Thomas Mann
Angel Investor
London, United Kingdom
Thomas Mann is a seed investor in London focused on Software and Developer Tools. Thomas Paul Mann is the CEO and Founder at Raycast.
- Total investments:
- 5
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Thomas Mann invests in
Stages Thomas Mann invests in
Countries Thomas Mann invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 3 (60%)
- Developer Tools 2 (40%)
- Security 1 (20%)
- Open Source 1 (20%)
- Cyber Security 1 (20%)
Stage
- Seed 4 (80%)
- Series A 1 (20%)
Country
- United States 3 (60%)
- Sweden 1 (20%)
- United Kingdom 1 (20%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Polar is a subscription network for open-source maintainers and backers. Polar also provides tools that enable data processing and data integration. Polar was founded in 2022 and was headquartered in Stockholm, Sweden. | $10M / Seed / Jun 18, 2025 | ||
| Index offers collaborative planning for high-growth technology companies. | $2.2M / Seed / Feb 11, 2025 | ||
| Arcjet helps developers protect their apps in just a few lines of code. Implement rate limiting, bot protection, email validation, and defense against common attacks. | $3.6M / Seed / Sep 10, 2024 | ||
| Knock helps product and engineering teams send notifications to their customers. | $12M / Series A / Feb 15, 2024 | ||
| Plain, a new startup that wants to reinvent support tools. While the customer support space is a competitive industry with big tech companies like Intercom and Zendesk, Plain believes it has a different approach as it focuses on API integrations to make your company’s product and your support platform work hand in hand. | $6M / Seed / Nov 09, 2022 |
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FAQ
What does Thomas Mann invest in?
Thomas Mann invests primarily in Software, Developer Tools and Security startups, most often at Seed and Series A stage. Most of the 5 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Thomas Mann?
Public channels for Thomas Mann 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 Thomas Mann last invest?
The most recent investment recorded for Thomas Mann closed in Jun 2025. Shizune tracks 5 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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