Rail and transit infrastructure
Multi-year supply and maintenance contracts with steel, labour and energy escalators, reset quarterly across dozens of suppliers.
One formula per contract, computed from BLS and national series, confirmed by each supplier before invoicing.
example: 40+ suppliers, quarterly cycle
Steel and heavy fabrication
Long fabrication contracts priced on a steel PPI plus a labour component, argued line by line at every reset.
The basket, the lag and the base period are explicit. Both sides see the same component contributions.
example: PPI 55% / ECI 30% / fixed 15%
Defence and aerospace programmes
Decade-long programmes with economic price adjustment clauses referencing several official indices and strict audit requirements.
Versioned data, formula version locks, and a tamper-evident export for programme audit.
example: 6-index basket, annual reset
Facilities and services management
Portfolios of service contracts tied to CPI or ECI, each with slightly different wording and reset dates.
Clause analysis proposes the mapping per contract, you confirm, and a calendar tracks every reset.
example: 200+ contracts, staggered resets