XTX Ventures
XTX Ventures is the London venture arm of algorithmic trading firm XTX Markets, an AI-first generalist investor rather than a water specialist. It backs artificial-intelligence and machine-learning startups from seed to Series B, and only a small slice of its portfolio touches water. As of 2026 it has backed 2 water companies across 2 deals.
Compiled by Antoine Walter, (don't) Waste Water, from official filings and direct intelligence in Leviathan.
The take
XTX Ventures is an odd entry on a water directory, because it is not a water fund at all. XTX Ventures is the in-house venture arm of XTX Markets, one of the world's largest algorithmic trading firms, and it backs technical founders building with artificial intelligence and machine learning, from infrastructure to healthcare to financial markets. Water is nowhere in its stated thesis.
Where XTX Ventures does touch water, the through-line is data, not pipes. Both of its water investments are software- or sensor-led: Subterra AI, which turns drag-and-drop CCTV footage into automated sewer and pipe condition assessments, and Pipeline Organics, whose microbial biofuel-cell sensors read wastewater quality in real time. Each fits the fund's AI and sensing DNA more than any water mandate.
XTX Ventures is run today by Gabriele Papievyte, who joined in 2023 and was promoted to Head of Ventures in 2025, bringing a board-level venture-capital background from Inovia Capital. For a newcomer the read is simple: XTX Ventures is where a quant trading house places AI bets, and water is a thin slice of that book.
XTX Ventures is not the fund for a water-first founder. But if you are a technical founder building AI that happens to run through water infrastructure, XTX Ventures is a door worth knowing, with the in-house machine-learning bench of a major trading firm sitting behind the cheque.
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 · 2 water companies
Invests alongside
Highlighted = profiled on (don't) Waste Water.
Frequently asked
- What does XTX Ventures invest in?
- XTX Ventures backs artificial-intelligence and machine-learning startups led by technical founders, from seed to Series B, across infrastructure, healthcare, enterprise software and financial markets. It is a generalist AI fund rather than a water specialist, and only a small part of its portfolio touches water.
- Is XTX Ventures a water investor?
- XTX Ventures is not a dedicated water fund. It has backed two water-related companies, Subterra AI and Pipeline Organics, both data- or sensor-driven, but water is incidental to its AI-first thesis. Founders seeking water-focused capital will find specialist funds a closer fit.
- Who runs XTX Ventures?
- XTX Ventures is led by Gabriele Papievyte, Head of Ventures, who joined in 2023 and was promoted to lead the unit in 2025. It is the in-house venture arm of XTX Markets, a London algorithmic trading firm, and draws on that firm's machine-learning expertise.
- Where is XTX Ventures based?
- XTX Ventures is based in London, United Kingdom, as the venture arm of algorithmic trading firm XTX Markets. It invests globally and is largely industry-agnostic within its AI and machine-learning focus, rather than tied to any single region or sector.
- How many water deals has XTX Ventures done?
- As of June 2026, XTX Ventures has backed 2 water companies across 2 disclosed deals in Leviathan's data: Subterra AI in AI pipe inspection and Pipeline Organics in wastewater sensing. Both are early-stage and reflect the fund's roots in data and machine learning.