As a general rule, no, this is not allowable. There are three exceptions where limited and tightly controlled participation may be approved, however, that involve an employee of a commercial interest serving the role of a presenter. A provider must demonstrate intentionality in involving an industry employee (i.e. the reason the individual was chosen, given their conflict-of-interest), and the content s/he speaks on cannot be related to the products/services of his or her company. Effectively, content must be non-clinical, or about research so early in the discovery process there is no product yet developed. More information can be found at:
http://www.accme.org/ask-accme/are-there-any-circumstances-when-employees-accme-defined-commercial-interests-can-be.