The Loire-Atlantique department hosts numerous accounting firms, predominantly mid-sized companies with a strong regional presence. These firms offer a broad spectrum of services, including accounting, audit, payroll, legal support, and strategic consulting. They cater to a diverse clientele, from local entrepreneurs and SMEs to individuals investing in real estate.
Notable firms include COCERTO, which provides comprehensive accounting and digital tools; Cerfrance Loire-Atlantique, offering extensive consulting services; Auditia, an independent firm in the Grand Ouest region; and Amarris Groupe, which supports SMEs with digital and personalized solutions. Many firms, such as FICAMEX and eolis, emphasize close advisory services and client proximity. A significant number of these companies are headquartered in Nantes and its surrounding communes, indicating a cluster of expertise in the metropolitan area.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
COCERTOcocerto.fr
Provides comprehensive accounting, audit, payroll, legal support, and digital tools to optimize and secure business operations with personalized service. |
200 | |||
| 2 |
Cerfrance Loire-Atlantiqueloire-atlantique.cerfrance.fr
Provide accounting, strategic, fiscal, legal, social, HR, and IT consulting to support local entrepreneurs and business leaders' overall performance. |
177 | |||
| 3 |
Auditiaauditia.fr
A well-established independent accounting firm in the Grand Ouest region with 6 locations, offering expertise in accounting, audit, and business transmission |
148 | |||
| 4 |
Amarris Groupeamarris.fr
Independent accounting firm offering comprehensive support to SMEs, from digital solutions to personalized services, including expertise in accounting, legal, payroll, and innovative financial solutions |
131 | |||
| 5 |
HLP Audithlp-audit.fr
Accounting firm with 35 years experience, serving 2500 clients, focusing on team well-being, professional growth, and client service excellence. |
130 | |||
| 6 |
FICAMEXficamex.fr
A provider of close advisory services including accounting, social, legal expertise, and strategic consulting |
117 | |||
| 7 |
Amarris Immoamarris-immo.fr
With nearly 15 years of experience, Amarris Immo is a leading accounting partner for individuals investing in rental real estate, offering tailored advice and solutions |
110 | |||
| 8 |
eoliscabinet-eolis.com
Eolis is an accounting and auditing firm in Nantes, with 3 partners and 30 staff offering services in various sectors They prioritize proximity, training, and rigor |
103 | |||
| 9 | 102 | ||||
| 10 |
ORECOcabinet-oreco.fr
Established in 1978, ORECO is a team of 4 accountants and 45 staff members offering tailored advice to business owners in various stages of their company's lifecycle |
90 | |||
| 11 |
RSM Ouestrsm.global
RSM offers tailored multidisciplinary services (audit, accounting, consulting) to SMEs, ETIs, and large companies in France and internationally |
72 | |||
| 12 |
Amarris Contactamarris-contact.fr
Expertise-comptable company offering digital solutions and personalized service for independent professionals and small to medium-sized business owners in multiple cities |
70 | |||
| 13 | 67 | ||||
| 14 |
Amarris Direct (ex-ECL Direct)expert-comptable-tpe.fr
Pioneering online accounting expertise in France, providing personalized advice and time-saving software to simplify accounting for over 3,500 entrepreneurs |
66 | |||
| 15 |
BAC AUDIT CONSEILbacauditconseil.fr
Provides expert accounting, auditing, and advisory services focused on strategic decision-making support and business transmission in multiple French cities. |
62 | |||
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| 16 |
One Ace Expertise Comptableone-ace.fr
Accounting firm with over 80 professionals providing personalized advisory and accounting services to artisans, small businesses, and professionals in Loire-Atlantique. |
58 | |||
| 17 |
Cabinet Vilaine et Associés (CVA)cvaexperts.fr
An accounting firm in Pays-de-la-Loire, offering services such as advisory, audit, payroll, and expertise for clients in various industries |
50 | |||
| 18 |
Efi-Sciencesefisciences.fr
Efi-Sciences is a team of 30 experienced professionals dedicated to helping manage businesses efficiently, offering personalized tools and a warm approach to accounting |
42 | |||
| 19 |
Consultim Groupeconsultim.com
Provides comprehensive real estate investment platforms for wealth management professionals, including managed properties, crowdfunding, asset management, accounting, and property brokerage services. |
40 | |||
| 20 |
CAPEXIA Francecapexia.fr
Capexia is an accounting firm offering expertise in financial, legal, and tax audit, accounting services, payroll outsourcing, with a modern management tool for SMEs |
35 | |||
| 21 |
ADVELIA EXPERTISEadvelia.com
ADVELIA is an accounting firm located in Nantes, specializing in expertise and financial services |
32 | |||
| 22 |
LBA Walter Francelba-walterfrance.com
Provides accounting, audit, human resources, and social services with a focus on teamwork, employee well-being, and client success. |
31 | |||
| 23 | 30 | ||||
| 24 |
DMP Atlantiquedmpatlantique.com
specialized accounting firm supporting pharmacies and various businesses with accounting, tax, payroll, legal, and management control services |
28 | |||
| 25 |
Françoise Fradin & Associésozeo.com
Providing accounting, social, and fiscal expertise with personalized advice and technical solutions to improve business profitability and decision-making. |
17 | |||
| 26 | 16 | ||||
| 27 |
Expèréo | Cabinet d'expertise comptablecabinet-expereo.com
Expèréo is an accounting and project advisory firm in Nantes that prioritizes expertise and human connection, providing tailored services to businesses and associations |
14 | |||
| 28 |
KAPSENSkapsens.com
A consulting and accounting firm in Paris and Nantes, providing personalized support to business owners in managing their projects and legal, fiscal, and digital environments |
14 | |||
| 29 |
AGORA EXPERTScabinet-dg.fr
AGORA Experts is an accounting and auditing firm located in Nantes, La Roche-sur-Yon, and Rezé, serving a variety of industries and organizations |
14 | |||
| 30 |
FIGURA AUDIT & CONSEILSfigura-expert.fr
FIGURA is an independent accounting and auditing firm in Nantes and Ancenis, with 20 employees serving over 500 clients including SMEs, entrepreneurs, and freelancers for over 35 years |
12 | |||
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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 Loire-Atlantique department
- The largest companies in the Loire-Atlantique department 2,044
- Companies with in-house R&D in the Loire-Atlantique department 207
- Retail chains in the Loire-Atlantique department 162
- Multinational companies in the Loire-Atlantique department 159
- Professional services firms in the Loire-Atlantique department 158
- Software Development companies in the Loire-Atlantique department 137
- SaaS companies in the Loire-Atlantique department 135
- IT services companies in the Loire-Atlantique department 130
- Manufacturers in the Loire-Atlantique department 125
- IT Services and IT Consulting companies in the Loire-Atlantique department 110
- Consulting firms in the Loire-Atlantique department 94
- Distributors and wholesalers in the Loire-Atlantique department 94
- Hardware manufacturers in the Loire-Atlantique department 86
- Business Consulting and Services companies in the Loire-Atlantique department 83
- Public sector organisations in the Loire-Atlantique department 80
- Family-owned companies in the Loire-Atlantique department 71
- Education providers in the Loire-Atlantique department 68
- Real Estate companies in the Loire-Atlantique department 67
- Financial services firms in the Loire-Atlantique department 65
- Law Practice companies in the Loire-Atlantique department 62
- Retail companies in the Loire-Atlantique department 61
- Subscription businesses in the Loire-Atlantique department 61
- Critical infrastructure operators in the Loire-Atlantique department 58
- Events Services companies in the Loire-Atlantique department 58
The same list elsewhere in France
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