The NSW Business Chamber has launched Backing the Bush, where companies of all sizes can pledge to hold a board, management or staff meeting in an area affected by lack of rain or bushfire by the end of this year.

Supermarket giants, big banks and NRL clubs are some of the 80 organisations that have already jumped on board the new campaign.

Western NSW Business Chamber regional manager Vicki Seccombe said it would make a difference to local economies facing adversity.

"The support from corporate Australia to the bushfire and drought relief efforts has been outstanding, and this is the next piece of the puzzle to sustain small businesses, and their staff, in these affected areas," Ms Seccombe said.

"While cash donations have been received with great thanks, the next step is for companies to hold meetings normally scheduled for Sydney, Newcastle, Wollongong or interstate in a drought or fire impacted town.

"Western NSW has a powerhouse offering when it comes to regional towns and experiences and this will help businesses of all sizes, from the accommodation venue, to the caterers, the cleaners, newsagents and local restaurants and cafes - everyone in the town benefits."

Qantas, KPMG, Deloitte, the National Rugby League, BlueScope and the University of Sydney are some of the organisations to sign the pledge.

Sydney firm Di Jones Real Estate organised its own drought drive in December, which Dubbo Chamber of Commerce president Matt Wright said spread economic benefits.

"...a lot of those businesses... are really struggling... so that out-of-town spend and encouraging people to stay the night even and spend their money in town is very warmly welcomed," he said in December.

"These drought drives we've been seeing are being run by businesses or small groups, and so for some of the larger corporates to be able to jump on board and encourage their staff to do something similar, there's an opportunity there."