The smarter, simpler way to track and trade water

The smarter, simpler way to track and trade water

who it’s for


Track irrigation use, trade allocations, and submit regulatory documentation — all with the tap of a button.

Water Managers

Collect and manage water use data efficiently and consistently while tracking performance and conservation goals.


Incentivize, document, and reward water-efficient suppliers. Analyze water use data and monitor sustainability goals.

Why We Exist

Agricultural water is our collective lifeblood, growing our food, fuel, and fibers.

At Mammoth Water, we’re driven by stewardship, ensuring that our precious water resources are available to support the lives and livelihoods of our children, grandchildren, and generations to come.

Water scarcity affects us all.

Drought and disappearing water resources pose a dire threat to agriculture, which grows the food we eat and clothes we wear. It’s not just agricultural and rural livelihoods at stake — it is all of our livelihoods. At Mammoth Water, we’re tackling climate risk, water risk, and food risk by equipping the agricultural sector and water sector with a suite of software services including water accounting, water risk and performance, and water markets.

We can’t manage what we don’t measure.

Water accounting is hard, particularly for complex water allocations. That’s why we built TAPP H2O. TAPP H2O is cloud-based water accounting software that you can use in the office or on-the-go. It’s customizable to include single-year and multi-year allocations, carryover, pooling, recharge credits, and transfers. Contact us today to learn more about TAPP H2O for Farmers or TAPP H2O Enterprise for Water Managers.

Better management must be performance-driven.

Amidst drought, climate change, and tightening regulations, communities need to stretch limited water resources even father. Water markets can do that, putting limited resources to their best uses. To make those water markets more affordable and accessible, we created the most advanced water markets in the world, called “smart markets”. Our water markets reduce the time, cost, and hassle of water trading. We match buyers and sellers of water by price point and regulatory constraint. Get in touch to learn about smart markets in your area, or learn more about water markets on our blog.


Measure smarter.
Manage better.


Measure smarter.
Manage better.

Team Perspectives

Mammoth Water acquired by ERA Economics

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We are delighted to announce that Mammoth Water was acquired by ERA Economics, and join a team that ours at Mammoth has long admired. The acquisition emerged organically out of…

Water Market Readiness: A rapid scoping toolkit

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Is your region water-market ready? Together with the Daugherty Water for Food Global Institute, we built a scoping tool to help you answer your water market readiness based on five…

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How we work with growers.

How we work with water managers.

How we work with corporations.

See how it works

Get in touch and find out how we can help you manage water for a smarter future.

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