Watergate develops the Sonic Smart Stopcock plus companion apps and enterprise software that use AI to detect abnormal water usage, notify users, and automatically shut off water to prevent damage. The company sells to businesses, utilities, landlords and homeowners and reports partnerships with landlords such as Greystar, London Square and Hestia, identifying up to 68% water savings in large buildings. Watergate positions its product as a response to ageing infrastructure and climate pressures; the article notes over 3 billion litres of water are lost to leaks every day in England and Wales. Financially, Watergate completed a record crowdfunding round and is closing a larger equity round to scale operations. The firm plans to use the new capital to expand direct-to-consumer distribution, accelerate adoption across UK and European property portfolios, and to launch in the US leveraging connections from the BREW Accelerator (Milwaukee) and GROW London (Los Angeles). The company also intends to invest in product innovation and integrations with other smart water tools and platforms. Watergate’s core product, Sonic, combines ultrasonic sensors with AI to detect pinhole leaks (as small as one drip every two minutes), provide freeze and Legionella risk alerts, and automatically shut off supply when serious leaks are detected. The company expanded from a hardware-only device into a full platform offering monitoring, automated shut-off, and user tools for households, landlords and utilities. Since launching in 2024 it has secured partnerships with property developers, insurers and large landlords (including Greystar) and demonstrated up to 68% water savings for customers; an installation in a 600+ student-apartment building flagged leaks in 22% of units on deployment. Watergate is currently focused on the UK, is in talks with six major water companies, and plans North American expansion starting in California. Product roadmap includes three additional hardware products: a clip-on non-plumbed sensor, a large-pipe industrial solution, and further device rollouts. The company was accepted into The Water Council’s BREW Accelerator and REACH UK, supporting its international expansion plans.

Total raised

$2M

Funding rounds

2

Latest round

Equity

Latest activity

Aug 2025