andrew wilder ripple neuromed ceo

Andrew Wilder, PhD

Chief Executive Officer

An owner of Ripple, Andrew is in his tenth year with the company. During his tenure Andrew has contributed in many roles from managing the software development team to leading sales, finance, operations, and business development efforts. As Chief Executive Officer, Andrew is focused on expanding Ripple’s portfolio of cutting edge neuro-technologies and growing these technologies into great companies that have a profound and lasting impact on the clinical neuro-therapeutic, and neuroscience research markets.

Andrew earned his Ph.D in Computer Science from the University of Utah. His research focused on developing a neuro-assistive device for people with spinal cord injury. As part of this effort he developed software systems to control functional electrical stimulation on hundreds of electrodes implanted in peripheral nerves. Andrew started at Ripple in 2009 as a software engineer developing applications for control of stimulation and real-time visualization of neural data. In his spare time Andrew cultivates his life-long passion for outdoor adventure.

Danny McDonnall, PhD

Chief Scientific Officer

As a founding member of Ripple, Daniel McDonnall has led the company’s neuroprosthetics research efforts since 2005. He has served as Principal Investigator on multiple research grants and contracts from NIH, DARPA, and DOD to develop advanced neural interface technologies. Dr. McDonnall has designed and conducted dozens of in vivo and clinical studies investigating tools for restoration of neuromuscular function for rare neurological conditions, including reanimation of muscles for facial paralysis patients. Serving as the President of Ripple from 2015 to 2018, he led Ripple’s role as a system integrator on the DARPA HAPTIX project to develop and test implantable medical devices to improve control of prosthetic arms and to restore touch and proprioception via selective stimulation of residual peripheral nerves. When he is not working on neural interfaces, Danny enjoys rafting whitewater rivers in Utah and singing Puccini arias with his cat, Bosephus.

Scott Hiatt, ME

Chief Technology Officer

Scott has developed many commercial mixed-signal systems for neural signal acquisition and stimulation, with particular emphasis on very low amplitude mixed-signal circuit design and hardware level programming. As Chief Technology Officer, Scott’s work is focused on fully implantable biopotential recording systems and next generation highly selective implantable stimulators to facilitate new research in bioelectric medicine, brain machine interfaces and basic neuroscience understanding. Scott completed his Master of Engineering and Bachelor of Science in Electrical Engineering while working in the Center of Neural Engineering at the University of Utah under the direction of Professor Richard Normann developing stimulation hardware, firmware and drivers to explore reanimation of paralyzed limbs by selective simultaneous access to hundreds of microelectrodes.

Scott deployed as a Forward Observer for the Mortar Section of C. Co 4th Light Armored Reconnaissance in the United States Marine Corps for Operation Iraqi Freedom in 2003. He ended his military service in 2005 as a Sergeant in the Marine Corps Reserve. He and his wife Mieka have 5 children, and are all most happy exploring the National Parks.


Jessi Mischel, PhD

Director of Global Sales

Jessi received her Ph.D in Biomedical Engineering at the University of Pittsburgh, working with Dr. Aaron Batista to develop novel tools for studying sensorimotor integration. For the last three and a half years, Jessi played a key role in elevating Ripple’s presence in the animal electrophysiology space, particularly among non-human primate researchers. She has been instrumental in Ripple’s growth, and has recently transitioned to the Ripple Neuromed team spear-heading development and sales of our new line of invasive research products.

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