The world’s largest alternative asset manager is backing a South Korean motion-control specialist, on undisclosed terms, as its money keeps drifting toward physical AI.

Blackstone is buying into Futronic, a South Korean maker of the high-precision actuators that let machines move, in a wager that the least visible hardware in a robot is where the next returns will sit.

The firm did not disclose the size of the investment or the stake it is taking, saying only that the money is coming through its affiliated private equity funds.

Founded in 1993, Futronic builds actuators for motion control, the components that turn a control signal into precise mechanical movement.

Its customers have long been carmakers and industrial robotics firms, though the company has been steering toward emerging mobility, humanoid robots, and the kind of factory automation that investors have spent the past year chasing.

Actuators are the joints of any moving machine, and precision at that layer is what separates a robot that can grip an egg from one that crushes it.

That has made mechatronics suppliers unusually valuable to the humanoid supply chain, where the finished robots get the coverage but the parts that let them move are the harder engineering problem.

Jin-ho Ko, who started the company, stays on as chairman and chief executive after the transaction. Blackstone described the deal in the terms it tends to favour, backing a founder-led, family-owned business and giving it the scale to grow, with the founder still at the wheel.

The thesis is narrow and physical. Blackstone sees motion control as the bridge between AI models and the machines that act on their instructions, a piece of the humanoid robotics buildout that rarely makes headlines but sits underneath most of it.

Eugene Cook, who runs Blackstone’s private equity business in Korea, called Futronic “the very best of Korea’s mechatronics industry,” pointing to its research and engineering depth.

Kyungmin Song, a principal at the firm, put humanoid robotics and automation at the centre of the case for growth, the segments Futronic has been repositioning itself to serve.

The deal fits a pattern. Blackstone has been buying up suppliers of unglamorous but essential components, from electrical-grid parts to, now, the actuators inside robots, and it has more than $1.3 trillion under management to do it with.

That figure was a record when the firm reported its first quarter in April, and it edged higher again at its second-quarter results on 16 July.

Increasingly the money has been pointed at technology, from a lending consortium behind Anthropic’s chips to a consulting joint venture, Ode , built with the same AI company.

Korea has become a busy hunting ground for that kind of capital. Private equity has flowed steadily into the country’s robotics suppliers through 2026, on the theory that the components layer of the industry, rather than the finished robots, is where durable margins hide.

Local investors have not all agreed on the wisdom of it, with some warning that valuations in the sector have run ahead of demonstrated demand.

Blackstone’s move lands in the middle of that debate, on the side that says the underlying hardware is worth owning regardless of which robot company wins.

Futronic keeps operations in both South Korea and the United States, which gives Blackstone a supplier already straddling two of the markets where automation demand is climbing fastest.

The firm framed motion control as instrumental to bridging AI and the physical world, language that has become a fixture of its recent robotics pitches.

What Blackstone will pay, and how much of Futronic it will end up owning, remain unstated. The affiliated funds are the named vehicle; beyond that, the terms are private, and neither side put a number on the table.

For a company that spent three decades making the parts that move other things, the attention is new. The robots, as ever, need something to move them.

Cristian Dina is the CRO at The Next Web. He has interviewed 300+ industry leaders and authored the book King of Networking, establishing hi (show all) Cristian Dina is the CRO at The Next Web. He has interviewed 300+ industry leaders and authored the book King of Networking, establishing himself as one of the most connected and respected voices in the ecosystem. At just 23 years old, Cristian was included in the Forbes 30 Under 30 2025 list, representing a new generation of tech builders, bold thinkers who move fast, build with purpose, and create real impact.