ThreeD Capital Inc.
ThreeD Capital Inc. is a publicly traded Canadian venture firm in Toronto that backs junior mining, AI, blockchain, and biotech, not a water specialist. Water shows up in just one of its holdings. As of 2026 it has backed a single water company, infinitii ai, across four rounds, and (don't) Waste Water rates its water commitment Committed.
Compiled by Antoine Walter, (don't) Waste Water, from official filings and direct intelligence in Leviathan.
The take
ThreeD Capital is one of the rare venture firms you can actually buy on a stock exchange. It trades on the Canadian Securities Exchange as CSE:IDK, so instead of raising a closed pool from limited partners (the institutions that bankroll a normal fund), it invests its own balance sheet and lets retail shareholders ride along. That structure, and a taste for the small and the speculative, runs straight from its founder.
ThreeD Capital was built by Sheldon Inwentash, who spent two decades running the merchant bank Pinetree Capital before launching it, and made his name as an early backer of Canadian mining names like Queenston, Aurelian, and Gold Eagle. The firm is an unapologetic generalist, hunting opportunistic, ground-floor bets across junior resources, artificial intelligence, blockchain, biotech, and the Internet of Things, usually writing the lead cheque. Water is not a category it set out to chase.
ThreeD Capital's single water name is infinitii ai, and it is a telling one. infinitii ai sells AI-driven predictive analytics to water utilities, with a flowworks platform that pulls together data from sensors, industrial control systems, satellites, and public agencies like the USGS and NOAA for municipal water systems from Toronto and Boston to Miami-Dade and Los Angeles County. It is a software-and-data play on water infrastructure, which is exactly the disruptive-tech shape ThreeD likes, and the firm has returned to back it across four rounds rather than one.
ThreeD Capital's water exposure, then, is one conviction bet rather than a thesis. The thing to watch is its AI and data deal flow, not a water mandate, because the next water company to make ThreeD's book will most likely be another instrumentation or software story that fits its disruptive-tech lens, not a sign the firm has turned into a water investor.
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.
Portfolio · 1 water companies
Invests alongside
Highlighted = profiled on (don't) Waste Water.
Frequently asked
- What does ThreeD Capital invest in?
- ThreeD Capital makes opportunistic, early-stage investments across junior resources, artificial intelligence, blockchain, biotechnology, and the Internet of Things, usually as the lead investor. It is a generalist, not a water fund: only one of its holdings, infinitii ai, is water-related, which is why (don't) Waste Water rates its water commitment Committed.
- Is ThreeD Capital a water fund?
- ThreeD Capital is not a water fund. It is a publicly traded Canadian venture firm focused on disruptive technologies and junior resources, and water appears in just one of its holdings, infinitii ai. Its water exposure is a single conviction bet inside a much broader, sector-agnostic portfolio.
- Who runs ThreeD Capital?
- ThreeD Capital was founded and is led by Sheldon Inwentash, its Chairman and CEO, who built and ran the merchant bank Pinetree Capital for two decades before launching it. Jakson Inwentash, a CFA charterholder, serves as Director and VP of Investments, leading the firm's deal sourcing and due diligence.
- What water company has ThreeD Capital backed?
- ThreeD Capital's one water holding is infinitii ai, which sells AI-driven predictive analytics to water utilities. Its flowworks platform unifies data from sensors, industrial control systems, satellites, and public agencies for municipal water systems from Toronto to Los Angeles County. ThreeD has backed the company across four rounds, typically as the lead investor.
- Where is ThreeD Capital based?
- ThreeD Capital is based in Toronto, Canada, and is publicly traded on the Canadian Securities Exchange under the ticker IDK. Unlike a private fund that raises capital from limited partners, it is a listed investment company that deploys its own balance sheet into early-stage companies.