Receivers called in to BSA's Midland operations have had more than 20 expressions of interest in the firm.
Information packs will be sent out by Ernst & Young to companies interested in buying the whole or part of the operations which crashed with substantial debts last week.
The receivership applies to BSA Holdings and BSA Castings, both based in Redditch, and which employ 50 people and BSA Metal Powders, which has 50 people at its site in Small Heath.
It does not apply to BSA Machine Tools, based in Kitts Green, Birmingham, a separate business which broke away from the BSA Group in the 1960s.
Angela Swarbrick, a director at Ernst & Young, said: "We are still at a stage where we are gathering information about the business and sending information packs out to interested parties.
"We are continuing to run the businesses while we attempt to find a buyer, and we are in discussions with customers.
"So far, about 20 different groups have come forward expressing interest.
"We believe many of the interested buyers are very interested, and are not just on fishing trips and are encouraged by the response so far.
"We think we can sell the business as a going concern," she added.