Orege

What Orege does

Orege S.A. is a French wastewater treatment company headquartered in Paris and listed on Euronext Paris (ticker: OREGE, ISIN: FR0010609206) since July 5, 2013, with EREN Industries as its reference shareholder. The company serves industrial and municipal customers across France, the UK, Italy, and the United States, spanning verticals such as dairy, poultry processing, pulp and paper, pharmaceuticals, food manufacturing, petrochemical, aquaculture, and municipal wastewater treatment.

The company's core offering is built on SLG® (Solid-Liquid-Gas), a patented sludge conditioning technology that modifies sludge structure at the floc level to release trapped water and improve solid-liquid separation. This technology is packaged into mobile containerized and trailer-mounted systems (SLG-F100-C, SLG-F100-T, SLG-F-20C, SLG-MD402, SLG-MD503) and integrated with belt presses, screw presses, and thickening equipment. A Green Gas initiative, in R&D with a patent filed, extends SLG to pre-condition organic matter for anaerobic digestion, targeting up to 40% biogas production gains and over 34% CHP electrical output improvement.

Orege generates revenue through an OPEX-based rental and service model that eliminates customer capital outlay, bundled with on-site operational support, process optimization, performance monitoring, and preventive maintenance under multi-year contracts. The company sells directly through a regional sales team covering Europe, the UK, and Italy, supported by case-study-led marketing and dedicated US and international websites. Reported customer outcomes include 15-20% polymer savings and reduced sludge hauling and disposal costs, with a customer base that includes Monza/BrianzAcque, Cadagua/Utebo, Worcester WWTP, Scottish Water, Capestone, and various dairy, pharmaceutical, food, pulp & paper, aquaculture, and petrochemical operators.

Name

Orege

Legal name

Orege

Website

https://orege.com

Company type

Public

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Orege is a French, Euronext Paris-listed wastewater treatment company that provides mobile, OPEX-based sludge thickening, dewatering, and pretreatment solutions built on its patented SLG® technology for industrial and municipal customers across Europe and the US.

Ownership category

akta.pro rank

Product category

Wastewater Treatment Services

NAICS

Sewage Treatment Facilities (22132), Sewage Treatment Facilities (221320), Water, Sewage and Other Systems (2213), Waste Treatment and Disposal (5622)

SIC

Sanitary Services (4950), Refuse Systems (4953)

akta.pro primary industry

Sludge Thickening & Dewatering (Centrifuge, Belt Press, Screw Press) (EUANAHAA)

akta.pro secondary industry

Anaerobic Treatment & Resource Recovery (Biogas/Co-digestion) (EUANADAH)

Keywords

• Wastewater treatment services
• Sludge dewatering solutions
• Mobile thickening systems
• Effluent pretreatment services
• Anaerobic digestion optimization

Headquarters

HQ city

Toussus-le-noble

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Technology or R&D, Personnel, Marketing or Sales, Supply Chain

Revenue model

1. Mobile Equipment Rental Services: Orege provides flexible mobile, rental-based solutions for dewatering, thickening, and pre-treatment equipment. The OPEX-based model eliminates customer capital investment while delivering immediate deployment of advanced thickening and dewatering solutions. Revenue is generated through rental contracts with flexible terms, with payment based on service delivery rather than equipment purchase.
2. On-Site Operational Support Services: Comprehensive operational support including process optimization, training, performance monitoring, and preventive maintenance. These services support compliance, operational stability, and lowered disposal costs for customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Orege delivers mobile, rental-based wastewater treatment solutions built around its patented SLG® (Solid-Liquid-Gas) sludge conditioning technology. Services include sludge thickening, dewatering, and effluent pre-treatment delivered through containerized and trailer-mounted mobile systems (SLG-F and SLG-MD product families), complemented by on-site operational support, process optimization, and the emerging Green Gas anaerobic digestion enhancement solution.

Product overview

Orege provides a portfolio of mobile, rental-based wastewater treatment solutions centered on its proprietary SLG® (Solid–Liquid–Gas) sludge conditioning technology. The core technology modifies sludge structure at the floc level to improve solid-liquid separation. The product portfolio includes SLG-F100-C, SLG-F100-T, SLG-MD402, SLG-MD503, and SLG-F-20C equipment systems for thickening and dewatering, complemented by Mobile Thickening Services and Mobile Dewatering Services with flexible rental terms. Additional offerings include Wastewater Pretreatment and Green Gas (an R&D-stage biogas optimization solution). The company operates through an OPEX-based service model without requiring capital investment from clients, combining its SLG technology with proven separation equipment such as belt presses and screw presses.

Differentiator

Problem solved

Functional benefit

Brands

• SLG® (Solid-Liquid-Gas): Patented sludge conditioning technology designed to improve solid-liquid separation in wastewater treatment processes by modifying sludge structure at the floc level.
• SLG-F®
• Green Gas

Products and services

• SLG® (Solid-Liquid-Gas) Sludge Conditioning Technology Orege's patented sludge conditioning technology that modifies sludge structure at the floc level, releasing trapped water and improving the interaction between solids, coagulants, and flocculants. Enhances separation efficiency across pretreatment, thickening, and dewatering processes.
• SLG-F100-C Containerized sludge thickening system designed for mobile deployment with rapid setup capabilities.
• SLG-F100-T Sludge thickening system mounted on a trailer for mobile transportation and deployment at various sites.
• SLG-MD402 Mobile dewatering system designed for on-site sludge dewatering operations with belt press and ancillary equipment.
• SLG-MD503 Orege dewatering system with advanced solid-liquid separation capabilities for industrial and municipal applications.
• SLG-F-20C Containerized sludge thickening system combining SLG and Flosep technologies for enhanced separation performance.
• Mobile Thickening Services Rental services featuring rotary drum thickeners and all ancillary equipment needed with flexible rental terms. Combines SLG-F technology with proven thickening equipment.
• Mobile Dewatering Services Rental services featuring belt press, screw press and all ancillary equipment with flexible rental terms for temporary or permanent dewatering needs.
• Wastewater Pretreatment On-site pre-treatment solutions that reduce particulate organic pollution (BOD, COD, phosphorus) in effluent before discharge or downstream treatment.
• On-Site Operational Support Operational partnership providing on-site expertise, process optimization, training, and ongoing operational support for wastewater treatment plants.
• Green Gas Solution Patented mobile solution that adapts SLG technology to pre-condition organic matter for anaerobic digestion, boosting biogas production by up to 40% and CHP electrical output by over 34% without chemicals or heat. Currently in R&D phase.

Quantifiable outcome

• 15-20% polymer savings while improving treatment performance
• +3 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Huber Technology: Specialist in sludge thickening, dewatering, and conditioning equipment (screw presses, belt thickeners, conditioning systems) for municipal and industrial WWTPs. Most directly comparable to Orege in product scope and target customers, with similar European-centric footprint.
• KWI International: Supplier of dissolved air flotation (DAF) and sludge thickening equipment for industrial and municipal wastewater, including mobile/temporary solutions. Comparable to Orege in target customers and thickening/pretreatment positioning, though focused on DAF rather than belt/screw press dewatering.
• Centrisys / Centrotec: US-based specialist in centrifuge dewatering and sludge thickening for municipal and industrial applications, including THK thickeners and sludge conditioning chemistry. Closely comparable to Orege's thickening/dewatering service offering for industrial and municipal customers.

Broad incumbents

• Alfa Laval: Global separation equipment and wastewater treatment major offering decanter centrifuges, sludge thickeners, and conditioning chemistry. Closely comparable to Orege's belt press / screw press dewatering and SLG conditioning positioning, but at much larger scale and broader portfolio.
• Suez (now Veolia) / Sidem: Suez's water technologies arm provides sludge treatment, thickening and dewatering solutions alongside broader water/wastewater services. Competes with Orege for municipal WWTP contracts in France and broader Europe, with the Sidem desalination and sludge-handling business particularly comparable.
• Xylem (Evoqua): Following the Evoqua acquisition, Xylem is a major global player in water and wastewater treatment, including mobile dewatering and biosolids management services. Competes with Orege's mobile, no-capex rental model in the US and Europe, but at significantly larger scale.
• Veolia Water Technologies: Major municipal and industrial wastewater treatment solutions provider with extensive sludge thickening and dewatering offerings, including mobile and service-based deployments. Competes with Orege for municipal WWTP sludge management contracts, but operates at much larger scale across the full water value chain.
• Andritz Separation: Global manufacturer of centrifuges, belt presses, screw presses, and sludge conditioning systems used in municipal and industrial wastewater. Directly comparable to Orege's thickening/dewatering product line, particularly the SLG-F and SLG-MD systems, but as a much larger established OEM.

Emerging players

• Hydro International: Provider of advanced wastewater and stormwater treatment solutions, including sludge thickening and separation technologies. Comparable to Orege in industrial/municipal focus and separation-led value proposition, but typically oriented toward headworks rather than sludge dewatering.
• Dryden Aqua: Specialist in wastewater treatment biology and filtration, with mobile biological treatment offerings adjacent to Orege's mobile dewatering/thickening model. Less direct on sludge conditioning, but comparable as an emerging European player offering operational/mobile wastewater solutions to municipal and industrial customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/oregesa
• Xx.com/oregesas
• Facebookfacebook.com/orege.sas

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds1 record

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Orege