A company where researchers gather. This is Sigma-i.

Knowledge on frontiers and needs on business edge.
Three "I" bridge these gaps. This is our mission.

About Sigma-i

Three "I" changes the world 
Your ideas
Various ideas emeging from researchers
Our eyes
Various perspectives on each project
and I
Business driven by characteristic researchers

Sigma-i raises $3.7 milion in Series A from SPARX Group Co., Ltd. to boost their business on quantum computing.

Sigma-i is pleased to announce the close of $4.6 milion Series A investment from SPARX Group Co., Ltd.. 
Sigma-i intends to use this round of fundraising to hire more team members to accelerate its business growth, enter more business partnerships, and further increase the pace at which society implements quantum annealing technology.

Sigma-i and D-Wave Announce Largest-Ever Quantum Cloud-Access Contract

Sigma-i Co. Ltd. and D-Wave Systems Inc. the leader in quantum computing systems software and services announced the companies have signed the largest-ever global quantum cloud contract.
Sigma-i will offer quantum consulting services and access to the D-Wave 2000Q™ family of systems via D-Wave’s quantum cloud service Leap™ to companies universities and research laboratories throughout Japan


Technology consulting on quantum annealing

How do you efficiently use the quantum annealing for optimizing your business?
We promote your business by professional support by our researchers.

Joint research on quantum annealing

We support your development for creating new business by use of professional skill on quantum annealing.

Related resaerch realms

We advise combination with new technology, which accelerates your business and utlize advanced technique driven by quantum annealing.


Cheif of Operation officer

Kentaro ISE

Founder, Researcher Leader

Masayuki OHZEKI

Co-founder, Researcher

Masamichi J. MIYAMA

Business Development Exective Officer

Shinichiro TAGUCHI


Tomoyuki Obuchi


Xu Yingying


Kouki Yonaga


Contact with us!
Business, Joint research, job offer