Broad services. Innovative approaches. Deep experience. 

ILS, Integrated Laboratory Systems, now an Inotiv company, delivers Toxicology Services for your research and regulatory compliance needs.



ILS is a provider of integrated, comprehensive, multidisciplinary support for clients needing toxicology support for research and regulatory compliance. Our aim? To combine scientific excellence with efficient and effective management, so we could handle everything from the everyday to the never-before-seen in a responsive and cost-effective manner.

Decades later, building on that distinctive and now well-proven platform, ILS plays an important role in exciting and rewarding areas of toxicology:


Management Team

David Allen, Ph.D.

Vice President


Dr. Allen provides scientific leadership, management and direction to ILS’ programs and core services. He works closely with all scientific staff to support the planning and execution of ILS growth plans, and leads staff planning and employee development. He has over 17 years of experience in regulatory toxicology, test method validation and in vitro biology. At ILS, he serves as the Principal Investigator for the National Toxicology Program’s Interagency Center for the Evaluation of Alternative Toxicological Methods (NICEATM) and was the 2017 recipient of the Society of Toxicology Enhancement of Animal Welfare Award. He is the current President of the American Society for Cellular and Computational Toxicology and is a past President of the Society of Toxicology In Vitro and Alternative Methods Specialty Section. Prior to joining ILS, he was a toxicologist for the Food and Drug Administration, Center for Drug Evaluation and Research, where he was responsible for evaluating toxicological and pharmacological data for investigational new drug applications. He received his B.S. in Zoology from North Carolina State University, his M.S. in Biological Sciences from the University of North Carolina at Wilmington, and his Ph.D. in Cell Biology from North Carolina State University.

Brad Blackard, MSPH

Sr. Director, Operations


Mr. Blackard has more than 25 years of experience in the environmental health science industry and over 15 years of experience managing federal contracts. Before reaching his current position at ILS, he served as a Program Manager for six years, Director of Operations for two years and the Chief Operating Officer for five years. His role includes managing the daily and long-term business operations of the company, including Finance, Contracts, Human Resources, Information Technology, Quality Assurance, Health and Safety, and Facility Administration. He works with the President to assure the aggressive and successful growth of the company. He holds a B.S. in Zoology from North Carolina State University, and an MSPH in Environmental Sciences and Engineering, Environmental Management and Policy from the University of North Carolina at Chapel Hill.

Subscribe to updates from Inotiv

Sign up and you’ll receive the latest updates that matter to you, delivered straight to your inbox.

Subscribe now