Omega, as far as I Know, they make their own balls.
Oh, Columbia has also been making AMF's balls for a long time.
Storm makes Roto-Grip, which they own.
Storm also manufactures Dyno-Thane, but DT is totally independent. Storm uses both their own coverstocks and special ones that Dyno-Thane gives them with which they manufacture DT's own balls. SO DT's balls are all their own, with no relationship to Storm's balls at all.
FYI ROto-Grip people say their coverstocks are not shared by Storm.
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