ARM own themselves, though Apple still has a largish stake from when it was formed in the late 80's by Acorn, Apple, and VLSI.

Intel just licence the ARM architecture, add their own froody bits, and make the StrongARM. Intel are (in theory) no more important than other architecture licencees (as opposed to core licencees, which just take the core as-is and put peripherals around it - like cirrus, ti, motorola, etc).

Hugo