There wasn't just one group. The first group was called Euclid (1989), later came Olympus en Centaur (which is the name for a road group nowadays). The last groups were Record OR and Icarus. These two were very similar in looks and function and differed only in details. I probably missed one or two groups, because they had some cheaper plastic versions as well. As far as I know Record OR was discontinued in 1995.
Then they made a lot of cool rims too. V-shaped, box shaped, etc. Ultra light and narrow.