Miscellaneous data about extensions:

  - GLU enumerant reserved values
  - Information about extension vendors (probably out of date and incomplete)

GLU Enumerants
==============

Value Range     Definition      Contact
                Control         (if different)

100208          SGI


Definition      Contact             Email
Control
==========      =======             =====
OpenGL ARB      Jon Leech           jon 'at' alumni.caltech.edu
Khronos         Jon Leech           jon 'at' alumni.caltech.edu (OpenML, OpenGL ES)
Apple           Bob Beretta         beretta 'at' apple.com
ARM             Tom Olson           tom.olson 'at' arm.com
AMD and ATI     Graham Sellers      graham.sellers 'at' amd.com
ATI/NVIDIA      Graham Sellers      graham.sellers 'at' amd.com
Broadcom        Gary Sweet          gsweet 'at' broadcom.com
HP              Andrew Wiltzius     andrew.wiltzius 'at' hp.com
Imagination     Graham Connor       gconnor 'at' videologic.com
Intel           Ian Romanick        ian.d.romanick 'at' intel.com
Mesa            Brian Paul          brianp 'at' mesa3d.org
Microsoft       Dave Aronson        daronson 'at' microsoft.com
NEC             Seiji Uchida        uchida 'at' hpc.bs1.fc.nec.co.jp
NVIDIA          James Jones         jajones 'at' nvidia.com
S3              Yanjun Zhang        YanjunZhang 'at' s3graphics.com
Vivante         Frido Garritsen     TBD

Out of business / acquired / unknown:

3Dfx - Acquired by NVIDIA
3Dlabs - Acquired by Creative, refocused on mobile, renamed ZiiLabs
ADD - Out of business
ATI - Acquired by AMD
Compaq - Acquired by HP
DEC - Acquired by Compaq, then HP
E&S - No longer in the graphics business (sells planetarium displays)
HP - No longer in the graphics business (other than as a system integrator)
IBM - No longer in the graphics business (other than as a system integrator)
Intense3D - Acquired by 3Dlabs
Intergraph - Acquired by 3Dlabs. Spinoff of Intense3D.
Micron - No longer in the graphics business
KPC (Kubota) - Out of business
PGI (Pacific Graphics Inc.) - Acquired by Template Graphics Systems
Pixelfusion - No longer in the graphics business
Rendition - Acquired by Micron
SGI (Silicon Graphics Inc.) - Acquired by Silicon Graphics International, then HP
SUN - Acquired by Oracle. No longer in the graphics business.
XGI - Acquired by Silicon Integrated Systems. No longer in the graphics business.
ZiiLabs - Still has a website but appears to be inactive as of 2017-01-12.