IIRC, Kodak and a couple of Chinese mfgs (Mi and I believe Yong Nuo has announced an M43 in a smartphone like form factor) also produced some bodies and lenses

IIRC, Kodak and a couple of Chinese mfgs (Mi and I believe Yong Nuo has announced an M43 in a smartphone like form factor) also produced some bodies and lenses in the past decade, although I wouldn't put them in same class as Oly or Panny in terms of build and/or handling.