Mutualist Symbiont Hydrological, PBC

Turning AI's waste heat into the water the world is running out of.

We give AI data centers chiller-free, near-zero-water cooling — and turn the heat they shed into new freshwater and groundwater-recharge credits for the basins regulators are forcing back into balance.

For investorsHow it works
The resource collision of the AI age

Two exponential curves are colliding

16–33B
gallons/yr of U.S. data-center water demand by 2028 — two-thirds of new AI sites on water-stressed land.
~2M
acre-feet/yr California groundwater overdraft that SGMA legally requires be refilled by the early 2040s.
$37B
global desalination market by 2032 — MSH plays the least-commercialized, highest-margin slice.
System architecture

One closed loop, five value streams

1
Server waste heat

Captured at 35–55°C — the DC gets chiller-free cooling.

2
Membrane distillation

Waste heat drives desal; a biomass buffer holds it stable.

3
Brine polishing

Halophyte wetland cuts brine volume, yields a crop.

4
Mineral recovery

Magnesium recovered; toward zero-liquid-discharge.

5
Aquifer recharge

Remineralized water injected via EPA Class V wells.

Business model

Two revenue pillars, asset-light

Cooling-as-a-service

Data centers pay MSH to take their heat and cool their servers — chiller-free, near-zero-water. Our largest, most contractible revenue line.

Water & recharge credits

GSAs and water districts buy the purified water and the SGMA recharge credits MSH generates by refilling overdrafted aquifers.

Plus upside from magnesium recovery, carbon & ESG credits, and utility vegetation tipping fees. MSH owns the technology and the offtake; each node's civil build is project-financed with green debt.

A public benefit corporation

Mission and margin, structurally aligned

MSH's Delaware charter legally binds it to restore regional hydrological systems alongside returns — an ESG posture locked into its DNA, not bolted on.

Our mission & structure