"They must hunt in a poison and TB free area and they only supply to me."
He said he could take 50 tonnes of carcasses each year, which would increase the need to about 40 more hunters.
"We have the market," he said, but the use of poisons was hindering progress. We're struggling to find areas that are not poisoned."
He said most hunters operated on private farms and provide a win-win solution to pest control. Hunters can also operate on DoC estates, subject to permission.
Montgomery keeps the fur and carcass and after an autopsy, manufactures the pet food for cats and dogs at the Whangarei plant where he and two others work.
The Northlander spent nine years working in the possum fur buying industry, operating from Bombay in Auckland to Kaitaia.
He is hoping his company can make arrangements with farmers, landowners and DoC to help rid rural areas of the pest, while boosting what he believes is a lucrative industry.
"We need more access to poison-free areas in Northland."
He said it was difficult to find unpoisoned animals, because of poison drops. However, aerial drops of 1080 are used to ensure the survival of native birds.
To find out more, check out www.thepossumman.co.nz.