Diligent Robotics is turning Moxi hospital robots into a clinical logistics layer

Serve Robotics agreed to acquire Diligent Robotics on January 20, 2026, valuing Diligent common stock at $29 million with up to $5.3 million in performance-based consideration. The acquisition put Moxi's hospital operating record in view: more than 1.25 million deliveries, nearly 100 robots, and more than 25 hospital facilities.

Andrea Thomaz and Vivian Chu founded Diligent in 2017 after careers in human-robot interaction. Thomaz is CEO and co-founder, with MIT Media Lab and University of Texas at Austin social robotics work behind the company origin. Chu is co-founder and chief innovation officer. Diligent raised $25 million in new financing in September 2023, with Canaan leading the round.

Moxi is built for non-patient-facing hospital logistics: medications, lab samples, supplies, and equipment. The robot does not need to replace clinical judgment; it needs to reduce routine walking and delivery burden so nurses and other staff stay closer to patient care. Diligent marked its one millionth delivery with Moxi #119 at a Midwest academic health system on a route between an inpatient pharmacy and an outpatient infusion center.

Diligent unveiled Moxi 2.0 in October 2025 after collecting three years of deployment data from busy hospital environments. The new hardware uses NVIDIA IGX Thor and is designed for service panels, handles, denser indoor routing, and obstacles such as beds and wheelchairs. Source

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Serve expects annual sales of $200,000 to $400,000 per hospital.