Subsurface infrastructure advisory
FATHM

The most expensive risk in any project is the part no one looked at.

Independent judgment on what lies beneath: underground infrastructure, geospatial truth and the failures that surface too late.

What's below

A fathom is a measure of depth. Most infrastructure decisions are made about a layer nobody has measured.

Utility records are wrong, incomplete or untested. Billions in capital and decades of liability ride on plans drawn from guesswork and copied forward without anyone going to look. The surface gets surveyed to the millimetre. The ground beneath it gets a hopeful PDF.

Fathxm brings practitioner judgment to that gap: the distance between what a drawing claims and what the ground actually holds.

The work

Where the subsurface is the deciding factor.

Governance

Subsurface authority

Frameworks for knowing what's underground at scale. One-call notification, national underground asset registers, dig-safe regimes and the governance that separates a register from a liability. Pitched at sovereign and utility scale.

Diligence

Infrastructure feasibility

Siting and due diligence for assets that can't afford a surprise: power, water, data centres, major civils. Geospatial validation of what the records say, and a clear read on what they leave out.

Risk

Risk and mispricing

Underground infrastructure risk for insurers and infrastructure funds. The exposure that doesn't show up in a model because no one has data on it, and what it costs when it finally surfaces.

Spatial

Geospatial intelligence

Turning fragmented utility records into validated spatial truth. Mosaicking, georeferencing and ground-controlled accuracy on the plans that decisions actually get made from.

How this works

Authority here is earned the hard way: judgment under real consequences.

Not desk research. Fourteen years building Reveal from hand-painted ground markings into a subsurface mapping business meant being right or wrong with safety and money on the line. That's the only examiner that counts.

The judgment Fathxm sells is the kind that can't be synthesised from papers: first-hand observation, taste, and a track record of calling it correctly when it mattered. Credential as proof of having read about the problem is worth less than evidence of having lived inside it.

Track record
Engage

Selective engagements.

Fathxm takes a small number of engagements where the ground is the variable that decides the outcome. If that's the problem, start there.

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