Entrepreneurs in two of the three start-up accelerators in the Knoxville-Oak Ridge region will be attending classes together this fall under a new collaborative effort. In an announcement made on August 7, administrators at Oak Ridge National Laboratory (ORNL) said that Fellows in Cohort 7 of its “Innovation Crossroads” (IC) will complete the “Spark Cleantech Accelerator,” a 12-week program offered by the Spark Innovation Center at the University of Tennessee (UT) Research Park.