To my knowledge, Jewell does not make a trigger for Savage. I also do not believe Jewell is out of business. Rifle Basix makes a good aftermarket Savage trigger that is popular.
I have a early 60's Savage 110 that Kevin at MCR massaged into an excellent trigger. My newer model 12 lost the accutrigger for a Sharp Shooter Supply trigger. I agree it is no Jewel, but it is a fine trigger.
If I understand correctly, if you're considering the evolution trigger, it can only be installed on actions that have been timed and trued by Sharp Shooters Supply.