Is it correct to only make a bracha on dipping the vessels when you know it was made by a non Jewish company or even if the vessel was made by a Jewish company one makes a bracha? I heard there is an issue of a doubt in marking a blessing and therefore some don’t make a blessing when it is owned by a Jew.

If it was made by a Jewish company you don’t need to dip it but if you don’t know who it was made from you can assume it was made by a non Jewish company