# The 30 largest hardware manufacturers in the Seine-Maritime department
Tamtam tracks 38 hardware manufacturers headquartered in the Seine-Maritime department. This list ranks the 30 largest by number of employees on LinkedIn, led by Sidel, FOURE LAGADEC and Pressalit. Their median headcount is 52. Half of them were founded in 1972 or later. The most common headquarters are Le Havre (3).
This selection of hardware manufacturers in Seine-Maritime includes both large groups and mid-sized firms. Companies like Sidel (6,370 employees) provide packaging equipment, while FOURE LAGADEC (1,003 employees) specializes in boiler production and industrial maintenance. SERAPID Group (119 employees) offers rigid chain technology for heavy linear motion, and Robocath (59 employees) develops robotic solutions for cardiovascular diseases. Many of these companies have a long history, with several founded in the mid-20th century.
The data shows a strong presence of industrial machinery manufacturing and plastics manufacturing across the department. Companies such as AMN (111 employees) design and manufacture pelletizing tools for polymers, and PTL groupe SPHERE (56 employees) produces plastic bags. This indicates a diversified manufacturing base, with expertise ranging from heavy industry to specialized medical devices and consumer goods.
馃嚝馃嚪 Seine-Maritime 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sidel](https://www.tamtam.ai/c/sidel) (sidel.com)
Provides equipment, services for packaging beverages, food, home and personal care products in various materials, focusing on customer needs and performance. | Machinery Manufacturing | 馃嚝馃嚪 Octeville-sur-Mer | 6,370 | 1965 |
| 2 | [FOURE LAGADEC](https://www.tamtam.ai/c/foure-lagadec) (fourelagadec.com)
FOURE LAGADEC offers complete service solutions for industries, specializing in boiler production and industrial maintenance with a focus on quality, safety, and the environment | Manufacturing | 馃嚝馃嚪 Le Havre | 1,003 | 1922 |
| 3 | [Pressalit](https://www.tamtam.ai/c/pressalit) (pressalit.com)
A Danish company producing high-quality toilet seats, accessible bathrooms, and height-adjustable kitchens for people with reduced mobility since 1954 | Plastics Manufacturing | 馃嚝馃嚪 Ry | 211 | 1954 |
| 4 | [SERAPID Group](https://www.tamtam.ai/c/serapid-group) (serapid.com)
Leading provider of Rigid Chain technology for heavy linear motion in industries like kinetic architecture, nuclear, medical, aerospace, automotive, and more worldwide | Industrial Machinery Manufacturing | 馃嚝馃嚪 Martin-脡glise | 119 | 1972 |
| 5 | [Didactic - Medical Devices](https://www.tamtam.ai/c/didactic-medical-devices) (didactic.care)
Manufacturing, sterilizing, distributing, and commercializing Class I and II CE medical devices to support healthcare professionals and patients. | Pharmaceutical Manufacturing | 馃嚝馃嚪 Saint-Jean-de-la-Neuville | 118 | 1967 |
| 6 | [AMN](https://www.tamtam.ai/c/amn) (maag.com)
A designer and manufacturer specializing in pelletizing tools for polymers, offering die plates, knives, and holders, with over 40 years of expertise and a global presence | Plastics Manufacturing | 馃嚝馃嚪 Port-J茅r么me-sur-Seine | 111 | 1979 |
| 7 | [2H ENERGY](https://www.tamtam.ai/c/2h-energy) (2henergy.fr)
Specialized in energy systems, providing design, manufacturing, installation, and maintenance services for various sectors including military, nuclear, oil and gas, telecommunications, and healthcare | Industrial Machinery Manufacturing | 馃嚝馃嚪 F茅camp | 111 | 1947 |
| 8 | [TOSHIBA Centre Grand Ouest](https://www.tamtam.ai/c/toshiba-centre-grand-ouest) (toshibatec.fr)
Innovative company offering cutting-edge solutions tailored to businesses of all sizes, focused on understanding and addressing client needs with proven or innovative technologies | Technology, Information and Internet | 馃嚝馃嚪 Sotteville-l猫s-Rouen | 94 | |
| 9 | [TUBAO SAS](https://www.tamtam.ai/c/tubao-sas) (tubao.fr)
Specializing in water processing and management, offering high-quality HDPE pipes for various industries, with a focus on innovation, engineering, and project security | Civil Engineering | 馃嚝馃嚪 Saint-Sa毛ns | 93 | 1950 |
| 10 | [DIRECT](https://www.tamtam.ai/c/direct) (direct.fr)
Independent small and medium-sized business specializing in technical support for clients regarding connectivity, cabling, wires, sensors, and electronic components for various industries. | Business Consulting and Services | 馃嚝馃嚪 Saint-脡tienne-du-Rouvray | 69 | 1965 |
| 11 | [PEG group](https://www.tamtam.ai/c/peg-group) (peg.fr)
Family-owned business specializing in quilting, upholstery for sofas, bolsters, mattresses, microfiber comforters, pillows, and innovative insulating construction materials. | Textile Manufacturing | 馃嚝馃嚪 Varneville-Bretteville | 62 | 1850 |
| 12 | [Robocath](https://www.tamtam.ai/c/robocath) (robocath.com)
A French medtech company specializes in developing and commercializing robotic solutions for treating cardiovascular diseases, focusing on precision and interventional conditions improvement | Medical Equipment Manufacturing | 馃嚝馃嚪 Rouen | 59 | 2009 |
| 13 | [PTL groupe SPHERE](https://www.tamtam.ai/c/ptl-groupe-sphere) (sphere.eu)
A company specializing in the manufacturing of plastic bags for household and commercial use, focusing on innovation and sustainable materials | Manufacturing | 馃嚝馃嚪 Ouville-la-Rivi猫re | 56 | 1925 |
| 14 | [GYPASS](https://www.tamtam.ai/c/gypass) (gypass.fr)
Since 1992, this Normandy-based company designs and manufactures customizable steel and aluminum external openings, specializing in garage doors and offering a complete range of outdoor products | Wholesale Building Materials | 馃嚝馃嚪 Envermeu | 54 | 1992 |
| 15 | [Groupe SUMPAR](https://www.tamtam.ai/c/groupe-sumpar) (sumpar.com)
specializes in supplying complex metal parts and assemblies for aerospace, offering design, machining, quality control, and assembly services | Industrial Machinery Manufacturing | 馃嚝馃嚪 Boos | 52 | 1975 |
| 16 | [SAFTAIR VENTILATION](https://www.tamtam.ai/c/saftair-ventilation) (saftair.fr)
Design and supply of ventilation systems, air treatment units, and certified smoke extraction equipment for professional kitchens and public spaces. | Machinery Manufacturing | 馃嚝馃嚪 Torcy-le-Petit | 48 | 1988 |
| 17 | [MecanoLav - Ridel SAS](https://www.tamtam.ai/c/mecanolav-ridel-sas) (mecanolav.fr)
Provides modular and customizable industrial cleaning solutions for automotive, aeronautics, railway, and general industries with French manufacturing. | Industrial Machinery Manufacturing | 馃嚝馃嚪 Neufch芒tel-en-Bray | 45 | 1926 |
| 18 | [ANFRAY](https://www.tamtam.ai/c/anfray) (anfray.fr)
Specializing in fluid transfer solutions, #ANFRAY offers custom flexible manufacturing and distribution services for industries like food, cosmetics, pharmaceuticals, and more | Industrial Machinery Manufacturing | 馃嚝馃嚪 Dieppe | 44 | 1937 |
| 19 | [ATB groupe - Atelier Technique de Bobinage](https://www.tamtam.ai/c/atb-groupe-atelier-technique-de-bobinage) (atbgroupe.com)
Specializing in rotating machines, providing expert solutions and services in the field | Machinery Manufacturing | 馃嚝馃嚪 Le Grand-Quevilly | 42 | |
| 20 | [Lucibel SA](https://www.tamtam.ai/c/lucibel-sa) (lucibel.com)
Designing, manufacturing, and distributing innovative LED-based lighting solutions in multiple countries, with a focus on quality, design, and customer-centric solutions | Appliances, Electrical, and Electronics Manufacturing | 馃嚝馃嚪 Barentin | 40 | 2008 |
| 21 | [Normalab France](https://www.tamtam.ai/c/normalab-france) (normalab.com)
A leading manufacturer of petroleum testing equipment, specializing in laboratory analyzers and glassware, serving industries worldwide with innovative and compliant solutions | Oil and Gas | 馃嚝馃嚪 Valliquerville | 35 | 1963 |
| 22 | [SNT Duriez](https://www.tamtam.ai/c/snt-duriez) (sntduriez.fr)
Specializes in constructing and repairing electric transformers, providing essential services for maintaining and building electrical transformer equipment. | Machinery Manufacturing | 馃嚝馃嚪 Le Grand-Quevilly | 35 | |
| 23 | [ELSYLOG](https://www.tamtam.ai/c/elsylog) (elsylog.com)
Manufacturer of electronic security and time management solutions including access control, alarm systems, video surveillance, visitor management, and key tracking | Software Development | 馃嚝馃嚪 D茅nestanville | 31 | 2012 |
| 24 | [FOURE LAGADEC Marine](https://www.tamtam.ai/c/foure-lagadec-marine) (fourelagadec.com)
specializes in design, manufacturing, and complex maintenance of naval equipment including stabilizers and anti-drift systems for ships | Shipbuilding | 馃嚝馃嚪 Le Havre | 25 | 1922 |
| 25 | [KAYO](https://www.tamtam.ai/c/kayo) (kayo.fr)
Revolutionizing the event industry by leveraging documentation to generate leads, share content, and measure impact in real time | Software Development | 馃嚝馃嚪 Le Petit-Quevilly | 25 | 2012 |
| 26 | [APN_Outils Coupants](https://www.tamtam.ai/c/apn-outils-coupants) (apngroup-cuttingtools.com)
Specialist in cutting tools based in Normandy, France Designs, manufactures custom cutting geometries, standard tools, and offers machining time reduction solutions and technical advice | Industrial Machinery Manufacturing | 馃嚝馃嚪 Isneauville | 23 | 1988 |
| 27 | [BMI-Axelent](https://www.tamtam.ai/c/bmi-axelent)
Specializing in designing and manufacturing safety solutions for industrial environments to maximize efficiency, protect personnel, optimize space, and ensure compliance with EU standards | Wholesale Machinery | 馃嚝馃嚪 Saint Romain de Colbosc | 17 | 1993 |
| 28 | [NORFIL](https://www.tamtam.ai/c/norfil) (normandie-filtres.fr)
Family-owned company specializing in air filtration for over 30 years Discover their full range of products at http://wwwnormandie-filtresfr/ | Motor Vehicle Manufacturing | 馃嚝馃嚪 F茅camp | 16 | 1986 |
| 29 | [Kalmar France](https://www.tamtam.ai/c/kalmar-france)
Providing sustainable handling equipment and services worldwide, enhancing safety, productivity, and value in the logistics industry. | Machinery Manufacturing | 馃嚝馃嚪 Le Havre | 15 | |
| 30 | [idr茅va](https://www.tamtam.ai/c/idreva) (idreva.com)
An industrial company specializing in durable, easy-to-use safety equipment such as ladders, hatches, guardrails, and composite covers with a focus on innovation and customer satisfaction | Wholesale Building Materials | 馃嚝馃嚪 Arelaune-en-Seine | 15 | 2015 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
## More company lists in the Seine-Maritime department
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- [Multinational companies in the Seine-Maritime department](https://www.tamtam.ai/l/multinational-companies-seine-maritime) (89)
- [Manufacturers in the Seine-Maritime department](https://www.tamtam.ai/l/manufacturers-seine-maritime) (72)
- [Companies with in-house R&D in the Seine-Maritime department](https://www.tamtam.ai/l/r-and-d-companies-seine-maritime) (67)
- [Public sector organisations in the Seine-Maritime department](https://www.tamtam.ai/l/public-sector-organisations-seine-maritime) (65)
- [Distributors and wholesalers in the Seine-Maritime department](https://www.tamtam.ai/l/distributors-and-wholesalers-seine-maritime) (53)
- [Professional services firms in the Seine-Maritime department](https://www.tamtam.ai/l/professional-services-firms-seine-maritime) (51)
- [Critical infrastructure operators in the Seine-Maritime department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-maritime) (46)
- [Family-owned companies in the Seine-Maritime department](https://www.tamtam.ai/l/family-owned-companies-seine-maritime) (44)
- [IT services companies in the Seine-Maritime department](https://www.tamtam.ai/l/it-services-companies-seine-maritime) (40)
- [Education providers in the Seine-Maritime department](https://www.tamtam.ai/l/education-companies-seine-maritime) (36)
- [Healthcare providers in the Seine-Maritime department](https://www.tamtam.ai/l/healthcare-providers-seine-maritime) (34)
- [Logistics companies in the Seine-Maritime department](https://www.tamtam.ai/l/logistics-companies-seine-maritime) (34)
- [Financial services firms in the Seine-Maritime department](https://www.tamtam.ai/l/financial-services-firms-seine-maritime) (32)
- [IT Services and IT Consulting companies in the Seine-Maritime department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-seine-maritime) (30)
- [Real Estate companies in the Seine-Maritime department](https://www.tamtam.ai/l/real-estate-companies-seine-maritime) (30)
- [Higher Education companies in the Seine-Maritime department](https://www.tamtam.ai/l/higher-education-companies-seine-maritime) (28)
- [Software Development companies in the Seine-Maritime department](https://www.tamtam.ai/l/software-development-companies-seine-maritime) (28)
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- [Industrial Machinery Manufacturing companies in the Seine-Maritime department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-seine-maritime) (27)
- [Consulting firms in the Seine-Maritime department](https://www.tamtam.ai/l/consulting-firms-seine-maritime) (26)
- [Hospitals and Health Care companies in the Seine-Maritime department](https://www.tamtam.ai/l/hospitals-and-health-care-companies-seine-maritime) (25)
## The same list elsewhere in France
- [Hardware manufacturers in France](https://www.tamtam.ai/l/hardware-companies-france) (4,256)
- [Hardware manufacturers in 脦le-de-France](https://www.tamtam.ai/l/hardware-companies-ile-de-france) (1,142)
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- [Hardware manufacturers in Nouvelle-Aquitaine](https://www.tamtam.ai/l/hardware-companies-nouvelle-aquitaine) (290)
- [Hardware manufacturers in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/hardware-companies-provence-alpes-cote-dazur) (263)
- [Hardware manufacturers in Pays de la Loire](https://www.tamtam.ai/l/hardware-companies-pays-de-la-loire) (251)
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- [Hardware manufacturers in Hauts-de-France](https://www.tamtam.ai/l/hardware-companies-hauts-de-france) (212)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Hardware manufacturers in Bourgogne-Franche-Comt茅](https://www.tamtam.ai/l/hardware-companies-bourgogne-franche-comte) (163)
- [Hardware manufacturers in Brittany](https://www.tamtam.ai/l/hardware-companies-brittany) (148)
- [Hardware manufacturers in the Is猫re department](https://www.tamtam.ai/l/hardware-companies-isere) (143)
- [Hardware manufacturers in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/hardware-companies-bouches-du-rhone) (142)
- [Hardware manufacturers in the Haute-Garonne department](https://www.tamtam.ai/l/hardware-companies-haute-garonne) (137)
- [Hardware manufacturers in Normandy](https://www.tamtam.ai/l/hardware-companies-normandy) (135)
- [Hardware manufacturers in Centre-Val de Loire](https://www.tamtam.ai/l/hardware-companies-centre-val-de-loire) (128)
- [Hardware manufacturers in the Nord department](https://www.tamtam.ai/l/hardware-companies-nord) (124)
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- [Hardware manufacturers in the Gironde department](https://www.tamtam.ai/l/hardware-companies-gironde) (100)
- [Hardware manufacturers in the Loire-Atlantique department](https://www.tamtam.ai/l/hardware-companies-loire-atlantique) (86)
- [Hardware manufacturers in Paris](https://www.tamtam.ai/l/hardware-companies-paris) (351)
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Source: https://www.tamtam.ai/l/hardware-companies-seine-maritime