High-Tech Gründerfonds
High-Tech Gründerfonds (HTGF) is one of Germany's most active pre-seed and seed investors, a public-private fund that has backed roughly 800 deep-tech startups since 2005. It is a generalist, not a water specialist: (don't) Waste Water rates its water commitment Occasional, with one tracked water company, Variolytics, across two deals as of 2026.
Compiled by Antoine Walter, (don't) Waste Water, from official filings and direct intelligence in Leviathan.
The take
High-Tech Gründerfonds is the fund the German government built to fix a very German problem: brilliant lab science that never became a company. Launched in 2005 as a public-private partnership between the Federal Ministry for Economic Affairs, the state bank KfW, and dozens of corporates, HTGF writes the first institutional cheque into deep-tech founders most investors think are too early or too technical to touch. Roughly 800 startups and around 200 exits later, it is the default first call for a German university spin-out.
Water is not a category HTGF chases; it turns up as a by-product of the sectors it does back. The fund's one tracked water company, Variolytics, is a Stuttgart spin-out from the Fraunhofer research institutes that uses mass-spectrometry sensors and AI to measure and cut nitrous-oxide emissions at wastewater treatment plants, a climate problem dressed as a water one. That is the HTGF water pattern in miniature: it backs water when the real edge is hard chemistry, sensing or process technology, and the market stretches well beyond the utility. Variolytics sits inside HTGF's Industrial, Climate and Deep Tech beat, not a standalone water thesis, and shows up in our database across two financing rounds.
As of January 2026, HTGF promoted two of its technical investors to Partner: Gregor Haidl, who runs the Industrial, Climate and Deep Tech practice from the fund's Munich office, and Dr. Nik Raupp, who leads its push into chemistry, advanced materials and the circular economy. For a newcomer, that is the signal worth reading: HTGF is leaning harder into exactly the hard-science, climate-adjacent territory where its water bets actually live. It will not fund a pure water-utility play, but for a deep-tech founder solving a water problem with genuinely novel engineering, HTGF is one of the first doors in Germany worth knocking on.
Water Commitment Score
Compiled from official filings, third-party records, and direct intelligence from investors and founders, in Leviathan · recomputed monthly · as of Jun 2026.
How they invest
Portfolio · 1 water companies
Invests alongside
Highlighted = profiled on (don't) Waste Water.
Frequently asked
- What does High-Tech Gründerfonds invest in?
- High-Tech Gründerfonds is a German pre-seed and seed investor that backs deep-tech startups across Industrial, Climate and Deep Tech, Digital Tech, Life Sciences and Chemistry. Since 2005 it has financed roughly 800 companies, usually writing the first institutional cheque. Water is one occasional thread inside that broad deep-tech mandate, not a dedicated fund.
- Does High-Tech Gründerfonds invest in water?
- High-Tech Gründerfonds invests in water only occasionally, which is why (don't) Waste Water rates its water commitment Occasional. Our database tracks one water company, Variolytics, across two deals: a Fraunhofer spin-out whose sensors and AI cut nitrous-oxide emissions at wastewater plants. HTGF backs water when the underlying technology is genuinely novel.
- Who runs High-Tech Gründerfonds?
- High-Tech Gründerfonds was founded in 2005 and is still led by Managing Director Dr. Alex von Frankenberg. Its Industrial, Climate and Deep Tech investing, the area its water bets fall under, is run by Partner Gregor Haidl, while Partner Dr. Nik Raupp leads chemistry and industrial biotechnology, both promoted to Partner in January 2026.
- Where is High-Tech Gründerfonds based?
- High-Tech Gründerfonds is headquartered in Bonn, Germany, with further offices in Berlin and Munich. Founded in 2005, it manages around $2.0 billion and operates as a public-private partnership backed by the German Federal Ministry for Economic Affairs, the state bank KfW, and dozens of corporate and family-office investors.
- Is High-Tech Gründerfonds a government fund?
- High-Tech Gründerfonds is a public-private partnership, not a government agency. Germany's Federal Ministry for Economic Affairs and the state development bank KfW are anchor investors alongside dozens of companies, but HTGF is run by an independent management team that makes commercial venture-capital decisions on a startup-by-startup basis.