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SoftBank's $200M Buys A Retrofit Kit, Not A New Excavator

Gravis Robotics is worth $1 billion for bolting autonomy onto machines contractors already own. The capital in construction robotics is going to the aftermarket, not the assembly line.

The Investor · Invest desk

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Photograph accompanying SoftBank's $200M Buys A Retrofit Kit, Not A New Excavator
Photo: techfundingnews.com

What happened

  • SoftBank has invested $200 million in Gravis Robotics, valuing the Zurich-based startup at $1 billion.
  • Gravis fits autonomy kits onto excavators and other heavy machinery instead of building new equipment from scratch.
  • Gravis was founded in 2022 as a spinout from ETH Zurich by Ryan Luke Johns (CEO) and Dominic Jud (CTO), who met in Marco Hutter's robotics lab; Hutter is now also a co-founder and board member, and the company employs about 75 people.
  • The Gravis Rack combines sensors, computing and software into a kit that attaches to existing excavators and heavy machinery, and works with over a dozen brands and models, from 10-ton machines to larger Caterpillar equipment.
  • Gravis says the Rack has been installed on brands including Caterpillar, Case, Develon, John Deere, JCB, Hitachi, Sumitomo, Yanmar and Volvo, without custom reprogramming per machine.

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Why it matters

SoftBank has put $200 million into Gravis Robotics at a $1 billion valuation, and the Zurich company it bought into does not build excavators [1]. It fits autonomy kits onto machines contractors already own, which is where the money in this sector has been going [2].

Gravis was spun out of ETH Zurich in 2022 by Ryan Luke Johns and Dominic Jud, who met in Marco Hutter's robotics lab; Hutter is now a co-founder and board member, and the company employs about 75 people [3]. Its product, the Gravis Rack, packages sensors, compute and software into a kit that attaches to existing heavy machinery and works across more than a dozen brands and models, from 10-ton machines up to larger Caterpillar equipment [4]. Gravis says the Rack has been installed on Caterpillar, Case, Develon, John Deere, JCB, Hitachi, Sumitomo, Yanmar and Volvo machines without custom reprogramming for each one, and that roughly two-thirds of global heavy-equipment demand sits outside the top three manufacturers [5][6]. About 70% of its machines are used for digging, and operators can switch between manual and autonomous modes [7]. The company says the technology is in use in seven countries, with customers including Holcim, Taylor Woodrow and HD Hyundai [8].

The financing tells you how fast the repricing happened. This is the second round in under a year: a $23 million round in November 2025 co-led by IQ Capital and Zacua Ventures, with Pear VC, Sunna Ventures, Armada Investment and Holcim participating [9]. Total disclosed funding is now about $223 million [10], meaning SoftBank's single check accounts for roughly 90% of everything Gravis has raised [11]. Gravis calls it the largest Series A in construction robotics to date [12], and says the round is nearly double the amount first discussed [13]. On what was first discussed, the source reporting is not internally consistent: Tech Funding News summarises its own July story as SoftBank considering an acquisition for less than $500 million, while the body of the same piece says possibly more than $500 million, citing sources cited by Bloomberg [14][15].

The competitive set is also funded. Bedrock Robotics, founded by former Waymo engineers, raised $270 million in February at a $1.75 billion valuation and plans to launch fully operator-less excavators this year [16]. Built Robotics also sells a retrofit kit, Teleo is building single-operator control of multiple machines, and Caterpillar sells its own autonomous excavators, loaders, dozers, haul trucks and compactors [17]. Between Gravis and Bedrock alone, that is roughly $493 million in disclosed capital chasing autonomy on earthmoving iron [18].

The demand case rests on a productivity gap. McKinsey put global construction output at about $13 trillion in 2023 while construction productivity grew only 10% from 2000 to 2022 against manufacturing's 90% [19], a nine-fold difference in improvement [20]. The US will need 349,000 more construction workers in 2026 to meet demand [21].

Watch three things. Whether Bedrock ships operator-less excavators this year, since Gravis still keeps a human in the seat with a mode switch [16][7]. Whether the 70% digging concentration broadens into other tasks [7]. And whether Gravis ends up inside Robo HD, the vehicle into which SoftBank has already combined about 20 robotics companies including Skild AI, Agile Robots and AutoStore, alongside its $5.4 billion purchase of ABB's industrial robotics division [22] - a price 27 times the Gravis check [23].

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