Pesonal Instagram: rando_richard
Business Twitter & Instagram: Both are under the name of @eogear_inc (based on my company eoGEAR Inc.).
Most of the time, I just use #eogear instead of #eogear_inc, but also use #rando_richard a lot too.
I also post useful technical info and trip reports on my companies Facebook page. Frequently, I do simul-posting to all three, but may change that in the future.