# Cox Investment Holdings

> Cox Investment Holdings is a VC fund in Maidenhead backing News, Energy and CleanTech. See 2 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Maidenhead, United Kingdom
- Total investments: 2
- Last investment: Jul 2019
- Lead investor: 0%
- Last updated: Aug 2026

Cox Investment Holdings is an investment firm

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| News | 1 | 50% |
| Energy | 1 | 50% |
| CleanTech | 1 | 50% |
| Journalism | 1 | 50% |
| Broadcasting | 1 | 50% |

6 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 1 | 50% |
| Series A | 1 | 50% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Sierra Energy | Since 2004, Sierra Energy has focused on the development of FastOx® gasification, a technology that turns trash into energy without burning. This sustainable solution is commercially available to meet the needs of the modern waste industry. The company continues to advance its technology and test new applications for gasification at the SierraEnergy Research Park in Davis, California. Sierra Energy’s commercial facility is located in Monterey County, California. | $33M | Series A | Jul 29, 2019 |  |
| NewsGuard | NewsGuard will address the fake news crisis by hiring dozens of trained journalists as analysts to review the 7,500 news and information websites most accessed and shared in the United States. NewsGuard will license its ratings and Nutrition Labels to the various social media and search platforms and other aggregators of news and information sothat they can offer the ratings and Nutrition Labels with their feeds. | $6M | Seed | Mar 06, 2018 |  |

2 of 2 investments shown.

## Co-investors
- [Blue Haven Initiative](https://shizune.co/investors/profile/blue-haven-initiative) — VC Fund, 1 deal together
- [BNP Paribas Private Equity](https://shizune.co/investors/profile/bnp-paribas-private-equity) — VC Fund, 1 deal together
- [Breakthrough Energy Ventures](https://shizune.co/investors/profile/breakthrough-energy-ventures) — VC Fund, 1 deal together
- [Fitz Gate Ventures](https://shizune.co/investors/profile/fitzrandolph-gateway) — VC Fund, 1 deal together
- [Formica Ventures](https://shizune.co/investors/profile/formica-ventures) — VC Fund, 1 deal together
- [Knight Enterprise Fund](https://shizune.co/investors/profile/knight-enterprise-fund) — VC Fund, 1 deal together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Cox Investment Holdings invest in?

Cox Investment Holdings invests primarily in News, Energy and CleanTech startups, most often at Seed and Series A stage. Most of the 2 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Cox Investment Holdings last invest?

The most recent investment recorded for Cox Investment Holdings closed in Jul 2019. Shizune tracks 2 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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