Flock Cameras and Other ALPRS

I’ve been adding ALPRs throughout the region in my community and, first of all, wow there is so many of them. Second I am aware of what Flock cameras look like but I am unable to figure out who owns / creates the other more squat looking ones. If anyone has any information on how to identify the other cameras please let me know, I’d like for my information to be as accurate and precise as possible!