SEATTLE--(BUSINESS WIRE)--Accelerator Corporation, a private biotechnology investment and development company, announced today that it has added PPD, Inc. (NASDAQ:PPDI), as the sixth investor in Accelerator III, the company’s most recent investment vehicle. Inclusive of this investment from PPD, investors have committed capital in excess of $27 million to Accelerator III. PPD joins Accelerator’s syndicate of investors that includes Amgen Ventures, ARCH Venture Partners, OVP Venture Partners, WRF Capital, and Alexandria Real Estate Equities, Inc., along with its academic anchor the Institute for Systems Biology.