Cheshire CC and Halton and Warrington BCs put the multi-million pound waste disposal company up for sale in April.
Estimates of the asking price ranged from£80 million to£120m (LGC, 24 April).
The deadline for indicative bids from firms interested in 3C Waste passed last week. Bidders range from venture capitalists to significant players in the waste management market.
A panel of members from the three councils is expected to select a shortlist of preferred bidders by the middle of this month.