It was co-founded in 2005 by Peter Karpinski , a partner at Sage Hospitality .
The Sage Restaurant Group is a group of 14 restaurants in the U.S. states of Colorado , Oregon , California , Illinois , Ohio and Pennsylvania .
Sage Restaurant Group was co-founded in 2005 by Peter Karpinski , a partner at Sage Hospitality .
The Sage Restaurant Group is a group of 14 restaurants in the U.S. states of Colorado , Oregon , California , Illinois , Ohio and Pennsylvania .