Professional CCTV equipment installer for residential/small business?

I am looking to install a professional grade (not a consumer Ring/Blink/Nest/Eufy type), high res/high impact CCTV cams outside my property.

Please share your experience: what systems/models did you install? What contractors would you recommend? Are they wireless/IP/coax/other? Where does it record to? What was the price (overall or per camera)? THANK YOU!