Diligent Robotics

Acquired by Serve Robotics · 2026 · $25.7M

Diligent Robotics was a Healthcare Robots company founded in 2017 and based in Austin, Texas, United States. It was acquired by Serve Robotics in 2026 for $25.7M.

Diligent Robotics built Moxi, an autonomous mobile manipulation robot deployed inside US hospitals to run non-clinical errands — delivering medications from pharmacy, fetching supplies, picking up lab specimens, and shuttling personal protective equipment — so that nurses and pharmacy technicians can spend more time on direct patient care. Moxi uses a mobile base with a single arm plus social-intelligence behaviors (expressive 'eyes,' gestures, hallway etiquette). The fleet crossed 1.25 million hospital deliveries across 25+ US health systems. The company was founded in 2017 in Austin, Texas by CEO Andrea Thomaz (former UT Austin and Georgia Tech robotics professor) and CTO Vivian Chu. Diligent raised approximately USD 75M+ across seed, Series A, Series B, and a 2024 extension round. In 2025 Diligent unveiled Moxi 2.0 with NVIDIA-accelerated perception. On January 20, 2026, Serve Robotics (NASDAQ: SERV) announced a definitive agreement to acquire Diligent Robotics; the deal closed January 27, 2026 at a purchase price of approximately $25.7M in Serve common stock plus up to $5.3M in earnouts. Diligent now operates as a wholly owned subsidiary of Serve Robotics, with Andrea Thomaz continuing as CEO of the Diligent entity.

Diligent is the clearest commercial-traction story in US healthcare robotics: an operating fleet at 25+ hospitals with real volume metrics and strategic backing from a major health system, setting the reference point for any generalist humanoid competing in hospital workflows.

diligentrobots.com Healthcare Robots

United States

At a glance

Total raised

$75M

last round series b extension

Headcount

51-200

approximate · public range

Headquarters

Austin, Texas

United States

Founded

2017

9 years active

Status

Acquired

by Serve Robotics

Patents on file

Funding history

Total raised

$75M

Rounds tracked

Latest stage

Series B extension

Date	Stage	Amount	Valuation	Lead investors
Jun 1, 2024	Series B extension	$25M	—	Canaan

How they make money

Hardware + recurring services

Most recent patents

Diligent Robotics, Inc.·2025-01-21
Systems, Apparatuses, And Methods For Robotic Learning And Execution Of Skills Including Navigation And Manipulation Functions
US12202142
Abstract
Systems, Apparatuses, And Methods For Robotic Learning And Execution Of Skills Including Navigation And Manipulation Functions
US12202142
Systems, apparatus, and methods are described for robotic learning and execution of skills. A robotic apparatus can include a memory, a processor, sensors, and one or more movable components (e.g., a manipulating element and/or a transport element). The processor can be operatively coupled to the memory, the movable elements, and the sensors, and configured to obtain information of an environment, including one or more objects located within the environment. In some embodiments, the processor can be configured to learn skills through demonstration, exploration, user inputs, etc. In some embodiments, the processor can be configured to execute skills and/or arbitrate between different behaviors and/or actions. In some embodiments, the processor can be configured to execute skills and/or behaviors using cached trajectories or plans. In some embodiments, the processor can be configured to execute skills requiring navigation and manipulation behaviors.
View on Google Patents
Diligent Robotics, Inc.·2024-12-24
Systems, Apparatus, And Methods For Robotic Learning And Execution Of Skills
US12172314
Abstract
Systems, Apparatus, And Methods For Robotic Learning And Execution Of Skills
US12172314
Systems, apparatus, and methods are described for robotic learning and execution of skills. A robotic apparatus can include a memory, a processor, sensors, and one or more movable components (e.g., a manipulating element and/or a transport element). The processor can be operatively coupled to the memory, the movable elements, and the sensors, and configured to obtain information of an environment, including one or more objects located within the environment. In some embodiments, the processor can be configured to learn skills through demonstration, exploration, user inputs, etc. In some embodiments, the processor can be configured to execute skills and/or arbitrate between different behaviors and/or actions. In some embodiments, the processor can be configured to learn an environmental constraint. In some embodiments, the processor can be configured to learn using a general model of a skill.
View on Google Patents

Diligent Robotics

At a glance

Funding history

How they make money

Founder backgrounds

Andrea Thomaz

Vivian Chu

AI bull / bear

In the news

Watch

Leadership

Products

Moxi (hospital delivery and errand robot)

Moxi 2.0

Most recent patents

Systems, Apparatuses, And Methods For Robotic Learning And Execution Of Skills Including Navigation And Manipulation Functions

Systems, Apparatuses, And Methods For Robotic Learning And Execution Of Skills Including Navigation And Manipulation Functions

Systems, Apparatus, And Methods For Robotic Learning And Execution Of Skills

Systems, Apparatus, And Methods For Robotic Learning And Execution Of Skills

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