Aldebaran Robotics
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Last reviewed
Jun 4, 2026
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v1 · 2,119 words
Add missing citations, update stale details, or suggest a clearer explanation.
Aldebaran Robotics, later known simply as Aldebaran, was a French robotics company founded in 2005 in Paris by entrepreneur Bruno Maisonnier. It was the first major French firm dedicated to humanoid robotics, and it became internationally known for two landmark humanoid robots: NAO, a small programmable humanoid widely used in education and research, and Pepper, a wheeled social robot designed to read and respond to human emotion. The company changed hands and names several times over its life: it was acquired by Japan's SoftBank Group in 2012, rebranded as SoftBank Robotics Europe in 2016, sold to Germany's United Robotics Group in 2022 (when it reverted to the Aldebaran name), and finally placed in judicial liquidation by the Paris Commercial Court on June 2, 2025. The company name is taken from Aldebaran, the brightest star in the constellation Taurus, and is unrelated to other uses of that word.
Aldebaran Robotics was founded in 2005 in Paris by Bruno Maisonnier, a former banking executive who had been interested in personal robotics since the 1980s. The company set out to build an affordable, programmable humanoid robot for research, education and eventually the consumer market, a goal that was unusual at a time when most humanoid robotics work happened inside large corporate or academic labs such as Honda's ASIMO program. Development of the flagship robot, NAO, began under the internal name Project NAO around 2004, and the first prototypes were shown publicly in 2006.
The company opened offices outside France, including operations in China and the United States, and positioned itself as a "worldwide leader in humanoid robotics." Maisonnier served as chairman and chief executive through the company's independent period.
Aldebaran was backed by a mix of French and international venture investors before the SoftBank era. In June 2011 the company raised about US$13 million in a Series C round led by Intel Capital, with participation from existing backers including CDC Innovation, iSource and Crédit Agricole Private Equity. These investors were later bought out when SoftBank took control.
| Date | Event | Amount / detail |
|---|---|---|
| June 2011 | Series C round | ~US$13 million, led by Intel Capital |
| March 2012 | SoftBank acquires majority stake | ~US$100 million for >80%, plus ~US$40-50 million further investment |
| February 2015 | SoftBank raises stake | to ~95% after buying Bruno Maisonnier's remaining shares |
NAO is a roughly 58 cm (about 23 inch), 5 kg autonomous humanoid robot. It became Aldebaran's signature product and one of the most widely deployed research and education robots in the world. The Academics Edition was released to universities and laboratories in 2008 and made more broadly available by 2011. By the company's own later figures, NAO was used in hundreds of universities, schools and research labs, often cited as more than 600 institutions.
In 2008 NAO was chosen as the platform for the RoboCup Standard Platform League, the robot soccer competition in which every team uses an identical robot and competes purely on software. NAO replaced Sony's AIBO robot dog in that role and went on to be used by SPL teams for many years, which made it a fixture of academic robotics research in perception, locomotion and multi-agent coordination. Aldebaran also promoted NAO for special education, including the ASK NAO (Autism Solution for Kids) initiative aimed at helping children with autism. Detailed specifications and version history are covered on the dedicated NAO robot page.
In March 2012 SoftBank Group, the Japanese telecommunications and investment conglomerate led by Masayoshi Son, acquired a majority stake of more than 80 percent in Aldebaran Robotics for a price reported at around US$100 million, with a commitment to invest a further US$40 million to US$50 million to accelerate development. The deal bought out the company's earlier venture investors. SoftBank's backing gave Aldebaran the resources to pursue a far more ambitious consumer robot, which became Pepper.
On February 23, 2015, SoftBank announced that it had increased its stake to about 95 percent by purchasing Maisonnier's remaining shares, and that Maisonnier would step down as CEO. He was replaced, effective March 4, 2015, by Fumihide Tomizawa, who had been president of SoftBank Robotics since August 2014. Maisonnier became a special advisor to Masayoshi Son and SoftBank Robotics. He later went on to found AnotherBrain, an edge-AI startup. In explaining his departure, Maisonnier said he had "sold my shares in order for Aldebaran to become a new entity which will go much farther with SoftBank."
Pepper, a roughly 120 cm tall wheeled humanoid built to recognize faces and basic human emotions, was unveiled in Tokyo on June 5, 2014 by Masayoshi Son as a joint project between SoftBank Mobile and Aldebaran. It was marketed as the world's first personal robot designed to read emotions, using cameras and microphones feeding an "emotion engine" that estimated mood from facial expressions and tone of voice. Pepper went on sale to Japanese consumers in February 2015 at a base price of 198,000 yen plus subscription fees, and the robot was manufactured by the Taiwanese contract manufacturer Foxconn. Pepper found its main use as a greeter and brand ambassador in shops, banks, airports, hotels and other commercial settings rather than in homes. Full details are on the Pepper page.
On May 19, 2016, SoftBank rebranded Aldebaran's regional operations under the SoftBank Robotics name as part of a push to unify its robotics businesses. Aldebaran (France) became SoftBank Robotics Europe, Aldebaran (U.S.) became SoftBank Robotics America, and Aldebaran (China) became SoftBank Robotics China. These sat under SoftBank Robotics Holdings, a Tokyo-based intermediate holding company for the group's robotics activities. The French entity in Paris, SoftBank Robotics Europe, remained the engineering home of NAO and Pepper. The broader SoftBank Robotics group is covered on its own page.
SoftBank's robotics ambitions cooled toward the end of the decade. Pepper production was halted around 2020 to 2021 as the consumer and commercial robot business failed to reach the scale SoftBank had hoped for, and by late 2021 SoftBank was reported to be seeking a buyer for SoftBank Robotics Europe.
In April 2022 SoftBank reached an agreement to sell SoftBank Robotics Europe to United Robotics Group (URG), a German robotics holding company backed by RAG-Stiftung. The transaction, for an undisclosed sum, gave SoftBank a minority stake in URG and made SoftBank the master distributor for Pepper and NAO in Japan and parts of Asia. The deal closed in 2022, and on September 20, 2022 the Paris company announced that it was reverting to its original name, Aldebaran, as one of several robotics brands operating under the URG umbrella.
Under URG, Aldebaran continued to sell and support NAO and Pepper and contributed its social-robotics heritage to new products. In November 2022 URG launched Plato, a service "cobiot" (collaborative robot) aimed at the hospitality and food-service industries; Plato was designed in Paris and manufactured in France, and URG marketed it as drawing on Aldebaran's experience with Pepper and NAO.
Aldebaran never reached sustained profitability under any of its owners. It had laid off about half of its staff around the 2022 acquisition. In August 2024, according to reporting, United Robotics Group decided to stop funding Aldebaran, shifting its focus toward distributing a new range of products sourced from China. Without that backing the company's situation deteriorated quickly.
In January 2025 Aldebaran entered a safeguard procedure, and in February 2025 it was placed in "redressement judiciaire" (judicial reorganization, a form of court-supervised receivership) and filed for bankruptcy, after which it cut much of its remaining workforce while searching for a buyer. Two rescue offers were submitted, reportedly from Franco-Swiss entrepreneur Jean-Marie Van Appelghem and Canadian investor Malik Bachouchi, but the Paris Commercial Court did not accept either, citing insufficient financial guarantees and unclear commitments to retain staff. On June 2, 2025 the court ordered the company's judicial liquidation, ending Aldebaran's roughly twenty-year run. About 106 employees, mostly robotics engineers and technicians, were dismissed, and the company's remaining assets, including stocks of NAO robots, patents and tooling, were slated to be sold off at values experts described as low.
Reporting around the liquidation noted that Aldebaran had said it sold roughly 20,000 NAO robots and 17,000 Pepper units across about 70 countries over its lifetime, and that well over half a billion euros had been invested in the company across two decades without it becoming profitable. French press described it as the end of a "French Tech" icon and a symbol of the difficulty European hardware-robotics firms faced in scaling humanoid products into a sustainable business.
| Robot | Type | Height | Introduced | Notes |
|---|---|---|---|---|
| NAO | Small programmable humanoid | ~58 cm | 2008 (Academics Edition) | RoboCup Standard Platform League robot; education and research; ASK NAO autism program |
| Pepper | Wheeled social/emotional humanoid | ~120 cm | 2014 | Emotion-reading greeter and brand ambassador; built with SoftBank; manufactured by Foxconn |
| Romeo | Larger humanoid research prototype | ~140 cm | early 2010s | Research project aimed at assistance for elderly and dependent people; never a mass product |
| Plato (under URG) | Service "cobiot" mobile robot | n/a | 2022 | Hospitality delivery robot launched by United Robotics Group, drawing on Aldebaran heritage |
Aldebaran also developed and distributed the software stack used to program its robots, most notably the NAOqi operating system and the Choregraphe visual programming environment, which let educators and researchers script the robots' behaviors without low-level coding.
| Period | Name | Owner |
|---|---|---|
| 2005-2012 | Aldebaran Robotics | Independent (VC-backed) |
| 2012-2016 | Aldebaran Robotics | SoftBank Group (majority, then ~95%) |
| 2016-2022 | SoftBank Robotics Europe | SoftBank Group |
| 2022-2025 | Aldebaran | United Robotics Group |
| June 2025 | (liquidated) | Paris Commercial Court |
Despite its commercial failure, Aldebaran is widely credited with popularizing accessible humanoid robots. NAO in particular became a standard teaching and research platform in robotics and artificial intelligence courses worldwide and the long-running robot of choice for the RoboCup Standard Platform League, while Pepper was one of the most recognizable consumer-facing humanoids of the 2010s. The company's rise and fall is often cited in discussions of how hard it has been for European humanoid-robot makers to compete with better-funded efforts in the United States and China during the later humanoid robot boom led by firms such as Tesla, Figure AI, Boston Dynamics and Unitree.
SoftBank Robotics , NAO , Pepper , humanoid robot , social robot , robotics , ASIMO