These companies in Ille-et-Vilaine predominantly offer business consulting and IT services, alongside accounting and some specialized industrial support. Many are mid-sized firms, with several established in the late 1970s and 1980s. Notable examples include INNOVAL, a cooperative providing advisory and genetics services to livestock farmers; RBI, specializing in information systems design and integration; Geirec, an independent regional cabinet supporting businesses with expertise; and Aqualeha, which offers services to prevent food, safety, and environmental risks.
A significant cluster of these companies, such as RBI, Geirec, CAPEOS, and Groupe Creative, are headquartered in Rennes, indicating its role as a central hub for business and IT services within the department. The presence of firms like INNOVAL and Aqualeha suggests a focus on supporting the agricultural and food industries, which are prominent in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
INNOVALinnoval.com
Cooperative providing personalized advisory, health, reproduction, and genetics services to livestock farmers for improved performance and sustainability. |
732 | |||
| 2 |
RBIrbi-informatique.fr
Specializing in information systems design, implementation, and integration, RBI-Informatique offers services in infrastructure, collaboration, and management solutions for businesses |
468 | |||
| 3 |
Geirecgeirec.com
An independent regional cabinet with a national focus, GEIREC supports businesses with expertise and values, offering daily partnership, confidentiality, competence, and responsiveness |
308 | |||
| 4 | 266 | ||||
| 5 |
Groupe Creativegroupe-creative.fr
Works with clients on IT and digital transformation projects, offering expertise in consulting, creation, development, research, and innovation across various digital domains. |
232 | |||
| 6 |
Aqualehaaqualeha.com
The company offers a range of services to prevent food, safety, and environmental risks for the protection of assets and individuals |
216 | |||
| 7 |
Groupe SECOBsecob.fr
Provides accounting, payroll, and audit services supporting over 3500 companies in creation, development, and business transfer phases. |
192 | |||
| 8 |
Sodifrancesodifrance.fr
Provides technology consulting, digital transformation, data management, application and infrastructure services to enhance organizational competitiveness and collaboration. |
172 | |||
| 9 |
Tourny Meyertournymeyer.fr
Offers business real estate consulting, sales, and leasing services for offices, warehouses, retail, hotels, and urban developments across multiple French cities. |
101 | |||
| 10 | 100 | ||||
| 11 |
TALENZ TOADENNtalenz.fr
Multidisciplinary consulting firm supporting entrepreneurs and business leaders with strategy, finance, compliance, audit, legal, HR, and technology solutions. |
92 | |||
| 12 |
ADENTadentingenierie.com
Designing sustainable and adaptable agri-food factories that are both thoughtful and harmonious in their construction and operation |
92 | |||
| 13 |
APAVE REGION BRETAGNE-MAINEapave.com
Apave provides comprehensive risk management services to companies and communities worldwide, aiming to increase safety, protect the environment, and optimize organizational performance |
89 | |||
| 14 |
BSL - DIMOTRANS Groupdimotrans-group.com
With over 20 years of e-commerce and retail logistics expertise, we offer comprehensive services focused on agility, innovation, and personalized solutions in France |
89 | |||
| 15 |
Happy to meet youhappytomeetyou.fr
Provides human resources and communication expertise to companies, focusing on executive recruitment and HR consulting, including organizational transformation, development, and skill assessments. |
71 | |||
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 |
Fleet Services Groupfleetservicesgroup.com
This company offers Sales & Marketing services, specialized in IT It provides go-to-market strategies, lead generation, inside sales, and consulting for large companies |
71 | |||
| 17 |
L'Optimiste le Groupeloptimiste.fr
Collective of experts providing strategy, accounting, HR, legal, financing, and CSR support to over 1,500 SMEs in France. |
68 | |||
| 18 | 64 | ||||
| 19 |
HPC Envirotec SAShpc.ag
An environmental engineering company specializing in land recycling, consultancy, and infrastructure planning, part of a global alliance offering environmental services worldwide |
54 | |||
| 20 |
Cabinet BOURGOIS - Groupe MERLINcabinet-merlin.fr
A recognized player in environmental consulting and engineering for over 80 years, based in Betton, France, as a subsidiary of Groupe MERLIN |
53 | |||
| 21 | 46 | ||||
| 22 |
Make the Gradehubs.li
A B2B agency supporting business growth through client acquisition, offering strategies in SEO, marketing, and sales to boost online presence and drive revenue |
44 | |||
| 23 |
SpikeeLabsspikeelabs.fr
SpikeeLabs provides information system design, development, integration, and support services with a focus on growth, innovation, and strong human values |
38 | |||
| 24 | 36 | ||||
| 25 |
ORNISECornisec.com
ORNISEC is a leading cybersecurity consultancy firm offering services such as advice, audits, training, compliance, crisis management, putting a focus on practical and hands-on approach |
35 | |||
| 26 |
OGI Groupeogi-groupe.fr
OGI provides successful IT project implementation and management services to companies of all sizes and sectors, offering expertise in software deployment and infrastructure setup |
33 | |||
| 27 |
Synergizsynergiz.com
Provides intuitive, connected, and interactive solutions, specializing in Mixed Reality. Supports businesses with XR projects from start to finish including hardware, software, and custom development. |
32 | |||
| 28 |
Abelium Entreprisesinformatique-logiciel-bretagne.com
A reliable and proactive IT partner providing quality services tailored to clients' needs, with a focus on innovation, technical expertise, and customer support |
28 | |||
| 29 |
Océane Consulting Data Managementdm.oceaneconsulting.com
Océane Consulting Data Management is a digital transformation company specializing in document, data, and digital solutions for clients in Europe and the Middle East |
26 | |||
| 30 |
Valorial, cluster d'innovation agri-agropole-valorial.fr
Cluster supporting sustainable agri-food innovation through personalized programs, tailored consulting, extensive networking, and project financing assistance for 400 members. |
25 | |||
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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 15, 2026.
More company lists in the Ille-et-Vilaine department
- The largest companies in the Ille-et-Vilaine department 1,454
- Companies with in-house R&D in the Ille-et-Vilaine department 152
- Retail chains in the Ille-et-Vilaine department 135
- Multinational companies in the Ille-et-Vilaine department 118
- Manufacturers in the Ille-et-Vilaine department 100
- Professional services firms in the Ille-et-Vilaine department 94
- SaaS companies in the Ille-et-Vilaine department 85
- Family-owned companies in the Ille-et-Vilaine department 81
- Software Development companies in the Ille-et-Vilaine department 80
- Public sector organisations in the Ille-et-Vilaine department 75
- IT Services and IT Consulting companies in the Ille-et-Vilaine department 67
- IT services companies in the Ille-et-Vilaine department 65
- Hardware manufacturers in the Ille-et-Vilaine department 61
- Education providers in the Ille-et-Vilaine department 60
- Distributors and wholesalers in the Ille-et-Vilaine department 58
- Food and Beverage Manufacturing companies in the Ille-et-Vilaine department 46
- Retail companies in the Ille-et-Vilaine department 46
- Critical infrastructure operators in the Ille-et-Vilaine department 45
- Financial services firms in the Ille-et-Vilaine department 45
- Subscription businesses in the Ille-et-Vilaine department 45
- Construction companies in the Ille-et-Vilaine department 43
- Law Practice companies in the Ille-et-Vilaine department 43
- Higher Education companies in the Ille-et-Vilaine department 41
- Legal Services companies in the Ille-et-Vilaine department 41
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