# Daisuke Dan Nagayama

> Daisuke Dan Nagayama is a startup investor at C1X (Tokyo). See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [C1X](https://shizune.co/investors/profile/c1x)
- Location: Tokyo, Japan
- Last updated: Aug 2026
- LinkedIn: https://jp.linkedin.com/pub/daisuke-daniel-nagayama-ph-d/29/b79/526
- X (Twitter): http://twitter.com/daisukenagayama
- Website: https://www.daisukenagayama.com/
- Facebook: https://web.facebook.com/daisuke.nagayama

Daisuke Dan Nagayama is a startup investor at C1X in Tokyo. Co-Founder & Chief Operating Officer of C1X.

## About C1X

VC Fund · Fremont, United States

C1X is a full-stack, full transparent premium adtech and martech platform for brands, advertising agencies, premium publishers, and eCommerce Platforms. The company also provides the ideal set of tools and technologies in an integrated, intuitive user interface that allows for advertisers and marketers to find the audiences and premium inventorythat they want to buy, transact on the platform in an efficient manner, and receive actionable insights that can be put to use immediately to increase the performance of the advertising/marketing campaign.C1X features that allow for other intelligent transaction methods that allow for buyers to purchase the exact audiences that they want to purchase on premium sites and publishers to maximize their monetization through the full-stack yield maximization solution that C1X provides. It also offers features that are tailored specifically towards eCommerce marketplaces and merchants, with a fully-automated native eCommerce ad server suite that allows for marketplace operators to create a new, steady flow of significant advertising revenue, and for merchants to increase their revenue through data-driven promotion of their own products and services.

3 contacts available at C1X.

| Name | Title | Profile |
| --- | --- | --- |
| Daisuke Dan Nagayama | Co-Founder & Chief Operating Officer | https://shizune.co/investors/profile/daisuke-dan-nagayama |
| Mukundu Kumaran | Co-Founder & Chief Executive Officer | https://shizune.co/investors/profile/mukundu-kumaran |
| Rajkumar Madhuram | Chief Technology Officer | https://shizune.co/investors/profile/rajkumar-madhuram |

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