Light bulb make your house smart.


This movie producued by Makers Boot Camp

stak is an IoT device that makes it easy for you to smart your home.

As far as the Internet is concerned, there is no installation or construction of large equipment.
Just replace the existing light bulb and install the application.
House electric appliances such as room electricity, air conditioner, TV can be operated from anywhere.


  • marketmarket

Company Profile

Name stak Inc.
Address Hiroshima City Higashi-ku Ushitahonmachi 1-9-16-202
Telephone +81-82-962-3226
Establishment 2019
Capital JPY 5,000,000
Employee 2
Branch Office
Category IoT


Ueda Shinichiro


University graduation

Born in Hiroshima Prefecture in 1981.
Enrolled in Chuo University.
After graduating, joined TKP Corporation(
President of subsidiary, launching new business, launching Shanghai base, etc.
And in 2014 Needol (Needle) was founded.
While becoming familiar with IT and high-tech technologies and seeking to become a next-generation infrastructure, it leads to the idea of ​​a function-extended IoT device ""stak"".
I decided to plan and develop stak and be responsible for the future development.

Hiraoka Ayana


Junior College Graduation

Born in Hiroshima Prefecture in 1991.
After graduating from junior college, I worked for 7 years in dentistry.
The next day after retirement, I meet with stak's representative.
I am attracted to stak and decided to join the company.

Share holders

Name Share Relation
Ueda Shinichiro 100 % CEO


Date Round Amount Investors
February, 2014 Angel