Hey all, I would like to add my resource to the list here. I have been mining since 2017 and I find that there is a lack of comprehensive directory of companies for people inside and outside of the industry to go do research. So my friends and I created https://asic.guide/

It's a directory that lists ASIC manufacturers (you will be surprised that there are more than just Bitmain, Microbt, Avalon, lol), container manufacturers, distributors, resellers, hosting providers, repair centers and many more. The goal of the site is to be the comprehensive directory so people have an easy place to verify companies (and don't get scammed by going to the wrong website, etc.)

It's an ongoing project so any feedback is definitely welcomed!