WEISS

What WEISS does

WEISS (Weiss France Energie) designs, manufactures, and installs biomass boiler systems ranging from 1 to 17 MW for industrial facilities, commercial and tertiary buildings, agricultural operations, and district heating networks across France. Founded as a French entity in 1990 in Ugine, Savoie, with engineering roots dating to 1922 in Germany, the company offers full project delivery covering technical studies, equipment manufacturing, construction, installation, commissioning, and after-sales service. WEISS is a subsidiary of Groupe Roullier, the family-owned agro-industrial conglomerate headquartered in Saint-Malo, having been acquired in 2012.

The company's core technology centers on biomass combustion systems producing heat, steam, and hot water, supported by proprietary automated wood feeding systems, dual-stage flue gas filtration, and ash and dust removal subsystems. WEISS has installed over 1,000 MW of thermal capacity across approximately 500 operating boilers in France and has cultivated a recognized specialty in aerospace and aviation infrastructure, with reference customers including Airbus, Groupe ADP, and ArianeGroup. Additional partnerships include a collaboration with VERDO ENERGY to commercialize CSR, OMR, and waste wood boiler solutions, expanding the fuel portfolio beyond virgin biomass.

WEISS generates revenue through one-time project-based sales and installation of customized boiler systems, complemented by recurring after-sales service, maintenance contracts, and spare parts supply. Pricing is custom and not publicly disclosed. The go-to-market is direct enterprise B2B field sales within France only, organized by regional sales teams with a dedicated project manager assigned per engagement. Notable customers span ENGIE Solutions, Airbus, Groupe ADP, ArianeGroup, CARENE, COULIDOOR, and multiple sawmills. The company does not currently have disclosed international operations or AI/ML capabilities.

Name

WEISS

Legal name

Weiss France Energie

Website

https://weiss-france.fr

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

WEISS designs, manufactures, and installs biomass boiler systems (1-17 MW) for industrial, commercial, agricultural, and district heating applications across France. A subsidiary of Groupe Roullier, the company serves clients including ENGIE Solutions, Airbus, Groupe ADP, and ArianeGroup.

Ownership category

akta.pro rank

Product category

Industrial Biomass Boilers

NAICS

Power Boiler and Heat Exchanger Manufacturing (332410), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433), Fabricated Plate Work (Boiler Shops) (3443), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Industrial Biomass Boilers & Steam Systems (Process Heat) (EUAAAGAC)

akta.pro secondary industries

Biomass Combustion & Boiler Island Technology (Grates, Fluidized Bed, Burners) (EUAAAGAG), Biomass Plant Operations, Maintenance & Performance Services (O&M) (EUAAAGAI), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Biomass boilers
• Wood energy systems
• District heating
• Industrial steam boilers
• Renewable heat production

Headquarters

HQ city

Ugine

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Biomass Boiler Sales and Installation: Weiss designs, manufactures, and installs biomass boiler systems (1–17 MW) for industrial facilities, commercial and agricultural buildings, and district heating networks. Revenue is generated through the sale and installation of customized boiler systems, including equipment selection, construction, and commissioning.
2. After-Sales Services and Maintenance Contracts: Weiss provides technical assistance contracts, customized maintenance contracts, spare parts supply, inspection, repair, restart, and training services. The Services Division focuses on customer satisfaction through availability, know-how sharing, and mastery of biomass energy techniques.
3. Spare Parts Supply: Weiss supplies spare parts for installed equipment throughout the entire lifespan of the equipment, including upgrades and products designed to extend equipment lifespan.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

WEISS designs, manufactures, installs, and maintains industrial biomass boiler systems (1–17 MW capacity) that produce hot water, superheated water, or steam for industrial facilities, commercial and tertiary buildings, agricultural buildings, and district heating networks across France. The offering is delivered as turnkey projects covering technical studies, equipment selection and manufacturing, construction, installation, and commissioning, with a dedicated project manager per engagement. The product line is complemented by automated wood feeding systems, dual-stage flue gas filtration, ash removal systems, CSR/OMR/waste wood solutions via VERDO ENERGY, and ongoing after-sales technical assistance, customized maintenance contracts, and spare parts supply.

Product overview

WEISS is a manufacturer of industrial biomass boilers offering a comprehensive product portfolio centered on its core biomass boiler systems (1-17 MW capacity range) for heating, district heating networks, and industrial steam applications. The product line includes complementary subsystems: automated Wood Feed Systems, two-stage Smoke/Fume Treatment Systems (pre-filtration and filtration), and Ash Removal Systems. WEISS also commercializes VERDO ENERGY's CSR, OMR, and waste wood boiler solutions in France. Beyond equipment, WEISS provides a full suite of services including technical studies and design, construction and installation, technical assistance and maintenance contracts, and spare parts supply. The company positions itself as a complete solutions provider combining hardware, installation, and ongoing support for industrial biomass energy systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Biomass Boilers (1–17 MW) Industrial biomass boilers for the production of hot water, superheated hot water, and steam, with power outputs ranging from 1 to 17 MW. Designed for heating systems, district heating networks, and industrial processes; sold as turnkey projects with custom engineering, manufacturing, and installation for industrial facilities, commercial/tertiary buildings, and agricultural buildings in France.
• CSR, OMR and Waste Wood Boilers (with VERDO ENERGY) Boiler solutions designed to burn Combustibles Solides de Récupération (CSR), Ordures Ménagères Résiduelles (OMR), and waste wood, enabling customers to use alternative biomass/waste fuels for renewable heat production. Sold under the Weiss brand in France through a partnership with VERDO ENERGY.
• Technical Studies & Design Services (Project Execution Department) End-to-end project execution services including technical studies, equipment selection, manufacturing oversight, construction works and installation of biomass boilers and their equipment, plus research and development of new products; delivered with a dedicated project manager per project. Targeted at enterprise customers in France.
• Technical Assistance Contracts (After-Sales Services Division) Recurring technical assistance contracts providing regular monitoring, optimization, expert assessments, and support for installed biomass boiler systems across two French intervention sectors. Targeted at owners of WEISS biomass installations.
• Customized Maintenance Contracts Customized multi-year maintenance contracts covering inspection, repair, restart, and lifecycle optimization for WEISS biomass boiler installations. Targeted at existing WEISS customers in France.
• Spare Parts Supply Supply of original and upgraded spare parts for WEISS biomass boiler installations throughout the equipment's operational lifespan, including upgrades and products designed to extend equipment lifespan. Available via the company's Ugine office and extranet portal.

Quantifiable outcome

• Total installed capacity of 1,000+ MW across 500 operating biomass boilers in France
• +4 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• VERDO ENERGYcoreTechnology or IntegrationWeiss commercializes in France CSR (Combustibles Solides de Récupération), OMR (Ordures Ménagères Résiduelles), and waste wood boiler solutions in partnership with VERDO ENERGY, a Danish company. This partnership enables Weiss to offer an expanded product portfolio covering alternative biomass fuels beyond conventional wood, positioning the company in the waste-to-energy segment in the French market.

Scale indicators4 records

Recent moves6 records

Expansion highlights3 records

Others

• VERDO ENERGY: VERDO ENERGY is a Danish biomass/waste-to-energy technology partner whose CSR, OMR, and waste wood boiler solutions WEISS commercializes in France. Closely related as a technology partner rather than direct competitor in the French market.

Direct peers

• Heizomat: Heizomat is a German manufacturer of biomass heating systems and wood chip boiler plants for industrial, commercial, and district heating applications, with multi-MW solutions directly comparable to WEISS's product range.
• Compte.R: Compte.R is a French manufacturer of biomass boilers and wood-fired heating systems for industrial and collective markets, competing head-to-head with WEISS in the same French industrial/commercial biomass boiler segment with comparable capacity ranges.
• KWB - Kraft und Wärme aus Biomasse: KWB is an Austrian biomass heating manufacturer producing wood chip and pellet boilers for industrial, commercial, and district heating use cases, with overlapping product range and customer profiles to WEISS.
• Binder Energietechnik: Binder is an Austrian manufacturer of biomass boiler systems and combustion plants for industrial heat and district heating, with a similar project-based business model and capacity range competing in the European biomass boiler market.
• Fröling: Fröling is an Austrian manufacturer of biomass heating systems (wood chips, pellets, logs) ranging from residential to industrial scale, with multi-MW commercial/industrial offerings that compete with WEISS in adjacent European markets.
• Hargassner: Hargassner is an Austrian manufacturer of biomass heating systems (wood chips, pellets, wood logs) for industrial, commercial, and district heating applications, with multi-MW systems that overlap with WEISS's 1-17 MW product range.
• Polytechnik: Polytechnik is an Austrian biomass combustion technology specialist delivering turnkey biomass boiler plants and CHP systems for industrial process heat and district heating, directly comparable to WEISS's biomass boiler rooms and process heat offerings.

Broad incumbents

• Bosch Industriekessel: Bosch Industriekessel is a division of Bosch producing industrial boiler systems including biomass-fired boilers for process heat and heating networks, offering broader portfolio scale and competing with WEISS in industrial/commercial biomass markets.
• Viessmann: Viessmann is a large German heating technology manufacturer offering biomass boilers among its broader portfolio of heating, industrial, and refrigeration systems, with industrial-scale biomass offerings that compete with WEISS at the upper end of capacity.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/weiss-france-s-a-s-
• Xx.com/weissfrance1

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 WEISS