# Manufacturers headquartered in the Seine-Maritime department

Tamtam tracks 72 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 Groupe LHOTELLIER. Their median headcount is 164. Half of them were founded in 1967 or later. The most common headquarters are Rouen (3), Le Havre (2) and Saint-Étienne-du-Rouvray (2).

The Seine-Maritime department hosts a range of manufacturing companies, from large established groups to more recent firms. These companies specialize in diverse sectors such as machinery, food processing, and packaging. Key players include Sidel, a major provider of packaging equipment for beverages and food, and FOURE LAGADEC, which focuses on boiler production and industrial maintenance.

Other notable companies include Saipol, an agri-food company processing oilseeds, and Aspen Notre-Dame-de-Bondeville, which manufactures sterile pharmaceutical products. A common thread among these companies is their focus on industrial production and processing, with a significant presence in food and beverage manufacturing, as well as specialized industrial components and services.

🇫🇷 Seine-Maritime · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Sidel](https://www.tamtam.ai/c/sidel) (sidel.com)<br>Provides equipment, services for packaging beverages, food, home and personal care products in various materials, focusing on customer needs and performance. | Machinery Manufacturing | 🇫🇷 Octeville-sur-Mer | 6,370 | 1965 |
| 2 | [FOURE LAGADEC](https://www.tamtam.ai/c/foure-lagadec) (fourelagadec.com)<br>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 | 🇫🇷 Le Havre | 1,003 | 1922 |
| 3 | [Groupe LHOTELLIER](https://www.tamtam.ai/c/groupe-lhotellier) (lhotellier.fr)<br>A century-old independent family group specializing in construction, public works, and environmental services, with a strong focus on local development and sustainability | Construction | 🇫🇷 Blangy-sur-Bresle | 608 | 1919 |
| 4 | [Saipol](https://www.tamtam.ai/c/saipol) (saipol.com)<br>A French agri-food company specializing in processing oilseeds into oils, animal feed, renewable transport fuels, and vegetable glycerin | Food and Beverage Manufacturing | 🇫🇷 Grand-Couronne | 493 |  |
| 5 | [NATUP](https://www.tamtam.ai/c/natup) (natup.coop)<br>This agricultural and agri-food cooperative supports 7000 farmers, focusing on sustainable agriculture, processing, and distributing raw or transformed products across a wide territory. | Farming | 🇫🇷 Bois-Guillaume | 426 |  |
| 6 | [Novacel](https://www.tamtam.ai/c/novacel) (novacel-solutions.com)<br>Provides technical films, tapes, papers, and machines to protect and preserve material surfaces across various industrial market segments. | International Trade and Development | 🇫🇷 Déville-lès-Rouen | 390 |  |
| 7 | [Aspen Notre-Dame-de-Bondeville](https://www.tamtam.ai/c/aspen-notre-dame-de-bondeville) (aspenndb.com)<br>Manufacturing sterile pharmaceutical products, including antithrombotics and injectable anesthetics, from active ingredient to finished product, with global distribution and ethical practices. | Pharmaceutical Manufacturing | 🇫🇷 Notre-Dame-de-Bondeville | 377 |  |
| 8 | [PGS GROUP](https://www.tamtam.ai/c/pgs-group) (pgsgroup.com)<br>Development and supply of customized wooden packaging solutions, including pallets and eco-friendly services, focused on cost-saving and sustainability. | Packaging and Containers Manufacturing | 🇫🇷 Saint-Étienne-du-Rouvray | 354 | 1993 |
| 9 | [Interior's](https://www.tamtam.ai/c/interior-s) (interiors.fr)<br>A French-based company specializing in unique furniture and accessories, handcrafted with traditional methods and exceptional quality wood, reflecting French 'Art de vivre' | Retail | 🇫🇷 Le Havre | 347 | 1977 |
| 10 | [Groupe Nutriset](https://www.tamtam.ai/c/groupe-nutriset) (groupenutriset.fr)<br>Research, production, and distribution of nutritional products to treat and prevent malnutrition among vulnerable populations worldwide. | Food and Beverage Manufacturing | 🇫🇷 Malaunay | 246 | 1986 |
| 11 | [Les Ateliers du Goût](https://www.tamtam.ai/c/les-ateliers-du-gout) (les-ateliers-du-gout.fr)<br>Production of homemade-style French recipes for professional restaurateurs, emphasizing quality, teamwork, and regional manufacturing workshops. | Food and Beverage Manufacturing | 🇫🇷 Dieppe | 212 | 2018 |
| 12 | [Pressalit](https://www.tamtam.ai/c/pressalit) (pressalit.com)<br>A Danish company producing high-quality toilet seats, accessible bathrooms, and height-adjustable kitchens for people with reduced mobility since 1954 | Plastics Manufacturing | 🇫🇷 Ry | 211 | 1954 |
| 13 | [Nexira](https://www.tamtam.ai/c/nexira) (nexira.com)<br>Family-owned company, world leader acacia gum, global leader natural ingredients, botanical extracts, food, nutrition, dietary supplements, clean label. | Food and Beverage Manufacturing | 🇫🇷 Rouen | 200 | 1895 |
| 14 | [Abysse Corp Group](https://www.tamtam.ai/c/abysse-corp-group) (abyssecorp.com)<br>Design, manufacture, and distribute licensed pop culture merchandise including manga, cinema, video games, with global offices and multiple product lines. | Wholesale | 🇫🇷 Grand Couronne | 192 | 2003 |
| 15 | [DYKA France](https://www.tamtam.ai/c/dyka-france) (dyka.fr)<br>Designs, manufactures, and sells PVC, PP, and PE solutions for various sectors, providing quality products, professional advice, and valuable services | Plastics Manufacturing | 🇫🇷 Sainte-Austreberthe | 164 | 1962 |
| 16 | [PAUL MARIUS](https://www.tamtam.ai/c/paul-marius) (paulmarius.fr)<br>The company specializes in creating handmade retro-inspired leather bags and accessories, with a focus on quality craftsmanship and affordable prices | Retail Apparel and Fashion | 🇫🇷 Rouen | 145 | 2011 |
| 17 | [SERAPID Group](https://www.tamtam.ai/c/serapid-group) (serapid.com)<br>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 | 🇫🇷 Martin-Église | 119 | 1972 |
| 18 | [Didactic - Medical Devices](https://www.tamtam.ai/c/didactic-medical-devices) (didactic.care)<br>Manufacturing, sterilizing, distributing, and commercializing Class I and II CE medical devices to support healthcare professionals and patients. | Pharmaceutical Manufacturing | 🇫🇷 Saint-Jean-de-la-Neuville | 118 | 1967 |
| 19 | [AMN](https://www.tamtam.ai/c/amn) (maag.com)<br>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 | 🇫🇷 Port-Jérôme-sur-Seine | 111 | 1979 |
| 20 | [2H ENERGY](https://www.tamtam.ai/c/2h-energy) (2henergy.fr)<br>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 | 🇫🇷 Fécamp | 111 | 1947 |
| 21 | [TUBAO SAS](https://www.tamtam.ai/c/tubao-sas) (tubao.fr)<br>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 | 🇫🇷 Saint-Saëns | 93 | 1950 |
| 22 | [Touflet Boulanger](https://www.tamtam.ai/c/touflet-boulanger) (toufletboulanger.fr)<br>A family-owned bakery since 1929, delivering fresh bread to restaurants with a focus on quality, tradition, and sustainability Serving clients in multiple regions | Food and Beverage Manufacturing | 🇫🇷 Saint-Étienne-du-Rouvray | 79 | 1929 |
| 23 | [TLC](https://www.tamtam.ai/c/tlc-sotteville-les-rouen) (charcuterietlc.fr)<br>Production, marketing, and distribution of high-quality traditional Normandy regional food products including charcuterie, crêpes, and savory pies. | Food and Beverage Manufacturing | 🇫🇷 Sotteville-lès-Rouen | 68 | 1972 |
| 24 | [PEG group](https://www.tamtam.ai/c/peg-group) (peg.fr)<br>Family-owned business specializing in quilting, upholstery for sofas, bolsters, mattresses, microfiber comforters, pillows, and innovative insulating construction materials. | Textile Manufacturing | 🇫🇷 Varneville-Bretteville | 62 | 1850 |
| 25 | [Robocath](https://www.tamtam.ai/c/robocath) (robocath.com)<br>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 | 🇫🇷 Rouen | 59 | 2009 |
| 26 | [Tramico](https://www.tamtam.ai/c/tramico) (tramico.fr)<br>This company has a revenue of 18 Billion € | Chemical Manufacturing | 🇫🇷 Gournay-En-Bray | 57 |  |
| 27 | [PTL groupe SPHERE](https://www.tamtam.ai/c/ptl-groupe-sphere) (sphere.eu)<br>A company specializing in the manufacturing of plastic bags for household and commercial use, focusing on innovation and sustainable materials | Manufacturing | 🇫🇷 Ouville-la-Rivière | 56 | 1925 |
| 28 | [ONDULINE France](https://www.tamtam.ai/c/onduline-france) (fr.onduline.com)<br>Specializes in lightweight roofing, cladding, waterproofing, and exterior home improvement products and solutions for building envelopes. | Wholesale Building Materials | 🇫🇷 Yainville | 54 | 1944 |
| 29 | [GYPASS](https://www.tamtam.ai/c/gypass) (gypass.fr)<br>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 | 🇫🇷 Envermeu | 54 | 1992 |
| 30 | [Groupe SUMPAR](https://www.tamtam.ai/c/groupe-sumpar) (sumpar.com)<br>specializes in supplying complex metal parts and assemblies for aerospace, offering design, machining, quality control, and assembly services | Industrial Machinery Manufacturing | 🇫🇷 Boos | 52 | 1975 |

## 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 12, 2026.

## More company lists in the Seine-Maritime department

- [The largest companies in the Seine-Maritime department](https://www.tamtam.ai/l/largest-companies-seine-maritime) (918)
- [Retail chains in the Seine-Maritime department](https://www.tamtam.ai/l/retail-chains-seine-maritime) (97)
- [Multinational companies in the Seine-Maritime department](https://www.tamtam.ai/l/multinational-companies-seine-maritime) (89)
- [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)
- [Hardware manufacturers in the Seine-Maritime department](https://www.tamtam.ai/l/hardware-companies-seine-maritime) (38)
- [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)
- [Government Administration companies in the Seine-Maritime department](https://www.tamtam.ai/l/government-administration-companies-seine-maritime) (27)
- [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

- [Manufacturers in France](https://www.tamtam.ai/l/manufacturers-france) (6,697)
- [Manufacturers in Île-de-France](https://www.tamtam.ai/l/manufacturers-ile-de-france) (1,515)
- [Manufacturers in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/manufacturers-auvergne-rhone-alpes) (1,216)
- [Manufacturers in Grand Est](https://www.tamtam.ai/l/manufacturers-grand-est) (573)
- [Manufacturers in Nouvelle-Aquitaine](https://www.tamtam.ai/l/manufacturers-nouvelle-aquitaine) (498)
- [Manufacturers in Pays de la Loire](https://www.tamtam.ai/l/manufacturers-pays-de-la-loire) (484)
- [Manufacturers in Occitanie](https://www.tamtam.ai/l/manufacturers-occitanie) (433)
- [Manufacturers in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/manufacturers-provence-alpes-cote-dazur) (394)
- [Manufacturers in Hauts-de-France](https://www.tamtam.ai/l/manufacturers-hauts-de-france) (369)
- [Manufacturers in the Rhône department](https://www.tamtam.ai/l/manufacturers-rhone) (322)
- [Manufacturers in Brittany](https://www.tamtam.ai/l/manufacturers-brittany) (307)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Manufacturers in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/manufacturers-bourgogne-franche-comte) (272)
- [Manufacturers in Normandy](https://www.tamtam.ai/l/manufacturers-normandy) (245)
- [Manufacturers in Centre-Val de Loire](https://www.tamtam.ai/l/manufacturers-centre-val-de-loire) (207)
- [Manufacturers in the Nord department](https://www.tamtam.ai/l/manufacturers-nord) (204)
- [Manufacturers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/manufacturers-bouches-du-rhone) (187)
- [Manufacturers in the Isère department](https://www.tamtam.ai/l/manufacturers-isere) (178)
- [Manufacturers in the Haute-Garonne department](https://www.tamtam.ai/l/manufacturers-haute-garonne) (159)
- [Manufacturers in the Gironde department](https://www.tamtam.ai/l/manufacturers-gironde) (137)
- [Manufacturers in the Essonne department](https://www.tamtam.ai/l/manufacturers-essonne) (127)
- [Manufacturers in the Loire-Atlantique department](https://www.tamtam.ai/l/manufacturers-loire-atlantique) (125)
- [Manufacturers in the Loire department](https://www.tamtam.ai/l/manufacturers-loire) (122)
- [Manufacturers in Paris](https://www.tamtam.ai/l/manufacturers-paris) (546)

## The same list elsewhere

- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,579)
- [Manufacturers in Europe](https://www.tamtam.ai/l/manufacturers-in-europe) (18,156)

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Source: https://www.tamtam.ai/l/manufacturers-seine-maritime