The companies in this list are primarily large, family-owned businesses in the Ain department, spanning various industrial and retail sectors. Chausson Matériaux specializes in construction materials distribution, while Groupe Martin Belaysoud focuses on professional distribution. GROUPE BERNARD is a major distributor of vehicles, and Ligne Roset designs and manufactures contemporary furniture.
Most of these companies were founded in the early to mid-20th century, indicating a long-standing industrial presence in the region. A notable pattern is the concentration of headquarters in Bourg-en-Bresse, with other significant locations including Saint-Alban and Beynost, highlighting key economic hubs within the department.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Chausson Matériauxchausson.fr
Family-owned independent distributor specializing in construction materials, emphasizing honesty, reliability, and strong customer relationships with professionals. |
2,720 | |||
| 2 |
Groupe Martin Belaysoudmartin-belaysoud.com
The company, established since 1829, specializes in professional distribution with a national presence and innovative e-commerce sites They focus on strong values and personalized relationships with clients |
2,115 | |||
| 3 |
GROUPE BERNARDgroupe-bernard.fr
Family-owned group, major distributor of various car, industrial, and utility vehicle brands across multiple French regions, with 127 sales points. |
657 | |||
| 4 | 473 | ||||
| 5 |
Ligne Rosetligne-roset.com
Design, manufacture, and distribution of contemporary furniture, lighting, textiles, rugs, and decorative accessories for a complete lifestyle. |
395 | |||
| 6 |
Grosfillex Groupgrosfillex-expert.com
This company specializes in furnishing and remodeling indoor and outdoor spaces with French designer products for homes, businesses, and public venues worldwide |
358 | |||
| 7 |
BISCUITS BOUVARDbiscuits-bouvard.com
Family business creates balanced, organic cereal products: cookies, cakes, and snacks. They partner with other businesses, offering expertise and a wide product range. |
311 | |||
| 8 |
MAPEI Francemapei.com
A family-owned Italian company specializing in building solutions and decoration, with a strong international presence and a focus on innovation and quality |
301 | |||
| 9 |
Autobernardautobernard.com
Autobernard is a professional automotive distribution brand offering new and used vehicles, aftersales services, and a network of 73 concessions across several regions |
225 | |||
| 10 |
STEEP Plastiquesteep-plastique.com
Injection moulding of engineering thermoplastics for automotive applications, focusing on lightweight, integrated functions for thermal, hybrid, and electric vehicles. |
198 | |||
| 11 |
LGR Packaginglgr-packaging.com
A European manufacturer specializing in litho-printed cardboard packaging, offering solidboard folding cartons, laminated boxes, leaflets, and rigid boxes across multiple sites |
160 | |||
| 12 |
GERGONNE INDUSTRIE - THE ADHESIVE SOLUTIONgergonne.com
An independent French industrial group specializing in manufacturing and converting adhesive tapes and die-cut items for various markets globally |
141 | |||
| 13 |
Georges Blancgeorgesblanc.com
Gastronomy group offering Michelin-starred restaurant, brasseries, hotels, bakery, and boutiques focused on quality, tradition, and luxury. |
131 | |||
| 14 |
Adduxiadduxi.com
Family-owned international company providing industrial solutions, particularly in the automotive industry Specializing in product development, production process optimization, cost efficiency, quality, and innovation |
113 | |||
| 15 |
AIRVANCE Groupairvancegroup.com
A leading supplier of HVAC products in Europe, providing high-quality solutions and raising awareness about indoor air quality |
109 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Monnet-Sève Sougymonnet-seve.com
A French family-owned company specializing in softwood sawing, optimizing and enhancing French wood to support various projects with passionate wood and forest enthusiasts. |
93 | |||
| 17 |
SERIPLASTseriplast.fr
Manufacturer of packaging plastic for cosmetics brands since 1966, specializing in thermoplastic injection and decoration of bottles, ampoules, roll-on, and pillboxes |
84 | |||
| 18 |
BCIbci-solutions.fr
Specializes in home renovation focusing on insulation, ventilation, heating, and maintenance to improve comfort and reduce energy costs. |
68 | |||
| 19 |
Groupe Murgierlinktr.ee
Family-owned distributor of beers, coffee, hot drinks, wines, and spirits serving Rhône-Alpes region with modernized, customer-focused service. |
66 | |||
| 20 |
HYLÉANCEhyleance.com
A French industrial group specializing in plastic injection and extrusion blow molding, serving various markets with a focus on eco-friendly development |
60 | |||
| 21 |
PINARD BEAUTY PACKpinard-beauty-pack.com
Family company specializing in advanced plastic bottle manufacturing technologies for cosmetics and parapharmacy sectors near Oyonnax, France. |
55 | |||
| 22 |
Giraudetgiraudet.fr
A French company specializing in traditional Bresse cuisine, producing quenelles, soups, and sauces using local suppliers and selling through their own boutiques |
54 | |||
| 23 |
PEAGEpeage-assainissement.fr
Family-owned company with 30 employees based in the Lyon region for over 20 years Specializing in general sanitation, maintenance, and emergency plumbing services for buildings, industries, and communities |
52 | |||
| 24 |
Courantcourant.fr
A family-owned company in the plastic industry, manufacturing conduits, sleeves, and grids for various sectors, emphasizing sustainability in production and product lifespan |
50 | |||
| 25 | 49 | ||||
| 26 |
OCEDISocedis.com
Ocedis supplies professionals worldwide with water service products, materials, and solutions, with a strong presence in Europe, Africa, and Asia |
49 | |||
| 27 |
BCM Métalleriebcm-metallerie.com
Metal transformation services including laser cutting, machining, welding, and assembly for diverse industries with advanced equipment and expertise. |
36 | |||
| 28 |
IPM-MONDIAipm-mondia.com
Design and manufacture custom sandwich panels for industrial, transport, and housing sectors with eco-friendly, turnkey, and durable solutions. |
27 | |||
| 29 |
Rhône Peinture Automobilerhonepeintureautomobile.fr
A family-owned company specializing in automotive paint since 1983 in the Auvergne-Rhône-Alpes region, emphasizing customer proximity and simplicity |
26 | |||
| 30 | 26 | ||||
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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 13, 2026.
More company lists in the Ain department
- The largest companies in the Ain department 511
- Manufacturers in the Ain department 98
- Companies with in-house R&D in the Ain department 90
- Multinational companies in the Ain department 73
- Contract manufacturers in the Ain department 64
- Hardware manufacturers in the Ain department 53
- Plastics Manufacturing companies in the Ain department 53
- Chemical companies in the Ain department 51
- Construction companies in the Ain department 42
- Distributors and wholesalers in the Ain department 41
- Retail chains in the Ain department 38
The same list elsewhere in France
- Family-owned companies in France 3,858
- Family-owned companies in Île-de-France 761
- Family-owned companies in Auvergne-Rhône-Alpes 575
- Family-owned companies in Grand Est 367
- Family-owned companies in Provence-Alpes-Côte d'Azur 345
- Family-owned companies in Nouvelle-Aquitaine 322
- Family-owned companies in Hauts-de-France 277
- Family-owned companies in Occitanie 272
- Family-owned companies in Pays de la Loire 255
- Family-owned companies in Brittany 201
- Family-owned companies in Bourgogne-Franche-Comté 158
- Family-owned companies in the Nord department 156
- Family-owned companies in the Rhône department 149
- Family-owned companies in the Bouches-du-Rhône department 142
- Family-owned companies in Normandy 135
- Family-owned companies in Centre-Val de Loire 103
- Family-owned companies in the Gironde department 103
- Family-owned companies in the Hauts-de-Seine department 102
- Family-owned companies in the Bas-Rhin department 94
- Family-owned companies in the Ille-et-Vilaine department 81
- Family-owned companies in the Alpes-Maritimes department 80
- Family-owned companies in the Haute-Garonne department 72
- Family-owned companies in the Loire-Atlantique department 71
- Family-owned companies in Paris 368