Tier 1: Audited Certified:

The highest assurance: Independently audited by external experts, ensuring rigorous on-site inspections and compliance checks.

• On-site audits (e.g., Green Key yearly cycles).
• Rigorous Global Standards: Tier 1 hotels meet stringent international benchmarks like GSTC criteria through independent audits (many GSTC-Recognised, others equivalent in rigour).
• Transparent public verification.
  Examples: Green Key, GSTC, Green Globe, EarthCheck, Natures Best.

Tier 2: Programme Verified:

Proven programmes with documented evidence –  our inclusion confirms active participation and impact.

• E.g., B Corp assessments.
• E.g., Fair Trade Tourism commitments.
• Measurable eco/social actions.
  Examples: SLH Considerate Collection, B Corp, & Fair Trade Tourism.

Why Trust Our System? Book Eco Hotels manually verifies every listing for authenticity – no greenwashing. 

Book Eco Hotels Methodology

Tier 1: Certifications (e.g., Green Key)

Manually curates and cross-checks via public spreadsheets/directories like Green Key’s certified sites list. We verify current status and expiry dates directly from the source.

Tier 2: Programme Verified (e.g., B Corp)

Confirms active participation using official directories:

• • B Corp Directory

  • Fair Trade Tourism Explore

B Corp status lasts 3 years before full re-assessment (no fixed expiry, but must re-certify every 3 years).

This method ensures authenticity across both tiers – no greenwashing. Quarterly reviews for ongoing status.

Greenwashing Policy & Re-verification

No greenwashing – ever. We remove hotels immediately if certifications expire or can’t be verified via public sources. Only active, confirmed status qualifies.

How often do we re-verify? Quarterly. This is our rigorous best as a curated directory – transparent and scalable.

Last verified: Feb 2026. Questions? Contact us.