Amplifiers - MMIC:
Advanced Semiconductor Business - ASB Inc.
Silicon/Germanium RF Power Amplifiers & LNAs
ASB's RF Power Amplifiers and Low Noise Amplifiers (LNAs) are designed for high linearity and low noise applications for modern wireless and wireline telecommunication systems such as mobile infrastructure equipment, CATV and many other RF applications. All the products are manufactured using the companies state-of-the-art SiGe-base bipolar process resulting in cost-effective RF components to meet fast-growing competitive wireless markets.
Web: www.asb.co.kr
Amcom

MMIC PA s in SMT packages include
50MHz - 2500MHz 3w MMIC PA
1500MHz - 2500MHz 5w MMIC PA
3-4GHz 4w MMIC PA
IEEE 802.11b/g 27dBm amp
VSAT 1W PA
Web: www.amcomusa.com
Velocium - Northrop Grumman Space Technology 

World leading MMIC technology in GaAs and InP
Advanced technologies
Proven high volume processes
GaAs MMICs to 94GHz
InP MMICs to 220GHz
HEMT and HBT
Complete chipset solutions for military, space, automotive and commercial applications.
Web: www.velocium.com
Also see - Semiconductors: MMIC