Yossi Gross (Hebrew: יוסי גרוס; born February 5, 1947) is an Israeli engineer, inventor and entrepreneur. He is a founding partner of Rainbow Medical, an operational investment company, established to launch companies based on the technological ideas and inventions of Gross. Yossi Gross first started his professional career in the 20th century as a project manager of the Lavi (IAI Lavi ) program for the Israel Air Force. From the 1990s through to the beginning of the 21st century, Gross started 27 medical device companies based on his various inventions in electronics, signal processing, nanotechnology, drug delivery and neurostimulation. Gross's various companies have developed or are currently developing treatments for diabetes, gastroenterology, stroke, ophthalmology, asthma, congestive