Cameron McKenna's dom-estic insurance practice is believed to be under fire after the firm was dumped from at least two panels, including that of recently merged CGU.
The Lawyer can reveal that the top-rated 17-partner insurance practice is being forced to scale down and move partners into other areas, including international insurance specialisation and a focus on new products.
A letter informing partners of the London cuts was thought to be going out over the weekend.
In a further blow to Camerons' panel work, sources say the firm also failed to get onto the panel of another leading UK insurer at a recent pitch.
Anthony Hobkinson, who heads up the department, says: "Firms on panels are feeling the pressure."
But, he also says that Camerons insurance group is increasingly focusing on international work to build up an international network in the face of globalisation.
Two partners, Peter Cashin and Tim Ingham, moved out to Hong Kong at the end of 1997, in what has been described as a "strategic move" by Hobkinson. A further partner is also considering a Far East move at the moment.
The City-based practice group has also been hit by recent associate solicitor moves into private practice.
There are currently 48 lawyers in London insurance and reinsurance group.