Rivr the Zurich-based autonomous robotics startup known for its stair-climbing delivery robot, has been acquired by Amazon in a deal that signals the e-commerce giant’s interest in doorstep delivery. Terms of the deal weren’t disclosed.

Co-founder and CEO Marko Bjelonic, who once described the four-legged wheeled robot to TechCrunch as a “dog on roller skates,” shared the acquisition news on LinkedIn. The Information was first to report the deal.

Rivr got the attention of Amazon long before its pilot program. The Amazon Industrial Innovation Fund and Bezos Expeditions invested in Rivr as part of a $22.2 million seed round that closed in 2024, according to PitchBook. The startup, which had raised a total of $25 million, was last valued at $100 million.$AMZN