# Jon Craton

> Jon Craton is a Series B investor backing Software and Machine Learning. See 4 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Total investments: 4
- Last investment: Oct 2019
- Lead investor: 25%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/jon-craton-2098a26

Jon Craton is a Series B investor focused on Software and Machine Learning. Jon Craton has over 24 years experience of the telecoms industry in general and Operations Support Systems in particular. In 1996 he founded Cramer Systems and was a senior executive with the company until its sale to Amdocs in 2006 for $425 million. Since then Jon has been an angel investor, working in the technology sector. Jon is extensivelyinvolved with PowerOasis – he is a non-executive director of the company and one its largest investors. He brings to PowerOasis a wealth of experience in managing rapid growth whilst maintaining very high standards of customer satisfaction.

## Contacts

5 contacts available for Jon Craton: 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/jon-craton?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Series B | $8.4M–$18M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 50% |
| Machine Learning | 2 | 50% |
| Artificial Intelligence | 2 | 50% |
| iOS | 1 | 25% |
| Mobile | 1 | 25% |

10 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 2 | 50% |
| Angel | 1 | 25% |
| Series A | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Rosa Biotech | Rosa Biotech is redefining biosensing. They are enabling previously intractable challenges in early disease diagnosis and industrial biotechnology to be addressed accurately and at scale. Their patent-pending technology builds upon and extends the pioneering protein design work of Prof. Dek Woolfson and his team at the University of Bristol’sSynthetic Biology Research Centre, BrisSynBio. By combining this with advanced machine-learning techniques, they offer a powerful platform capable of being trained to address numerous complex biosensing problems. | $983.3K | Angel | Oct 31, 2019 | https://www.rosabio.tech/ |
| Zynstra | Zynstra is transforming edge computing at the retail edge. Its Intelligent Infrastructure is specifically designed and built for the retail edge, not the datacenter. It leverages intelligent automation to transform the way thousands of distributed sites are managed. By choosing Zynstra, the retail edge becomes the source of your competitiveadvantage in an era where superior customer experience is not only a great-to-have, but a must-have. You establish a lasting platform where new innovative apps and services are tested and launched to delight consumers at the retail edge, all while driving down operational costs and better managing risk, With its DNA deeply rooted in edge software products, Zynstra provides purpose-built edge infrastructure for the world’s largest, most distributed, innovation-driven enterprises. Zynstra is a strategic partner of HPE in delivering intelligence infrastructure – under the HPE Proliant Easy Connect brand – and is based in the United Kingdom. | $8.4M | Series B | Jul 09, 2014 | http://www.zynstra.com |
| SwiftKey | SwiftKey is a technology company that aims to enhance interaction between keyboards and people. It upgrades smartphone keyboards to make typing faster, by utilizing artificial intelligence to learn from each user in order to autocorrect and predict their next word. The SwiftKey Keyboard for Android supports more than 80 languages.SwiftKey wasfounded by Ben Medlock and Jon Reynolds in 2008 and is based in London, United Kingdom. | $17.5M | Series B | Sep 04, 2013 | https://www.microsoft.com |
| SwiftKey | SwiftKey is a technology company that aims to enhance interaction between keyboards and people. It upgrades smartphone keyboards to make typing faster, by utilizing artificial intelligence to learn from each user in order to autocorrect and predict their next word. The SwiftKey Keyboard for Android supports more than 80 languages.SwiftKey wasfounded by Ben Medlock and Jon Reynolds in 2008 and is based in London, United Kingdom. |  | Series A | Dec 07, 2011 | https://www.microsoft.com |

4 of 4 investments shown.

## Co-investors
- [Cambridge Capital Group](https://shizune.co/investors/profile/cambridge-capital-group) — VC Fund, 2 deals together
- [Octopus Ventures](https://shizune.co/investors/profile/octopus-ventures) — VC Fund, 2 deals together
- [Accel](https://shizune.co/investors/profile/accel) — VC Fund, 1 deal together
- [Index Ventures](https://shizune.co/investors/profile/index-ventures) — VC Fund, 1 deal together

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## FAQ

### What does Jon Craton invest in?

Jon Craton invests primarily in Software, Machine Learning and Artificial Intelligence startups, most often at Series B and Angel stage. Most of the 4 investments tracked by Shizune back companies in United Kingdom. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Jon Craton's check size?

Jon Craton typically joins rounds of $8.4M–$18M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Jon Craton participates in.

### How do I contact Jon Craton?

Public channels for Jon Craton 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 Jon Craton last invest?

The most recent investment recorded for Jon Craton closed in Oct 2019. Shizune tracks 4 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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