Greenthesis Group
Greenthesis Group is an integrated Italian environmental services platform providing waste treatment, environmental remediation, waste-to-energy, and biogas/biomethane production through 30+ subsidiaries serving industrial clients, government agencies, agri-food companies, and energy utilities across Italy and select international markets.
- Company typePublic
- Founded1998
- HeadquartersSegrate, Italy
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What Greenthesis Group does
Greenthesis Group is an integrated Italian environmental services platform headquartered in Segrate (Milan) that provides waste treatment, recovery and disposal services, environmental remediation of contaminated industrial sites, waste-to-energy generation, and renewable energy production from biogas and biomethane. The Group operates a network of 30+ subsidiaries and treatment facilities across Italy, serving industrial waste producers, government agencies and municipalities (notably for Site of National Interest projects including Bagnoli-Coroglio and Brescia-Caffaro), the agri-food sector (via subsidiary GTH Agromet), and energy utilities including A2A for district heating serving 11,000+ homes. Core technologies include Hydrothermal Carbonization (HTC) developed by subsidiary CarboREM, which reduces sludge volume by 50% and increases biogas yield, alongside cogeneration systems, biogas-to-biomethane upgrading, and mobile treatment plants for contaminated soils.
The business model is asset-heavy and contract-based, generating revenue through transaction fees on waste treatment volumes, public procurement tenders for remediation projects, and sale of recovered energy and biomethane. Pricing is quote-based and not publicly disclosed, varying by waste type, volume, and regulatory requirements. The Group has pursued aggressive consolidation since 2022, completing acquisitions of CarboREM (60%, 2022), Bigaran (70%, 2023), five Ethan Group companies (80%, 2024), Bra Servizi (49%, 2024), Glob Eco (60%, 2025), and Friul Julia Appalti (75%, 2025). In October 2024, private equity firm Patrizia completed a €340 million take-private transaction, and in June 2025 the Group secured €215 million in medium-long term financing from Natixis and Intesa Sanpaolo to fund continued organic and inorganic growth.
Go-to-market combines direct enterprise sales to industrial clients, competitive public procurement bidding for government remediation contracts (often via temporary business groupings/RTI with partners like Hera), and event-driven visibility through industry exhibitions such as Ecomondo. The Group holds Cerved B1.1 Investment Grade credit rating and Class A ESG rating, with extensive certifications (ISO 9001, 14001, 45001, EMAS, SOA) supporting its regulatory moat in the Italian market.
Greenthesis Group firmographics
Firmographics- Name
- Greenthesis Group
- Legal name
- Greenthesis S.p.A.
- Website
- https://greenthesisgroup.com
- Company type
- Public
- Founded year
- 1998
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Greenthesis Group is an integrated Italian environmental services platform providing waste treatment, environmental remediation, waste-to-energy, and biogas/biomethane production through 30+ subsidiaries serving industrial clients, government agencies, agri-food companies, and energy utilities across Italy and select international markets.
- Ownership category
- akta.pro rank
Greenthesis Group industry classification
Industry- Product category
- Environmental Services
- NAICS
- Waste Management and Remediation Services (562), Sewage Treatment Facilities (221320), Solid Waste Combustors and Incinerators (562213), Compost Manufacturing (325315), Fertilizer and Compost Manufacturing (32531)
- SIC
- Refuse Systems (4953), Sanitary Services (4950), Hazardous Waste Management (4955), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Organics Collection & Processing (Composting/Anaerobic Digestion) (IMAIAFAF)
- akta.pro secondary industries
- Organics-to-Energy & CHP from Biogas (On-site Power/Heat) (EUAIAEAG), Composting & Co-Composting (Biosolids + Green Waste) (EUANAHAF), Flue Gas Cleaning & Air Pollution Control for Biomass/WtE (FGD, SCR/SNCR, ESP/Baghouse, Dioxins/Mercury) (EUAAALAH), Organics & Composting Programs (Food Waste, Green Waste) (BPABALAC), Organics Facility Development & Operations Services (Design/Build, O&M, Permitting) (EUAIAEAJ), Organics Contamination Auditing, Education & Compliance Services (BPALAEAJ)
Keywords
Where Greenthesis Group is headquartered
LocationHeadquarters
- HQ city
- Segrate
- HQ country
- Italy
- HQ region
- Europe
Offices8 records
Markets served
Greenthesis Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Operations, Infrastructure, Personnel, Technology or R&D, Supply Chain, Marketing or Sales
Revenue model
- Waste Treatment, Recovery, and Disposal Services: Core revenue stream from treatment, recovery, multimaterial valorization according to circular economy principles, and disposal of industrial, urban, special, and assimilated waste.
- Environmental Remediation and Rehabilitation: Environmental remediation and rehabilitation services including SIN (National Interest Sites) projects such as Bagnoli-Coroglio and Brescia-Caffaro.
- Waste-to-Energy and Electricity Production: Revenue from waste-to-energy operations generating electricity and thermal energy, including teleriscaldamento district heating.
- Advanced Biofuels and Biogas: Production and sale of advanced biofuels and biomethane from waste-derived biogas through upgrading and liquefaction facilities.
- Environmental Engineering: Engineering, design, and construction services for fixed and mobile environmental treatment facilities.
Go-to-market motion2 records
Distribution channels4 records
Marketing channels8 records
Greenthesis Group product offering
Product offeringCore offering
Greenthesis Group is an integrated environmental services operator providing treatment, recovery, and disposal of industrial, urban, and special waste; environmental remediation of contaminated sites (including SIN National Interest Sites); waste-to-energy electricity and district heating; and biogas/biomethane production. The group operates through a network of owned treatment plants across Italy, with proprietary HTC technology for sludge management via subsidiary CarboREM.
Product overview
Greenthesis Group is an integrated environmental services company operating as a pure-player in waste management and circular economy. The Group offers a comprehensive portfolio including waste treatment, recovery, and disposal services; environmental remediation of contaminated sites; waste-to-energy through the Rea Dalmine plant; and renewable energy production from biogas and biomethane. Key subsidiaries and brands include GTH Agromet for agro-food waste recovery, Carborem for HTC technology, and specialized engineering services. The portfolio is structured around integrated solutions following circular economy principles, with innovative projects like R.U.L.E. for textile recovery and DEREMCo for e-waste metal recovery.
Differentiator
Problem solved
Functional benefit
Products and services
- Waste Treatment, Recovery and Disposal Services Integrated treatment, recovery, multimaterial valorization, and disposal of industrial, urban, special, and assimilated waste for industrial companies, municipalities, and government bodies across Italy.
- Environmental Remediation (Bonifiche) Services Cleanup, remediation, and rehabilitation of contaminated industrial sites and SIN (National Interest Sites), delivered through RTI joint ventures with partners like A.C.R. (Hera Group) and Nico S.r.l. for major public-sector projects.
- Waste-to-Energy Operations (REA Dalmine) Generation of electricity and thermal energy from waste through controlled combustion at the REA Dalmine facility, supplying district heating to 11,000+ homes via partnership with A2A Calore e Servizi.
- Biogas and Biomethane Production Production of biogas from organic waste and agricultural substrates, upgraded to biomethane through liquefaction processes, sold as advanced biofuel for sustainable mobility and renewable energy supply.
- HTC (Hydrothermal Carbonization) Sludge Treatment (CarboREM) Proprietary HTC technology developed by subsidiary CarboREM for sustainable industrial and civil sludge management, reducing dehydrated sludge volume by 50% and increasing biogas yield through integration with anaerobic digestion.
- Mobile Treatment Plants Flexible mobile units deployed at various sites for treating contaminated and inert soils, enabling on-site remediation without transporting materials to fixed facilities.
- GTH Agromet Agri-Food Waste Recovery Recovery and disposal of agro-food waste including expired products, returns, unsold goods, and damaged items, transforming them into biogas feedstock or recyclable packaging materials for the food industry.
- Specialized Environmental Laboratories Two ISO-certified environmental laboratories operated by the group for waste analysis, testing, and quality assurance in compliance with ISO 9001, 14001, and 45001 standards.
- Engineering, Design and Construction Services Engineering, design, and construction services for fixed and mobile environmental treatment facilities, supported by SOA qualification certificates for construction and remediation activity categories.
- Hazardous Waste Landfill Services (Barricalla) Controlled hazardous waste landfill operations managed through subsidiary Barricalla, providing secure disposal for industrial hazardous waste streams.
- WEEE Treatment and Recovery (Glob Eco) Treatment and recovery of waste from electrical and electronic equipment (WEEE) through subsidiary Glob Eco, addressing e-waste recycling under circular economy principles.
Quantifiable outcome
- Over 95% of treated waste recovered - materials separated for recycling and organic matrix for biogas/biomethane production
- +3 more outcomes
Companies that use Greenthesis Group
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Greenthesis Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature10 records
Greenthesis Group partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered major and core.
- GKSD Holding S.r.l. (Gruppo San Donato)majorJoint venture finalized in December 2023 with GKSD Srl for offering services in the environmental sector and sanitization/hospital waste treatment.
- Andion Italy S.p.A.majorPartnership for joint development of projects in the field of energy production and biomethane generation, leveraging respective expertise in waste management and anaerobic digestion.
- Invitalia S.p.A.coreGovernment agency contracted by RTI led by Greenthesis for Bagnoli-Coroglio SIN remediation project worth significant public funding.
- Circular Economy Lab (Cariplo Factory, Intesa Sanpaolo Innovation Center)majorTRACE x Greenthesis innovation program for startup scouting in circular economy, selecting visionary projects on integrated waste management themes including upcycling and zero waste solutions.
- SOL S.p.A.majorPartnership for liquefied biomethane production at Borgo Montello facility, where Greenthesis technology converts landfill biogas into liquefied biomethane for sustainable mobility.
- A2A Calore e ServizicorePartnership for district heating (teleriscaldamento) connecting REA Dalmine waste-to-energy plant to homes in Dalmine and Bergamo areas with 5km pipeline.
- CarboREM S.r.l.coreGreenthesis increased stake in CarboREM to 60% in August 2022. CarboREM develops and commercializes HTC (Hydrothermal Carbonization) technology for sustainable sludge management.
- A.C.R. S.p.A. (Gruppo Hera)coreMember of RTI (Temporary Business Grouping) with Greenthesis as lead company for the Bagnoli-Coroglio remediation project. Also partner in TREMONTI joint venture for remediation sites.
- Nico S.r.l.coreMember of RTI with Greenthesis for Brescia-Caffaro SIN site remediation project.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Greenthesis Group competitors and assessment
Company assessmentBroad incumbents
- Stericycle: US-based provider of regulated waste management, secure information destruction, and compliance services. Comparable in hazardous waste handling and medical waste, though primarily North American with limited Italian presence.
- FCC Environment: Spanish/Austrian environmental services group (part of FCC Servicios) active in waste collection, treatment, and disposal across Europe. Comparable in municipal and industrial waste management, though with different European geographic footprint.
- Remondis: German family-owned waste and recycling company with operations across Europe. Comparable in industrial waste collection, recycling, and water services, though primarily German-rooted with different geographic focus.
- Renewi: UK/Dutch-listed waste-to-product company operating across Belgium, Netherlands, and UK. Comparable in industrial waste collection, recycling, and organics/fertilizer production, though operating in different geographies.
- Veolia Environnement: French global environmental services leader with significant Italian operations in water, waste, and energy. Comparable in hazardous waste treatment, WtE, and environmental remediation, but at much larger scale and broader geographic footprint.
- Suez: French global water and waste management company with operations across Europe. Comparable in hazardous waste, recycling, and circular economy services, but operates as a much larger diversified platform.
Direct peers
- Iren: Italian multi-utility based in Reggio Emilia providing integrated waste management, water, and energy services across northern and central Italy. Direct peer in industrial waste handling, environmental services, and circular economy solutions.
- Hera Group: Italian multi-utility headquartered in Bologna, operating waste management, water, and energy services across Emilia-Romagna and beyond. Direct competitor in Italian waste collection, treatment, and disposal; partner with Greenthesis via RTI on the Bagnoli-Coroglio remediation.
- Acea: Rome-based Italian multi-utility active in water, waste management, and energy. Direct competitor in Italian waste treatment, environmental remediation, and circular economy services.
- A2A: Italian multi-utility operating waste-to-energy (including Brescia), district heating, and environmental services. Direct peer in WtE and CHP, and existing partner via REA Dalmine district heating connection serving 11,000+ homes.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Greenthesis Group social profiles
Digital presenceGreenthesis Group compliance and trust
Trust signalCompliance8 records
Greenthesis Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Greenthesis Group leadership team
Management profileNumber of profiles
Profiles10 records
Greenthesis Group subsidiaries and ownership
Company hierarchySubsidiaries14 records
Greenthesis Group funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Greenthesis Group M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Greenthesis Group
What does Greenthesis Group do?
Greenthesis Group is an integrated environmental services operator providing treatment, recovery, and disposal of industrial, urban, and special waste; environmental remediation of contaminated sites (including SIN National Interest Sites); waste-to-energy electricity and district heating; and biogas/biomethane production. The group operates through a network of owned treatment plants across Italy, with proprietary HTC technology for sludge management via subsidiary CarboREM.
Is Greenthesis Group a public or private company?
Greenthesis Group is a public company. It is classified as private equity controlled and is currently operating.
When was Greenthesis Group founded?
Greenthesis Group was founded in 1998. It employs 501 to 1,000 people.
Where is Greenthesis Group based?
Greenthesis Group is headquartered in Segrate, Italy, in the Europe region.
How does Greenthesis Group make money?
Five revenue lines are on record. Waste Treatment, Recovery, and Disposal Services are the primary driver. The others are environmental Remediation and Rehabilitation, waste-to-Energy and Electricity Production, advanced Biofuels and Biogas and environmental Engineering.
Who are Greenthesis Group's main competitors?
Broad incumbents on record are Stericycle, FCC Environment, Remondis, Renewi, Veolia Environnement and Suez. Direct peers are Iren, Hera Group, Acea and A2A.
Does Greenthesis Group have an API?
No public API is recorded for Greenthesis Group.
What industry is Greenthesis Group in?
Greenthesis Group's product category is Environmental Services. Its primary akta.pro industry code is IMAIAFAF, Organics Collection & Processing (Composting/Anaerobic Digestion), with a secondary code of EUAIAEAG, Organics-to-Energy & CHP from Biogas (On-site Power/Heat). Its NAICS code is 562 and its SIC code is 4953.