We are creating the future of energy — with you.

We are Acario.


Acario was established by Tokyo Gas to fuel innovation and investment within startups focused on the new energy economy and sustainability sectors. We are dedicated to using our time and our investments to help companies looking to make a difference.


Focused on the intersection of energy innovation and commercialization of early-stage products, our team has had the opportunity to partner with a number of dedicated, innovative companies through our work at Acario and at Tokyo Gas . We’re always on the lookout for new investments and new partnerships.

Learn more about our work and our partners

Decarbonization & Hydrogen

New Energy Services (EaaS)

Digital Transformation