Voraxx

The Voraxx was a trade consortium, known for their skills as buyers and sellers, in particular to engage in slave trade.

Known members of the consortium were anthromorphic crocodiles, dressed in suits.
 * It is not clear if Voraxx refers to this species or a trade composed by different species.

Their technology includes trans-mat devices and spaceships.

In one occasion, some members kidnapped Jamie McCrimmon in order to sell him as a rare antique in an auction of theirs, later stopped by the Second Doctor. (COMIC: Prisoners of Time)