Does anybody know what large companies are currently using agile iconix process??
The only ones I know are the one I could find on the ICONIX Software Engineering corporate website:
Case studies: see how ESRI Professional Services, Virginia Department of Motor Vehicles, and Large Synoptic Survey Telescope are succeeding with ICONIX Process
I may be wrong but to me, the ICONIX methodology isn't really widely used and it looks more like a way to sell their Enterprise Architect product.
And personally, I never had big successes with too much UML centric approaches (à la MDA).