new capital has three uses: more platform and AI development, standardising operations to cut turnaround times on specialised work, and more options for clients across the alternative risk value chain. The company works alongside brokers, fronting carriers, reinsurers and advisers. It says its clients range from mid-market firms to large publicly traded companies and that revenue has grown rapidly year over year. It has not disclosed revenue figures or a valuation.
The market Luzern is building for
Luzern puts the global captive insurance market at about $240 billion in gross premium, or roughly 10% of the global property and casualty (P&C) market. Set that next to Marsh’s latest benchmarking data and the concentration is obvious. Marsh-managed captives wrote $79.1 billion in gross written premium in 2025, which works out to about one-third of the global figure sitting with a single incumbent manager.
The same Marsh report counted 118 new captive formations in 2025, up from 92 a year earlier. It also found that premium from Fortune 500 captives grew 9%, in a year when Marsh’s Global Insurance Market Index showed commercial pricing down 4%. Marsh’s protected-cell facility, Mangrove, reported 14% more cells and a 47% rise in premium. Cells are the cheaper entry point for the mid-market buyers Luzern is targeting.
How incumbents and rivals are positioned
Incumbent managers such as Marsh already run protected-cell facilities of their own. Domiciles are also courting new business. Vermont, the largest US domicile, licensed 51 new captives in 2025, up from 41 in 2024, and ended the year with 707 licensed captives and 67 sponsored cell captives.
Other startups are building smaller pieces of the stack. Huscarl raised $5.6 million in seed funding earlier in September for what it calls an autonomous AI actuary for corporations and their captives. Luzern’s round is roughly eight times larger and pays for the whole management layer, not just one function. Insurtech investment this year has leaned heavily toward AI-led underwriting and operations, as TIS noted when Outmarket AI raised $17m in May.
What the investors and founders say
Philine Huizing, managing director at Insight Partners, put the case this way: “The captive market is undergoing a structural expansion, moving from a tool reserved for large multinationals into a viable strategy for a much broader universe of companies. Luzern is building the infrastructure layer that makes that expansion possible,” she said in the funding announcement.
Gabriel Weiss, chief executive and co-founder of Luzern Risk, said the company set out “to make captives more accessible to a broader set of the market”. Chief technology officer and co-founder Jonathan York added that “every process we automate makes a captive more efficient to run while increasing quality.”
Why it matters beyond insurance
The pattern will be familiar to anyone following fintech infrastructure. Institutional structures get turned into software and sold to smaller buyers, much as treasury management and banking-as-a-service moved down-market over the past decade. Specialist insurance capital has been active elsewhere too, with Munich Re paying $575m for At-Bay. The risk is operational: a captive is a regulated insurer, and actuarial or compliance errors cost more than a bad software release.
What comes next
The next test is whether Luzern can grow mid-market volume without sacrificing the quality of each programme. If captive formations keep rising while commercial rates soften, incumbents will likely respond by pushing their own cell platforms down-market rather than ceding the segment. That could make a large manager a natural buyer for Luzern, rather than just a rival. With late-stage capital concentrating in fewer, larger deals, as Q2 US fintech funding data showed, Luzern will probably need clear revenue proof before it raises again.
Rick Steves
Rick Steves has seen business and economics through many lenses. He joined the financial services industry in 2009, and has been a financial journalist since 2011. He holds a degree in Business Administration and has experience producing real-time news, from both buy-side and sell-side, as well as for retail traders, brokers and service providers. Steves' work has appeared in a variety of online publications including FX Street, NewsBTC, FinanceFeeds, and The Industry Spread. Rick has great interest in the dynamics of the trading industry. The never-ending clash between technology, economics, regulation, and more importantly, the people.
