How much funding has Fulldepth Co. raised?

Fulldepth Co. has raised $6.3M in total funding, most recently a Series D round.

When was Fulldepth Co. founded?

Fulldepth Co. was founded in 2014.

Where is Fulldepth Co. headquartered?

Fulldepth Co. is headquartered in Tokyo, Japan.

What industry is Fulldepth Co. in?

Fulldepth Co. operates in Defense Tech.

How many employees does Fulldepth Co. have?

Fulldepth Co. has 51-200 employees.

Fulldepth Co.

Q: Who are Fulldepth Co.'s investors?

Fulldepth Co.'s investors include Drone Fund, Aozora Corporate Investment, Beyond Next Ventures.

Expanding human activity into the deep sea

Tokyo, Japan · Founded 2014 · $6.3M raised

Defense Tech

Headquarters: Tokyo
Employees: 51–200
Founded: 2014
Business Model: B2B

Website: fulldepth.co.jp
Total Funding: $6.3M
Last Round: $6.3M Series DDec 2025
Rounds: 1

About

FullDepth Co., Ltd. is a Japanese underwater robotics company that designs, manufactures, and operates remotely operated vehicles (ROVs) for deep-sea exploration, inspection, and survey work. The company's flagship product, the DiveUnit300, can operate at depths of up to 300 meters and carries a payload of up to 25 kg with a built-in camera, while the Tripod Finder system can reach depths of 1,000 meters. FullDepth's ROVs serve use cases including biological surveys, coral reef assessment, dam inspection, culvert surveys, and underwater infrastructure inspection. Founded in June 2014 and headquartered in Tokyo (with operations in Tsukuba), the company has raised $63.8M in total funding across multiple rounds including a Series D in December 2025.

Summary

Fulldepth Co. is a Defense Tech company based in Tokyo, Japan, founded in 2014. It has raised $6.3M in total across 1 round, most recently a $6.3M Series D round in Dec 2025. Investors include Drone Fund, Aozora Corporate Investment and Beyond Next Ventures.

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