Lee Jung-ho (이정호) is a South Korean robotics engineer and the co-founder and chief executive officer of Rainbow Robotics, the South Korean humanoid-robotics company headquartered in Daejeon. He earned his doctorate in robotics at the Korea Advanced Institute of Science and Technology (KAIST), where he was a member of the HUBO Lab research team that developed the DRC-HUBO+ platform that won the 2015 DARPA Robotics Challenge. Lee co-founded Rainbow Robotics in February 2011 with KAIST mechanical-engineering professor Oh Jun-ho and led the company through its KOSDAQ listing in 2021 and the Samsung Electronics strategic-investment phase that brought Samsung's stake to approximately 35% by late 2024.
At a glance
- Education: PhD in Robotics, KAIST, Daejeon.
- Current role: Chief Executive Officer of Rainbow Robotics, 2011 to present.
- Notable prior affiliations: Researcher, KAIST HUBO Lab and Humanoid Robot Research Center, Department of Mechanical Engineering, KAIST; member of Team KAIST for the 2015 DARPA Robotics Challenge.
- Key contributions: Co-founder of Rainbow Robotics (February 2011); operational leader through the company's KOSDAQ listing (2021, ticker 277810) and the Samsung Electronics strategic-investment phase; lead executive on the RB cobot product line, the DRC-HUBO+ research-platform commercialisation, the RB-Y1 wheeled-biped humanoid (2024), and the broader Rainbow Robotics product portfolio.
- Recognition: Selected as a next-generation technology leader by the National Academy of Engineering of Korea; recipient of the 2 Million Dollar Export Tower Award at the 60th Trade Day commemoration ceremony in Daejeon.
- LinkedIn: jungho-lee-380319108
Origins
Lee earned his PhD in robotics at KAIST in Daejeon, where he became a member of the HUBO Laboratory and the Humanoid Robot Research Center in the Department of Mechanical Engineering under Oh Jun-ho. The HUBO Lab during Lee's tenure was the primary anchor for Korean academic-humanoid-robotics research, with the HUBO platform lineage spanning KHR-0 (2001) through HUBO 2 Plus (2011) and subsequently DRC-HUBO+ (2015). The KAIST research-and-engineering culture under Oh's leadership shaped Lee's technical foundation and the eventual Rainbow Robotics product-development approach.
The KAIST HUBO Lab research community produced a substantial portion of the senior engineering talent in the South Korean robotics industry through the 2000s and 2010s. Lee's tenure in the lab gave him direct exposure to the multi-generation HUBO platform-development cycle, the international robotics-research competitive landscape that culminated in the DARPA Robotics Challenge, and the engineering-and-design discipline required to translate research-platform capability into commercial product.
Career
Lee co-founded Rainbow Robotics on February 10, 2011 with Oh Jun-ho and the KAIST HUBO Lab research team, as a commercial spinout to productise the HUBO platform technology beyond the academic-research customer base. The founding strategic framing was the commercialisation of the HUBO drivers, controllers, sensors, and broader mechatronic capability into a diversified product portfolio spanning research-humanoid platforms, industrial cobot platforms, and emerging humanoid-product applications.
The company's product portfolio under Lee's leadership through the 2010s spanned three primary categories. The HUBO research-platform lineage (HUBO 2, HUBO 3, and DRC-HUBO+ variants) was sold to academic robotics-research labs globally, anchored by the international brand-recognition that the 2015 DARPA Robotics Challenge victory had produced. The RB cobot product line (multiple payload variants) competed with Universal Robots, KUKA, FANUC, and ABB in the industrial-automation cobot category. Selected smaller-form-factor educational and developer platforms extended the portfolio into adjacent customer segments.
Lee led the company through its KOSDAQ initial public offering in 2021, listing under ticker 277810 on the Korea Exchange's KOSDAQ market. The public-company status made Rainbow Robotics one of the few publicly-traded dedicated humanoid-robotics companies globally and produced detailed public-disclosure visibility on the company's revenue, R&D investment, and operational metrics. The KOSDAQ listing also provided a public-market valuation reference point that has been substantially volatile, with share-price movement driven heavily by speculation about Samsung's strategic intentions and broader humanoid-robotics-sector sentiment.
The Samsung Electronics relationship began in January 2024 when Samsung acquired approximately a 14.8% stake in Rainbow Robotics through staged share purchases. Samsung increased the stake through 2024 to approximately 35% by late 2024 by exercising a call option, taking effective control through both shareholding and board representation, and converting Rainbow Robotics into a Samsung subsidiary. Under Lee's continuing chief executive leadership, the company has positioned itself as the centrepiece of Samsung's humanoid-robotics strategy and as the South Korean cohort's primary humanoid-robotics company.
Lee unveiled the RB-Y1 wheeled-biped humanoid platform in 2024, the company's most recent humanoid product targeted at emerging humanoid-product applications. He has continued to lead the company through the post-Samsung-acquisition phase into 2025 and 2026, with the central operational question being the depth of integration between Rainbow Robotics's product portfolio and Samsung's broader consumer-electronics and enterprise product lines.
Affiliations
- KAIST HUBO Laboratory and Humanoid Robot Research Center: Doctoral researcher; member of Team KAIST for the 2015 DARPA Robotics Challenge.
- Rainbow Robotics: Co-founder and Chief Executive Officer, February 2011 to present.
Notable contributions
- Rainbow Robotics co-founding (February 2011). Co-founded the South Korean humanoid-robotics company as a commercial spinout of the KAIST HUBO Lab, and has led the company as chief executive officer continuously since founding.
- DRC-HUBO+ commercialisation and 2015 DARPA Robotics Challenge support. Operational leadership for the Rainbow Robotics-supplied platform components that Team KAIST used in the 2015 DARPA Robotics Challenge Finals victory.
- KOSDAQ listing (2021). Led the company through the initial public offering on the Korea Exchange's KOSDAQ market, ticker 277810, establishing Rainbow Robotics as one of the few publicly-traded dedicated humanoid-robotics companies globally.
- Samsung Electronics strategic-investment phase (January 2024 onward). Operational leader through Samsung's staged share-acquisition process from a 14.8% initial stake to approximately 35% controlling stake by late 2024, including the exercise of a call option that converted Rainbow Robotics into a Samsung subsidiary.
- RB cobot product line. Lead executive on the multi-variant industrial cobot platform that has been the company's primary recurring-revenue stream.
- RB-Y1 wheeled-biped humanoid (2024). Lead executive on the company's most-recent humanoid product, the wheeled-biped platform targeted at emerging humanoid-product applications.
- Recognition. Selected as a next-generation technology leader by the National Academy of Engineering of Korea; 2 Million Dollar Export Tower Award at the 60th Trade Day commemoration ceremony in Daejeon.
Open questions
- Samsung-strategic-relationship operational depth. Samsung Electronics has been the controlling shareholder since late 2024, but the operational depth of the strategic relationship has been less publicly itemised. Whether Lee's continuing chief executive role produces named Samsung-customer deployments, Samsung-product integrations, or Samsung-manufacturing partnerships will define the company's competitive standing.
- RB-Y1 production deployment and customer pipeline. The wheeled-biped RB-Y1 platform is Lee's most-recent humanoid-product launch. Named customer announcements and production-volume disclosures will clarify the platform's competitive position against the Chinese cluster leaders and the leading US humanoid cohort.
- AI-foundation-model integration strategy. Rainbow Robotics has historically emphasised mechanical-and-control-engineering capability more than AI-foundation-model integration. Whether Lee's leadership produces partnerships with leading AI labs, the development of in-house AI-foundation-model capability, or strategic-acquisition activity in the AI domain, will be informative for the long-term competitive trajectory.
- Continued operational independence under Samsung control. Samsung's controlling stake produces direct representation on the Rainbow Robotics board and integration with Samsung's broader corporate strategy. Whether Lee's chief executive role retains operational independence at the previous level, and whether the founding KAIST team's cultural-and-strategic priorities are preserved in the Samsung integration, is a watchable question.
Sources
- Rainbow Robotics official website. Company history, product line, and corporate information.
- Rainbow Robotics Wikipedia entry. Founding date and company history.
- Jung Ho Lee Bloomberg profile. CEO biography and corporate role reference.
- Samsung Electronics To Become Largest Shareholder in Rainbow Robotics. Samsung Newsroom announcement of the controlling-stake acquisition.
- Samsung pays $181M to become largest shareholder of Rainbow Robotics. TechCrunch coverage of the late-2024 Samsung stake increase to approximately 35%.
- Rainbow Robotics CEO bets big on robot use across multiple industries. The Korea Herald interview with Lee covering his strategic priorities for the company.
- Companion profile: Rainbow Robotics for the broader lab context, and Oh Jun-ho for the long-running KAIST HUBO Lab co-founder collaboration.
