Christian Buchenau
Co-Founder, Managing Director & Partner @ SquareOne
Berlin, Germany
Christian Buchenau is a seed investor at SquareOne in Berlin focused on E-Commerce and SaaS. As a Partner and member of the founding team of Paua Ventures Christian is mainly responsible for structuring funding rounds and leading exit discussions. He serves on board for various companies out of the Paua portfolio and acts as a mentor for Microsoft Accelerator, Techstars and XY. He is frequently giving lectures on entrepreneurship, startupsand VC-financing at LMU Munich.Prior to Paua he had worked in M&A at Deutsche Bank in Frankfurt and Vienna.Christian holds a finance Master from EADA Business School, Barcelona.
- Total investments:
- 29
- Last investment:
- Lead investor:
- 52%
Last updated:
For AI agents: llms.txt
Industries Christian Buchenau invests in
Stages Christian Buchenau invests in
Countries Christian Buchenau invests in
Contacts
| Type | Contact | Validation |
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| Work email | ||
| Personal email | ||
| Work phone | ||
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Investment Focus
Industry
- E-Commerce 5 (17%)
- SaaS 3 (10%)
- Internet 3 (10%)
- B2B 2 (7%)
- Mobile 2 (7%)
Stage
- Seed 7 (24%)
- Series A 6 (21%)
- Funding Round 2 (7%)
- Angel 1 (3%)
- Pre-Seed 1 (3%)
Country
- Germany 9 (31%)
- Poland 1 (3%)
- Austria 1 (3%)
- Estonia 1 (3%)
- Switzerland 1 (3%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Our vision is to make high-quality health products accessible for everyone. We will achieve this by enabling creators of health products to build and operate high-quality products with 10x efficiency. We are putting our initial focus on automating compliance and regulatory tasks for medical device manufacturers. Our product offering includesAI-enabled automation of major parts of the data collection, aggregation, evaluation, and reporting for post-market surveillance activities. | $20M / Series A / Feb 19, 2026 | ||
| Sales and Marketing Workflow Platform. Sync data, score leads and take the next best step with each contact, | $2.5M / Pre-Seed / Sep 16, 2020 | ||
| Sales and Marketing Workflow Platform. Sync data, score leads and take the next best step with each contact, | Pre-Seed / Dec 01, 2018 | ||
| Wellabe is a cloud-based and patient-centered prevention platform. Wellabe enables agile integration of state of-the-art medical sensors in a lab setting for on-site screenings. Participants run through the screening before and after a preventive lifestyle intervention. The re-screenings measure the impact individuals have on their own biomarkerswith lifestyle changes. All assessed datasets are stored and interpreted in a cloud platform and can be assessed and enriched by patients with their smartphones. The data is presented to give the participants a comprehensive understanding about their health and keep them motivated. wellabe partners with caregivers, nutrition and sports providers that can help participants to change their markers within a defined timespan. wellabe aims to match the patients’ profiles with the most effective intervention. | Seed / Nov 08, 2018 | ||
| Intermix.io is a provider of performance monitoring solution. Moreover, the company's performance monitoring products helps data teams monitor critical data flows, identify bottlenecks, and root cause analysis. Founded in 2016, the company is headquartered in San Francisco, California, United States. | $3.1M / Seed / May 01, 2018 | ||
| Tylko offers uncompromising quality at a fair price, while perfectly fitted to your space & easily ordered online. | $3.2M / Series A / Dec 10, 2016 | ||
| Intermix.io is a provider of performance monitoring solution. Moreover, the company's performance monitoring products helps data teams monitor critical data flows, identify bottlenecks, and root cause analysis. Founded in 2016, the company is headquartered in San Francisco, California, United States. | $1.5M / Angel / Nov 01, 2016 | ||
| Shore is the leading provider of web-based business solutions for local service providers. The company offers easy and cost-effective access to digital communication and productivity software. The product portfolio spans from Online Booking over a professional CRM system, easy-to-use marketing tools to an efficient iPad-based cash system.Technical knowledge is not required. Shore enables local service providers to benefit from the versatile potential of digital solutions and helps them bring their business to new heights. Founded in 2012, Shore provides its solutions in 10 European countries and opened its first US office in LA in 2015. | $2.8M / Venture - Series Unknown / Sep 01, 2015 | ||
| Shore is the leading provider of web-based business solutions for local service providers. The company offers easy and cost-effective access to digital communication and productivity software. The product portfolio spans from Online Booking over a professional CRM system, easy-to-use marketing tools to an efficient iPad-based cash system.Technical knowledge is not required. Shore enables local service providers to benefit from the versatile potential of digital solutions and helps them bring their business to new heights. Founded in 2012, Shore provides its solutions in 10 European countries and opened its first US office in LA in 2015. | $5M / Series B / Jun 01, 2015 | ||
| KIWI is the keyless entry system for main entrance and apartment doors in multi-tenant buildings. Access rights can be managed centrally and in real-time via the online KIWI Portal. This saves property managers unnecessary trips and eliminates the hassle of ensuring the right key is in the right place at the right time.Currently, over 20,000buildings are equipped with the KIWI infrastructure, and more than 600 housing companies rely on our system.KIWI is a service provided by KIWI.KI GmbH. Founded in Berlin in February 2012, the company is managed by Karsten Nölling (CEO).For more information, please visit www.kiwi.ki. | $4.3M / Series A / Mar 31, 2015 | ||
| See all 29 investments → | |||
Co-Investors
About SquareOne
SquareOne is a Berlin-based venture capital firm. Established in 2010 and funded only with management money, SquareOne has built its way up to become a leading tech investor in Berlin.SquareOne invests in European early-stage B2B Software companies, acting both as lead or co-lead investor. Their focus is on sectors where they can add the mostvalue to your business: Enterprise Software, Software as a Service, Industry 4.0, Deep-tech (Robotics, Security, IoT, AI/ML, NLP, DevTools..)Paua provides a broad range of services and the team is truly committed in being the best partner for entrepreneurs, aiming to be the bridge between new businesses and the corporate world.
SquareOne Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Charlotte Baumhauer
Investment Associate
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Christian Buchenau
Co-Founder, Managing Director & Partner
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Christophe Defforey
Co-Founding Partner
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Federico Wengi
Partner
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Felix Plapperer
Venture Capital Investor
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FAQ
What does Christian Buchenau invest in?
Christian Buchenau invests primarily in E-Commerce, SaaS and Internet startups, most often at Seed and Series A stage. Most of the 29 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Christian Buchenau?
Public channels for Christian Buchenau 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 Christian Buchenau last invest?
The most recent investment recorded for Christian Buchenau closed in Feb 2026. Shizune tracks 29 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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