# The 50 largest companies in the Mayenne department

Tamtam tracks 200 companies headquartered in the Mayenne department. This list ranks the 50 largest by number of employees on LinkedIn, led by Lactalis Group, Actual group and Lunivers NOZ. Their median headcount is 198. Half of them were founded in 1976 or later. The most common headquarters are Laval (26).

The companies listed in Mayenne are primarily large, established firms, with a notable presence in food and beverage manufacturing, such as Lactalis Group and Lactalis Nestlé Ultra-Frais France. Other significant sectors include human resources with Actual group, retail with Lunivers NOZ and GEMY Automobiles, and logistics with Delanchy Transports. These companies often have a long history, with many founded before the 2000s.

The data shows a strong concentration of headquarters in Laval, indicating it as a key economic hub within the department. Examples include Collège Montmorency in higher education, Crédit Mutuel de Maine-Anjou et Basse-Normandie in banking, and Cerfrance Mayenne-Sarthe in business consulting. The Mayenne also hosts specialized manufacturing firms like Selha Group in electronics and MoldTecs in automotive parts.

🇫🇷 Mayenne · 50 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Lactalis Group](https://www.tamtam.ai/c/lactalis-group) (lactalis.com)<br>produces and distributes a diverse portfolio of dairy products including milk, cheese, and butter across numerous countries, offering healthy and accessible options. | Food and Beverage Manufacturing | 🇫🇷 Laval | 21,783 | 1933 |
| 2 | [Actual group](https://www.tamtam.ai/c/actual-group) (groupeactual.eu)<br>French group specializing in temporary work, recruitment, training, and HR solutions, supporting job seekers and companies across multiple countries. | Human Resources Services | 🇫🇷 Laval | 5,932 | 1991 |
| 3 | [Lunivers NOZ](https://www.tamtam.ai/c/lunivers-noz) (noz.fr)<br>European leader in destocking. Transforms unsold goods into bargains for customers. Contributes to fighting waste with regular growth and store openings. | Retail | 🇫🇷 Saint-Berthevin | 2,957 | 1976 |
| 4 | [Collège Montmorency](https://www.tamtam.ai/c/college-montmorency) (cmontmorency.qc.ca)<br>Dedicated to the success of students, the institution provides quality education, promotes responsible citizenship, and fosters a dynamic learning environment | Higher Education | 🇫🇷 Laval | 985 | 1969 |
| 5 | [Delanchy Transports](https://www.tamtam.ai/c/delanchy-transports) (delanchy.com)<br>The company is a major player in transportation and logistics of fresh products with controlled temperatures, offering quality services internationally | Transportation, Logistics, Supply Chain and Storage | 🇫🇷 La Gravelle | 844 | 1968 |
| 6 | [Crédit Mutuel de Maine-Anjou et Basse-Normandie](https://www.tamtam.ai/c/credit-mutuel-de-maine-anjou-et-basse-normandie) (creditmutuel.fr)<br>Credit Mutuel MABN is a regional bank prioritizing internal growth, providing personalized service to clients through training, mobility, and decision-making empowerment | Banking | 🇫🇷 Laval | 790 |  |
| 7 | [Daniel Moquet Signe Vos Allées](https://www.tamtam.ai/c/daniel-moquet-signe-vos-allees) (franchise-daniel-moquet.fr)<br>network of franchised landscape entrepreneurs specializing in designing and renovating driveways, courtyards, and terraces for homeowners | Construction | 🇫🇷 Moulay | 716 | 1977 |
| 8 | [Lactalis Nestlé Ultra-Frais France](https://www.tamtam.ai/c/lactalis-nestle-ultra-frais-france) (lalaitiere.fr)<br>Manufacturing and marketing fresh dairy products including yogurts and desserts under Nestlé and Lactalis brands in France. | Food and Beverage Manufacturing | 🇫🇷 Laval | 669 | 2006 |
| 9 | [GEMY Automobiles](https://www.tamtam.ai/c/gemy-automobiles) (gemy-automobiles.fr)<br>Distributes new and used vehicles from Stellantis and Renault brands to individuals and businesses, also offers reconditioning, parts logistics, and software for auto professionals. | Retail | 🇫🇷 Laval | 479 | 1945 |
| 10 | [Selha Group](https://www.tamtam.ai/c/selha-group) (selhagroup.com)<br>Specializing in electronics solutions for various industries, offering industrialization, manufacturing, and design services tailored to customer needs with over 50 years of experience | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Renazé | 440 | 1982 |
| 11 | [Cerfrance Mayenne-Sarthe](https://www.tamtam.ai/c/cerfrance-mayenne-sarthe) (cerfrance.fr)<br>A consulting and accounting firm providing comprehensive services to various business sectors, focusing on innovation and future preparation for entrepreneurs | Business Consulting and Services | 🇫🇷 Laval | 406 | 1958 |
| 12 | [Centre hospitalier de Laval](https://www.tamtam.ai/c/centre-hospitalier-de-laval) (chlaval.fr)<br>The company is a healthcare facility in the Pays de la Loire region, serving a population of 340,000 with a team of 2,500 healthcare professionals | Hospitals and Health Care | 🇫🇷 Laval | 403 |  |
| 13 | [MoldTecs](https://www.tamtam.ai/c/moldtecs) (moldtecs.com)<br>Global supplier of high-performance plastic parts for automotive industry, serving leading OEMs with air intake manifolds, air lines, fluid reservoirs Multiple production facilities worldwide | Motor Vehicle Parts Manufacturing | 🇫🇷 Laval | 389 | 2022 |
| 14 | [Walor](https://www.tamtam.ai/c/walor) (walor.com)<br>European leader in the design and production of forged and machined mechanical parts for engines, gearboxes, and steering systems for major automotive clients. | Motor Vehicle Manufacturing | 🇫🇷 Laval | 356 | 1993 |
| 15 | [DIRICKX](https://www.tamtam.ai/c/dirickx) (dirickx.com)<br>A global leader in perimeter protection solutions, offering fences, gates, access control, and security products, with over 90 years of experience | Wholesale Building Materials | 🇫🇷 Congrier | 356 | 1921 |
| 16 | [MPO International](https://www.tamtam.ai/c/mpo-international) (mpo-international.com)<br>An international industrial group based in France that designs, produces, packs, and distributes emotionally valuable objects for Entertainment, Beauty, and Fine foods markets | Printing Services | 🇫🇷 Villaines-la-Juhel | 330 | 1957 |
| 17 | [Ergos](https://www.tamtam.ai/c/ergos-laval) (ergos-insertion.fr)<br>The company operates a network of temporary work agencies focused on social inclusion, fighting workplace discrimination, with a goal of nationwide coverage | Staffing and Recruiting | 🇫🇷 Laval | 276 | 1997 |
| 18 | [Groupe BREGER](https://www.tamtam.ai/c/groupe-breger) (breger.fr)<br>Independent European company specializing in transport organization, groupage, collection, and distribution with economic and sustainable logistics solutions. | Truck Transportation | 🇫🇷 Laval | 268 | 1952 |
| 19 | [Lactel France](https://www.tamtam.ai/c/lactel-france) (lactel.fr)<br>Support agricultural sectors growth, promote environmental preservation, encourage healthy eating habits, and foster employee development within the agricultural industry. | Food and Beverage Manufacturing | 🇫🇷 Laval | 256 | 1967 |
| 20 | [COFIDUR EMS](https://www.tamtam.ai/c/cofidur-ems) (cofidur-ems.com)<br>Electrical and electronic manufacturing company located in Laval, France, specializing in producing electronic components and assemblies for various industries. | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Laval | 246 | 1968 |
| 21 | [LIDER TRIGANO](https://www.tamtam.ai/c/lider-trigano) (lider.fr)<br>Designs and manufactures a wide range of trailers for personal and professional use, including leisure, gardening, agriculture, and construction. | Motor Vehicle Manufacturing | 🇫🇷 Bonchamp-lès-Laval | 244 | 1994 |
| 22 | [ELEKTO x TME](https://www.tamtam.ai/c/elekto-x-tme) (alliance-electronics.com)<br>Specializing in producing prototypes of small to medium series of high-value electronic cards, assemblies, and complex sub-assemblies | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Andouillé | 243 |  |
| 23 | [VIVRE ADOM – Aide à la personne](https://www.tamtam.ai/c/vivre-adom-aide-a-la-personne) (vivre-adom.com)<br>MAINTIEN ADOM provides comprehensive home care services to support elderly and disabled individuals in maintaining their autonomy and independence | Individual and Family Services | 🇫🇷 Laval | 234 | 2010 |
| 24 | [Seenovia](https://www.tamtam.ai/c/seenovia) (seenovia.fr)<br>Offers tailored consulting and services to farmers in Pays de la Loire and Charente-Maritime, aiding project development, livelihood, and future challenges. | Farming | 🇫🇷 Saint-Berthevin | 204 | 2018 |
| 25 | [JANVIER LABS](https://www.tamtam.ai/c/janvier-labs) (janvier-labs.com)<br>Dedicated to supporting research and advancing healthcare for a better future through a culture of excellence | Biotechnology Research | 🇫🇷 Le Genest-Saint-Isle | 198 | 1960 |
| 26 | [Chocolaterie MONBANA](https://www.tamtam.ai/c/chocolaterie-monbana) (monbana.com)<br>French family business specializing in diverse chocolate products including powder, bars, drinks, cooking ingredients, and gift specialties. | Food and Beverage Manufacturing | 🇫🇷 Ernée | 178 |  |
| 27 | [Prolians Beauplet Languille](https://www.tamtam.ai/c/prolians-beauplet-languille) (magasin.prolians.fr)<br>Distributes professional tools, hardware, protective equipment, and building materials for construction, plumbing, and outdoor projects across multiple locations in Western France. | Wholesale | 🇫🇷 Laval | 177 |  |
| 28 | [ComptaCom](https://www.tamtam.ai/c/comptacom) (tyls.com)<br>Providing tailored advisory, accounting, legal, social, training, and wealth management services to entrepreneurs and business leaders for project success. | Accounting | 🇫🇷 Laval | 169 | 1988 |
| 29 | [Groupe SERAP](https://www.tamtam.ai/c/groupe-serap) (groupeserap.com)<br>Specialises in stainless steel boiler-making, heat exchange systems, milk coolers, wine-making, cryogenic and freezing equipment for food, pharmaceutical, cosmetics industries. | Machinery Manufacturing | 🇫🇷 Gorron | 165 | 1963 |
| 30 | [Green Power](https://www.tamtam.ai/c/green-power) (greenpower-technologie.com)<br>Global provider of solar PV, energy management, and e-mobility solutions, accelerating innovative, secure, and sustainable energy and mobility adoption through high-value products and services | Renewable Energy Equipment Manufacturing | 🇫🇷 La Gravelle | 151 | 2009 |
| 31 | [Ville de Laval - France](https://www.tamtam.ai/c/ville-de-laval-france) (laval.fr)<br>Municipal entity promoting cultural heritage, historical preservation, and artistic identity within the urban environment of Laval. | Government Administration | 🇫🇷 Laval | 145 |  |
| 32 | [Hyper U Mayenne](https://www.tamtam.ai/c/hyper-u-mayenne) (magasins-u.com)<br>Historical hypermarket in Mayenne, France, serving the local community for nearly 50 years with a wide range of products | Retail | 🇫🇷 Mayenne | 128 | 1973 |
| 33 | [OUEST ACRO](https://www.tamtam.ai/c/ouest-acro) (ouestacro.fr)<br>This company specializes in rope access work across various sectors like urban, industrial, nuclear sites, and historical monuments, including construction, assembly, and natural risk management. | Construction | 🇫🇷 Louverné | 118 | 1992 |
| 34 | [Centre Hospitalier du Nord Mayenne](https://www.tamtam.ai/c/centre-hospitalier-du-nord-mayenne) (ch-mayenne.fr)<br>A public health facility located in North-Mayenne, providing medical care and services to the community | Government Administration | 🇫🇷 Mayenne | 118 |  |
| 35 | [POLYCLINIQUE DU MAINE](https://www.tamtam.ai/c/polyclinique-du-maine) (polyclinique-maine.fr)<br>A private medical-surgical facility in Mayenne, France, focusing on quality care, technology, and patient satisfaction within a group fostering collaboration and innovation | Hospitals and Health Care | 🇫🇷 Laval | 117 | 1987 |
| 36 | [Adapei53](https://www.tamtam.ai/c/adapei53) (adapei53.fr)<br>A parental association dedicated to promoting social inclusion of individuals with intellectual disabilities and supporting their families | Services for the Elderly and Disabled | 🇫🇷 Laval | 110 | 1960 |
| 37 | [IUT de Laval](https://www.tamtam.ai/c/iut-de-laval) (iut-laval.univ-lemans.fr)<br>Part of Le Mans University, the IUT de Laval offers Bac+3 technological and professional training in biology, computer science, multimedia, and commerce Various diploma programs available Also active on Facebook, Twitter, YouTube, and Instagram | Higher Education | 🇫🇷 Laval | 107 | 1988 |
| 38 | [Mayenne Communauté et Mayenne Ville](https://www.tamtam.ai/c/mayenne-communaute-et-mayenne-ville) (mayenne-communaute.net)<br>Community prioritizing economic growth, cultural activities, sports, and cooperative spirit, offering a pleasant rural lifestyle near major cities and the sea. | Government Administration | 🇫🇷 Mayenne | 107 |  |
| 39 | [AMBROISE BOUVIER TRANSPORTS](https://www.tamtam.ai/c/ambroise-bouvier-transports) (ambroise-bouvier.com)<br>International Trade and Development company based in France, specializing in transportation services for businesses operating globally | Truck Transportation | 🇫🇷 Saint-Pierre-des-Landes | 105 | 1959 |
| 40 | [Algorithme Pharma \| An Altasciences Company](https://www.tamtam.ai/c/algorithme-pharma-an-altasciences-company) (altasciences.com)<br>This organization provides preclinical and clinical research services, including a range of scientific and regulatory expertise for drug development | Pharmaceutical Manufacturing | 🇫🇷 Laval | 104 | 1992 |
| 41 | [PALAMATIC PROCESS France](https://www.tamtam.ai/c/palamatic-process-france) (palamaticprocess.fr)<br>Designing equipment and complete lines for powder handling, offering tailored solutions for various industries including food, chemical, and construction. | Machinery Manufacturing | 🇫🇷 Brécé | 102 | 1992 |
| 42 | [MAYENNE HABITAT](https://www.tamtam.ai/c/mayenne-habitat) (mayenne-habitat.fr)<br>Management and development of social housing including construction, maintenance, urban renewal, and rental services across multiple communes in Mayenne. | Real Estate | 🇫🇷 Laval | 102 | 1948 |
| 43 | [GROUPE PRONUPTIA](https://www.tamtam.ai/c/groupe-pronuptia) (pronuptia.com)<br>A family-owned business with two complementary brands, operating over 100 stores in the marriage industry, offering a wide range of services to brides | International Trade and Development | 🇫🇷 Laval | 99 | 1996 |
| 44 | [ROSSIGNOL](https://www.tamtam.ai/c/rossignol) (rossignol.fr)<br>Designs and manufactures waste collection and hygiene products for urban spaces, emphasizing customization, sustainability, and compliance with regulations. | Retail Office Equipment | 🇫🇷 Montsurs | 98 | 1896 |
| 45 | [Groupe MAINE](https://www.tamtam.ai/c/groupe-maine) (groupe-maine.com)<br>Manufacturing and marketing innovative, high-quality products in extrusion, fencing, and closure sectors with advanced technology and complementary expertise. | Plastics Manufacturing | 🇫🇷 Ambrières-les-Vallées | 90 | 1962 |
| 46 | [SEPAL](https://www.tamtam.ai/c/sepal) (sepal.fr)<br>Family-owned French company specializing in importing and trading canned food products for the food service industry and agri-food sector | Wholesale Food and Beverage | 🇫🇷 Bonchamp-lès-Laval | 90 | 1980 |
| 47 | [Maisons Socoren](https://www.tamtam.ai/c/maisons-socoren) (socoren.fr)<br>Constructs over 500 individual homes annually in Grand-Ouest France, guiding clients from project study, financing, land search, personalized plans, to construction follow-up. | Construction | 🇫🇷 Laval | 86 | 1981 |
| 48 | [CPAM de la Mayenne (Assurance Maladie)](https://www.tamtam.ai/c/cpam-de-la-mayenne-assurance-maladie) (assurance-maladie.ameli.fr)<br>A health insurance company in Mayenne, France, supports 250,000 individuals with healthcare expenses, promoting well-being and providing assistance during difficult times | Government Administration | 🇫🇷 Laval | 86 | 1945 |
| 49 | [SMC-Metal](https://www.tamtam.ai/c/smc-metal) (smc-metal.fr)<br>Specialized in sheet and tube cutting, CNC bending, tube bending, tapping, fine sheet metal work, welding, shot blasting, painting. | Industrial Machinery Manufacturing | 🇫🇷 Montsûrs | 86 |  |
| 50 | [Groupe Rapido](https://www.tamtam.ai/c/groupe-rapido) (corporate-rapido.com)<br>Design and manufacture of innovative recreational vehicles including motorhomes and camper vans, focusing on quality, style, and customer satisfaction. | Motor Vehicle Manufacturing | 🇫🇷 Mayenne | 84 | 1948 |

## 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 Mayenne department

- [Manufacturers in the Mayenne department](https://www.tamtam.ai/l/manufacturers-mayenne) (28)
- [Multinational companies in the Mayenne department](https://www.tamtam.ai/l/multinational-companies-mayenne) (26)

## The same list elsewhere in France

- [The largest companies in France](https://www.tamtam.ai/l/largest-companies-france) (90,813)
- [The largest companies in Île-de-France](https://www.tamtam.ai/l/largest-companies-ile-de-france) (36,143)
- [The largest companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/largest-companies-auvergne-rhone-alpes) (11,033)
- [The largest companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/largest-companies-provence-alpes-cote-dazur) (6,699)
- [The largest companies in Occitanie](https://www.tamtam.ai/l/largest-companies-occitanie) (5,769)
- [The largest companies in Grand Est](https://www.tamtam.ai/l/largest-companies-grand-est) (5,700)
- [The largest companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/largest-companies-nouvelle-aquitaine) (5,460)
- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [The largest companies in the Rhône department](https://www.tamtam.ai/l/largest-companies-rhone) (4,813)
- [The largest companies in Hauts-de-France](https://www.tamtam.ai/l/largest-companies-hauts-de-france) (4,505)
- [The largest companies in Pays de la Loire](https://www.tamtam.ai/l/largest-companies-pays-de-la-loire) (4,269)
- [The largest companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/largest-companies-bouches-du-rhone) (3,318)
- [The largest companies in Brittany](https://www.tamtam.ai/l/largest-companies-brittany) (3,058)
- [The largest companies in the Nord department](https://www.tamtam.ai/l/largest-companies-nord) (2,806)
- [The largest companies in the Gironde department](https://www.tamtam.ai/l/largest-companies-gironde) (2,435)
- [The largest companies in the Haute-Garonne department](https://www.tamtam.ai/l/largest-companies-haute-garonne) (2,406)
- [The largest companies in Normandy](https://www.tamtam.ai/l/largest-companies-normandy) (2,380)
- [The largest companies in the Loire-Atlantique department](https://www.tamtam.ai/l/largest-companies-loire-atlantique) (2,046)
- [The largest companies in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/largest-companies-bourgogne-franche-comte) (1,867)
- [The largest companies in Centre-Val de Loire](https://www.tamtam.ai/l/largest-companies-centre-val-de-loire) (1,701)
- [The largest companies in the Alpes-Maritimes department](https://www.tamtam.ai/l/largest-companies-alpes-maritimes) (1,538)
- [The largest companies in Paris](https://www.tamtam.ai/l/largest-companies-paris) (22,790)
- [The largest companies in Lyon](https://www.tamtam.ai/l/largest-companies-lyon) (2,679)
- [The largest companies in Toulouse](https://www.tamtam.ai/l/largest-companies-toulouse) (1,565)

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Source: https://www.tamtam.ai/l/largest-companies-mayenne