Those would be made by Chelton. You can barely make it out in the upper left hand corner. not sure model #'s
 
Chelton

Hi,
They are "Chelton" EFIS. I don't know if they still produce it (I google it quickly and did not find EFIS on their website). Maybe a more thorough search on this EFIS and you will find the informations you want.
From what I remember, they are (were??) pretty expensive.

Hope this will help you

Have a good day