SIVentures, formerly known as Smart Infrastructure Ventures, is a Leipzig-based venture capital firm founded in 2019. The firm backs early-stage B2B technology startups, with a particular emphasis on companies from the DACH region. By focusing on pre-seed and seed stages, SIVentures positions itself as a catalyst for innovation in Europe’s startup ecosystem, while also supporting companies through follow-on rounds as they scale.
SIVentures invests primarily in pre-seed and seed-stage startups across B2B SaaS, AI applications, software infrastructure, and energy. The firm typically makes initial investments of 300,000 to 500,000 euros per company and has the capacity to commit up to 2 million euros in follow-on rounds. Its geographic focus is the DACH region, though it also considers strong opportunities across Europe.
In August 2025, SIVentures announced the launch of its second fund, SIVentures II, with a target size of 30 million euros. The fund has already secured more than 75% of its target and completed its first closing.
With Fund II, the firm aims to expand its portfolio of B2B-focused startups in Germany and neighboring countries.
The fund has already made four initial investments since its first close, with more planned in the coming months. Investors in Fund II include a mix of German corporates, banks, family offices, and funds of funds. This second vehicle builds on the momentum of its debut fund, which closed in 2024 and recorded two exits, including the sale of Leipzig-based digital health startup mementor to US healthcare company ResMed.
Leadership
SIVentures is led by a team based in Leipzig, Germany. The firm recently rebranded from Smart Infrastructure Ventures to SIVentures, reflecting its broader focus on technology-driven innovation and sharpening its market positioning. The leadership emphasizes close engagement with founders, providing both capital and operational support as companies grow.
Investment Strategy
The firm’s investment strategy is centered on backing European B2B startups at their earliest stages, with a focus on scalable, technology-driven solutions.
SIVentures provides not only early financial backing but also reserves significant capital for follow-on funding, ensuring that its companies are supported through critical growth phases.
By concentrating on SaaS, AI, energy, and software infrastructure, SIVentures aims to help build companies that can become category leaders in Europe.
Notable Investments
Portfolio companies include Jena-based cybersecurity firm Enginsight and Berlin-based customs automation startup traide AI. Together with other startups in its portfolio, these companies have created more than 300 jobs in Germany. The firm’s second fund is already adding new names to this list, further broadening its portfolio of B2B-focused companies.
Notable Exits
SIVentures’ first fund achieved two exits, most notably the acquisition of digital health company mementor by ResMed. This marked an important milestone for the firm, validating its ability to identify and back promising startups at an early stage.
Other
The rebrand from Smart Infrastructure Ventures to SIVentures coincided with the launch of Fund II, signaling the firm’s growth and evolution in the European venture landscape. The firm maintains strong ties with investors across Germany, including corporates, banks, and family offices.
