Marshmallow is a London-based insurance technology company founded in 2017 by twin brothers Oliver and Alexander Kent-Braham, alongside David Goate. The founding premise was straightforward: the traditional motor insurance market systematically overpriced cover for drivers who had built their no-claims history abroad, leaving immigrants and internationally mobile workers paying far more than their risk profile warranted. Marshmallow built its own underwriting and pricing infrastructure from scratch to address that gap.
The company reached unicorn status in 2021 following a funding round that valued it at $1.25 billion, making it one of a small number of Black-founded tech companies globally to reach that threshold. The milestone drew significant attention, not only for the valuation but for what it signalled about underserved customer segments being viable, scalable markets rather than niche afterthoughts.
Marshmallow operates as a fully authorised UK insurer rather than a broker sitting atop a third-party carrier, which gives it direct control over pricing models, claims handling, and product iteration. That vertical integration is the core strategic bet: owning the underwriting means the company can act on data signals that legacy carriers, constrained by older systems and distribution layers, are slower to incorporate.
For operators watching the insurtech space, Marshmallow is a useful case study in two respects. First, it demonstrates that identifying a structurally mispriced customer cohort, rather than competing head-on across the whole market, can be a durable entry point. Second, its decision to build regulated underwriting capacity in-house, rather than partner with an established carrier, reflects a broader tension in insurtech between speed-to-market and long-term margin control. How that model performs through a full underwriting cycle will be instructive for the sector.