Violet is a robot developed by which Irish startup that focuses on AI for healthcare?

Violet is a robot developed by Akara, an Irish startup that specializes in applying artificial intelligence to healthcare solutions. Akara is known for its innovative use of robotics in clinical settings, aiming to improve patient care and streamline healthcare processes. The company's focus is primarily on integrating intelligent systems that can assist in various tasks within healthcare environments, which allows medical professionals to dedicate more time to patient interaction rather than routine tasks.

The other companies listed do not have the same association with Violet. While there are many organizations working in the healthcare technology space, Akara is specifically noted for developing technology that incorporates AI and robotics, making it the correct answer in this context.