I find the future of robotics fascinating and frightening, and definitely worth putting some money into for the long term.
Currently, I've gone for well-established companies (ABB, Fanuc, Texas Instruments) as well as younger, riskier / a-bit-of-fun players (Arbe, Kraken, Ekso).
I'd be curious to hear what companies people have invested in / are looking at. Or people's thoughts generally on robotics as a long term investment opportunity