| # | Company | Employees |
|---|---|---|
| 1 |
Groupe Cogedis - Comptabilité et conseil aux entreprisescogedis.com
Providing accounting, management, legal, and human resources consultancy services alongside strategic wealth management and environmental advice for professionals and agricultural business owners. |
783 |
| 2 |
Cerfrance Brocéliandecerfrance-broceliande.fr
Provides specialized accounting services and strategic business advice to company managers and organizations located throughout the Ille-et-Vilaine and Morbihan regions of France. |
572 |
| 3 |
Ouest Conseilsouestconseils.bzh
Providing accounting, audit, and strategic management consulting for Breton businesses, managing payroll and digital transition to ensure client success and local growth. |
450 |
| 4 |
Cerfrance Côtes d'Armorcerfrance22.fr
Leading accounting and consulting firm providing strategic support, financial expertise, and social management services for small businesses, farmers, artisans, and independent professionals. |
313 |
| 5 |
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 |
| 6 | 266 | |
| 7 |
Igam Expertise Comptableigam.fr
Accounting and advisory network serving 6000 clients across various sectors with 35 offices and 300 professionals in western France. |
266 |
| 8 |
Cerfrance Finistèrefinistere.cerfrance.fr
Accounting and consulting firm providing services to businesses and their leaders in Finistère, specializing in advice and expertise in accounting |
216 |
| 9 |
Icoopaicoopa.bzh
ICOOPA is a management and accounting association founded in 1977, serving over 5,000 members in agriculture, crafts, and trade sectors in Brittany, France |
195 |
| 10 |
E&C Expertise Comptableby-ec.fr
Independent accounting and collaborative services firm providing expertise in various areas such as accounting, business advisory, legal counseling, payroll, and administration support |
127 |
| 11 |
In Extenso Bretagneinextenso.fr
A major player in accounting and consulting for small and medium-sized businesses, offering support in all areas of business management |
125 |
| 12 |
Fidouestfidouest.com
An established regional accounting firm specializing in serving a variety of businesses, providing clear and accessible financial analysis, advice, and support Partner of the Marque Bretagne |
108 |
| 13 |
Groupe Goriouxgorioux.com
Comprehensive services in audit, consulting, accounting, business law, social management, and human resources supporting companies through development stages. |
91 |
| 14 |
Fic Expertisefic-expertise.fr
Provides accounting, auditing, tax, social, and legal advisory services through experienced professionals to support nearly 500 clients daily. |
85 |
| 15 |
CABINET CHAMPAS ET ASSOCIESchampas.fr
A multi-disciplinary firm providing expertise in business services such as accounting, taxation, HR, legal matters, financial management, and estate planning with a focus on client support |
82 |
| 16 |
Sogecom - Expertise Comptable & conseilsogecom.net
Provides accounting expertise and auditing services, supporting professionals daily across multiple offices in Brittany, France. |
72 |
| 17 |
CEGEFI CONSEILScegefi-conseils.fr
A company born from a split, CEGEFI CONSEILS SA remains independent, serving 3,000 clients with a team across multiple locations |
71 |
| 18 |
Excelis Conseilexcelis-conseil.fr
Accounting and audit firm with 75 professionals and 6 partners in Rennes and Vannes Serving 1,500+ clients in the Grand Ouest region |
70 |
| 19 |
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 |
| 20 |
COMPTAGESMAcomptagesma.com
Comptagesma guides entrepreneurs from company creation to accounting, tax optimization, and strategic advice, with a focus on proximity, technology, and social responsibility |
67 |
| 21 |
SOCOGEC -Quimper/Pont-L'abbé/Brestsocogec.com
Accounting firm providing comprehensive services including bookkeeping, tax declarations, payroll management, legal advice, and audit support across three locations in Finistère. |
66 |
| 22 |
QUINIOUcab-quiniou.com
QUINIOU is an accounting and audit firm specialized in accounting, auditing, legal services, and HR/payroll management |
60 |
| 23 |
QANTALISqantalis.com
Accounting, auditing, social and legal management services provided by a team of 48 experts in Morbihan for 50 years, supporting businesses in their projects for success |
56 |
| 24 |
Account Revisionaccount-revision.com
Accounting firm providing personalized accounting, auditing, tax, social, and management services to diverse businesses across multiple locations in Brittany. |
56 |
| 25 |
XO CONSEILxoconseil.fr
Specialized in accounting, payroll management, legal advice, and financial assistance for businesses, associations, and public entities ensuring compliance and support. |
53 |
| 26 | 51 | |
| 27 |
SOFICO - Expert Comptable Bretagnesofico-conseil.fr
Accounting and audit firm based in Brittany, providing comprehensive business support and advisory services to company leaders. |
51 |
| 28 |
AD'EX Ouestadexouest.com
With over 40 years of experience, AD'EX Ouest provides consulting services to small and medium-sized businesses in various industries for their key development stages |
49 |
| 29 |
AUDIT CONSULTANTSaudit-consultants.com
Accounting company providing financial auditing, bookkeeping, and consulting services based in Rennes, France, supporting business financial management and compliance. |
44 |
| 30 |
KALIAME | Expertise Comptable - Audit - Conseilkaliame.fr
A dynamic team providing accounting, auditing, and business advisory services in Rennes Offering innovative solutions, training, and support for entrepreneurs |
35 |
| 31 |
SOBRECOMOsobrecomo.fr
An independent accounting firm near Morlaix, Lesneven, and Guipavas providing expertise in accounting, taxation, human resources, financing, and business consulting since 1971 |
31 |
| 32 |
SYMELIOS
Offers accounting, tax, payroll, business law, management consulting, and transmission services for TPE, PME, and Associations, combining proximity and digital solutions. |
29 |
| 33 | 29 | |
| 34 |
ASSET Expertiseasset-expertise.fr
Provides professional accounting, auditing, and financial consulting services to businesses, ensuring compliance and accurate financial management. |
28 |
| 35 |
HELEOSforvismazars.com
Starting January 2024, joined Mazars group, beginning a new phase of collaboration and integration within the larger organization. |
25 |
| 36 |
ADITIS AUDITaditisaudit.fr
Specialized consulting firm offering funding search, fundraising, valuation, financial audit, and accounting expertise Tailored solutions for organizations' strategies and ambitions |
24 |
| 37 |
Efficience Consultants Rennes Saint-Brieucefficienceconsultants.com
Accounting firm providing expert accounting services and business advice to company leaders, focusing on financial management and strategic guidance. |
21 |
| 38 |
Cabinet Relyarelya.fr
Professional services in accounting, statutory auditing, and wealth management, providing financial expertise and asset oversight for clients. |
21 |
| 39 |
EXCO AR MENexco.fr
Accounting firm providing services in accounting, taxation, legal obligations, and payroll management to optimize business performance since 2018. |
18 |
| 40 |
e-care expertise comptable et innovatione-care.fr
Comprehensive accounting, social, legal, and advisory services focused on innovative businesses, supporting financing and fiscal specifics for startups. |
18 |
| 41 | 17 | |
| 42 |
VISTA CONSEILvista-conseil.com
Accounting firm providing audit, consulting, financial expertise, and business management solutions to support companies through creation, transition, and growth phases. |
16 |
| 43 |
LEXIA CONSEILlexia-conseil.fr
Pluridisciplinary consulting firm supporting small and medium-sized businesses in daily management, specializing in accounting, acquisitions, HR, financial direction, and digital tools integration |
16 |
| 44 |
SOFICO BRETAGNEexperts-comptables.fr
Accounting firm with 5 experts and 40 employees in Brest, Morlaix, Guingamp, and Saint Pol de Léon Member of FRANCE DEFI for national support |
15 |
| 45 |
ARCOLIBarcolib.fr
Certified management organization for tradespeople, merchants, self-employed professionals, furnished renters, and farmers |
15 |
| 46 |
Cabinet IGBBigbb.fr
This firm offers tailored solutions in accounting, auditing, and consulting, with experienced professionals guiding clients towards clear business vision and success |
15 |
| 47 |
GROUPE L2Pgroupel2p.fr
The L2P group is an independent organization providing audit, consulting, and business services with over twenty professionals across two locations |
14 |
| 48 |
ADERIA
The company specializes in accounting, advisory services, auditing, and social management |
14 |
| 49 |
COMET EXPERTISEcomet-expertise.com
Accounting, audit, and advisory services provided by a firm with offices in Rennes & Paris, specializing in expert advice for businesses |
14 |
| 50 |
Blécon et Associésblecon.fr
Independent accounting and auditing firm since 1978 Visit their website for more information |
13 |
| 51 |
AUDIT ET CONSEILS EXPERTISE COMPTABLEaudit-conseils.fr
An expertise accounting firm known for its human values and professionalism, offering value-added services through digitalization beyond legal obligations |
12 |
| 52 |
JF MEHEUST E.Cjfmeheust.com
Independent accounting firm providing expert advice, client support, customized tools, and collaboration with specialists for comprehensive business management. |
12 |
| 53 |
COLLET & ASSOCIEScolletetassocies.fr
Founded in 1988, located in Plœmeur since 1990, Collet & Associés is an independent firm providing Accounting, Consulting, and Audit services for businesses |
12 |
| 54 |
LE BOURLOUT Conseil et Expertise Comptablelebourlout-expertise.fr
An accounting and consulting firm based in Ploemeur, France, offering expertise in accounting services and financial advice |
11 |
| 55 |
E2CA CARHAIXe2ca-carhaix.com
E2CA CARHAIX is an accounting firm in Brittany, supporting businesses through all stages of their lifecycle with tailored solutions and network support |
10 |
| 56 |
AKOLÉO l Audit - Conseil - Expertise comptableakoleo.fr
Akoéo is a consulting and accounting firm in Brittany, France focused on custom solutions for local businesses, with a strong commitment to social responsibility |
10 |
| 57 |
LIWEN CONSEILSliwen-conseils.fr
An accounting firm located in Plougoumelen, France, providing financial advice and services to clients in the area |
9 |
| 58 |
BCEA Experts-comptablesbcea.fr
A local firm specializing in accounting and business consulting, offering expertise in three specialized areas: advisory, social, and legal services Encouraging innovative thinking and future connections |
9 |
| 59 |
Azerfi expertise comptableazerfi.com
An accounting firm in Brittany, France, providing expert advice and assistance in accounting, tax, legal, and management areas for businesses of all sizes |
9 |
| 60 |
ARMOR COMPTAarmor-compta.fr
Accounting firm providing tailored solutions and advice to business leaders, dedicated to finding the right solution for each client |
8 |
| 61 |
MKL EXPERTISE
A company supporting business leaders with accounting, auditing, investment advice, and business transition assistance, collaborating with legal, financial, and insurance specialists Operating in multiple regions |
7 |
| 62 |
EMERAUDE EXPERTISEemeraudeexpertise.com
A accounting firm situated in St Malo, Beaussais s/ mer, and Matignon, specializing in financial expertise services |
6 |
| 63 | 5 | |
| 64 |
YANN LEBRETON EXPERTISEyannlebretonexpertise.fr
Accounting services provider located in Plougastel Daoulas, France, offering expertise in financial management and consultancy for businesses and individuals |
5 |
| 65 |
GORIOUX GRALL & ASSOCIESgorioux.com
A French accounting firm located in Bretagne, specializing in providing accounting services to clients in the region of Guipavas |
5 |
| 66 | 4 | |
| 67 |
Edifys Conseilsedifys-conseils.fr
Expert accounting firm specializing in real estate, construction, and heritage, assisting business leaders and real estate professionals with project development and financial management. |
4 |
| 68 |
CIGEST FINANCES
An accounting firm in France specializing in financial services, located in Quimperle |
3 |
| 69 |
adamex Expertise Comptableadamex.fr
An expert accounting firm specializing in advising and managing accounting, legal, and tax matters for small and medium-sized businesses, professionals, and innovative companies |
2 |
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 Oct 24, 2026.
More company lists in Brittany
- The largest companies in Brittany 2,535
- Retail chains in Brittany 321
- Manufacturers in Brittany 209
- Family-owned companies in Brittany 190
- Food and Beverage Manufacturing companies in Brittany 165
- Public sector organisations in Brittany 151
- Software Development companies in Brittany 123
- Distributors and wholesalers in Brittany 119
- SaaS companies in Brittany 119
- Consumer goods companies in Brittany 112
- Critical infrastructure operators in Brittany 110
- Food and beverage companies in Brittany 110
- Retail companies in Brittany 96
- IT services companies in Brittany 96
- Contract manufacturers in Brittany 88
- Healthcare providers in Brittany 84
- IT Services and IT Consulting companies in Brittany 81
- Hardware manufacturers in Brittany 77
- Financial services firms in Brittany 73
- Accounting firms in Brittany 72
- Government Administration companies in Brittany 71
- Consulting firms in Brittany 68
- Construction companies in Brittany 65
- Law Practice companies in Brittany 64
The same list elsewhere in France
- Accounting companies in France 1,635
- Accounting companies in Île-de-France 462
- Accounting companies in Auvergne-Rhône-Alpes 226
- Accounting companies in Provence-Alpes-Côte d'Azur 171
- Accounting companies in Occitanie 152
- Accounting companies in Nouvelle-Aquitaine 122
- Accounting companies in Grand Est 115
- Accounting companies in Hauts-de-France 82
- Accounting companies in Pays de la Loire 76
- Accounting companies in Bourgogne-Franche-Comté 54
- Accounting companies in Normandy 47
- Accounting companies in Centre-Val de Loire 30
- Accounting companies in Paris 292
- Accounting companies in Marseille 55
- Accounting companies in Lyon 52
- Accounting companies in Toulouse 38