Stefan Muehlemann
Angel Investor
Zürich, Switzerland
Stefan Muehlemann is a hands-on entrepreneur, with 30 years of experience in banking and finance. He has a successful track record, founding his first business at the age of 23. With his most recent venture “Loanboox”, the leading independent debt capital market platform connecting public-sector and large corporate borrowers with institutionalinvestors and banks, he is revolutionizing the big-ticket lending and borrowing process. Stefan was recognized as a Finalist at Entrepreneur of the Year 2018 Awards, and is an active angel investor, supporting various start-ups. He lectured at universities St. Gallen and Zurich and earned his MBA at the renowned Tuck School of Business at Dartmouth in the US and at London Business School.
- Total investments:
- 10
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Stefan Muehlemann invests in
Stages Stefan Muehlemann invests in
Countries Stefan Muehlemann invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $106k–$3.2M
Investment Focus
Industry
- Finance 3 (30%)
- Financial Services 3 (30%)
- FinTech 2 (20%)
- Lending 2 (20%)
- Software 2 (20%)
Stage
- Seed 8 (80%)
- Angel 1 (10%)
- Series B 1 (10%)
Country
- Switzerland 6 (60%)
- Germany 2 (20%)
- Taiwan 1 (10%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| aeris is the first provider of full indoor air quality treatment systems. We provide a unique air purifier product line capable of tackling any type of air pollution at home or at work. Unlike current static air treatment products, our system constantly tracks indoor air quality and room occupancy, to ensure our air purification and ventilationdevices ensure best air quality with lowest energy consumption.We continue to push boundaries on nano-spun filter technology, proprietary air quality sensor technology and sleek minimalist air purifier design. Our aeris fleet management software employs latest control system techniques to ensure lowest energy consumption of our products while keeping PM2.5, CO2 and VOC at lowest levels. | $8.5M / Series B / Mar 01, 2021 | ||
| Carvolution is the next-generation mobility services provider reshaping car ownership through its fully digital subscription service.Carvolution makes choosing a new car exciting. As it removes the hassle out of ownership and the inflexibility out of leasing, it enables consumers to choose their dream car as a convenient monthly subscriptionservice instead of a long-term commitment. Their digitally-powered one-stop-shop streamlines everything from insurance to maintenance: saving customers time and money while enabling efficiencies for all connected parties. | Seed / May 01, 2019 | ||
| Buena offers a digital property management platform and integrated services for landlords and tenants. It provides tools for rental and condominium management, covering maintenance coordination, accounting, legal compliance, and transparent reporting via an app. Through its AI-enabled software and acquisition strategy, it centralizes and automatesroutine tasks such as accounting and financial reporting. The platform assigns a dedicated manager per property and connects with vetted service providers, delivering real-time visibility into activity and costs. | Seed / Nov 02, 2018 | ||
| KiWi provides micro-merchants with access to appropriate digital technology, thereby contributing to a fair and competitive market. Merchants can use their KiWi app to accept card and mobile payments, gain access to microcredit, and earn more money by selling additional KiWi services and products.KiWi was founded in 2014 and has offices inSwitzerland and Mexico. | $3.2M / Seed / Aug 18, 2018 | ||
| MINEKO is a privately held company that is specialized in the examination of service charges. | Seed / Oct 02, 2017 | ||
| Swisspeers offers investors the opportunity to make interesting direct investments in small and medium-sized companies and thus escape the investment crisis in the Swiss franc fixed-interest business. Alternative investment with an attractive risk-return profile also contributes to strengthening. | Seed / Feb 01, 2017 | ||
| Once is a matchmaking app that has a presence in 32 countries, accommodates seven languages, and is supported by Android, iOS, and Apple Watch OS. The app creates meaningful and private connections with one handpicked match per person, once a day, every 24 hours. Once sends one match each day to each user around noon in their respective timezones. Once the users are paired up, they will see each other at the same time and, if both indicate to the app that they are interested, the app lets them communicate. Unlike other matchmaking products, the app uses a team of human matchmakers to match users up based on a variety of factors, including appearance and hobbies. | Seed / Apr 03, 2016 | ||
| Loanboox's success speaks for itself: Since the Go-live in September 2016, Loanboox dealt with a volume request over 61 billion Euros. More than 3000 cities and communities as well as institutional investors and banks are active on Loanboox. Loanboox is about to conquer the German, Austrian, French and Dutch market, too. And next step:Digitalisation of capital market. | $405.4K / Angel / Mar 15, 2016 | ||
| Loanboox's success speaks for itself: Since the Go-live in September 2016, Loanboox dealt with a volume request over 61 billion Euros. More than 3000 cities and communities as well as institutional investors and banks are active on Loanboox. Loanboox is about to conquer the German, Austrian, French and Dutch market, too. And next step:Digitalisation of capital market. | $106.2K / Seed / Jul 03, 2015 | ||
| Futurae was created in 2016 as an ETH-Zurich spin-off. Futurae has the goal to make the authentication process easier and safer for users and companies. Futurae offers companies a comprehensive Authentication Platform with AI-based authentication and regulatory-compliant products (e.g. PSD2/SCA). These products reduce user friction, improvethe overall user experience and reduce support costs for companies. | Seed |
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FAQ
What does Stefan Muehlemann invest in?
Stefan Muehlemann invests primarily in Finance, Financial Services and FinTech startups, most often at Seed and Angel stage. Most of the 10 investments tracked by Shizune back companies in Switzerland. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Stefan Muehlemann's check size?
Stefan Muehlemann typically joins rounds of $106k–$3.2M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Stefan Muehlemann participates in.
How do I contact Stefan Muehlemann?
Public channels for Stefan Muehlemann include LinkedIn, X (Twitter) and Facebook. 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 Stefan Muehlemann last invest?
The most recent investment recorded for Stefan Muehlemann closed in Mar 2021. Shizune tracks 10 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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