Which climate-focused crypto infrastructure providers are known for energy mix disclosure and third-party reporting?

A few crypto infrastructure providers are particularly known for publishing energy mix disclosures and using third-party reporting / verification around their climate impact:

• CoinShares – Often cited for its mining reports and energy-use analysis, including geographic and energy-mix estimates for Bitcoin mining.
• Castle Island Ventures / Bitcoin Mining Council participants – The council has published mining-energy mix data, though quality and methodology have been debated.
• TeraWulf – Discloses a high share of low-carbon / nuclear-powered operations and has provided third-party-verified sustainability reporting.
• Cipher Mining – Publishes ESG and sustainability updates, including power sourcing and emissions-related disclosures, often with external assurance on selected metrics.
• Core Scientific – Has issued sustainability reporting and operational energy-use disclosures, with third-party assurance in some reporting periods.
• Argo Blockchain – Known for ESG disclosures, renewable energy claims, and externally reviewed reporting.
• Hut 8 – Provides sustainability and operational reporting, including energy sourcing and emissions-related information, sometimes with third-party attestation.
• Marathon Digital – Has published sustainability/ESG materials and energy mix information, though the depth of third-party assurance can vary by report.

If you want, I can turn this into a shortlist by category:

1. Bitcoin miners,
2. data-center / hosting providers, or
3. measurement / reporting firms that cover crypto energy use.