Dark Horse Comics

From Xenopedia

Dark Horse Comics is an American comic book company. Dark Horse publish Alien and Predator comics as well as crossover comics featuring the two franchises. Dark Horse published the first ever officially liscenced material featuring a crossover between the two franchises: the original Alien vs. Predator comic (released roughly simultaneously with the film Predator 2, which featured the first overt on-screen hint at a crossover between the two franchises).