There are 3 companies that seem to be using associative memory who refuse to disclose relevant details.
Saffron (now Intel Saffron):
https://youtu.be/lOeDeR-lhQE?list=PLRQ9_tyciapKY22Tsm1b5_Etv0sJk–lQ
Neurala:
https://youtu.be/ugYUtKrdL48
And this weird old company:
http://www.andcorporation.com/