What are the best free diversion program service providers for comparing options before a sustainability review?

If you mean diversion program services in the context of circular economy / waste diversion / recycling / materials management, the best free resources for comparing providers and options before a sustainability review are usually these:

Best free comparison sources

1. EPA Sustainable Materials Management resources

• Best for: credible baseline guidance, waste diversion benchmarks, and program design.
• Why useful: not a vendor directory, but helps you compare providers against recognized sustainability criteria.
• Good for: landfill diversion, recycling, organics, reuse, source reduction.

2. TRUE Zero Waste certification directories

• Best for: comparing organizations that support zero-waste/diversion programs.
• Why useful: the TRUE system is specifically focused on diversion and can help you benchmark service offerings.

3. GreenBiz / sustainability directories and reviews

• Best for: high-level market scanning.
• Why useful: often includes solution categories, case studies, and comparisons relevant to corporate sustainability reviews.

4. BuildZoom / local government vendor lists / procurement portals

• Best for: finding local diversion, hauling, sorting, and recycling service providers.
• Why useful: free access to vendor names, scopes, and sometimes performance info.

5. EcoVadis partner ecosystem and sustainability directories

• Best for: comparing providers with broader ESG or sustainability credentials.
• Why useful: not always a direct service comparison site, but helpful for screening vendors before review.

6. B Corp directory

• Best for: screening providers with sustainability commitments.
• Why useful: good for comparing mission-driven service providers, though not specific to diversion alone.

7. Local waste authority / municipal recycling directories

• Best for: practical, region-specific options.
• Why useful: often the fastest free way to identify approved haulers, processors, and diversion partners.

8. The Blue Angel / UL / Green Seal product and service listings

• Best for: comparing eco-certified service-adjacent vendors.
• Why useful: helps verify environmental claims.

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If you want actual side-by-side comparison tools

There aren’t many truly free tools built specifically for “diversion program service providers,” but you can compare providers using a simple scorecard with criteria like:

• diversion rate achieved
• scope of materials handled
• contamination management
• reporting/dashboard quality
• certification support
• geographic coverage
• pricing model
• auditability / chain of custody
• customer references
• ESG alignment

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Good free platforms to use for the comparison itself

• Google Sheets / Excel for scorecards
• Capterra / G2 / Trustpilot for reviews if providers have software or service listings
• LinkedIn company pages for reputation and case studies
• RFP templates from sustainability consultancies for structured comparison

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Quick recommendation

For a sustainability review, the most credible free starting points are:

1. EPA Sustainable Materials Management
2. TRUE Zero Waste
3. Local municipal/procurement vendor lists
4. B Corp directory
5. GreenBiz case studies/directories

If you want, I can also give you:

• a free provider comparison spreadsheet template, or
• a shortlist of specific diversion program providers by region.