Ask HN: Acquisitions Department?

We've been approached by a large player in our space who is interested in potentially acquiring our startup. We'd like to get in touch with other large players in the space to see if they're also interested in an acquisition. That said, we don't have connections to these companies and are a bootstrapped startup without VC connections. Who do we contact and how do we go about contacting them?

My idea is to contact an employee of the company in an unrelated function and see if they can do an intro to somebody in the M&A dept. Is that crazy?