Imperial Clinical Research Services, LLC Imperial Clinical Research Services, LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Research & Development Imperial Clinical Research Services, LLC 3100 Walkent DrGrand Rapids, MI 49544 (800) 777-2591 Visit Site Send a message to: Imperial Clinical Research Services, LLC Your Name: Your Email: Subject: Message: (Date: 4/2/2026)