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HF&H provides solid waste and recycling consulting services to public agencies, including SB 1383 compliance services, contracting assistance, rate studies, waste hauler audits, contract management, and recycling/organics program planning. Please contact Laith Ezzet, Sr. Vice President, at or go to


PEI is a design and manufacturing company specializing in biogas processing systems and equipment. If your project requires utility flare systems, enclosed flare systems, gas handling systems, blower systems, or compressed gas systems PEI has the pre-engineered, guaranteed system for your application!

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For over 100 years, Rehrig Pacific has believed the key to success lies in making products that give our customers a real advantage. In 1913, a young carpenter named Will Rehrig saw new possibilities emerging as the Second Industrial Revolution was in full swing. Read more..


Established in 1972, Agromin recycles organic waste and manufactures earth-friendly soil products from collected organic waste. It is one of the largest organics recyclers in the State of California, serving California communities. Agromin helps cities, counties and other jurisdictions with California SB 1383 procurement and compliance. Contact: Bill Camarillo,


Tetra Tech is a leading provider of consulting and engineering services. The Company supports government and commercial clients by providing innovative solutions focused on water, environment, infrastructure, resource management, energy, and international development. With 20,000 associates worldwide, Tetra Tech's capabilities span the entire project life cycle.

Weaver Consultants Group

Weaver Consultants Group® is a multi-disciplinary engineering and environmental consulting firm offering over 100 professional services, including science-based odor control. WCG brings a high level of expertise to the entire odor mitigation process, providing fully integrated, custom-engineered odor control delivery systems and proprietary chemical solutions to clients nationwide.

MME is a proven leader and has provided innovative solutions for customers in the governmental and private sectors since 1992. High quality products backed by committed, well trained employees have catapulted MME to the top of the municipal sales market. This is supported by our ranking as the #1 Vac-Con dealer in the United States and our top 5 rankings with other manufactures like Schwarze, Tiger and Stertil Koni.   More...


HDR solves complex waste issues with upfront studies, strategic planning, permitting, design and construction services. We deliver cost-effective, socially and environmentally-accepted solutions including economic evaluations, collection/waste characterization studies, facility/collection procurements, market/technology research, long-term strategic planning, and strategic communication services.


SCS, an environmental consulting and construction firm is celebrating its 50th year in business, SCS Engineers is producing technologies and programs that lower industrial operating costs and reduce greenhouse gases for private and public clients establishing goals to reduce their environmental impact.

Keith Walking Floor

KEITH® technology provides versatile material handling solutions for waste and recycling industries.  WALKING FLOOR® unloaders efficiently move a variety of materials including solid waste, recyclables, and C&D debris.  KEITH® WALKING FLOOR® systems offer greater payload capacity, increased safety, and durability.  KEITH® systems can be used in trailers and stationary applications.

Athens Services is a local, family-owned waste collection and recycling company that has been a fixture in the greater Los Angeles community for the past 60 years. We provide innovative, consistent, and quality environmental services to our more than  250,000 customers in the 50+ communities we serve. Through reuse, recycling, and composting, Athens diverts valuable resources from landfills.

What we do

We have created a frontier, mindful technology capable of recycling biowaste into a biomass that boosts biogas and biomethane production, both key pillars of a fair energy transition towards a net-zero economy.


J.R. Miller and Associates (JRMA) has successfully provided engineering services for solid waste and recycling facility owners, public entities, and design/build construction contractors since 1982. We’ve played a key role in designing over 150 solid waste facilities, including many award-winning material recovery facilities and transfer stations throughout the United States.

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