I found it!
I purchased a specialty cutting station / mat / ruler system at a quilt show many, many years ago, and I have long since removed the cutting mat (many times over) which had the brand information on it. I also never used the ruler system – I just really liked the base of the mat. I received another email about my cutting station this morning, and I finally found that the company does in fact still exist. You can find more details at QuiltCut.
I am in no way affiliated with QuiltCut, but I do use the base from the fabric cutting system and like having edges to press my rulers against as I cut (I have to admit that it is more expensive than I remember… ). I am also posting this for my own benefit so that I won’t have to scramble to remember this information again in the future, should need arise!