# Nobuyuki Idei

> Nobuyuki Idei is a seed investor at Quantum Leaps Corporation backing Information Technology. See 10 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Quantum Leaps Corporation](https://shizune.co/investors/profile/quantum-leaps-corporation)
- Location: Tokyo, Japan
- Total investments: 10
- Last investment: Jun 2021
- Lead investor: 10%
- Last updated: Aug 2026
- LinkedIn: http://jp.linkedin.com/in/nobuyukiidei
- X (Twitter): https://twitter.com/Nobuyuki_Idei
- Website: https://x.com/Nobuyuki_Idei
- Facebook: https://www.facebook.com/nobuyuki.idei

Nobuyuki Idei is a seed investor at Quantum Leaps Corporation in Tokyo focused on Information Technology and Manufacturing. Nobuyuki Idei has served as our independent director since June 2007.Being an experienced director, Nobuyuki Idei currently also serves as director of Accenture, director of FreeBit Co, Ltd., director of Lenovo Group, and chairman of the National Conference on Fostering Beautiful Forests in Japan.Nobuyuki Idei is the founder and chief executiveofficer of Quantum Leaps Corporation, a specialist consultancy that advises private and public institutions on the changing role of technology in the 21st century.Nobuyuki Idei is also the founder and chairman of the board of Asia Innovators’ Initiative, a private non-profit organization that he established in 2011 to serve as a catalyst for social innovation in Asia by bringing together a diverse range of individuals and promoting knowledge sharing.Nobuyuki Idei was chairman and chief executive officer of Sony Corporation from 2000 to 2005, chief corporate advisor from 2005 to 2007, and chairman of the advisory board from 2007 to 2012.Prior to that, Nobuyuki Idei held a range of leadership positions at Sony including general manager of the audio division, senior general manager of the home video group, and president and representative director.Nobuyuki Idei has also served in a number of other advisory positions including as counselor to the Bank of Japan, member of Japan’s national IT Strategy Council, and vice-chairman of Nippon Keidanren.Nobuyuki Idei received a bachelor of science degree in economics and politics from Waseda University in Tokyo.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $4.5M–$31M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Information Technology | 4 | 40% |
| Manufacturing | 3 | 30% |
| Internet | 2 | 20% |
| Artificial Intelligence | 2 | 20% |
| Apps | 1 | 10% |

28 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 3 | 30% |
| Corporate Round | 2 | 20% |
| Angel | 1 | 10% |
| Series D | 1 | 10% |
| Funding Round | 1 | 10% |

7 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Japan | 8 | 80% |
| France | 1 | 10% |
| United States | 1 | 10% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Stake Technologies | Stake Technologies is a technology company that provides blockchain solutions to enterprises. | $10M | Initial Coin Offering | Jun 11, 2021 |  |
| Pyrenee | Pyrenee provides traffic data collection and analysis in addition to developing, producing, and selling AI driving aids. The addition of an AI driving assistance system to existing vehicles. It improves safe driving and reduces traffic accidents as a capable driver's assistant. | $1.8M | Venture - Series Unknown | May 25, 2021 |  |
| WARPSPACE | ARPSPACE is a space startup originating from the University of Tsukuba, has been launching and working on a satellite development project at the University of Tsukuba for five years until the company was established. |  | Corporate Round | Jul 31, 2019 |  |
| Antescofo | Antescofo is the mariage of world-class R&D and Business endeavours. Their technology is the result of 7+ years of R&D in the world’s largest laboratory dedicated to Music and Technology, IRCAM in Paris, and public experience with the most important musicians and orchestras around the world. The principle? Through Intelligent MachineListening, they recognize how humans perform music in real-time and use that information to synchronize content and provide an immersive experience! Antescofo was incorporated in July 2016 and based in Paris, France. | $4.5M | Seed | Feb 18, 2019 |  |
| Japan Cloud Capital | Japan Cloud Capital is a financial services company that supports the growth of venture companies and develops the Japanese economy. The company was founded in 2015 and based in Tokyo, Japan. | $41.5M |  | May 18, 2018 |  |
| Aperza | Aperza's mission is to contribute to redesigning the manufacturing industry by eliminating three barriers in the industry which are the barrier of information, transaction and communication which most of companies and people often face in this industry.Manufacturing industry is Japanese core industry. We would like to contribute to therebirth of this industry by those activities such as supporting those companies who challenges the global market and supporting those start-ups who tries brand-new industry trend such as Industry 4.0, smart factory or IoT. We believe that this lead to the increase of the people in this industry, and the growth of the industry eventually. | $1.2M | Angel | Mar 21, 2017 |  |
| TableCheck | TableCheck empowers restaurant operators worldwide to maximize guest engagement, reservations, and table utilization.We analyze and evaluate data from restaurants and use this information to create a more vibrant dining experience for their customers.Our team of creative minds is continuously seeking to drive innovative solutions to support ourrestaurant partners. TableCheck’s restaurant management tools give restaurants the power and flexibility to provide seamless customer experiences for every guest from the moment they make reservations. " | $27.7M | Seed | Jul 08, 2015 |  |
| Fandom | Fandom is a developer of a global entertainment media platform designed to provide a home for fans to explore, contribute to, and celebrate the world of pop culture. The company's platform offers users fandom entertainment related to games, movies, television, anime, and fandom wikis, providing fans with a single source for pop culture news,discussions, and discovery. It is also the home of D&D Beyond, a direct-to-consumer service/product supporting the passionate community and players of Dungeons & Dragons. | $15M | Series D | Aug 27, 2014 |  |
| Terra Motors | Terra Motors is an electric car manufacturing company that utilizes IoT and digitally connecting EV mobility. They develop the global enterprise for global warming. SEED48 is the first electronic motorcycles that have brilliant functionality such as the highest speed(40km/h)and practicality(40km/1charge) Their products are provided at thefamous electronic retail stores, do-it-yourself stores, bicycle stores, car stores, and gas stations. They achieve a dominant share of the electronic motorcycles market.In 2011, They would mainly focus on the south east Asian market. | $30.6M | Seed | Oct 04, 2011 |  |
| FreeBit | FreeBit is a company offering comprehensive data, mobile, and computing management services to private and corporate clients. The company was founded in 2000 and is based in Shibuya, Kanagawa, Japan. | $26.5M | Corporate Round | Dec 27, 2005 |  |

10 of 10 investments shown.

## Co-investors
- [Altonomy](https://shizune.co/investors/profile/altonomy) — VC Fund, 1 deal together
- [Amazon](https://shizune.co/investors/profile/amazon) — VC Fund, 1 deal together
- [Asuka Asset Management](https://shizune.co/investors/profile/asuka-asset-management) — VC Fund, 1 deal together
- [AU21 Capital](https://shizune.co/investors/profile/au21-capital) — VC Fund, 1 deal together
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund, 1 deal together
- [Daphni](https://shizune.co/investors/profile/daphni) — VC Fund, 1 deal together

## About Quantum Leaps Corporation

VC Fund · Tokyo, Japan

Quantum Leaps Corporation Provides consulting programs to help create and execute new visions and strategies with a future perspective.

1 contacts available at Quantum Leaps Corporation.

| Name | Title | Profile |
| --- | --- | --- |
| Nobuyuki Idei | Founder & CEO | https://shizune.co/investors/profile/nobuyuki-idei |

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## FAQ

### What does Nobuyuki Idei invest in?

Nobuyuki Idei invests primarily in Information Technology, Manufacturing and Internet startups, most often at Seed and Corporate Round stage. Most of the 10 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Nobuyuki Idei's check size?

Nobuyuki Idei typically joins rounds of $4.5M–$31M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Nobuyuki Idei participates in.

### When did Nobuyuki Idei last invest?

The most recent investment recorded for Nobuyuki Idei closed in Jun 2021. Shizune tracks 10 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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