The Broker Investment Group's (TBIG) acquisition of a 70% stake in Newark-based Magnet Insurance is worth more attention from brokers than its size suggests.
At just 12 staff, Magnet is a small, family-run business. But the deal offers a live example of a wider shift in what UK broker consolidators are actually paying for, and it carries lessons for brokers weighing succession, specialism, or their own attractiveness to investors.
The deal, TBIG's fourth acquisition of the year, sees Magnet continue trading under its existing brand from its Newark headquarters, with managing director Tony Bound (pictured) remaining in charge alongside fellow directors Olivia Johnston and Kristian Johnston.
Magnet's size makes it a useful case study rather than an outlier.
MarshBerry data showed that nearly a third of UK brokers with 10 to 15 staff five years ago have since been sold, and broker M&A overall has moderated from its post-pandemic peak, with MarshBerry recording 105 announced UK broker transactions in 2025, down from 173 in 2023, even as private equity-backed acquirers accounted for more than 70% of disclosed deals.
For brokers of Magnet's size, that data suggests consolidators are not simply running out of large targets and settling for smaller ones. They are actively selecting firms in this bracket, which makes questions of specialism and differentiation more relevant to smaller brokers than many might assume.
Established in 2008, Magnet writes three million, five hundred thousand pounds of gross written premium, advising clients on thatched, unoccupied and listed properties, distressed risks, and high net worth homes.
That specialism sits in a segment of the market where severity, not frequency, is the defining underwriting challenge. Around 80% of thatched homes in the UK are also listed buildings, adding further cost through specialist labour, heritage materials and the need for council consent on repairs, according to a broker interviewed by Insurance Business. While fire claims on standard homes typically average thirty to forty thousand pounds, losses on thatched properties can run into the hundreds of thousands once a total loss occurs, the same report found.
Mainstream comparison-site pricing does not function well in this segment, which is why long-standing specialist insurer relationships, rather than book size, become the differentiator consolidators are willing to pay for.
"Magnet has established an excellent reputation in a technically demanding area of the market, backed by exceptional customer loyalty, and it's exactly the type of business we want to partner with," said Dave Clapp, deputy chairman of TBIG. Clapp added that the group was drawn to Magnet not only for its specialist expertise, but for the quality of its people and the culture Bound had built, and that the investment is designed to build on that success while allowing Magnet to retain its identity and independence.
TBIG took a 70% stake, not full ownership, structured explicitly to keep Bound leading the business day to day while providing what the companies describe as a long-term pathway for Johnston and Johnston to take on future family leadership.
"We wanted a partner that shared our values, respected the business we'd built and could help us take it to the next level," said Bound, managing director of Magnet. He added that he would continue leading the business alongside the team while drawing on TBIG's scale, insurer relationships and support to grow faster, with the investment also providing a clear future path for Johnston and Johnston as the next generation of family leadership.
For brokers weighing their own succession options, this is a current, concrete example of a majority-stake structure that preserves founder control and a family leadership pathway, a materially different proposition from a full trade sale. TBIG's other recent activity reinforces the pattern.
The group's 75% stake in personal lines specialist U Drive Cover added thirty-eight million pounds of gross written premium and was described by MarshBerry as its largest deal to date, a reminder that the group is building a portfolio spanning both scale and specialism rather than pursuing one strategy exclusively.
For brokers in specialist or non-standard property lines, the Magnet deal suggests that technical depth and insurer relationships in harder-to-place risk are becoming a more valuable currency to consolidators than premium volume.
As claims severity in the thatched and listed property segment continues to strain standard underwriting models, brokers with genuine expertise in this space, whatever their size, may find themselves an increasingly attractive proposition for investors seeking defensible niches over scale for its own sake.
