S E P I
Strategic Environmental Performance Index
Decision-grade environmental performance benchmarking — comparability-first, audit-ready, and transparent by design.
Standardised environmental pressure signals derived from publicly available corporate information
Distance-to-reference benchmarking (best practices without “blame & shame”)
Built for boards, investors and public institutions
Built for decision-making
Boards & Management
Benchmark peers, identify hotspots, and prioritise levers and capital allocation.
Investors
Comparable signals across companies and sectors, with transparent assumptions and explicit limitations.
Public institutions
Sector baselines and reference distances to support policy dialogue, monitoring, and prioritisation.
SEPI is designed as a public-interest benchmarking initiative developed under the Eric Zangger Stiftung (CH).
Benchmarking without “blame & shame”
SEPI communicates results primarily as distance-to-reference (Swiss benchmark and sector reference), highlighting best practices and improvement potential. Internal ranking logic may exist for validation, while public communication prioritises learning and comparability.
Reference points: Swiss baseline and sector reference
Focus: distance-to-reference and peer comparability
Governance: documented assumptions and explicit limitations
What SEPI is
SEPI translates public corporate disclosures into standardised environmental performance signals and distance-to-reference benchmarks.
Comparable across companies and sectors
Documented assumptions and explicit limitations
Designed for boards, investors and public institutions
What SEPI is not
Not an ESG questionnaire score
Not a black-box rating
Not a certification or label
Not a replacement for issuer-level due diligence
Method in four steps
Data intake
Publicly available corporate disclosures and structured sources.
KPI mapping & normalisation
Standardised KPI definitions and comparability-first normalisation.
Scenario weighting & robustness
Scenario-based weighting with high-level robustness checks.
Benchmark outputs
Public outputs released only under the validated publication roadmap.
Transparency commitment
Key assumptions, limitations, and versioning principles are documented and maintained.
Governance and assurance-readiness
Consistent definitions and documented assumptions
Versioning, change logs and reproducibility discipline
Explicit treatment of missing data and coverage
Separation of measured pressures vs narrative “levers”
Correction mechanism for data issues
Publication roadmap
Now: trust-layer website and stakeholder alignment
2026: expert review and deliverable refinement
December 2026: first public digital release (publication pack)
Scope: Switzerland (Phase 1) — Planned European expansion (Phase 2).
For the high-level approach, see Methodology. For governance and release gating, see Governance. For timing, see Roadmap.