Tech firms including Google, SAP, Cisco and Samsung are among several firms interested in acquiring part or the entire stake of struggling smartphone maker BlackBerry.
The Canadian smartphone firm has also asked for initial expressions of interest from possible strategic consumers, including Intel and LG by early next week.
Potential bid from the parties are still unclear, however the buyers could be interested in BlackBerry's secure server network and patent portfolio.
Potential bidders are treading cautiously, given the uncertainty around the smartphone firm, which had already reported a quarterly loss of about $1bn, Reuters reported.
However, the value of BlackBerry's patent portfolio and licensing agreements is forecast to reduce by half by the following 18 months, which potentially limit its attractiveness.
Last month, Blackberry signed principle agreement with a consortium led by Fairfax Financial for the sale of its assets for $4.7bn (£3bn).
The successful sale would make Blackberry private, eliminating it from a public listing on Nasdaq, where their stocks have seen a free fall, reaching $8 per share from $148 in June 2008.