anaerobic digestion

Agri-Cycle is an organics recycling service based in South Portland, Maine, with collection routes throughout New England and the Mid-Atlantic. Founded in 2011, it collects commercial food waste from grocers, restaurants, schools, hospitals, breweries and food producers and diverts it from landfills, converting it through de-packaging, anaerobic digestion, composting and animal feed into renewable energy, compost and animal feed.

compostingde-packagingfood waste collectionroll-off container servicevacuum-pump tanker collection

Anaergia is a mission-driven company that develops turnkey organic waste recycling facilities, transforming wastewater, municipal solid waste, agricultural and food processing waste into carbon-negative renewable fuel, clean water, and natural fertilizer. It offers proprietary waste-to-value technologies including waste separation, high-solids anaerobic digestion, and biogas upgrading and conditioning, with projects and installations in 17 countries across four continents.

biogas conditioningbiogas upgradingdesign-build-own-operateequipment designequipment manufacturinghigh solids digestionoperations and maintenanceorganics separationprocess engineeringproject executionproject financingproject integrationwaste separation

Best Choice Environmental, Inc. (BCE) was organized in 2015 by Dave Steward to provide generators in Wisconsin and Minnesota with industrial and hazardous waste management services. BCE operates a permitted 20,000 sq ft facility in Somerset, WI, permitted in 2021, to bulk containerized wastes for recycling, waste to energy, wastewater treatment, or disposal. The company does not own any end facility but has relationships with all types of disposal facilities.

bulk containerization of wastesfuel blendingincinerationrecyclingsecured destructionwaste disposalwaste-to-energywaste transportationwastewater treatment

BTS Bioenergy, formerly Bioenergy Devco, develops, owns and operates anaerobic digestion facilities that recycle commercial organic residuals into renewable natural gas (RNG) and nutrient-rich soil amendments. Its Maryland Bioenergy Center in Jessup, Maryland, provides a recycling outlet for approved bulk food waste and liquid organics from commercial generators and haulers.

organics recyclingrenewable natural gas productionsoil amendment production

Biogasco LLC builds, owns, and operates Anaerobic Digestion and Renewable Natural Gas (RNG) projects, structured as both an EPC general contractor and a developer. The company provides a full turnkey model from initial feasibility analysis through physical construction to long-term monetization and field operations, focused on building a sustainable RNG business model for dairy farmers in Minnesota and across North America.

biodigester constructionEPC general contractingfeasibility analysisfield operationsproject developmentRNG off-take and optimizationRNG plant construction

quasar energy group (QEG) designs, builds, operates, and advances anaerobic digestion systems for municipalities, agriculture, and industry. QEG manages the full lifecycle of organic waste from feedstock sourcing and transport to digestion, energy recovery, nutrient reuse, and compliance, transforming waste into renewable energy, regenerative fertilizers, and low-carbon fuels. The company has an in-house lab, PhD-led research, and more than 13 federally funded projects (DOE, USDA, DOD).

design and engineeringfeedstock procurementlaboratory testingnutrient reuse and land applicationoperations and maintenancepermitting and commissioningRegulatory Complianceresearch and development

CryptEco Innovations Inc. is a Minnesota C-Corporation, incorporated September 2025, and a wholly-owned subsidiary of Leovara Management LLC. It is the operating technology company behind the Auric™ platform, an integrated waste-to-energy-to-food system combining an anaerobic digester, combined heat and power unit, and controlled environment agriculture stack orchestrated by a single operating system. It turns agricultural waste into electricity, renewable natural gas, captured CO₂, and food.

combined heat and power (CHP)controlled environment agricultureremote operationssoftware developmentsystem integration

Dem-Con is a third-generation family-owned business serving the Twin Cities and greater Minnesota since 1965. What started as a small company focused on responsible waste management has grown into an integrated solid waste processing company providing recycling, processing and disposal, while prioritizing sustainable solutions and a robust education program. Owners Mark Pahl and Jason Haus.

disposaldumpster rentalgasificationlandfillsrecyclingtransportation logisticswaste processing

ETHOS Energy and Environmental Partners provides solids control and water separation operations for agriculture, environmental, and energy industries. The company offers patented centrifuge equipment, dredging services, wastewater treatment systems, and drilling fluid management, aiming to reduce clients' environmental footprint and operating costs.

advanced oxidationbarite recoverybiological and chemical treatmentcentrifugal separationdesludgingdewateringdredgingliner repairs and maintenancemembrane filtrationresource recoverysludge characterization and surveyingvegetation removal and management

Veolia provides water technology and process expertise to solve industrial water, wastewater and process challenges. It delivers products, processes and solutions across industries including chemical processing, food and beverage, microelectronics, metals and mining, municipal, pharma and life sciences, power, pulp and paper, textile, and oil, gas and renewables. The site notes Veolia achieved full ownership of WTS in 2025.

desalinationelectrodialysisozone systemsprocess design and engineeringreverse osmosisultrafiltrationUV disinfectionwastewater treatmentwater treatment

Calgren is a renewable energy company based in Pixley, California, that produces ethanol from corn and renewable natural gas from dairy manure digesters. It operates a cluster of nearly twenty dairy manure digesters, a biodiesel plant, and carbon capture, utilization and storage (CCUS) initiatives, including a partnership with the Department of Energy CarbonSAFE program.

biodiesel productionbiogas upgrading to RNGcarbon capture utilization and storageethanol production