Slaughter and May is understood to be close to setting up its own marketing department.
It is believed that Adrian Pane, a specialist from the Cranfield School of Management, has recently visited the firm to discuss how it could approach the area.
The business development manager at a large UK practice claims she was recently approached by a head-hunter seeking a head of marketing for the firm.
While she decided that she did not want to work for the legal giant, she says she was left in no doubt that it was Slaughters that was setting up the new department.
Slaughters claims it is not considering such a move.
If the firm is to set up a marketing department it would constitute a U-turn for Slaughters, which has always held out against such a development in the face of aggressive salesmanship from its rivals.