You can always use an opamp in non-inverting configuration and 1.5 x gain (10V x 1.5 = 15V), supply it from +/-18Vdc (or more) and boost its output current with two external transistors (NPN-PNP) ..
Regards,
IanP
If you use high-precision resistors to set the gain and precision opamp (for example LTC1050 or OP177) I can't see any reason why the accuracy couldn't be met ..