Aldec

Aldec, Inc. is a privately owned electronic design automation company based in Henderson, Nevada that provides software and hardware used in creation and verification of digital designs targeting FPGA and ASIC technologies. 
As a member of Accellera and IEEE Standards Association Aldec actively participates in the process of developing new standards and updating existing standards (e.g. VHDL, SystemVerilog). Aldec provides an HDL simulation engine for other EDA tools such as Altium Designer and bundles special version of its tools with FPGA vendors software such as Lattice.
Education.
Aldec provides fully functional, heavily discounted versions of its software for educational institutions worldwide (Kumaon Engineering College, National Technology University).
Aldec also offers a special Student-Edition of Active-HDL, downloadable from Aldec's website. The Student-Edition has limited design capacity and some reduction of program functionality, but supports both design languages (Verilog resp. VHDL).
The company also supports local education - in 1999 it contributed to the establishment of the "Aldec Digital Design Laboratory" at the UNLV.
Aldec software is packaged with several electronic design related books (e.g. "Digital Design: Principles and Practices", "CONTEMPORARY LOGIC DESIGN").
Student Edition of Active-HDL was the first HDL simulator to be sold at Walmart.