WHO WE ARE
WHO WE ARE

Sealien Robotics is a high-tech company dedicated to subsea robotics and intelligence, committed to advancing how the deep sea is explored, accessed, and developed.Built on fully integrated, in-house engineering, we develop advanced subsea robotic systems for high-value offshore applications, including oil and gas, subsea telecommunications, offshore wind, deep-sea mining, and etc. Our technologies have been commercially validated by leading clients worldwide with proven real-world deployments, and are gaining traction in international markets, reflecting a growing global footprint.

Our product architecture is built on a platform-based portfolio of free-flying and heavy-duty subsea robotic systems, developed to perform reliably in complex deepwater environments. These platforms address a wide spectrum of operational needs, from precision intervention to high-load subsea tasks, providing both adaptability and consistency across applications.

At the core of our capability is a fully integrated engineering framework spanning mechanical, electrical, hydraulic, control, and intelligent systems. From core technologies and critical subsystems through to complete vehicle integration, we maintain end-to-end R&D and engineering capabilities, forming a cohesive and differentiated technical foundation for subsea robotics.

Building on this foundation, we are advancing subsea embodied intelligence and multi-agent collaborative operations, enabling a measured transition from human-operated systems to intelligent and autonomous subsea robotics. Through these efforts, we seek to extend the boundaries of access, understanding, and sustainable utilization of the deep ocean.

Reaching deeper waters, with stronger intelligence.


Investors 

GGV Capital, Lightspeed China,ECC Capital,BYD Group,Shenzhen HTI Fund,Guangzhou Financail Fund,Seas Capital,etc



2023
Under operation since
500
+
Intellectual properties
& Certificates & Standards
and Codes
400
+
Standards and regulations covering
all aspects of work
development development
Offshore windfarm cable repair in Xuwen, Zhanjiang Province
2024.05
Offshore windfarm cable repair in Xuwen, Zhanjiang Province
Offshore windfarm cable burying in western Guangdong Province
2024.08
Offshore windfarm cable burying in western Guangdong Province
Light Work-Class ROV: Sea trial in the Middle East
2025.10
Light Work-Class ROV: Sea trial in the Middle East
Phoenix 600HP Trenching ROV: A milestone delivery
2025.12
Phoenix 600HP Trenching ROV: A milestone delivery
Representative
development
development

2024.05

2024.08

2025.10

2025.12

Our Patents
Our Patents

SEALIEN boasts the most extensive portfolio of intellectual property in deep-sea equipment across China, with over 30% of our patents classified as 

high-value invention patents, highlighting our strong R&D and innovation capabilities. We also maintain a broad range of copyrights in software design and control systems. All these assets ensure full autonomy over our core technologies, driving sustained technological leadership.


250+

Intellectual properties

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 Our Qualifications
Our Qualifications

Official Member of IMCA; obtained the ISO9001 QMS, ISO45001 OHSMS, ISO14001 EMS certificates

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Our Awards

SEALIEN has been successfully granted the High-tech Enterprise Qualification, obtained the title of Greater Bay Area New Quality Productive Forces Innovative Enterprise, and won an award of the high-end equipment manufacturing industry. 


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Contact Us to Start Your Journey
Contact Us to Start Your Journey

SEALIEN leads the cutting-edge technology of subsea robotics in China. Seeking customized subsea equipment solutions or professional technical consultation? Contact our team to discuss your project.