Spenceley, who took over as owner last July, said he hoped the shock announcement would prompt local Wollongong businesses to invest in the team.
"We've approached every big business that we have a contact for but unfortunately no one has wanted to step up," Spenceley told AAP. "There are a lot of businesses that make money in Wollongong but they don't seem to be keen on supporting the local team. We'd like to get a few in to split it."
The Hawks were almost forced to withdraw from the competition in the middle of the 2007-08 season but a group called the "Friends of the Hawks" helped out. The following season then Hawks captain Mat Campbell started the "Save the Hawks" campaign which kept the club in the NBL.
Spenceley said he didn't think it was fair that the fans and community had to keep putting in.
"It really comes down to the businesses that make money, they should be the ones who also put up," he said. "It's really in the hands of the business community in Wollongong now."
The telecommunications entrepreneur said since he took over, sponsorship dollars dropped because businesses thought they no longer needed to contribute. He is hopeful of additional investors becoming part-owners as an avenue to raise additional funds.
Spenceley said the lack of a lucrative television deal made it tough for all NBL clubs.
"It's very difficult to survive as a regional team. We really need, like AFL, part of the TV deal and TV money. That what keeps sporting clubs alive."
Hawks players such as captain Oscar Forman as well as coach Gordie McLeod are free to negotiate with other NBL clubs given the uncertainty at the Wollongong club.