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List of accounting firms in Brittany

Tamtam tracks 72 accounting firms headquartered in Brittany. This list ranks all of them by number of employees on LinkedIn, led by Groupe Cogedis - Comptabilité et conseil aux entreprises, Cerfrance Brocéliande and Ouest Conseils. Their median headcount is 29. Half of them were founded in 1991 or later. The most common headquarters are Rennes (13), Vannes (6) and Quimper (4).

🇫🇷 Brittany72 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
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.

Accounting 🇫🇷 Saint-Thonan 783 1970
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.

Accounting 🇫🇷 Rennes 572 n/a
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.

Accounting 🇫🇷 Quimper 450 1988
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.

Accounting 🇫🇷 Plérin 313 1955
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

Accounting 🇫🇷 Rennes 308 1979
6
CAPEOScapeos.fr

Provides comprehensive accounting, legal, and tax services alongside audit, wealth management, and IT solutions for companies across diverse sectors through local offices.

Accounting 🇫🇷 Rennes 266 1979
7
Igam Expertise Comptableigam.fr

Accounting and advisory network serving 6000 clients across various sectors with 35 offices and 300 professionals in western France.

Accounting 🇫🇷 Lamballe 266 1986
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

Accounting 🇫🇷 Quimper 216 n/a
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

Accounting 🇫🇷 Morlaix 195 1977
10
Groupe SECOBsecob.fr

Provides accounting, payroll, and audit services supporting over 3500 companies in creation, development, and business transfer phases.

Business Consulting and Services 🇫🇷 Cesson-Sévigné 192 1963
11
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

Accounting 🇫🇷 Brest 127 1979
12
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

Accounting 🇫🇷 Brest 125 1991
13
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

Accounting 🇫🇷 Auray 108 1976
14
TALENZ TOADENNtalenz.fr

Multidisciplinary consulting firm supporting entrepreneurs and business leaders with strategy, finance, compliance, audit, legal, HR, and technology solutions.

Business Consulting and Services 🇫🇷 Rennes 92 n/a
15
Groupe Goriouxgorioux.com

Comprehensive services in audit, consulting, accounting, business law, social management, and human resources supporting companies through development stages.

Accounting 🇫🇷 Quimper 91 1981
16
Fic Expertisefic-expertise.fr

Provides accounting, auditing, tax, social, and legal advisory services through experienced professionals to support nearly 500 clients daily.

Accounting 🇫🇷 Bruz 85 2003
17
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

Accounting 🇫🇷 Plérin 82 2003
18
Sogecom - Expertise Comptable & conseilsogecom.net

Provides accounting expertise and auditing services, supporting professionals daily across multiple offices in Brittany, France.

Accounting 🇫🇷 La Richardais 72 1971
19
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

Accounting 🇫🇷 Gouesnou 71 1995
20
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

Accounting 🇫🇷 Pacé 70 2003
21
L'Optimiste le Groupeloptimiste.fr

Collective of experts providing strategy, accounting, HR, legal, financing, and CSR support to over 1,500 SMEs in France.

Accounting 🇫🇷 Rennes 68 2016
22
COMPTAGESMAcomptagesma.com

Comptagesma guides entrepreneurs from company creation to accounting, tax optimization, and strategic advice, with a focus on proximity, technology, and social responsibility

Accounting 🇫🇷 Saint-Malo 67 1979
23
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.

Accounting 🇫🇷 Quimper 66 n/a
24
QUINIOUcab-quiniou.com

QUINIOU is an accounting and audit firm specialized in accounting, auditing, legal services, and HR/payroll management

Accounting 🇫🇷 Saint-Malo 60 1947
25
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

Accounting 🇫🇷 Vannes 56 1964
26
Account Revisionaccount-revision.com

Accounting firm providing personalized accounting, auditing, tax, social, and management services to diverse businesses across multiple locations in Brittany.

Accounting 🇫🇷 Montfort-sur-Meu 56 1996
27
XO CONSEILxoconseil.fr

Specialized in accounting, payroll management, legal advice, and financial assistance for businesses, associations, and public entities ensuring compliance and support.

Accounting 🇫🇷 Vannes 53 1969
28
FINTEKfintek.fr

Expert accounting firm and consultancy entirely focused on supporting business leaders, providing modern management tools and accessible teams at all times.

Accounting 🇫🇷 Paris 51 2017
29
SOFICO - Expert Comptable Bretagnesofico-conseil.fr

Accounting and audit firm based in Brittany, providing comprehensive business support and advisory services to company leaders.

Accounting 🇫🇷 Morlaix 51 1985
30
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

Accounting 🇫🇷 Cesson-Sévigné 49 1973
31
LDO CONSEILSldo-conseils.fr

Providing close, personalized support to businesses in Auray, Belle-Ile, Hennebont, and Vannes for effective company management.

Business Consulting and Services 🇫🇷 Auray 46 n/a
32
AUDIT CONSULTANTSaudit-consultants.com

Accounting company providing financial auditing, bookkeeping, and consulting services based in Rennes, France, supporting business financial management and compliance.

Accounting 🇫🇷 Rennes 44 1984
33
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

Accounting 🇫🇷 Rennes 35 1993
34
SOBRECOMOsobrecomo.fr

An independent accounting firm near Morlaix, Lesneven, and Guipavas providing expertise in accounting, taxation, human resources, financing, and business consulting since 1971

Accounting 🇫🇷 Saint-Martin-des-Champs 31 1971
35
SYMELIOS

Offers accounting, tax, payroll, business law, management consulting, and transmission services for TPE, PME, and Associations, combining proximity and digital solutions.

Accounting 🇫🇷 Vannes 29 2025
36
CAFEXcafex.fr

Accounting and auditing firm established in 1986, providing a range of services such as tax consulting, legal support, and audit assistance to clients

Accounting 🇫🇷 Rennes 29 1986
37
ACTUELLES Expertise-Comptableactu-elles.fr

Accounting firm providing tailored services including tax, financial management, business creation support, legal secretariat, and digital tools for entrepreneurs.

Business Consulting and Services 🇫🇷 Pace 28 1995
38
ASSET Expertiseasset-expertise.fr

Provides professional accounting, auditing, and financial consulting services to businesses, ensuring compliance and accurate financial management.

Accounting 🇫🇷 Plérin 28 n/a
39
HELEOSforvismazars.com

Starting January 2024, joined Mazars group, beginning a new phase of collaboration and integration within the larger organization.

Accounting 🇫🇷 Rennes 25 2009
40
Becouze - Rouxel Tanguyactheos.com

Accountants and auditors offering a range of management tools to help professionals with their accounting and financial information, aiming to be a top partner for businesses

Financial Services 🇫🇷 Plérin 25 2009
41
ADITIS AUDITaditisaudit.fr

Specialized consulting firm offering funding search, fundraising, valuation, financial audit, and accounting expertise Tailored solutions for organizations' strategies and ambitions

Accounting 🇫🇷 Rennes 24 1976
42
Cabinet Relyarelya.fr

Professional services in accounting, statutory auditing, and wealth management, providing financial expertise and asset oversight for clients.

Accounting 🇫🇷 Vitré 21 2002
43
EXCO AR MENexco.fr

Accounting firm providing services in accounting, taxation, legal obligations, and payroll management to optimize business performance since 2018.

Accounting 🇫🇷 Vannes 18 2017
44
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.

Accounting 🇫🇷 Chartres-de-Bretagne 18 2014
45
2C2L2c2lconseils.fr

A new approach to accounting and management services

Accounting 🇫🇷 Vannes 17 2008
46
SC CONSEILS Experts Comptablesscconseils.bzh

Established in the 1960s, SC Conseils provides quality accounting expertise services led by experts Aurélie Chevenier and Jean Michel SAVARY with a team of 22 people aiming to become a market leader in Vannes

Business Consulting and Services 🇫🇷 Vannes 17 n/a
47
VISTA CONSEILvista-conseil.com

Accounting firm providing audit, consulting, financial expertise, and business management solutions to support companies through creation, transition, and growth phases.

Accounting 🇫🇷 Caudan 16 1977
48
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

Accounting 🇫🇷 Saint-Grégoire 16 n/a
49
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

Accounting 🇫🇷 Morlaix 15 1985
50
Cabinet IGBBigbb.fr

This firm offers tailored solutions in accounting, auditing, and consulting, with experienced professionals guiding clients towards clear business vision and success

Accounting 🇫🇷 Rennes 15 2009
51
GROUPE L2Pgroupel2p.fr

The L2P group is an independent organization providing audit, consulting, and business services with over twenty professionals across two locations

Accounting 🇫🇷 Saint-Grégoire 14 n/a
52
ADERIA

The company specializes in accounting, advisory services, auditing, and social management

Accounting 🇫🇷 Questembert 14 n/a
53
COMET EXPERTISEcomet-expertise.com

Accounting, audit, and advisory services provided by a firm with offices in Rennes & Paris, specializing in expert advice for businesses

Accounting 🇫🇷 Rennes 14 n/a
54
Blécon et Associésblecon.fr

Independent accounting and auditing firm since 1978 Visit their website for more information

Accounting 🇫🇷 Brest 13 1978
55
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

Accounting 🇫🇷 Saint-Grégoire 12 2003
56
JF MEHEUST E.Cjfmeheust.com

Independent accounting firm providing expert advice, client support, customized tools, and collaboration with specialists for comprehensive business management.

Accounting 🇫🇷 Plérin 12 2012
57
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

Accounting 🇫🇷 Ploemeur 12 1988
58
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

Accounting 🇫🇷 Ploemeur 11 2016
59
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

Accounting 🇫🇷 Carhaix-Plouguer 10 2000
60
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

Accounting 🇫🇷 Langueux 10 2012
61
LIWEN CONSEILSliwen-conseils.fr

An accounting firm located in Plougoumelen, France, providing financial advice and services to clients in the area

Accounting 🇫🇷 Plougoumelen 9 n/a
62
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

Accounting 🇫🇷 Saint-Malo 9 1979
63
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

Accounting 🇫🇷 Lorient 9 1994
64
ARMOR COMPTAarmor-compta.fr

Accounting firm providing tailored solutions and advice to business leaders, dedicated to finding the right solution for each client

Accounting 🇫🇷 Yffiniac 8 2012
65
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

Accounting 🇫🇷 Guipavas 7 2021
66
EMERAUDE EXPERTISEemeraudeexpertise.com

A accounting firm situated in St Malo, Beaussais s/ mer, and Matignon, specializing in financial expertise services

Accounting 🇫🇷 Saint-Malo 6 1987
67
COMPTAGESMA AUDITcomptagesma.fr

Accounting firm located in St Malo, France, offering audit services

Accounting 🇫🇷 St Malo 5 n/a
68
YANN LEBRETON EXPERTISEyannlebretonexpertise.fr

Accounting services provider located in Plougastel Daoulas, France, offering expertise in financial management and consultancy for businesses and individuals

Accounting 🇫🇷 Plougastel-Daoulas 5 2012
69
GORIOUX GRALL & ASSOCIESgorioux.com

A French accounting firm located in Bretagne, specializing in providing accounting services to clients in the region of Guipavas

Accounting 🇫🇷 Guipavas 5 n/a
70
ATHEISatheis.fr

An accounting firm located in Rennes, France, specializing in financial services and assistance for businesses and individuals

Accounting 🇫🇷 Rennes 4 n/a
71
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.

Accounting 🇫🇷 Auray 4 2022
72
CIGEST FINANCES

An accounting firm in France specializing in financial services, located in Quimperle

Accounting 🇫🇷 Quimperlé 3 n/a

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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 Oct 24, 2026.

More company lists in Brittany

The same list elsewhere in France