Couldn't say who actually makes them other than I believe most are made in Japan. I have had 3, 2 currently. First one was a lighted reticule 4X rail mount on a TC Scout , used it for over 10 years, no problems. I have 2X-7X EER mounted on my 357 Max contender, stays zeroed, no problems after about 300 rounds. Also have 1.5X-5X mounted on my TC Triumph, been shot about 75 times, very accurate with no problems so far.