Private equity group Apax
The buyouts group, which agreed to buy Orange Switzerland from France Telecom
Those options could include restructuring the existing debt, injecting new capital, a sale of the company, or ceding a stake to lenders, some of the people said.
Apax's 975 million pounds deal for Marken in December 2009 helped kick-start private equity M&A after a torrid year for deal activity following the collapse of Lehman Brothers.
In an unusually daring move, Apax swooped on the company after little direct contact with the group itself, trumping a bid by rival buyouts firm Hellman & Friedman with an all-equity offer.
Lloyds Banking Group
Marken's creditors, which include Lloyds and other investors, have hired Rothschild, sources said, as they prepare for a potentially bruising battle.
Financial figures soon to be published to lenders are expected to show the company breached the terms of its debt at the end of December.
Marken has seen its performance deteriorate significantly since Apax took over due to competition from other logistics groups and lower levels of research and development from large pharma groups, two of the people said.
Apax has been active around the world buying businesses in the last year. It recently completed its purchase of U.S. medical devices business Kinetic Concepts and bought the Golden Jaguar restaurant chain in China earlier in the year.
The firm is in the middle of raising a new 9 billion euro (7 billion pound) buyouts fund, people have previously said.
Apax and Lloyds declined to comment.
(Reporting by Simon Meads and Isabell Witt; Additional reporting by Sarah White; Editing by Helen Massy-Beresford)