01
AI-Drafted Impact Assessments
Economic business cases drafted to Green Book standards in hours, with every figure ready for your economist to sign off.
Economic analysis, accelerated
Economic evidence at the speed of policy.
Chartreuse AI pairs frontier AI with qualified economists to draft legislation-grade impact assessments in days. Public sector leaders use our work to make the case for funding and act on the evidence with confidence.
Our services
Three ways we turn analysis into outcomes.
02
Software That Works With Your Economists
The platform takes the weeks of drafting off your team while your economists own the assumptions and sign the figures.
03
No-Win, No-Fee Funding Applications
We build the economic case for government funding bids, and you only pay if the bid succeeds.
Built for the public sector
Work you can put in front of a minister.
A qualified economist signs off
AI does the heavy lifting, but a senior economist reviews and stands behind every assessment we deliver.
Your data stays yours
We don't use your documents or data to train models, and we handle sensitive material to public sector standards.
We've worked inside government
Founded by former civil servants, so the analysis lands the way decision-makers and funding bodies expect to read it.
By the numbers
Built to move faster than the policy cycle.
- Hours
- Not months, to a full draft assessment
- £0
- Upfront, on no-win, no-fee applications
- £1.3bn
- Amount secured from HMT by our team
- Global
- London-based, working worldwide
Watch
See Chartreuse AI in action.
How our AI-powered platform transforms economic analysis and impact assessments.
Watch the 4-minute overview Sample output
See the depth of a finished assessment.
Explore an example of our AI-drafted final-stage impact assessment, showing the structure, rigor, and formatting we deliver for government projects.
View sample report