I bought a sprue of plastic Algoryn soldiers from Warlord Games' Beyond The Gates Of Antares. They're not the greatest of sculpts, but they are big and bulky, and have the sort of smooth, shaped armour that fits both the Sedition men and the cyberpunk look in general. As per their smaller comrades, I sprayed them white and applied Black Templar contrast paint.
It's not terribly subtle and it won't win any prizes, but it looks fine, and it works. Here's one of the new heavies next to a Seditioner.
I've had some other Algoryn metal models lying around for about a year, which I purchased in a sale. I took the chance to paint them up with the contrast paint. These are the bodyguards for an officer, who I'd use as a corporate or alien commander. They're clearly not human, and I painted them green, which does make them look slightly like old Doctor Who villains, or unusually fascist sprouts.
I really like the poses, especially the guard checking her earpiece. And here's the boss: