Sean Greene has joined the Case Foundation as entrepreneur in residence. Greene most recently served as associate administrator for Investment and special advisor for Innovation at the U.S. Small Business Administration.

Tony Grindberg, executive director at the NDSU Research and Technology Park, has announced his resignation effective Sept. 30. He has accepted a position as the business unit manager for the Aerospace Business Unit of Appareo Systems, LLC. Appareo Systems is headquartered in the NDSU Research Park on the NDSU campus. Grindberg has been with the NDSU Research Park for the past 10 years.