Defamation of character by old employer
I was extended and offer of employment with Company A, who was supplying product to Company B. I previously worked for a sister Company of Company B and was terminated from them. As is the case, the information about me being extended an offer of employment from Company A leaked to Company B, who in turn stated that they would refuse to work with me as a result of my previous termination from their sister Company. Company A therefore decided to recind their offer of employment.
Is this a case of defamation of character by Company B. Do I have grounds to file suit against them for slander and defamation of character?
Defamation of character, additional info
P.S Company A resides in South Carolina and Company B resides in New York. The sister Company is in Virginia.