l assainissement autonome

What l assainissement autonome does

L'Assainissement Autonome is a French designer and manufacturer of individual and semi-collective wastewater treatment systems, headquartered and produced at a single factory in Seclin in the Hauts-de-France region. Founded in 1998 as a SARL, the company operates exclusively in the "assainissement non collectif" (ANC) segment, supplying property owners, municipalities, hospitality operators, and industrial sites that are not connected to a municipal sewer network and must comply with SPANC (Service Public d'Assainissement Non Collectif) requirements.

The company's product portfolio is built around two proprietary technology families manufactured in-house via rotomolding of PEHD (high-density polyethylene). First, the FLUIDIFIX® line of micro-stations (1–500 EH capacity) uses a fluidized-bed biological reactor with proprietary plastic-cylinder biofilm support media, aerated by micro-bubbles; the 2023-launched MINIFIX® is an ultra-compact, off-ground / kit-format derivative for properties without usable terrain. Second, the COMPACT'O® and ECOPACT'O® compact filters (1–30 EH) use rock-wool filtration media and operate without electricity on gravity feed, making them suited to intermittent-use secondary residences and floodable terrain. Complementary products — LIFT'O® lifting stations and GREENPACK® rainwater recovery tanks (1,000–20,000 L) — extend the same rotomolding platform into adjacent water-management use cases. All products carry French ministerial approval (agrément) and CE marking; FLUIDIFIX is also approved in Germany.

The business operates a hybrid sales-led go-to-market: direct sales to end customers (homeowners, municipalities, businesses) through the company website, phone, and regional teams offering free quotes within 48 hours, supplemented by a nationwide network of certified installation partners across all French metropolitan regions plus Réunion. Revenue derives from three streams: (1) hardware sales of micro-stations, compact filters, lifting stations, and rainwater tanks (€6,000–€10,000 for a typical 5 EH residential system supply-and-install), (2) turnkey installation services delivered directly or via partner installers, and (3) recurring maintenance contracts at €200–€450 per year per installation covering inspections, sludge checks, and media replacement. The company has accumulated 15,000+ reference installations across France and Europe over 25+ years, with no disclosed external funding and founder/owner-led management.

Name

l assainissement autonome

Legal name

SARL L'ASSAINISSEMENT AUTONOME

Website

https://a-autonome.fr

Company type

Private

Founded year

1998

Operating status

Operating

Short description

L'Assainissement Autonome is a French manufacturer of individual and semi-collective wastewater treatment systems (micro-stations, compact filters, pumping stations) based in Seclin, serving property owners, municipalities, hospitality operators, and industrial sites across France and Europe.

Ownership category

akta.pro rank

Product category

Wastewater Treatment Equipment Manufacturing

SIC

Sanitary Services (4950)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industries

Decentralized/Package Wastewater Systems (Small/Remote) (EUANADAE), Effluent Polishing & Filtration (MBR/UF/RO/GAC) (EUANADAL)

Keywords

• Wastewater treatment systems
• Micro-station manufacturing
• Compact filtration systems
• Autonomous sanitation solutions
• Rainwater recovery tanks

Headquarters

HQ city

Seclin

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Wastewater Treatment Systems Sales: Sale of micro-stations (Fluidifix®, Minifix®), compact filters (COMPACT'O®, ECOPACT'O®), pumping stations (LIFT'O), and rainwater recovery systems (GREENPACK®). Products are sold directly to end customers and through installation partners. Pricing varies by capacity (EH) and configuration.
2. Installation Services: Turnkey installation services provided directly by the company or through certified installation partners. Includes site preparation, equipment installation, and compliance verification.
3. Maintenance Contracts: Customized maintenance contracts for installed systems. Includes annual inspections, sludge level monitoring, media replacement, and equipment servicing. Annual maintenance costs range from €200 to €450 per installation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

L'Assainissement Autonome designs, manufactures, and installs individual and semi-collective wastewater treatment systems (micro-stations using FLUIDIFIX® fluidized bed technology with capacities of 1–500 EH, and compact filters COMPACT'O/ECOPACT'O using rock wool media with capacities of 1–30 EH), complemented by LIFT'O pumping stations and GREENPACK rainwater recovery tanks. All products are produced in-house via rotomolding at the Seclin factory and sold directly or through certified installation partners to property owners, municipalities, and businesses not connected to municipal sewage networks.

Product overview

L'Assainissement Autonome is a French manufacturer of autonomous/individual wastewater treatment systems, operating as a single-product-portfolio company with multiple product lines that share the same manufacturing platform. The core product range consists of two main technology families: (1) micro-stations (biological reactors) — FLUIDIFIX (fluidized-bed reactor, 1–500 EH) and its compact variant MINIFIX (1–6 EH, above-ground) — and (2) compact filters (gravity-operated, no electricity) — COMPACT'O and ECOPACT'O (rock wool media, 1–30 EH). These are complemented by the LIFT'O lifting/pumping station and GREENPACK rainwater recovery tanks. All products are manufactured at the company's Seclin, France factory using rotomolding, with ministry approval and CE marking. The company also offers bespoke maintenance contracts and turnkey installation services.

Differentiator

Problem solved

Functional benefit

Brands

• Fluidifix: Micro-station d'épuration with fluidized bed technology for capacities of 1 to 500 EH
• Fluidifix ST
• Minifix
• COMPACT'O
• ECOPACT'O
• LIFT'O
• GREENPACK

Products and services

• FLUIDIFIX® Micro-station Micro-station (1–500 EH) using a fluidized-bed biological reactor with FLUIDIFIX® media (mini plastic cylinders) aerated by micro-bubbles for bacterial degradation of pollutants. Treats domestic and industrial wastewater through three stages: primary decanter, fluidized biological reactor, and clarifier. Available as individual (FLUIDIFIX ST) and semi-collective models. CE-marked and French/German ministry approved.
• MINIFIX® Micro-station Ultra-compact above-ground micro-station (1–6 EH) for individual residential use where terrain or access is limited. Uses the FLUIDIFIX® fluidized-bed biological reactor process with a decanter, biological reactor, and clarifier. Delivered as a modular kit (4 separate tanks passing through 75cm standard doors), with a footprint under 3.60 m² and intelligent control box with Nominal/Eco/Holiday operating modes.
• COMPACT'O® Compact Filter Compact filter system (1–30 EH) using rock wool filtration media. Electricity-free, gravity-operated, approved by French ministries. Designed for primary and secondary residences, including floodable/wetland zones (reinforced version). Provides ecological, low-maintenance wastewater treatment without electricity dependency.
• ECOPACT'O® Compact Filter Ecological compact filter system (1–30 EH) using rock wool filtration media. Electricity-free, gravity-operated, French ministry approved. Specifically adapted for intermittent use (secondary residences) and wet/floodable terrain, with a reinforced version featuring anchor rings for inundable installations.
• LIFT'O® Pumping/Lifting Station Lifting/pumping station for raising domestic or treated wastewater from a lower to a higher elevation when gravity flow is not possible due to terrain slope. Available in surface-mounted and buried configurations.
• GREENPACK® Rainwater Recovery System Rainwater recovery, retention, and storage tanks available in 1,000–20,000 L capacities for non-potable uses such as irrigation, garden watering, and cleaning, reducing potable water consumption.
• Bac à graisses (Grease Trap) Grease trap / pre-treatment tank installed upstream of a treatment system when the sanitation unit is more than 10 meters from the building or when the network has a low slope, preventing grease from solidifying in pipes.
• Maintenance Contracts Custom maintenance contracts for installed systems, including annual inspections, sludge level checks, compressor cleaning, media filter monitoring, and pumping station maintenance. Annual costs range from €200 to €450 per installation, providing recurring service revenue.
• Turnkey Installation Services Turnkey installation services delivered directly by the company or through certified installation partners, including site preparation, equipment installation, and SPANC compliance verification. Pricing for a 5-room house (5 EH) supply and installation typically ranges from €6,000 to €10,000 depending on terrain constraints.

Quantifiable outcome

• Treatment efficiency exceeding 98% purification rate
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• RWTH Aachen UniversitycoreStrategic or Co-development PartnerResearch partnership for pilot laboratory and industrial testing of wastewater treatment technologies. Collaboration supports development and refinement of advanced treatment processes for the ANC product lines.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• ClearFox: ClearFox is a German manufacturer of containerized and modular biological wastewater treatment plants, serving industrial, municipal, and decentralized applications. It is comparable to L'Assainissement Autonome as a European specialist in compact treatment technology, though it skews more toward industrial/containerized deployments than individual residential ANC.

Direct peers

• Sebico: Sebico is a French manufacturer of autonomous sanitation systems (micro-stations, compact filters, rainwater recovery) headquartered near Paris. It is the most direct domestic competitor to L'Assainissement Autonome, competing in identical SPANC-regulated market segments with overlapping product positioning and distribution through French installer networks.
• WPL: WPL is a UK-based manufacturer of packaged wastewater treatment plants for domestic, commercial, and municipal applications. It is comparable to L'Assainissement Autonome as a specialist in small-to-medium scale packaged biological treatment systems deployed across Europe for off-mains properties.
• Kingspan Environmental (Klargester): Kingspan Environmental, which includes the legacy Klargester brand, is an Ireland/UK-based manufacturer of domestic wastewater treatment systems, septic tanks, and rainwater harvesting products. It competes directly with L'Assainissement Autonome across the UK and Irish markets with similarly certified package plants for off-grid properties.
• Tricel: Tricel is an Irish-headquartered, pan-European manufacturer of wastewater treatment systems (including package treatment plants and septic tanks) with operations across the UK, Ireland, France, and Germany. It directly competes with L'Assainissement Autonome in the decentralized/decentralized European wastewater treatment segment, including CE-marked micro-stations and package plants.
• Otto Graf (Graf): Otto Graf GmbH is a German manufacturer of plastic tank and water management systems, including rainwater harvesting, wastewater treatment, and infiltration products. It is a direct European peer to L'Assainissement Autonome in rotomolded PE tanks for autonomous sanitation and stormwater applications.

Broad incumbents

• Premier Tech Water and Environment: Premier Tech is a Canadian-headquartered global manufacturer with a Water and Environment division covering decentralized wastewater, rainwater management, and stormwaater solutions. It is a broader incumbent peer to L'Assainissement Autonome, operating at greater scale across multiple continents in overlapping autonomous sanitation and stormwater product categories.
• Veolia: Veolia is a global water, waste, and energy services group with significant municipal and industrial wastewater operations in France and across Europe. While primarily a utility/operator rather than an ANC equipment manufacturer, it competes with L'Assainissement Autonome indirectly through bundled services and is a potential strategic acquirer of the ANC niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/assainissement-autonome

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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 l assainissement autonome