Simulations Plus, Inc. engages in the provision of software and consulting services supporting drug discovery, development, research, clinical trial operations, regulatory submissions, and commercialization. The firm operates through the Software and Services segment. The Software segment offers software products for pharmaceutical research, development, and commercialization of the firm's products. The Services segment focuses on contracted consulting studies for customers and offers services supporting marketplace insight and medical communications for clinical and commercial drug development. The company was founded by Walter S. Woltosz and Virginia E. Woltosz on July 17, 1996 and is headquartered in Durham, NC.