Exactly what kind of science cause Shavara is a biologist/alchemist so most of her creations are either very force related (Ring, her outfit) or very organic based (a healing plant, medical technology, that sort of thing.)
Don't know a thing about Mandark or Dextar though. And not sure if you'd be interested in competing with someone who lives on the edge of the galaxy lol (she's in the Eternal Empire area...sort of.). Also her research isn't as business based right now. She isn't doing it for much profit.
Kind of doubt this is the kind of science or rival you're looking for but figured I'd toss it up anyway.