For public health
Health programs are judged on enrollment counts and vendor reports. Polisynth shows which neighborhoods carry the need, whether programs reach them, and whether outcomes changed.
Questions
- Which neighborhoods carry the most uninsured adults, and are our clinics near them?
- Did the outreach program reach the people it was designed for?
- How has Medicaid enrollment changed since the last renewal period?
- Where are preventable hospital visits concentrated?
Data
Joined to the same blocks and months, with the city controlling who sees what.
Products

AI analysts
Meridian
Answers questions, diagnoses departments and evaluates programs.
Staff ask in their own words and get an answer in seconds, with the source, the period and how certain it is.
Explore Meridian
Platform
Zenith
Gathers a city's public data into one model.
Budgets, council records, service requests, state and federal data and satellite imagery, matched to every block and month, with an estimate for each measure from past years to the present.
Explore Zenith
Commitments Pilot
Sidereal
Holds every funded program to the result it promised.
Before money moves, each program gets a written commitment: the result, how it is measured, the starting point, the target and date, and who owns it. Sidereal tracks delivery and results against it.
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Simulation Pilot
Parallax
Tests proposals on synthetic residents before funding.
Compare a proposed program with its alternatives on stand-in residents built from census data and the city's model, before any money is committed.
Explore ParallaxGetting started
- First
One department
A diagnostic built from public data: where the department's money goes compared with where the need is, the opportunities ranked, its program up for renewal evaluated and its public commitments tracked. Nothing is needed from the city to begin.
- Then
The city's own records
The city adds its records and documents under its data-use agreement. Staff use Zenith and Meridian, and Sidereal tracks what was committed.
- Then
Citywide
Every department on the same model, Parallax before new programs, and contracts that pay for results.
Departments

Public safety
See where incidents concentrate, block by block.
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Transportation
Find the blocks with the most injury crashes.
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Housing and development
Track housing pressure block by block.
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Budget and finance
Evaluate programs before they come up for renewal.
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City council