Bedrock Robotics: Deploying autonomous equipment for the Built World - Bessemer Venture Partners

Bedrock Robotics has raised a $600 million Series C round, with Bessemer Venture Partners participating to help the company scale the deployment of autonomous machinery on construction sites across the United States, according to a Bessemer Venture Partners article. Bessemer described observing two CAT 352 excavators, among the more difficult machines on a job site to operate, moving earth without an operator in the cab while loading a human-driven dump truck. The article says a safety system built by former Waymo engineers governs the work, and that an excavator unexpectedly sounded its horn at the driver upon finishing, a behavior Bessemer says was not explicitly programmed and instead emerged from Bedrock's Operator model, which was trained on human operator hours.

According to Bessemer, Bedrock began with the excavator, the hardest machine to automate, and reached its "operator out" milestone during the summer. The company's team includes CEO Boris Sofman, who led trucking at Waymo; CTO Kevin Peterson, who founded Marble, a sidewalk delivery company later acquired by Caterpillar before he joined Waymo; and COO Laurent Hautefeuille, formerly of Uber Freight. Bessemer notes that more than half of Bedrock's engineering team came from Waymo, and that former Waymo CEO John Krafcik advises the company.

Bessemer's investment thesis centers on labor constraints and infrastructure demand. The firm cites a $2.2 trillion annual U.S. construction market, with more than $200 billion spent each year on manually operated equipment, and reports that 88% of construction firms have difficulty filling open positions. Roughly half of the current trades workforce is expected to retire within five to seven years. Bessemer argues that autonomy matters to contractors less as a cost story than as a capacity question, enabling them to bid on projects they would otherwise pass on, particularly amid large data center and infrastructure buildouts.

Bedrock's approach differs from OEM-integrated autonomy. Its retrofit kit installs within a couple of hours, makes no permanent modifications, and is fully reversible, which Bessemer says suits jobsites running mixed fleets. The company's stack also provides a visibility layer offering real-time data on cycle times, productivity, and safety events for equipment that is not yet autonomous. Bessemer acknowledges that building in the physical world requires significant time and capital.