Weather-independent underwater logistics infrastructure.
The Problems We Face
No matter how far technology advances, the movement of people and goods is unavoidable. In fact, demand continues to grow. Yet this domain still harbors deep-rooted challenges. ROBUNC confronts the following problems.
Weather Dependency
The movement of people and goods is heavily affected by weather. This dependency is not mere inconvenience — for those in rural areas and on islands, it is a matter of livelihood, and even life itself.
Supply Chain Fragility
Today's highly optimized logistics networks are rapidly amplifying the scale and speed at which localized, sudden disruptions propagate through the entire system.
Labor Shortage
Primarily in developed nations, workforce shortages and labor reforms are intensifying, casting doubt on the sustainability of current transport services.
Rising Extreme Weather
Climate change is driving more frequent extreme weather events worldwide. Combined with the increasing complexity of modern civilization, the scale of natural disaster damage continues to grow.
The Physical Phenomenon We Focus On
Atmospheric energy is largely contained at the boundary with water.
Due to the large density difference between water and air, atmospheric energy tends to remain near the boundary surface.
Energy that does enter the water decays exponentially with depth.
The fluid-dynamic properties of water cause kinetic energy to diminish exponentially in the vertical direction.
In other words, the effects of weather above diminish drastically with depth — even when storms rage on the surface, the water below remains calm.
Our Solution
Autonomous Underwater Vehicles (AUVs) for subsea transport — enabling non-stop transit through calm underwater corridors, regardless of surface conditions.
Autonomous Navigation System
Fully autonomous navigation through integration of advanced AI and high-performance sensors, requiring no human or mothership intervention
Swarm Navigation
GPS-independent, scalable operations through swarm coordination systems
Transport-Optimized Vehicle
High-speed, long-range, high-capacity AUVs purpose-built for subsea transport
Sea-to-Shore Platform
Relocatable, disaster-resilient, fully unmanned loading and docking platform
Vision & Mission
Vision
Enriching Life. Enriching Economy.
Mission
Create a world where everyone can thrive wherever they choose to be.
Founder
Sekito Shinjo
Representative Director and CEO
I want to protect what makes life truly rich.
People leave places blessed with beautiful nature and warm communities — simply because life there is inconvenient. I wanted to change that reality.
I aim to build a world where everyone can live where they choose, enriched both in spirit and in livelihood.
What caught my attention was the untapped potential of the subsea environment. Not a temporary workaround, but fundamental infrastructure that frees people from the constraints of weather.
Background
Born in Okinawa, Japan. Graduated from the University of Tokyo, Faculty of Engineering, majoring in Computer Science. Selected as a semifinalist at Tokyo Startup Gateway 2023 with the idea that led to founding ROBUNC. Gained experience as an intern at two tech startups during university. After graduation, studied robotics and cybersecurity through the AI+X Research program in collaboration with MIT before founding ROBUNC Inc.
Company Information
| Company Name | ROBUNC Inc. |
| Representative | Sekito Shinjo / Representative Director and CEO |
| Location | Shibuya, Tokyo, Japan |
| Founded | January 2026 |