It appears that SAAB has a pretty competitive entry into the smaller AEW field, the Saab 2000 Airborne Early Warning (AEW) system:

SAAB had previously created a system for the Swedish Military based based on a slightly smaller member of this turboprop family.

The E-2 C/D from Northrop Grumman, and the IAI’s Conformal AEW (CAEW) based on the Gulfstream G550 airframe are its nearest competitors.