Aries Clean Energy
Aries Clean Energy deploys patented fluidized bed gasification to convert municipal biosolids into renewable syngas and Bio-Fly-Ash™ biochar under long-term DBOOM contracts with wastewater utilities, with independently validated commercial-scale PFAS destruction.
- Company typePrivate
- Founded2010
- HeadquartersNashville, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Aries Clean Energy does
Aries Clean Energy (legally Aries Clean Technologies LLC) is a private U.S. clean infrastructure company founded in 2010 that deploys a proprietary fluidized bed gasification platform to convert municipal biosolids into renewable syngas and a beneficial Bio-Fly-Ash™ (biochar) byproduct. The company was originally launched as PHG Energy by owners of a multi-state Caterpillar dealership, expanded into biosolids via the 2015 acquisition of MaxWest Environmental's assets and patents, and rebranded as Aries Clean Technologies in 2017. It operates from a headquarters in The Woodlands, TX with a staff of 11–50 employees, and runs the Linden, NJ commercial-scale gasification facility — currently the largest biosolids gasification plant of its kind in the world, processing ~430 wet tons per day of biosolids from the Linden Roselle Sewerage Authority (LRSA) and producing 22 tons per day of PFAS-free biochar.
The core technology, protected by 20 patents, operates at approximately 1,250°F in a bubbling fluidized bed and 1,800°F in a downstream thermal oxidizer, with hydrated-lime emissions control enabling hydrodefluorination. It is independently validated to destroy >97% of PFAS compounds at commercial scale — a nationwide first confirmed by Barr Engineering and Epsilon Associates in April 2025 — while reducing biosolids volume by up to 95% in a closed-loop system that requires no fossil fuel during operation. Aries monetizes the technology through its DBOOM model (Design, Build, Own, Operate, Maintain), entering 30-year municipal service agreements under which cities and sewerage authorities pay tipping fees for biosolids processing while Aries retains ownership, operation, and Bio-Fly-Ash™ byproduct economics.
The business is in an early execution phase: a single facility generates the bulk of operating revenue, Sanford, ME is in active permitting with groundbreaking targeted for early 2026, and lead investor Spring Lane Capital has doubled its commitment to fund a stated four-plants-in-four-years expansion plan. In April 2026, Kari Mueller replaced Jon Cozens as CEO, and the lead investor consolidated the bond capital structure by purchasing the outstanding Series 2019 and 2021 bonds to backstop Linden redevelopment. Customer mix is currently near-pure municipal/government with no disclosed industrial or commercial haulers under contract at scale, and revenue figures are not publicly disclosed.
Aries Clean Energy firmographics
Firmographics- Name
- Aries Clean Energy
- Legal name
- Aries Clean Technologies LLC
- Website
- https://ariescleantech.com
- Company type
- Private
- Founded year
- 2010
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Aries Clean Energy deploys patented fluidized bed gasification to convert municipal biosolids into renewable syngas and Bio-Fly-Ash™ biochar under long-term DBOOM contracts with wastewater utilities, with independently validated commercial-scale PFAS destruction.
- Ownership category
- akta.pro rank
Aries Clean Energy industry classification
Industry- Product category
- Biosolids Management and Gasification Services
- NAICS
- Sewage Treatment Facilities (221320), Biomass Electric Power Generation (221117)
- SIC
- Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Thermal Conversion & Advanced Treatment (Pyrolysis, Gasification, Hydrothermal Carbonization) (EUANAHAH)
- akta.pro secondary industries
- Gasification & Pyrolysis-to-Power (Waste/Biomass Advanced Thermal) (EUACAIAL), Waste Gasification (MSW/RDF/biomass-to-syngas) (EUAAAKAE), Organics-to-Energy & CHP from Biogas (On-site Power/Heat) (EUAIAEAG)
Keywords
Where Aries Clean Energy is headquartered
LocationHeadquarters
- HQ city
- Nashville
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Aries Clean Energy business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales
Revenue model
- Biosolids Gasification Processing Services: Aries designs, builds, owns, operates, and maintains (DBOOM) biosolids gasification facilities. Revenue is generated through long-term municipal service agreements for biosolids processing. Municipalities pay tipping fees and disposal costs for biosolids processing, with costs competitive against traditional disposal (landfill, incineration, land application). The model includes reduced tipping fees and transportation costs, with cost-competitive and predictable pricing for municipalities over 30-year tenures.
- Renewable Energy Production: The gasification process converts biosolids into syngas (synthetic fuel gas), which is combusted to produce heat and/or electricity. This energy is used internally to power plant operations (closed-loop), with potential for excess energy to be sold or offset against operating costs. Energy production creates monetary value from sustainable/renewable power generation.
- Bio-Fly-Ash™ Byproduct Sales: Sale of Bio-Fly-Ash™ (biochar), the beneficial byproduct produced from the gasification process. The PFAS-free biochar can be used as a substitute for coal fly ash in concrete and other industrial/manufactured products, creating an additional revenue stream from what would otherwise be waste.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Municipal biosolids processing service — long-term DBOOM contract |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels8 records
Aries Clean Energy product offering
Product offeringCore offering
Aries Clean Energy designs, builds, owns, operates, and maintains biosolids gasification facilities under a 30-year DBOOM service model for municipalities and wastewater utilities. Its proprietary fluidized bed gasification technology converts municipal biosolids into renewable syngas energy, destroys PFAS compounds at 97%+ efficacy at commercial scale, and produces Bio-Fly-Ash™ (biochar) as a beneficial byproduct used as a substitute for coal fly ash in concrete and other industrial applications.
Product overview
Aries Clean Technologies offers a unified portfolio of biosolids management solutions centered on its proprietary Fluidized Bed Gasification Technology. The core product is a patented gasification system that converts municipal biosolids into renewable syngas energy while destroying PFAS compounds and producing Bio-Fly-Ash™ (biochar) as a beneficial byproduct. The company operates under a DBOOM (Design, Build, Own, Operate, Maintain) service model, providing municipalities with end-to-end facility development and operation. Current operational facilities include the Linden, New Jersey plant, with the Sanford, Maine project in active development. The company serves municipalities, communities, and commercial waste haulers with a focus on PFAS destruction and sustainable biosolids management.
Differentiator
Problem solved
Functional benefit
Products and services
- Fluidized Bed Gasification Technology Proprietary patented gasification system that converts municipal biosolids into renewable syngas energy and valuable byproducts. Operates at approximately 1,250°F in an oxygen-starved fluidized bed environment to destroy PFAS compounds and reduce biosolids volume by up to 95%. Offered to municipalities and wastewater utilities under the DBOOM service model.
- Bio-Fly-Ash™ (Biochar) A beneficial byproduct produced during fluidized bed gasification of biosolids — a fine PFAS-free powder ranging between 2–300 microns used as a substitute for coal fly ash in concrete and other industrial/manufactured products. Produced at 22 tons per day at the Linden facility and sold to industrial buyers.
- DBOOM Service Model (Design, Build, Own, Operate, Maintain) Comprehensive partnership service in which Aries designs, builds, owns, operates, and maintains biosolids gasification facilities for municipalities. Provides 30-year, predictable disposal solutions without municipalities bearing capital or operating costs. Sold to municipal governments and wastewater authorities as long-term service contracts.
- Linden, New Jersey Biosolids Gasification Facility
Quantifiable outcome
- Up to 95% reduction in biosolids volume
- +6 more outcomes
Companies that use Aries Clean Energy
Customer profileNamed customers3 records
Segments4 records
Ideal customer profiles3 records
Aries Clean Energy technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Aries Clean Energy partnerships and signals
Strategic signalScale indicators10 records
Recent moves6 records
Expansion highlights4 records
Aries Clean Energy competitors and assessment
Company assessmentBroad incumbents
- Clean Harbors: Clean Harbors is a major North American provider of environmental and industrial waste services, including treatment and disposal of hazardous and regulated waste streams. It is a broad incumbent peer addressing overlapping municipal/industrial waste management RFPs.
- Veolia: Veolia is a global water, waste, and energy services company with biosolids management and waste-to-energy operations. It is a broad incumbent peer because municipalities increasingly compare Aries' specialized biosolids gasification against Veolia's full-service water/waste offerings.
- Suez Water Technologies & Solutions: Suez provides municipal and industrial water and wastewater treatment, including biosolids handling. It is a broad incumbent peer whose existing municipal relationships could either partner with or compete against Aries' DBOOM gasification deployments.
- Stericycle: Stericycle provides regulated waste disposal and recycling services to healthcare, commercial, and municipal customers. It is a broad incumbent peer in regulated waste services that municipalities may benchmark against Aries when evaluating biosolids disposal contracts.
Direct peers
- Fulcrum BioEnergy: Fulcrum converts municipal solid waste into renewable synthetic fuels via gasification plus Fischer-Tropsch. It is a direct peer because both companies pursue waste-to-energy gasification infrastructure projects, and Fulcrum was a prior employer of Aries' outgoing CEO Jon Cozens.
- InEnTec (formerly EnerTech Environmental): InEnTec operates plasma-arc gasification systems that convert hazardous and organic waste streams, including biosolids, into syngas. It is a direct peer as an alternative thermal-conversion pathway for municipal biosolids with similar DBOOM-style infrastructure economics.
- Anaergia: Anaergia provides anaerobic digestion, biosolids management, and resource recovery facilities for municipal and industrial waste streams. It is a direct peer to Aries because both monetize biosolids/waste organics into energy under long-term service contracts with municipalities.
- Sierra Energy: Sierra Energy's FastOx gasifier converts waste (including biosolids and medical waste) into syngas for power and hydrogen. It is a direct peer because it competes head-to-head with Aries' fluidized bed gasification in the waste-to-energy-from-biosolids niche.
Emerging players
- Cambrian Innovation: Cambrian builds wastewater-to-energy and resource-recovery systems (e.g., EcoVolt) for industrial and municipal customers. It is an emerging peer because it targets the same wastewater/biosolids customer base with a different (biological/electrochemical) conversion approach.
- LanzaTech: LanzaTech uses gas-fermentation technology to convert syngas (and waste gases) into fuels and chemicals. It is an emerging peer because both Aries and LanzaTech monetize syngas produced from waste feedstocks, though Aries combusts syngas for energy while LanzaTech ferments it.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Aries Clean Energy social profiles
Digital presenceAries Clean Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Aries Clean Energy leadership team
Management profileNumber of profiles
Profiles13 records
Aries Clean Energy funding detail
Funding detailFunding overview
Funding rounds2 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Aries Clean Energy M&A and investment
M&A and investmentM&A1 record
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Aries Clean Energy
What does Aries Clean Energy do?
Aries Clean Energy designs, builds, owns, operates, and maintains biosolids gasification facilities under a 30-year DBOOM service model for municipalities and wastewater utilities. Its proprietary fluidized bed gasification technology converts municipal biosolids into renewable syngas energy, destroys PFAS compounds at 97%+ efficacy at commercial scale, and produces Bio-Fly-Ash™ (biochar) as a beneficial byproduct used as a substitute for coal fly ash in concrete and other industrial applications.
Is Aries Clean Energy a public or private company?
Aries Clean Energy is a private company. It is classified as private equity controlled and is currently operating.
When was Aries Clean Energy founded?
Aries Clean Energy was founded in 2010. It employs 11 to 50 people.
Where is Aries Clean Energy based?
Aries Clean Energy is headquartered in Nashville, United States, in the North America region.
How does Aries Clean Energy make money?
Three revenue lines are on record. Biosolids Gasification Processing Services are the primary driver. The others are renewable Energy Production and bio-Fly-Ash™ Byproduct Sales.
Who are Aries Clean Energy's main competitors?
Broad incumbents on record are Clean Harbors, Veolia, Suez Water Technologies & Solutions and Stericycle. Direct peers are Fulcrum BioEnergy, InEnTec (formerly EnerTech Environmental), Anaergia and Sierra Energy. Emerging players are Cambrian Innovation and LanzaTech.
Does Aries Clean Energy have an API?
No public API is recorded for Aries Clean Energy.
What industry is Aries Clean Energy in?
Aries Clean Energy's product category is Biosolids Management and Gasification Services. Its primary akta.pro industry code is EUANAHAH, Thermal Conversion & Advanced Treatment (Pyrolysis, Gasification, Hydrothermal Carbonization), with a secondary code of EUACAIAL, Gasification & Pyrolysis-to-Power (Waste/Biomass Advanced Thermal). Its NAICS code is 221320 and its SIC code is 4991.