Standard activity IDs
for sustainable bonds
ACT-ID.io helps issuers, banks, SPO providers, investors, and vendors identify and compare the activities financed by labelled bonds.
Financed activities are described inconsistently
Across bond frameworks, SPO opinions, investor systems, and datasets, the same financed activity gets described in dozens of different ways.
"Offshore wind", "offshore wind generation", "offshore wind farm construction", "wind energy (offshore)" — all meaning the same thing, but written differently by every issuer, every SPO, and every data provider.
This inconsistency makes it harder to compare transactions, map frameworks to taxonomies, build reliable datasets, and report clearly to investors.
Without a shared reference, every comparison requires manual interpretation.
SPOs, investors, and data vendors each build their own mapping tables.
The same transaction is classified differently across providers.
A shared way to identify financed activities
Act IDs give every participant in the bond market a single, stable reference for the activities financed by labelled bonds — regardless of how each party describes them internally.
One identifier per activity
Each financed activity gets a unique, stable Act ID. Use it in frameworks, opinions, investor systems, and datasets.
Separate criteria from activities
The activity and the eligibility criteria that apply to it are tracked independently — giving clarity on what is being financed and under what conditions.
Mappings are first-class objects
Relationships to taxonomies, frameworks, and classifications are tracked as citable records with full provenance — not buried in static tables.
Built for every participant in the bond market
Issuers
Reference Act IDs in your framework and allocation reporting for clarity and comparability.
Learn more →Banks & Arrangers
Standardise activity references across transactions and improve internal mapping.
Learn more →SPO Providers
Reference Act IDs in opinions for consistent activity identification across issuers.
Learn more →Investors
Tag holdings and compare financed activities across issuers with a shared reference.
Learn more →Data & Software Vendors
Integrate Act IDs to improve interoperability and reduce bespoke mapping work.
Learn more →One activity. One identifier. Used everywhere.
Sector: Energy • Hash-derived identifier • Version 1
"Eligible Use of Proceeds: Offshore wind electricity generation (ACT-A-7K4M2Q)" "Activity confirmed as ACT-A-7K4M2Q — Offshore wind electricity generation" { "act_id": "ACT-A-7K4M2Q", "allocation_pct": 42.5 } isin,act_id,name
XS1234567890,ACT-A-7K4M2Q,Offshore wind Three steps to clearer activity identification
Find the activity
Search the ACT-ID.io registry for the activity that matches what is being financed. Browse by sector or search by name.
Browse the registry →Use the Act ID
Reference the Act ID in your bond framework, SPO annex, investor system, data feed, or reporting table.
See usage examples →Compare and map
Because everyone references the same ID, comparison across transactions and mapping to frameworks becomes straightforward.
Read the methodology →Designed for broad market adoption
ACT-ID.io is an open standard infrastructure project. Act IDs can be freely referenced in disclosures, frameworks, research, and public reporting.