Fraudulent selling of my song

Years ago I signed an agreement to place my song on a compilation CD and I was to earn royalties. The company has disappeared and I cannot find them. But my song is for sale on iTunes, Amazon, Spotify etc under their compilation and I've received no money. Since I can't find the company anymore, who can I contact to get my song removed from the compilation and/or ensure this company is not earning royalties for my song? Thanks for your help.