Amazon acquires Rivr to deploy stair-climbing robots for doorstep delivery at scale

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Amazon has acquired Rivr, a Zurich-based robotics startup developing four-legged, stair-climbing delivery robots. The deal, confirmed this week, positions Amazon to automate the final steps of package delivery using wheel-legged robots that can navigate stairs and obstacles. Rivr had raised $25 million and was valued at $100 million before the acquisition.

Amazon Acquisition Signals Push Into Robotic Doorstep Delivery

Amazon has acquired Rivr, a Swiss robotics company developing stair-climbing delivery robots, in a move that underscores the e-commerce giant's commitment to automating last-mile delivery

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. The Zurich-based startup, formerly known as Swiss-Mile, specializes in four-legged machines that combine wheels and legs to navigate complex terrain, including stairs and doorsteps

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. While terms of the deal weren't disclosed, Amazon confirmed the acquisition in a notice sent to third-party delivery contractors this week, stating the technology will help delivery associates "carry packages from delivery vehicles to customer doorsteps"

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Source: PYMNTS

Source: PYMNTS

Rivr's Vision for General Physical AI Through Robotics and AI

Rivr co-founder and CEO Marko Bjelonic announced the Amazon acquisition on LinkedIn, describing how the deal will "accelerate our vision of building General Physical AI through doorstep delivery, bringing robotics and AI closer to real-world deployment at scale"

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. Bjelonic previously characterized Rivr's wheel-legged robots as resembling a "dog on roller skates," highlighting their unique ability to roll smoothly on flat surfaces while deploying legs to climb stairs when needed

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. The company incorporated in 2023 and achieved early successes with pilot deployments among key customers, focusing on smart city applications and security for critical infrastructure

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Austin Pilot Program Tests Real-World Delivery Capabilities

Before the Amazon acquisition, Rivr launched a pilot program in Austin through a partnership with Veho, an alternative parcel delivery platform

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. The company introduced its wheel-legged robots to deliver e-commerce parcels in May 2025, aiming to scale to 100 bots by 2026, though it remains unclear whether that milestone was reached

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. Bjelonic emphasized at the time that "with the exponential rise in eCommerce, the last mile has become the most critical -- and complex -- link in the logistics chain"

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. The company rebranded from Swiss-Mile to Rivr in March 2025 as it prepared to expand field testing with major logistics carriers

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Source: TechCrunch

Source: TechCrunch

Amazon's Broader Automation Strategy and Investment History

The Rivr deal reflects Amazon's continued investment in research and efforts to improve safety for delivery personnel, according to an Amazon spokesperson

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. Amazon's interest in Rivr predates this acquisition significantly. The Amazon Industrial Innovation Fund and Bezos Expeditions invested in Rivr as part of a $22.2 million seed round that closed in 2024

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. The startup had raised a total of $25 million and was last valued at $100 million before the acquisition

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Implications for Warehouse Operations and Delivery Associates

Amazon has been steadily pushing automation across its business for years, deploying its millionth warehouse robot last summer

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. CEO Andy Jassy has emphasized that the company pursues artificial intelligence "in virtually every corner of the company," even as Amazon laid off 16,000 white-collar workers in January and cut 100 jobs in March from its robotics division

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. Amazon uses a network of thousands of third-party contractors that deliver packages exclusively from the company's warehouses to customers

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. The company believes Rivr's technology, when working alongside delivery associates, "has the potential to further improve safety outcomes and the overall customer experience, particularly in the last steps of the delivery process"

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. While the timeline for widespread deployment remains uncertain, the acquisition positions Amazon to tackle what Bjelonic described as the hardest part of getting parcels to customer doors

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