CMOS Switch for -5, 10, and 5V
Some switches like ADG733 have a separate Vss pin which can be at a lower potential than the logic GND; this means you could have a -10V supply on the Vss pin which would allow the gate to control up to a -10V signal whilst still having a 0-Vdd logic input. Unfortunately the ADG733 is limited to a 5.5V supply; but there are probably other parts that will do the same job (numbers escape me at the moment.)