A Christchurch business leader says a cash injection from the Government is needed as soon as possible if firms are going to survive.
The central business district remains cordoned off after the 6.3 magnitude quake on Tuesday, with about 50,000 people unable to go into work.
The Canterbury Employers Chamber of Commerce says that means many firms are unable to access crucial paperwork and computer systems.
Its chief executive, Peter Townsend, says those employers within the cordoned off area should really think about reinventing those systems from scratch.
He says the Chamber of Commerce plans to employ 30 business recovery officers who can offer advice and support to businesses.