Sounds like a good plot arc for a long-term Traveller campaign (or series of such)! Something in the backdrop that can inform a lot of smaller plots or encounters. A non-Human corporation has achieved such success that some are starting to suggest that it might enter the "megacorp" tier, and the ripples are being felt across the Imperium.
There's a lot of potential here, I think.
"This is an inevitable result of the fallout of the Solomani Rim War, and here's why it's [insert one of following]:
- well past time
- a good development
- a sign of the decaying Imperium
- evidence of misguided "correctional" identity politics
- not a big deal either way
- an affront to the Solomani Cause
- a triumph for true Imperial values
- why the market is the true Karun
- a sign of Human favouritism for the race in question
- a Hiver plot
Depending on which race you pick, all sorts of fun wrinkles suggest themselves:
"Oh, please. That's a Dolphin-run company. Dolphins are just lackeys of Humans by default. Half of them are Solomani loyalists. Let me know when some actual *alien* makes it big".
"The Shiwonee government denounces claims that the success of this Geonee-run corporation is actually another example of Human dominance. "Geonee are not Human" stated Bigg Cheesee, chair of the Meeralo Council. "It is well known that our people are descended from the Ancients, and predate Humaniti into space."
"It's not a corporation, it's a
tuhuir, that's not the same thing. The idea that it is, that's a legal fiction and ironically another example of the Imperium's default Human perspective"