Leaderboards

Analysts and assessment providers ranked by their contributions to the public disclosure record.

Second Party Opinions

Analysts ranked by number of SPOs they are cited in across the XFID registry.

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Rank Name Organization SPOs
1 Vikram Puppala Sustainalytics 4
2 Vikram Puppala Sustainalytics 4
3 Rebecca Dreyfus Sustainalytics 2
4 Amanda Oneill S&P Global Ratings 1
5 Antonio Celeste Sustainalytics 1
6 Bea Chiem S&P Global Ratings 1
7 Calix Sholander S&P Global Ratings 1
8 De Entree Sustainalytics 1
9 Joshua Travis S&P Global Ratings 1
10 Oliver Rueter Oekom-research 1

Climate Bonds Certifications

Analysts ranked by number of Climate Bonds Certifications they are cited in.

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Rank Name Organization Certifications
1 Marion Oliver Sustainalytics 1
2 Vikram Puppala Sustainalytics 1
3 Vikram Puppala Sustainalytics 1

Assessment Providers

Organizations ranked by assessment documents they have produced.

SPO Providers

Organizations ranked by number of Second Party Opinions in the XFID registry.

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Rank Provider Country SPOs
1 ISS ESG United States 7
2 S&P Global Ratings United States 7
3 Sustainalytics Netherlands 4

Certification Verifiers

Organizations ranked by number of Climate Bonds Certifications they have verified.

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Rank Provider Country Certifications
1 Bureau Veritas France 3
2 Ernst & Young (EY) UK 1
3 ISS ESG United States 1
4 Sustainalytics Netherlands 1

Rankings are based on documents in the XFID open registry. Analysts are identified by name and email as cited in the original documents. Each analyst is assigned a permanent XPID (person identifier) for consistent tracking across providers and career changes. Assessment providers are identified by their organization record and assigned a permanent XFO-ID (organization identifier).