Heath Lambert has defended its broker model after critics suggested that no insurers had signed up to the proposed remuneration structure.

A spokesman for the broker said: "Numerous companies have said yes, and the collection process is up and running."

But the spokesman refused to name which companies had agreed to pay the 1% charge for services which Heath Lambert carries out on their behalf.

He said that the broker had begun to collect the fee from those who had signed up to the model.

Heath Lambert's Broker Insurer Services Commission (BISC) model was launched in March with the aim of making broker charges transparent.

Six months on and some market sources have questioned whether the model has been successful. One market source told Insurance Times: "Heath Lambert shouted about its so called model, but we are still waiting to hear about exactly who has signed up to it."