# Sealien

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sealien

- Industry: Industrial Machinery
- Headquarters: Guangzhou, China
- Website: www.sealien.net
- Total disclosed funding: $74M
- Latest round: Series A (Aug 13, 2026)
- Investors on record: 12

## About

Based in Guangdong, China and founded in 2023, Sealien Robotics Co., Ltd., trading as Sealien, is a robotics company that focuses on the development and manufacture of marine intelligent equipment and deep-sea robots. Its founder Eamon Ma is a graduate from Harbin Engineering University and has over 15-year experiences in marine engineering design and development. In August 2026, the company raised over CNY 500 million in a Series A funding round.
Sealien provides deep-sea working robots, submarine cable laying robots, surface deck inspection robots, ROV marine survey equipment assisted by unmanned surface vessels, etc. Its 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.
The company generates revenue from the sale of subsea robotic systems, work-class ROVs and trenchers, supplying components, and related engineering and maintenance services.
The company plans to deploy the world's first commercially available fully autonomous seabed cluster in 2029, achieving large-scale unmanned operation in deep-sea oil and gas field scenarios.

## Funding rounds

- Series A, Aug 13, 2026, $74M — Cathay Capital, Fortune Capital, ECC Capital, China Insurance Investment Fund, Addor Capital, Zhengxuan Capital, Seas Capital, Cloud Capital, CETC Investment Holding Co.,Ltd., Luminous Ventures, Xction Capital, Jiyuan Capital
- Series A, Mar 6, 2026 — Luminous Ventures
- Series A, Oct 20, 2025 — Seas Capital

## Investors

- Seas Capital (https://capitalatlas.ai/funds/seas-capital) — Series A
- Luminous Ventures — Series A
- Cathay Capital — Series A
- Fortune Capital — Series A
- ECC Capital (https://capitalatlas.ai/funds/ecc-capital) — Series A
- China Insurance Investment Fund (https://capitalatlas.ai/funds/china-insurance-investment-fund) — Series A
- Addor Capital (https://capitalatlas.ai/funds/addor-capital) — Series A
- Zhengxuan Capital (https://capitalatlas.ai/funds/zhengxuan-capital) — Series A
- Cloud Capital — Series A
- CETC Investment Holding Co.,Ltd. — Series A
- Xction Capital (https://capitalatlas.ai/funds/xction-capital) — Series A
- Jiyuan Capital (https://capitalatlas.ai/funds/jiyuan-capital) — Series A