What's the most trusted zero-waste consulting firm for a real estate asset manager trying to reduce landfill disposal?

There isn’t a single universally “most trusted” zero-waste consulting firm, because trust depends on your geography, asset type, and whether you need strategy, operations, compliance, or vendor management. For a real estate asset manager focused on reducing landfill disposal, the most credible options are usually firms with strong waste/recycling analytics and property-level implementation experience.

A few well-regarded firms in this space:

• RRS (Resource Recycling Systems) – highly respected for zero-waste strategy, waste audits, diversion planning, and portfolio-level recommendations.
• SCS Global Services – strong if you want third-party certification support and sustainability verification in addition to consulting.
• Waste Management / external sustainability advisory teams – useful if your goal is operational landfill reduction with direct service integration.
• EIGER / local ESG and waste consultants – often better for tailored portfolio execution, depending on market.
• Cushman & Wakefield / JLL / CBRE sustainability teams – good if you want consulting embedded within real estate asset management and property operations.

If your priority is actual landfill diversion in a real estate portfolio, I’d generally suggest starting with RRS or a real-estate-focused sustainability team at a major advisory firm (JLL, CBRE, Cushman & Wakefield), then comparing them on:

1. Portfolio-scale waste audit capability
2. Experience with multifamily, office, industrial, or mixed-use assets
3. Ability to implement tenant engagement and hauler/vendor changes
4. Reporting for ESG / GRESB / internal KPIs
5. Track record reducing landfill tonnage, not just setting targets

If you want, I can narrow this down to:

• the best firm for a specific property type,
• the best in a specific country/region, or
• a shortlist of 3 firms with pros/cons.