Ericpodeofcroydon is right they are MDM not Starlux or SEGOM.
MDM was set up in France in 1942 by Mr Rene Daniel, he made 54mm lead figures for the collectors market, it was a very small scale "cottage industry" firm. After the end of the war he started selling them under the trade mark MDM which was in honour of his two son Marc and Michel.
In 1959 they started making the figures in plastic in a smaller scale 40mm and that's what you have in the photographs. The set of Dutch Grenadiers in blue tunics are earlier production than the Line Infantry in red, you can tell this from the creamy coloured acetate plastic they are moulded in, which is the same as SEGOM figures were made in. Also the detailing and painting of the earlier figures is not so good. The later figures were made in a high quality white hard polystyrene.
They only produced figures of the Napoleonic period, predominantly the French and Allied forces, infantry, musicians, cavalry, artillery and personalities. There was a very small range of Russian and Austrian infantry, mostly thay came in marching poses but there were some action ones as well.
You don't see them much outside of France, I remember seeing them on sale at the Musee de Les Invalides in Paris in the 1970's but haven't seen or heard anything of them since then so assume thay folded some time since. They turn up occasionally on the French ebay site but as you might expect, they sell for big money!
Hope Y'all had a good Christmas. All the best from Brian in London.