# John Libby

> John Libby is a seed investor in Irvine backing Audio and Gaming. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Irvine, United States
- Total investments: 1
- Last investment: Jan 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/jolibby

John Libby is an individual investor.

## Contacts

5 contacts available for John Libby: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/john-libby-4aeb?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Audio | 1 | 100% |
| Gaming | 1 | 100% |
| Sensor | 1 | 100% |
| Real Time | 1 | 100% |
| Personalization | 1 | 100% |

9 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| NumberEight | NumberEight is a global leader in privacy-first data solutions. Our ID-less technology specializes in transforming untapped signals into actionable audience insights with advanced AI to power omnichannel curation and targeting. | $2.7M | Seed | Jan 11, 2024 | https://www.numbereight.ai |

1 of 1 investments shown.

## Co-investors
- [ACF Investors](https://shizune.co/investors/profile/angel-cofund) — VC Fund, 1 deal together
- [Ascension Ventures](https://shizune.co/investors/profile/ascension-ventures) — VC Fund, 1 deal together
- [COREangels Big Data & AI Europe](https://shizune.co/investors/profile/coreangels-big-data-ai-europe) — VC Fund, 1 deal together
- [COREangels EnterpriseTech](https://shizune.co/investors/profile/coreangels-enterprisetech) — VC Fund, 1 deal together
- [Enterprise 100](https://shizune.co/investors/profile/enterprise-100) — VC Fund, 1 deal together
- [LC Ventures](https://shizune.co/investors/profile/lc-ventures) — VC Fund, 1 deal together

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## Featured in investor lists
- [Mobile Advertising Angel Investors in Europe](https://shizune.co/investors/mobile-advertising-angel-investors-europe)

## FAQ

### What does John Libby invest in?

John Libby invests primarily in Audio, Gaming and Sensor startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact John Libby?

Public channels for John Libby include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did John Libby last invest?

The most recent investment recorded for John Libby closed in Jan 2024. Shizune tracks 1 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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