After observing the help for his aging parents, Engelberger saw the robotics automations could be used in the medical field. In 1984, Engelberger founded Transitions Research Corporation. He introduced the HelpMate, a mobile robot hospital courier, as the flagship product of his new company. He hoped to kick-start a new industry for in-home robots, but he started in 1988 by selling his first HelpMate to Danbury Hospital, located in the same Connecticut city where his company was based. The medical robot was successful enough that the hospital ended up purchasing another, and within a decade, well over 100 hospitals worldwide operated HelpMates, whether purchased outright or rented from Engelberger's company, which he renamed HelpMate Robotics Inc.