reverse-osmosis
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The Family Business Behind 34 Local Water Shops
Packard Culligan sells sophisticated treatment systems, but its real product is local follow-through - the test, the truck, the technician and the next service call.
Culligan’s Real Product Isn’t the Filter. It’s the Return Visit.
The 90-year-old water company has built a $3.4 billion business by pairing filters, softeners and taps with something harder to copy: 8,000 service routes that keep coming back.
Pani
Pani (Pani Energy Inc.) is a Canadian climate-tech software company that puts a digital brain on top of the world's water treatment plants. Its flagship cloud platform, Pani Zed, consolidates messy sensor data from desalination, industrial and municipal facilities, builds a digital twin of each plant, and uses machine learning to tell operators exactly how to cut energy use, extend membrane life, and lower emissions - without new capital equipment or retrofits. Founded in 2017 by Devesh Bharadwaj and based in Victoria/Vancouver, British Columbia, Pani deploys across facilities in multiple countries and has landed on the Global Cleantech 100 list.
Gradiant
Gradiant is an MIT spinout turned global water-technology company that designs, builds, and operates advanced systems to treat, reuse, and recover industrial water and wastewater. Using a stack of proprietary technologies - from Carrier Gas Extraction to Counterflow Reverse Osmosis and an AI control layer called SmartOps - Gradiant helps semiconductor fabs, food and beverage giants, pharmaceutical makers, miners, and refiners cut freshwater use, recover lithium and other minerals, and destroy 'forever chemicals.' The first unicorn in the water industry, it reached a $2 billion valuation in 2026.