Built Robotics

Built Robotics

Autonomous piling robot for solar construction

Overview

Built Robotics makes autonomous construction robots for the solar industry. Its main product is an autonomous piling system that trenches and installs foundations to depths over 60 inches, running with minimal human supervision on dangerous sites. The robot uses sensors and software to adapt to different soils, from loose, dry materials to cohesive, poorly draining ones. It is sold or leased to solar contractors, with optional maintenance, software updates, and training to support turnkey robotic operations and safety.

About Built Robotics

Simplify's Rating
Why Built Robotics is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Robotics & Automation

Hardware

Industrial & Manufacturing

Energy

Company Size

11-50

Company Stage

Series C

Total Funding

$112M

Headquarters

San Francisco, California

Founded

2016

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Simplify's Take

What believers are saying

  • Built announced a $75 million Blattner Energy contract in July 2026.
  • About 10 robots now drive nearly 1,000 piles daily for Meta-linked Louisiana solar.
  • Penn xLAB collaboration in June 2026 should improve perception models and expand platform use.

What critics are saying

  • Built remains narrowly tied to utility-scale solar and data-center power builds.
  • Any fatal safety incident triggers OSHA scrutiny and freezes contractor adoption across AEM networks.
  • RaaS pricing and fleet availability strain margins if Blattner or other anchors slow deployments.

What makes Built Robotics unique

  • RPD 35 combines surveying, pile distribution, driving, and inspection into one autonomous system.
  • Built operates in live solar jobsites with 40-plus deployments and 50,000 field hours.
  • Penn xLAB partnership gives Built safety-critical validation for physical AI on construction sites.

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Funding

Total Funding

$112M

Above

Industry Average

Funded Over

3 Rounds

Notable Investors:
Series C funding is usually for startups that are doing well and are looking for more money to fuel major growth, such as acquiring other companies, expanding into global markets, or launching new product lines. Investors typically include larger venture capital firms and private equity.
Series C Funding Comparison
Above Average

Industry standards

$50M
$50M
Medium
$62M
SeatGeek
$64M
Built Robotics
$100M
Oura

Benefits

Medical, vision, & dental plans

Competitive compensation

401(k) with matching

Paid holidays & PTO

Wellness reimbursement

Lunch & snacks

Tsa precheck

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

-2%

2 year growth

-2%
PR Newswire
Jun 16th, 2026
Built Robotics and Penn Engineering's xLAB partner to advance physical AI in construction.

Built Robotics and Penn Engineering's xLAB partner to advance physical AI in construction. Jun 16, 2026, 12:28 ET SAN FRANCISCO and PHILADELPHIA, June 16, 2026 /PRNewswire/ - Built Robotics, the leader in physical AI for construction, and xLAB, the Safe Autonomous Systems Lab, headed by Rahul Mangharam, Professor in Electrical and Systems Engineering and principal investigator of xLAB at Penn Engineering, today announce a research collaboration to advance physical AI models for the construction industry. Safety is at the heart of the collaboration, leveraging xLAB's years of experience developing high-performance, safety-critical autonomous systems and Built Robotics' proprietary edge AI model for personnel detection and human safety. "xLAB is committed to building safety-critical autonomous systems for real-world deployment, and construction represents one of the most demanding frontiers for that work," said Mangharam. "The fundamental challenge is bridging the gap between validation in controlled environments and robust performance under operational conditions. Our collaboration with Built will give us access to active jobsites with high-fidelity mapping data and real-world operational parameters, enabling us to build practical autonomous systems solving a real-world need." "What xLAB has built in safety architecture is precisely the kind of rigorous foundation that physical AI demands," said Noah Ready-Campbell, CEO of Built Robotics. "Our proprietary edge AI model for personnel detection has been refined across some of the most demanding operational environments in the industry - active construction sites with hundreds of employees stretching over thousands of acres." Liam Osler, Engineering Director for AI at Built Robotics commented, "We are driven by the same core conviction as xLAB: that physical AI must first be safe, and that it is poised to set a new standard for safety in construction." The initial phase of the research pilot will focus on deploying Built Robotics' edge AI model across a fleet of construction survey robots tasked with collecting high-fidelity sensor data on active solar projects. This data will then be used to improve Built's own AI models, and to expand the models to other vehicle platforms and construction activities. "With one of the most respected robotics programs in the world, Penn Engineering - my alma mater - was a natural starting point for this collaboration," said Ready-Campbell. "Dean Vijay Kumar's pioneering work on quadcopters and multi-robot coordination at the GRASP Lab was formative for me when I started Built. And as our fleet of robots has scaled in the field, the mission alignment with xLAB has become crystal clear. I couldn't be more excited to partner with Professor Mangharam to set a new bar for how physical AI is designed, validated, and deployed in the field." About Built Robotics Built Robotics is the leader in physical AI for construction. Backed by top investors including Founders Fund, NEA, and Tiger Global, the company has established a proven track record in the $300 billion utility-scale solar industry. Founded in 2016, Built Robotics is headquartered in San Francisco. About xLAB The Safe Autonomous Systems Lab (xLAB), led by Rahul Mangharam, Professor in Electrical and Systems Engineering and principal investigator of xLAB at Penn Engineering, focuses on the intersection of formal methods, machine learning, and embedded systems. xLAB specializes in developing provably safe, highly resilient software architectures for autonomous vehicles, medical devices, and cyber-physical infrastructure. SOURCE Built Robotics

WTWH Media LLC
Jun 16th, 2026
Built Robotics, Penn xLAB to develop physical AI for construction.

Built Robotics, Penn xLAB to develop physical AI for construction. Built will leverage small mobile robots equipped with a sensor suite to scan jobsites and build a dataset to be analyzed by xLAB researchers at the University of Pennsylvania. Credit: Built Robotics The University of Pennsylvania's Safe Autonomous Systems Lab (xLAB) is teaming up with Built Robotics to turn construction sites into a proving ground for "physical AI." Built plans to use its large construction robotics dataset and a new purpose-built, data-collection robot to develop a world foundation model for how machines and people can safely coexist on the job site. Built Robotics has been in the field since 2016, developing autonomous controls for large construction equipment. The company entered the utility-scale solar market in 2023 with the announcement of a new product called the RPD 35, or Robotic Pile Driver. Since its inception, Built has amassed more than 50,000 hours of operations, installed more than 3 gigawatts of solar, and is deployed at 40+ sites. Rahul Mangharam is a professor in electrical and systems engineering and the principal investigator of xLAB at Penn Engineering. Noah Ready-Campbell, founder and CEO of Built Robotics, is a Penn alumn, so this relationship is an obvious one for both parties. Mangharam has an interest in the safety-critical issues with automating outdoor construction equipment, and the partnership will bring real-world data back to the lab. Built expects to collect diverse personnel and environment data beyond what the work-focused piling and trenching robots naturally see. This includes more edge cases such as odd body poses, occlusions, weird lighting, unexpected human behavior. "xLAB is committed to building safety-critical autonomous systems for real-world deployment, and construction represents one of the most demanding frontiers for that work," said Mangharam. "The fundamental challenge is bridging the gap between validation in controlled environments and robust performance under operational conditions. Our collaboration with Built will give us access to active jobsites with high-fidelity mapping data and real-world operational parameters, enabling us to build practical autonomous systems solving a real-world need." "What xLAB has built in safety architecture is precisely the kind of rigorous foundation that physical AI demands," said Ready-Campbell. "Our proprietary edge AI model for personnel detection has been refined across some of the most demanding operational environments in the industry - active construction sites with hundreds of employees stretching over thousands of acres." Submit your session idea for the 2026 RoboBusiness By systematically collecting and labeling edge cases, the collaboration will design AI models capable of detecting humans in atypical conditions and unique construction environments. This advanced training pushes the edge AI model toward "superhuman" perception, enabling it to identify unusual, transient dangers that humans might miss. Ready-Campbell told The Robot Report, "We're members of AEM (Association of Equipment Manufacturers), and they have what's called the Futures Council, which is basically a kind of forward-looking committee that is looking at, among other things, physical AI and construction and autonomous machines. We think safety is a rising tide that lifts all boats. If there's a safety issue, even if it wasn't one of Built's robots, it will cast a pall across the overall industry, and so the right thing to do is to try to help everybody work safely across the industry." Ready-Campbell also noted that Erol Ahmed, VP of communications at Built, is currently the chair of the AEM Futures Council. Liam Osler, engineering director for AI at Built Robotics, commented, "We are driven by the same core conviction as xLAB: that physical AI must first be safe, and that it is poised to set a new standard for safety in construction." The initial phase of the research pilot will focus on deploying Built Robotics' edge AI model across a fleet of construction survey robots tasked with collecting high-fidelity sensor data on active solar projects. This data will then be used to improve Built's own AI models and to expand the models to other vehicle platforms and construction activities. "With one of the most respected robotics programs in the world, Penn Engineering - my alma mater - was a natural starting point for this collaboration," said Ready-Campbell. "Dean Vijay Kumar's pioneering work on quadcopters and multi-robot coordination at the GRASP Lab was formative for me when I started Built. And as our fleet of robots has scaled in the field, the mission alignment with xLAB has become crystal clear. I couldn't be more excited to partner with Professor Mangharam to set a new bar for how physical AI is designed, validated, and deployed in the field."

R.J. Hillhouse
Jan 4th, 2024
Introducing Mobile ALOHA: Revolutionizing Robotics with Low-Cost Whole-Body Teleoperation

Built Robotics introduced the RPD 35 solar piling robot, and the industry received a significant influx of $1.63 billion in investment.

The Birmingham Group
Oct 31st, 2023
5 Game-Changing Robot Advancements in Construction

Built Robotics' RPD35 Pile Driver: Venturing into utility-scale solar projects demands efficient solutions for driving large piles.

The Birmingham Group
Oct 31st, 2023
5 Game-Changing Robot Advancements in Construction

Built Robotics' RPD35 Pile Driver: Venturing into utility-scale solar projects demands efficient solutions for driving large piles.

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