One idea proposed is to have unique ARINC 424 records created with the cold weather approach crossing altitudes coded into the database.
"The cold weather altitudes" would not work because it depends on the temperature, so -10ºC is not the same as -30ºC.
Wouldn't it be better to have the possibility to enter a delta T, (negative) temperature deviation from ISA when selecting the approach.
As for the companies. The USAF where I did my pilot training have published these corrections, so does the Belgian airforce where I fly. In the French airforce where I was an instructor for a few years they never heard about this.
Bart