Remington, the longest continually existing business in America, since 1813.
I take it that Remington makes so called “ assault Rifles” , I assume that because we all know that the left does NOT want to take away all our guns, just assault rifles. LOL that is what they say all the time but we know better eh? So why are they not saying, we only want Remington to quit making assault rifles but okay to keep making the hunting rifles.
Very interesting list below. It contradicts your date.
https://en.wikipedia.org/wiki/List_of_oldest_companies_in_the_United_States