Deterministic Assurance for Public Procurement
Counterfactual
Procurement Engine
The Counterfactual Procurement Engine is a new category of procurement assurance. It evaluates procurement decisions against transparent, rule-based benchmarks to produce consistent, auditable and explainable outcomes. .

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Why CPE Exists
Public‑sector procurement is high‑value, high‑risk, and increasingly scrutinised. Traditional assurance methods rely on manual review, subjective judgement, inconsistent interpretation and retrospective analysis.
CPE replaces this with a deterministic, rule based system that evaluates procurement in a way that is:
- transparent
- auditable
- repeatable
- explainable
- aligned with governance and assurance frameworks
This is assurance engineered for modern public sector accountability.
What CPE Does
CPE evaluates procurement decisions by comparing them against a structured, version-controlled benchmark - the Counterfactual Award Benchmark (CAB) - and producing:
- evidence objects for every rule evaluation
- domain-level and contract-level scores
- severity assessments
- full audit and replay capability
- clear, defensible, reasoning for every outcome
This allows organisations to understand not only what the result is, but why it was produced..
