Grounded facts from the world's scattered data.

What we make

LotTruthProductSeptic or sewer, usable ground, hazards, zoning and permits for a lot, worked out from every record.For Land buyers · Builders · Septic designers · Surveyors · Buyer's agentsFrom a real report: 16817 68th Ave E, 4.85 acres of vacant landAbout 1.5 acres clear of every mapped constraintSewer main 667 ft away; soil very limited for a drain field65% in a mapped landslide area, as are 18 of its 25 nearest lotsNo public water on record: plan on a wellVisit LotTruth →ColvosWorkflowsServiceOur Groundtruth engine run on your data job, in any field: records gathered, matched, checked and delivered to the spec.For Public agencies · Utilities · Telecom · Engineering and consulting firms · Records and GIS teamsTree canopy on city-owned land for Western Washington cities, ahead of the December 2026 permit deadline104city-owned parcels107.5acres of tree canopy on city landVisit Workflows →

How Groundtruth works

1. Gather

   From the offices that keep the records: maps, files, permits, scans and surveys, each vetted for who publishes it, how current it is and what its terms allow.

2. Match

   Records that share no ID are tied to the right property, pipe or line, and differences between sources are kept, never smoothed over.

3. Check

   Results are checked against an independent source, with the accuracy stated. Sources are watched, and the work reruns when they change.

4. Deliver

   A plain answer for one lot, or the maps, tables and data a job asks for, with how every number was made.

Who we are

Senior engineers with backgrounds in data systems for federal defense and intelligence programs, cloud platforms at AWS, state and county data sharing, and geospatial work at national scale.

Every fact is grounded: code does anything that has to be exact, AI helps only where judgment does, and every result can be traced back to its source. We work closely with the people who use what we build until it is right.