SEIRIS
- Company typePrivate
- Founded1978
- HeadquartersLe Coudray-montceaux, France
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
SEIRIS firmographics
Firmographics- Name
- SEIRIS
- Legal name
- SEIRIS SAS
- Website
- https://seiris-sa.com
- Company type
- Private
- Founded year
- 1978
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Ownership category
- akta.pro rank
SEIRIS industry classification
Industry- Product category
- Industrial Expansion Joints
- NAICS
- Other Textile Product Mills (3149)
- SIC
- Miscellaneous Fabricated Textile Products (2390)
- akta.pro primary industry
- Expansion Joints, Flexible Connectors & Compensators (Rubber/Fabric) (IMANALAF)
- akta.pro secondary industries
- Protective & Safety Textiles (FR/Arc/Heat/Cut/Chemical) (IMAOADAA), Technical Fabric Mills (Performance/Protective/Medical Substrates) (IMAOABAH)
Keywords
Where SEIRIS is headquartered
LocationHeadquarters
- HQ city
- Le Coudray-montceaux
- HQ country
- France
- HQ region
- Europe
Offices3 records
Markets served
SEIRIS business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Expansion Joint Products: Sale of custom-manufactured expansion joints including fabric, metal, and rubber types. Products are designed and fabricated to meet specific customer requirements for industrial piping and ducting systems.
- Installation and Supervision Services: On-site installation and qualified supervision services for proper installation and commissioning of expansion joints. Includes turnkey installation by certified teams.
- Technical Services: On-site inspection, assessment, design assistance, and training services for customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom product quotations |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
SEIRIS product offering
Product offeringCore offering
SEIRIS designs, manufactures, and installs custom-made expansion joints in fabric (textile), metal (stainless steel and special alloys), rubber (elastomer), and PTFE materials for industrial piping and ducting systems. The company also provides turnkey installation, on-site supervision, inspection, design assistance, and training services to compensate for thermal expansion, vibration, and misalignment in energy, petrochemical, cement, steel, marine, and chemical facilities.
Product overview
SEIRIS is a specialized manufacturer offering a portfolio of four expansion joint product lines: Fabric Expansion Joints (textile-based for gaseous applications up to 1200°C), Metal Expansion Joints (stainless steel and alloy bellows for high-pressure applications up to 70 bar), Rubber Expansion Joints (elastomer-based for piping systems up to 200°C), and PTFE Expansion Joints (for corrosive chemical environments). All products are custom-designed and manufactured in France and Tunisia with comprehensive services from design assistance through turnkey installation.
Differentiator
Problem solved
Functional benefit
Products and services
- Fabric Expansion Joints (Compensateurs Textiles) Multi-layered technical fabric and elastomer expansion joints designed for duct and piping systems carrying gaseous fluids. Available in strip, convoluted, belt type, and U-type with folded edges configurations. Temperature ratings from 350°C to 1200°C with refractory coating and pressure tolerance up to 1500 mmH2O. Custom-manufactured for industrial OEMs, EPCs, and end users in power, petrochemical, cement, and steel applications.
- Metal Expansion Joints (Compensateurs Métalliques) High-performance metal bellows expansion joints in circular, rectangular, and articulated configurations with single or multiple convolution bellows. Manufactured from stainless steels (304, 316, 321, 309, 310, 904L) and special alloys (INCONEL, HASTELLOY). Ratings up to 1200°C, 70 bar, and diameters 15 to 7000 mm. Custom-engineered for OEMs, EPCs, and industrial operators in demanding high-pressure and high-temperature service environments.
- Rubber Expansion Joints (Compensateurs Caoutchouc) Custom-made rubber expansion joints for industrial piping systems in single or multi-layer configurations. Available in natural rubber, neoprene, EPDM, silicone, butyl, chlorobutyl, nitrile, SBR, Hypalon, and Viton elastomers with flanges in S275JR, S355J2G3, AISI 304, 316, 316L. Temperature ratings up to 200°C, pressure up to 20 bar, and diameters from 25 to 4000 mm. Designed for industrial users requiring vibration absorption, noise reduction, and chemical resistance.
- PTFE Expansion Joints (Compensateurs PTFE) PTFE-based expansion joints for corrosive chemical applications, providing excellent chemical resistance and flexibility for industrial piping systems handling aggressive media. Custom-fabricated for chemical, petrochemical, and pharmaceutical facilities.
- Installation, Supervision, and Turnkey Services On-site installation, qualified supervision, and turnkey commissioning services delivered by certified teams for expansion joint deployment in industrial facilities. Includes rapid mobilization of inspection and installation teams, spare parts availability, and temporary solutions while permanent repairs are prepared (24-48 hour emergency manufacturing lead time). Serves industrial operators and EPCs installing expansion joints in power, petrochemical, cement, and steel plants.
- Technical Services (Inspection, Design Assistance, Training) On-site inspection and assessment of expansion joints, design assistance during project engineering phases, and training services for customer teams. Supports industrial users and EPCs seeking expert diagnostics, design optimization, and operational reliability improvements.
Quantifiable outcome
- Emergency manufacturing lead time of 24-48 hours
- +4 more outcomes
Companies that use SEIRIS
Customer profileNamed customers14 records
Segments3 records
Ideal customer profiles3 records
SEIRIS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
SEIRIS partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Fosters Energy EgyptminorSEIRIS exhibited alongside Fosters Energy Egypt at EGYPES 2026, one of the region's leading energy events. This partnership strengthens SEIRIS's collaboration and presence in the Middle East and Africa region.
Scale indicators7 records
Recent moves9 records
Expansion highlights5 records
SEIRIS competitors and assessment
Company assessmentDirect peers
- Teddington (Frencken) / Stemmann-Technik: European supplier of expansion joints and vibration dampers for power plants and industrial installations; comparable custom engineering and EPC relationship model to SEIRIS.
- Macoga: Spanish/Italian manufacturer of metal expansion joints and compensators for power, petrochemical, and marine — closely comparable product portfolio and customer base to SEIRIS.
- Belman: Danish designer and manufacturer of steel, rubber, and fabric expansion joints, also serving power generation, district heating, and industrial markets — direct peer in custom-engineered expansion joints.
- HKS Group (formerly HKS Kompensatoren): German specialist in metallic expansion joints and compensators for power generation and process industries — overlaps with SEIRIS's metal expansion joint offering.
- Flexicraft Industries: US-based manufacturer of expansion joints (metal, rubber, fabric), flexible piping, and special applications — competes with SEIRIS in North American industrial markets.
- BOA Expansion Joints (formerly BOA Group): Specialized European manufacturer of metal, fabric, and rubber expansion joints supplying power, petrochemical, and industrial customers globally — directly overlaps SEIRIS across all three core technology categories.
- Kempchen Industrial Sealing & Expansion Joints: German manufacturer specializing in expansion joints for power plants, refineries, and chemical facilities — directly comparable EPC/oem customer overlap with SEIRIS.
- Witzenmann: Germany-based inventor of metallic bellows and a leading supplier of metal expansion joints, flexible piping elements, and automotive applications; competes head-to-head with SEIRIS in metal joint projects.
Broad incumbents
- EagleBurgmann: Global industrial sealing and expansion joint specialist owned by Freudenberg; broader product range and multinational footprint that overlaps with SEIRIS in industrial piping components for EPCs.
Regional players
- Unitech Industries (Expansion Joints): India-based regional manufacturer of metallic and fabric expansion joints serving regional power and process EPC markets — provides comparable engineering capability though primarily outside SEIRIS's primary geographic footprint.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
SEIRIS social profiles
Digital presenceSEIRIS compliance and trust
Trust signalCompliance2 records
SEIRIS financial estimates
Financial estimateRevenue estimate
Valuation estimate
SEIRIS leadership team
Management profileNumber of profiles
Profiles4 records
SEIRIS subsidiaries and ownership
Company hierarchySubsidiaries2 records
SEIRIS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SEIRIS 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 SEIRIS
What does SEIRIS do?
SEIRIS designs, manufactures, and installs custom-made expansion joints in fabric (textile), metal (stainless steel and special alloys), rubber (elastomer), and PTFE materials for industrial piping and ducting systems. The company also provides turnkey installation, on-site supervision, inspection, design assistance, and training services to compensate for thermal expansion, vibration, and misalignment in energy, petrochemical, cement, steel, marine, and chemical facilities.
Is SEIRIS a public or private company?
SEIRIS is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SEIRIS founded?
SEIRIS was founded in 1978. It employs 11 to 50 people.
Where is SEIRIS based?
SEIRIS is headquartered in Le Coudray-montceaux, France, in the Europe region.
How does SEIRIS make money?
Three revenue lines are on record. Expansion Joint Products are the primary driver. The others are installation and Supervision Services and technical Services.
Who are SEIRIS's main competitors?
Direct peers on record are Teddington (Frencken) / Stemmann-Technik, Macoga, Belman, HKS Group (formerly HKS Kompensatoren), Flexicraft Industries, BOA Expansion Joints (formerly BOA Group), Kempchen Industrial Sealing & Expansion Joints and Witzenmann. EagleBurgmann is listed as a broad incumbent. Unitech Industries (Expansion Joints) is listed as a regional player.
Does SEIRIS have an API?
No public API is recorded for SEIRIS.
What industry is SEIRIS in?
SEIRIS's product category is Industrial Expansion Joints. Its primary akta.pro industry code is IMANALAF, Expansion Joints, Flexible Connectors & Compensators (Rubber/Fabric), with a secondary code of IMAOADAA, Protective & Safety Textiles (FR/Arc/Heat/Cut/Chemical). Its NAICS code is 3149 and its SIC code is 2390.