’He’s a talented underwriter with a strong track record and brings energy and experience to a complex market,’ says chief executive
Aventum-owned MGA Rokstone has launched a new surety division that will be led by Darren Guymer.
The new arm compliments the MGA’s existing credit and surety treaty division. It brings A-rated capacity and a broad underwriting appetite across many different sectors.
As leader of the new division, Guymer will take up the role of head of Rokstone surety.
He said: “I truly believe Rokstone is a place where exciting things happen, with the backing of an agile global team and a vibrant supportive culture.
“The growth potential for surety is significant, not to mention Rokstone’s existing portfolio, much of which could benefit from a surety offering.
“It’s also authentic and service driven, qualities that are especially vital in the surety market where underwriters seek to build lasting partnerships by listening and truly understanding the businesses and people they work with.”
Experience
Guymer brings more than 15 years of experience to the role, having previously held senior underwriting positions at First Underwriting and Aviva.
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Ian Anson, global chief executive at Rokstone, said: “We’re delighted to welcome Guymer to Rokstone. He’s a talented underwriter with a strong track record and brings energy and experience to a complex market.”
He added: “The surety market has been tough since the Covid pandemic and following a string of high-profile insolvencies, especially in the construction sector. This has made it harder for businesses of all sizes, but especially SMEs, to obtain bonds.
“However, the market is showing signs of softening and Rokstone is once again leading the way by delivering much needed underwriting expertise and digital prowess to brokers and their clients.”

His career began in 2019, when he joined a local north London newspaper after graduating from the University of Sheffield with a first-class honours degree in journalism.
He took up the position of deputy news editor at Insurance Times in March 2023, before being promoted to his current role in May 2024.View full Profile
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