From their website:
The companys headquarters is based in Bayonne New Jersey and a second manufacturing facility is located in Rice Lake Wisconsin.
The Bayonne site is right on the water, the Kill Van Kull, about one mile East of the Bayonne Bridge.
If you don't know it's there, you don't know it's there, it's that low key. Even after passing it on the water a couple hundred times and fishing on the dock right outside their gate, it took a friend telling Me he got a job there making parts for Me to know it was there.