Embedded Systems and Computer Architecture
A book with software which takes the reader step-by-step through the design, construction, and programming of a microprocessor (based on the classic Zilog Z80 microprocessor). Includes a Z80 IDE and a simulator with add-on devices.
http://homepage.ntlworld.com/grwilson/

Microprocessor Simulator 8085
Buy Microprocessor Simulator 8085 for Windows at Insoluz.com
http://www.insoluz.com/Micro/Micro.html

North Pole Engineering
Consultants providing FPGA, high speed memory controller for a microprocessor based system, smart I/O interface devices for mainframe systems, ASICs, high speed smart DMA controller and general microprocessor glue logic designs.
http://www.npe-inc.com

Rans & Anks Software
µP-Sim - The 8085 Microprocessor Simulator (not just any other 8085 simulator) is a total software solution to replace the microprocessor kit or the in-Circuit Emulator from training and design labs. The Simulator executes the instructions from the user entered program, instruction by instruction showing all the register and flag status at the end of execution of each instruction. The input process is fast and efficient, leading to better productivity. The Mnemonic Pad allows the user to enter the code. This makes is impossible to enter a wrong Mnemonic. The Tool tips tell you the syntax along with the operation performed by a particular Mnemonic.
http://www.geocities.com/ransandanks/

T-Recursive Technology
Embedded systems consultant for small (8-bit and 16-bit) and distributedmicroprocessor systems. Contract hardware and software developmentfor most microcontrollers. Specialist in Forth, assembly, and C.
http://www.zetetics.com/recursiv/

T-Recursive Technology
Services available from T-Recursive Technology on a contract basis.
http://www.zetetics.com/recursiv/capabil.htm#Hardware

Embedded Systems Programming
Free Subscription to Embedded Systems Programming Magazine.
http://www.tradepub.com/free/esp/

Pressure Systems
Manufacturer of precision level and pressure instrumentation; from sensors to systems; for environmental, industrial and aerospace applications.
http://www.psih.com/

iPanel Pte. Ltd.
Design, product manufacturing and automation systems using embedded microprocessor.   
http://www.ipanel.com.sg

MICON Systems L.C.C.
Microprocessor-based multifunction controller to be used in the process industry.
http://www.miconsystems.com/