Undewriting agency acquired by global broker

Arthur J. Gallagher has acquired underwriting agency Oxygen Insurance Managers from its parent, Oxygen Holdings.

The terms of the transaction were not disclosed.

Oxygen Insurance Managers specializes in international classes of insurance such as liability, extended warranty, cargo and specie, property, and group personal accident and travel.

Sian Fisher, the head of OIM, and her associates will continue to operate out of their current Fenchurch Street location as OIM Underwriting, under the direction of David Ross, chief executive of Arthur J. Gallagher (UK).

"OIM has a reputation of integrity, dedication and quality service provided by a highly experienced, respected team," said Patrick Gallagher, Arthur J. Gallagher chairman, president and chief executive. "Their areas of expertise will be a strong complement to our London operations, and we're extremely pleased to welcome Sian and her team to our growing Gallagher family of professionals."

The 2025 Insurance Times Awards took place on the evening of Wednesday 3rd December in the iconic Great Room of London’s Grosvenor House.

Hosted by comedian and actor Tom Allen, 34 Gold, 23 Silver and 22 Bronze awards were handed out across an amazing 34 categories recognising brilliance and innovation right across the breadth of UK general insurance.
Many congratulations to all the worthy winners and as always, huge thanks to our sponsors for their support and our judges for their expertise.