# Martin Junker

> Martin Junker is a Series A investor at Venture Stars (Munich) backing Travel and Software. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Venture Stars](https://shizune.co/investors/profile/venture-stars)
- Location: Munich, Germany
- Total investments: 8
- Last investment: Apr 2026
- Lead investor: 13%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/martin-junker-93baa93a/?locale=en_US

Martin Junker is a Series A investor at Venture Stars in Munich focused on Travel and Software. Martin Junker - Founding Partner @ Venture Stars

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Travel | 1 | 13% |
| Software | 1 | 13% |
| Search Engine | 1 | 13% |
| Vacation Rental | 1 | 13% |
| Information Technology | 1 | 13% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 2 | 25% |
| Seed | 1 | 13% |
| Series C | 1 | 13% |
| Series D | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Synera | Bremen-based software company ELISE GmbH has created the first low-code development platform for engineering. Engineers can use it to automate recurring tasks across all domains in a single environment. Thus, unlike in classical design processes, ELISE enables algorithm-based modeling. As a result of this automation, developers can return tocreative activities and ultimately design faster and better products. On ELISE, all data and the entire expert knowledge of the development process are integrated. Engineers are thus provided with technical capabilities that are otherwise only available to software developers, despite their diverse skills. This is achieved through a visual programming language for which no special IT knowledge is required. Users of ELISE work in numerous industries, including automotive, aerospace and medical technology. The platform’s potential has been proven at customers such as Volkswagen, BMW, Hyundai, Brose and EDAG. With the help of ELISE, they were able to design individual components up to 90 percent faster than before. | $40M | Series B | Apr 14, 2026 |  |
| VoiceLine | VoiceLine helps professionals by bringing voice collaboration to high performing teams. | $2.6M | Seed | Aug 13, 2024 |  |
| Synera | Bremen-based software company ELISE GmbH has created the first low-code development platform for engineering. Engineers can use it to automate recurring tasks across all domains in a single environment. Thus, unlike in classical design processes, ELISE enables algorithm-based modeling. As a result of this automation, developers can return tocreative activities and ultimately design faster and better products. On ELISE, all data and the entire expert knowledge of the development process are integrated. Engineers are thus provided with technical capabilities that are otherwise only available to software developers, despite their diverse skills. This is achieved through a visual programming language for which no special IT knowledge is required. Users of ELISE work in numerous industries, including automotive, aerospace and medical technology. The platform’s potential has been proven at customers such as Volkswagen, BMW, Hyundai, Brose and EDAG. With the help of ELISE, they were able to design individual components up to 90 percent faster than before. | $14.8M | Series A | Sep 07, 2022 |  |
| Holidu | Holidu is one of the fastest-growing travel tech companies worldwide that aims to finally make the search and booking of vacation rentals easy. Its search engine uses proprietary image recognition technology to compare the prices of millions of rental properties across hundred of websites including Airbnb, Booking.com, and Homeaway. This enablesusers to quickly find the ideal accommodation and to save up to 55% on their bookings. It was founded in 2014 by brothers Johannes and Michael Siebers and is headquartered in Munich, Bayern, Germany. | $45M | Series D | May 12, 2021 |  |
| Synera | Bremen-based software company ELISE GmbH has created the first low-code development platform for engineering. Engineers can use it to automate recurring tasks across all domains in a single environment. Thus, unlike in classical design processes, ELISE enables algorithm-based modeling. As a result of this automation, developers can return tocreative activities and ultimately design faster and better products. On ELISE, all data and the entire expert knowledge of the development process are integrated. Engineers are thus provided with technical capabilities that are otherwise only available to software developers, despite their diverse skills. This is achieved through a visual programming language for which no special IT knowledge is required. Users of ELISE work in numerous industries, including automotive, aerospace and medical technology. The platform’s potential has been proven at customers such as Volkswagen, BMW, Hyundai, Brose and EDAG. With the help of ELISE, they were able to design individual components up to 90 percent faster than before. | $3.2M | Seed | Nov 10, 2019 |  |
| Holidu | Holidu is one of the fastest-growing travel tech companies worldwide that aims to finally make the search and booking of vacation rentals easy. Its search engine uses proprietary image recognition technology to compare the prices of millions of rental properties across hundred of websites including Airbnb, Booking.com, and Homeaway. This enablesusers to quickly find the ideal accommodation and to save up to 55% on their bookings. It was founded in 2014 by brothers Johannes and Michael Siebers and is headquartered in Munich, Bayern, Germany. | $42.4M | Series C | Sep 17, 2019 |  |
| Holidu | Holidu is one of the fastest-growing travel tech companies worldwide that aims to finally make the search and booking of vacation rentals easy. Its search engine uses proprietary image recognition technology to compare the prices of millions of rental properties across hundred of websites including Airbnb, Booking.com, and Homeaway. This enablesusers to quickly find the ideal accommodation and to save up to 55% on their bookings. It was founded in 2014 by brothers Johannes and Michael Siebers and is headquartered in Munich, Bayern, Germany. |  | Series A | Jan 11, 2018 |  |
| Holidu | Holidu is one of the fastest-growing travel tech companies worldwide that aims to finally make the search and booking of vacation rentals easy. Its search engine uses proprietary image recognition technology to compare the prices of millions of rental properties across hundred of websites including Airbnb, Booking.com, and Homeaway. This enablesusers to quickly find the ideal accommodation and to save up to 55% on their bookings. It was founded in 2014 by brothers Johannes and Michael Siebers and is headquartered in Munich, Bayern, Germany. | $5.5M | Series A | Jan 07, 2016 |  |

8 of 8 investments shown.

## Co-investors
- [EQT Ventures](https://shizune.co/investors/profile/eqtventures) — VC Fund, 5 deals together
- [Senovo](https://shizune.co/investors/profile/senovo) — VC Fund, 4 deals together
- [BMW i Ventures](https://shizune.co/investors/profile/bmw-ventures) — VC Fund, 3 deals together
- [Cherry Ventures](https://shizune.co/investors/profile/cherry-ventures) — VC Fund, 3 deals together
- [NAP](https://shizune.co/investors/profile/nap-vc) — VC Fund, 3 deals together
- [UVC Partners](https://shizune.co/investors/profile/uvc-partners) — VC Fund, 3 deals together

## About Venture Stars

VC Fund · Munich, Germany

Venture Stars is a Munich based venture capital firm focused on early-stage investments in innovative, digital B2C and B2B business models.

5 contacts available at Venture Stars.

| Name | Title | Profile |
| --- | --- | --- |
| Florian Calmbach | Founding Partner | https://shizune.co/investors/profile/florian-calmbach |
| Martin Junker | Founding Partner | https://shizune.co/investors/profile/martin-junker |
| Erik Pfannmöller | Venture Partner | https://shizune.co/investors/profile/erik-pfannm%C3%B6ller |
| Raphael Budday | Investment Manager | https://shizune.co/investors/profile/raphael-budday |
| Stefan Pfannmoeller | Founder and CEO | https://shizune.co/investors/profile/stefan-pfannmoeller |

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## FAQ

### What does Martin Junker invest in?

Martin Junker invests primarily in Travel, Software and Search Engine startups, most often at Series A and Seed stage. Most of the 8 investments tracked by Shizune back companies in Germany. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Martin Junker last invest?

The most recent investment recorded for Martin Junker closed in Apr 2026. Shizune tracks 8 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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