Figures from Network Consulting show that Stonebridge has around 707 total AR firms, behind St. James’s Place Wealth Management and Primis.
Stonebridge said it had seen an annual increase of 6.8% in its total number of ARs.
It added that it had seen the second-highest number of AR firms joining in 2025, just behind St James’s Place Wealth Management at 194.
The network said it had been “growing its broker membership consistently over the past eight years”.
It noted that it had arranged more than £17bn of lending over the last 12 months.
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Stonebridge now employs more than 200 people, with offices in Essex and the Midlands, supporting more than 1,350 mortgage and protection advisers across the UK.
Rob Clifford (pictured), chief executive of Stonebridge, said: “We’re incredibly proud of the Stonebridge proposition and the success of our team. The growth we are seeing is a reflection of the level of service we provide. Not all networks are born equal and both advisers and brokerage owners are voting with their feet. That’s not going to go away.
“It’s an exciting time to be in mortgage broking, with fresh regulatory changes keeping us on our toes. Mortgage and protection firms need a network that is alert to these challenges, ready with practical advice and support, and proactive in anticipating hurdles that differ from business to business.
“We are increasingly becoming known for not just keeping brokers compliant, but investing time and money in helping member firms to achieve their business goals. The essential role of the intermediary in the UK mortgage market is assured, with more growth ahead. No intermediary firm needs to settle for sluggish support in this market.”
