# Constantin Boye

> Constantin Boye is a Series B investor at The Carlyle Group (London) backing Payments and Software. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [The Carlyle Group](https://shizune.co/investors/profile/the-carlyle-group)
- Location: London, United Kingdom
- Total investments: 3
- Last investment: Jan 2023
- Lead investor: 100%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/constantinboye

Constantin Boye is a Series B investor at The Carlyle Group in London focused on Payments and Software. Constantin Boye leads Carlyle's Growth Investment Team in London, NYC, DC and Menlo Park. Focused on backing exceptional founders and management teams across Europe, Israel, and the US who have the ambition to build globally relevant B2B & B2G software category leaders. Series B-C sweet-spot or Bootstrapped. Minority or majority.Hisinvestments include SurePay (payment verification software), Hack The Box (cybersecurity upskilling software), Shopware (OSS-powered digital commerce software), 1E (infrastructure software, acquired by TeamViewer), SER (AI-powered Enterprise Content Management software, aquired by TA Associates), NetMotion (Enterprise-grade VPN, acquired by Absolute Software), VWD (enterprise financial data & risk platform, acquired by Infront SAS)

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Payments | 1 | 33% |
| Software | 1 | 33% |
| Training | 1 | 33% |
| E-Commerce | 1 | 33% |
| Open Source | 1 | 33% |

10 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 1 | 33% |
| Private Equity | 1 | 33% |
| Venture - Series Unknown | 1 | 33% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Germany | 1 | 33% |
| United Kingdom | 1 | 33% |
| The Netherlands | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Hack The Box | Hack The Box is a provider of an ethical hacking community and cybersecurity training platform based in the United Kingdom. It enables users to test their penetration testing skills, exchange ideas and methodologies with the community. The platform contains several challenges that are constantly updated. Some of them simulating real-world scenariosand some of them leaning more towards a CTF style of challenge.The company was founded in 2017 by Aris Zikopoulos and Haris Pylarinos. | $55M | Series B | Jan 11, 2023 |  |
| Shopware | Shopware is an open-source platform that provides software for developing and managing business-to-consumer and business-to-business online stores. The platform’s architecture is API-first and headless, allowing for flexibility in hosting, customization, and integration with a global ecosystem of extensions and agencies. Shopware includes no-codeautomation tools for streamlining workflows and features for combining content and commerce to enhance customer experiences. | $100M | Venture - Series Unknown | Feb 08, 2022 |  |
| SurePay | SurePay makes online payments more personal and saferThe IBAN Name Check checks whether the name entered with the IBAN is different from the name known to the bank. And gives a notification if something deviates. This way you can check whether you are paying to the right person or the right company. This helps to prevent mistakes and fraud. Wellsafe! |  | Private Equity |  |  |

3 of 3 investments shown.

## Co-investors
- [Brighteye Ventures](https://shizune.co/investors/profile/brighteye-ventures) — VC Fund, 1 deal together
- [Endeavor Catalyst](https://shizune.co/investors/profile/endeavor-catalyst) — VC Fund, 1 deal together
- [Marathon Venture Capital](https://shizune.co/investors/profile/marathon-venture-capital) — VC Fund, 1 deal together
- [OUP (Osage University Partners)](https://shizune.co/investors/profile/osage-university-partners) — VC Fund, 1 deal together
- [Paladin Capital Group](https://shizune.co/investors/profile/paladin-capital-group) — VC Fund, 1 deal together
- [PayPal](https://shizune.co/investors/profile/paypal) — VC Fund, 1 deal together

## About The Carlyle Group

VC Fund · Washington, United States

The Carlyle Group is a private equity firm that caters to early and later-stage companies. The firm operates four fund families, focusing on leveraged buyouts, venture & growth capital, real estate, and leveraged finance investments.

5 contacts available at The Carlyle Group.

| Name | Title | Profile |
| --- | --- | --- |
| Alexander Popov | Partner, Head of Credit Opportunities | https://shizune.co/investors/profile/alex-popov |
| Alex Chi | Partner | https://shizune.co/investors/profile/alex-chi-e4fc |
| Andrew Zimmermann | EMEA Controller(Director) | https://shizune.co/investors/profile/andrew-zimmermann |
| Constantin Boye | Head of Carlyle Growth | https://shizune.co/investors/profile/constantin-a-boye |
| Glenn A. Youngkin | Chief Operating Officer | https://shizune.co/investors/profile/glenn-a-youngkin |

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## FAQ

### What does Constantin Boye invest in?

Constantin Boye invests primarily in Payments, Software and Training startups, most often at Series B and Private Equity stage. Most of the 3 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Constantin Boye last invest?

The most recent investment recorded for Constantin Boye closed in Jan 2023. Shizune tracks 3 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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