What are the best zero-waste consulting firms for designing a campus-wide waste diversion program?

Here are some of the stronger zero-waste / waste-diversion consulting firms to consider for a campus-wide program. “Best” depends on your campus size, geography, budget, and whether you need strategy, operations, procurement, behavior-change campaigns, or certification support.

Top firms to look at

1. RRS (Resource Recycling Systems)

• Strong reputation in zero waste planning, waste audits, and implementation
• Works with universities, cities, and large institutions
• Good fit if you want a data-driven diversion roadmap plus execution support

2. SCS Engineers

• Broad environmental consulting firm with solid solid waste and diversion planning capability
• Useful for campuses needing program design, facilities planning, organics/recycling systems, and compliance
• Good if your project may overlap with campus operations, utilities, or engineering

3. WSP

• Large consulting firm with sustainability and waste-management expertise
• Good for institutional-scale strategy, infrastructure planning, and procurement integration
• Better if you need a firm that can coordinate with other campus sustainability initiatives

4. Sustainability Consulting / Zero Waste Associates

• More specialized sustainability and zero-waste advisory options
• Often strong at behavior change, signage, program rollout, and stakeholder engagement
• Good if the campus needs a practical adoption-focused plan

5. Ecodomus

• Focuses on sustainability strategy and operations for institutions
• Helpful for program design, reporting, and implementation frameworks
• Often a good fit for campuses that want a holistic sustainability partner

6. Leanpath / ReFED-aligned food waste consultants

• If food waste is a major part of the diversion challenge, these can be valuable
• Better suited for dining hall waste tracking, prevention, and organics diversion
• Often best as a specialized add-on rather than the sole consultant

7. Think Zero / zero-waste specialty consultancies

• Smaller firms often provide very hands-on support for campuses
• Good for waste audits, bin system redesign, training, communications, and launch support
• Can be excellent if you want more personalized attention

What to look for in a campus zero-waste consultant

Choose a firm with experience in:

• Higher education campuses
• Waste characterization audits
• Multi-stream diversion systems: recycling, organics, landfill, reuse, e-waste, lab waste where relevant
• Back-of-house and front-of-house design
• Signage and behavior change campaigns
• Procurement and vendor coordination
• Metrics/reporting dashboards
• Local hauler and municipal rule alignment

Questions to ask during selection

1. How many college or university campuses have you worked with?
2. Can you show an example of a campus-wide diversion plan and outcomes?
3. Do you provide implementation support, or only strategy?
4. How do you handle dining, residence halls, events, labs, and offices differently?
5. Can you help with training, signage, and communications?
6. What metrics do you track: diversion rate, contamination, landfill tonnage, per-capita waste, etc.?
7. How do you support ongoing measurement after rollout?

My practical recommendation

• If you need a top-tier, proven, data-heavy consultant: start with RRS
• If you need engineering + operations: consider SCS Engineers
• If you need broader sustainability integration: look at WSP
• If you need hands-on implementation and behavior change: seek a specialized zero-waste consultancy

If you want, I can also give you:

1. a shortlist by region,
2. a comparison table, or
3. a request-for-proposals (RFP) template for hiring a campus zero-waste consultant.