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The 30 largest family-owned companies in the Ain department

Tamtam tracks 46 family-owned companies headquartered in the Ain department. This list ranks the 30 largest by number of employees on LinkedIn, led by Chausson Matériaux, Groupe Martin Belaysoud and GROUPE BERNARD. Their median headcount is 109. Half of them were founded in 1966 or later. The most common headquarters are Bourg-en-Bresse (4) and Oyonnax (3).

🇫🇷 Ain30 companiesUpdated Nov 13, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
1
Chausson Matériauxchausson.fr

Family-owned independent distributor specializing in construction materials, emphasizing honesty, reliability, and strong customer relationships with professionals.

Retail 🇫🇷 Saint-Alban 2,720 1921
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

Wholesale 🇫🇷 Bourg-en-Bresse 2,115 1829
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.

Retail Motor Vehicles 🇫🇷 Bourg-en-Bresse 657 1921
4
ISERBAiserba.fr

A national leader in social housing maintenance, offering a wide range of services with 800 employees across 25 agencies in France

Construction 🇫🇷 Beynost 473 1978
5
Ligne Rosetligne-roset.com

Design, manufacture, and distribution of contemporary furniture, lighting, textiles, rugs, and decorative accessories for a complete lifestyle.

Furniture and Home Furnishings Manufacturing 🇫🇷 Briord 395 1860
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

Construction 🇫🇷 Arbent 358 1927
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.

Food and Beverage Manufacturing 🇫🇷 Ceyzeriat 311 1902
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

Chemical Manufacturing 🇫🇷 Saint-Alban 301 1989
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

Motor Vehicle Manufacturing 🇫🇷 Bourg-en-Bresse 225 1921
10
STEEP Plastiquesteep-plastique.com

Injection moulding of engineering thermoplastics for automotive applications, focusing on lightweight, integrated functions for thermal, hybrid, and electric vehicles.

Plastics and Rubber Product Manufacturing 🇫🇷 Saint-Maurice-de-Beynost 198 1969
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

Packaging and Containers Manufacturing 🇫🇷 Oyonnax 160 n/a
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

Chemical Manufacturing 🇫🇷 Oyonnax 141 1962
13
Georges Blancgeorgesblanc.com

Gastronomy group offering Michelin-starred restaurant, brasseries, hotels, bakery, and boutiques focused on quality, tradition, and luxury.

Restaurants 🇫🇷 Vonnas 131 1872
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

Motor Vehicle Manufacturing 🇫🇷 Bellignat 113 1996
15
AIRVANCE Groupairvancegroup.com

A leading supplier of HVAC products in Europe, providing high-quality solutions and raising awareness about indoor air quality

Wholesale Building Materials 🇫🇷 Beynost 109 1994

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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.

Paper and Forest Product Manufacturing 🇫🇷 Outriaz 93 1929
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

Plastics Manufacturing 🇫🇷 Oyonnax 84 1966
18
BCIbci-solutions.fr

Specializes in home renovation focusing on insulation, ventilation, heating, and maintenance to improve comfort and reduce energy costs.

Construction 🇫🇷 Beynost 68 2012
19
Groupe Murgierlinktr.ee

Family-owned distributor of beers, coffee, hot drinks, wines, and spirits serving Rhône-Alpes region with modernized, customer-focused service.

Wholesale 🇫🇷 La Boisse 66 1936
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

Plastics Manufacturing 🇫🇷 Ceyzeriat 60 2021
21
PINARD BEAUTY PACKpinard-beauty-pack.com

Family company specializing in advanced plastic bottle manufacturing technologies for cosmetics and parapharmacy sectors near Oyonnax, France.

Plastics Manufacturing 🇫🇷 Martignat 55 n/a
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

Food and Beverage Manufacturing 🇫🇷 Bourg-en-Bresse 54 1910
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

Environmental Services 🇫🇷 Neyron 52 2000
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

Plastics Manufacturing 🇫🇷 Manziat 50 1953
25
Cinnacinna.fr

Cinna offers a modern collection of furniture, lighting, and decor created by 70 international designers, embodying values of authenticity and innovation

Furniture and Home Furnishings Manufacturing 🇫🇷 Briord 49 1975
26
OCEDISocedis.com

Ocedis supplies professionals worldwide with water service products, materials, and solutions, with a strong presence in Europe, Africa, and Asia

Chemical Manufacturing 🇫🇷 Trévoux 49 2003
27
BCM Métalleriebcm-metallerie.com

Metal transformation services including laser cutting, machining, welding, and assembly for diverse industries with advanced equipment and expertise.

Industrial Machinery Manufacturing 🇫🇷 Saint-Rambert-en-Bugey 36 1991
28
IPM-MONDIAipm-mondia.com

Design and manufacture custom sandwich panels for industrial, transport, and housing sectors with eco-friendly, turnkey, and durable solutions.

Manufacturing 🇫🇷 Pont-de-Vaux 27 n/a
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

Motor Vehicle Manufacturing 🇫🇷 Neyron 26 n/a
30
SOUDAL Francesoudal.com

Business-to-business sales of sealants, adhesives, and polyurethane foams

Chemical Manufacturing 🇫🇷 Blyes 26 1966

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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.

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