# Accounting firms headquartered in the Hauts-de-Seine department
Tamtam tracks 67 accounting firms headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Forvis Mazars Group, PwC France and Grant-Thornton France. Their median headcount is 43. Half of them were founded in 2003 or later. The most common headquarters are Levallois-Perret (7), Neuilly-sur-Seine (7) and Boulogne-Billancourt (4).
The Hauts-de-Seine department hosts a concentration of accounting and financial services firms. These companies range from large international partnerships like Forvis Mazars Group, which delivers audit, tax, and advisory services globally, and PwC France, offering consulting, audit, legal, and tax expertise, to mid-sized firms such as Grant-Thornton France, providing audit and financial advisory, and In Extenso Ile-de-France, which focuses on accounting and consulting for small and medium-sized businesses. Many also offer legal and social assistance. Most of these firms are headquartered in Neuilly-sur-Seine or Levallois-Perret. This indicates a geographical clustering of major professional services providers within the department. The services offered span comprehensive accounting, audit, tax, and various forms of consulting, including operational, financial, and sustainable transformation.
馃嚝馃嚪 Hauts-de-Seine 路 30 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Forvis Mazars Group](https://www.tamtam.ai/c/forvis-mazars-group) (forvismazars.com)
International partnership delivering audit, tax, and advisory services across one hundred countries and territories through an integrated global professional services network. | Accounting | 馃嚝馃嚪 Levallois-Perret | 9,534 | |
| 2 | [PwC France](https://www.tamtam.ai/c/pwc-france) (pwc.fr)
Offers consulting, audit, legal, and tax expertise, blending technology with multidisciplinary knowledge to accelerate sustainable business transformation for organizations. | Business Consulting and Services | 馃嚝馃嚪 Neuilly-sur-Seine | 4,109 | |
| 3 | [Grant-Thornton France](https://www.tamtam.ai/c/grant-thornton-france) (grantthornton.fr)
Provides audit, financial advisory, operational consulting, legal and tax advice, and sustainable transformation services to French businesses. | Financial Services | 馃嚝馃嚪 Neuilly-sur-Seine | 2,342 | 1964 |
| 4 | [In Extenso Ile-de-France](https://www.tamtam.ai/c/in-extenso-ile-de-france) (inextenso.fr)
Provides comprehensive accounting and consulting services to small and medium-sized businesses, guiding them from creation to transmission with local expert support. | Accounting | 馃嚝馃嚪 Malakoff | 147 | 1991 |
| 5 | [PwC Consulting - People & Organization](https://www.tamtam.ai/c/pwc-consulting-people-and-organization) (pwc.fr)
Specializing in consulting and audit services, the company focuses on human-centered transformation projects, integrating operational performance with human development for successful business outcomes | Business Consulting and Services | 馃嚝馃嚪 Neuilly-sur-Seine | 145 | 1970 |
| 6 | [PRICEWATERHOUSECOOPERS ADVISORY](https://www.tamtam.ai/c/pricewaterhousecoopers-advisory) (pwc.com)
An innovative community offering solutions through human ingenuity, technology, and products to enhance trust and achieve lasting results for organizations | Business Consulting and Services | 馃嚝馃嚪 Neuilly-sur-Seine | 136 | |
| 7 | [JLA](https://www.tamtam.ai/c/jla) (jla.fr)
Provides accounting, tax, social, and legal assistance. Offers consulting on fiscal and social optimization, organization, management, audits, due diligence, and business transfers. | Accounting | 馃嚝馃嚪 Courbevoie | 103 | |
| 8 | [Crowe HAF](https://www.tamtam.ai/c/crowe-haf) (crowe-haf.fr)
Provides financial, accounting, and consulting services, including audit, valuation, transaction support, and sustainability consulting for diverse clients in international contexts. | Financial Services | 馃嚝馃嚪 Levallois-Perret | 80 | 2007 |
| 9 | [ARPEGE](https://www.tamtam.ai/c/arpege) (arpege-conseils.fr)
Multidisciplinary firm providing accounting, consulting, and auditing services, offering collaborative tools, social support, legal assistance, and acquisition/valuation audits for clients. | Accounting | 馃嚝馃嚪 Rueil-Malmaison | 80 | 2003 |
| 10 | [Gestionphi](https://www.tamtam.ai/c/gestionphi) (gestionphi.fr)
An independent multidisciplinary consulting firm founded in the late 1990s by entrepreneurs, providing rapid and significant business development services | Accounting | 馃嚝馃嚪 Levallois-Perret | 66 | 1995 |
| 11 | [ADMINISTRO](https://www.tamtam.ai/c/administro) (administro.fr)
An accounting company in Antony, France, providing administrative services to businesses | Accounting | 馃嚝馃嚪 Antony | 64 | 2017 |
| 12 | [ARPADE](https://www.tamtam.ai/c/arpade) (arpade.fr)
Offers accounting, legal, tax, and social services. Available throughout France to provide expertise and support to clients. | Accounting | 馃嚝馃嚪 Levallois-Perret | 62 | 2007 |
| 13 | [CABINET FIPAR \| Audit, Conseil, Accompagnement & Expertise-Comptable](https://www.tamtam.ai/c/cabinet-fipar-audit-conseil-accompagnement-and-expertise-comptable) (cabinet-fipar.fr)
Offers accounting, auditing, and consulting services nationwide. Assists with company creation, financial statements, payroll, group restructuring, and struggling businesses. | Accounting | 馃嚝馃嚪 Boulogne-Billancourt | 57 | 2006 |
| 14 | [BACIS](https://www.tamtam.ai/c/bacis) (bacis.fr)
An accounting firm in the Paris-Ile de France region offers accounting, tax, social, and legal services to professionals, providing guidance throughout business development | Accounting | 馃嚝馃嚪 Nanterre | 52 | 2007 |
| 15 | [BVTC CONSEIL](https://www.tamtam.ai/c/bvtc-conseil) (bvtc-conseil.fr)
Expertise in accounting and auditing, focusing on the transport sector. They also provide personalized consulting for business creation and support clients with legal, commercial, and social poles. | Accounting | 馃嚝馃嚪 Asni猫res-sur-Seine | 43 | 2015 |
| 16 | [Afitec](https://www.tamtam.ai/c/afitec) (afitec.fr)
AFITEC is a Paris-based accounting firm with qualified and dynamic professionals offering real-time accounting services, along with specialized social and legal support | Accounting | 馃嚝馃嚪 Levallois-Perret | 42 | 2002 |
| 17 | [H3P](https://www.tamtam.ai/c/h3p) (h3p.com)
Providing accounting, audit, and consulting services with sector expertise to clients in France and internationally, supporting projects throughout their lifecycle. | Financial Services | 馃嚝馃嚪 Levallois-Perret | 39 | 2008 |
| 18 | [Groupe Stentor](https://www.tamtam.ai/c/groupe-stentor) (groupestentor.fr)
The company combines accounting, wealth management, and social welfare services to accompany clients in growing their businesses and personal assets, providing tailored advice and solutions | Financial Services | 馃嚝馃嚪 Neuilly-sur-Seine | 37 | 2011 |
| 19 | [IFEC Groupe](https://www.tamtam.ai/c/ifec-groupe) (ifec.eu)
Offers audit, accounting, CSR, and consulting services. Provides strategic monitoring, technical assistance, training, and quality control for financial and extra-financial projects. | Accounting | 馃嚝馃嚪 Boulogne-Billancourt | 33 | 1962 |
| 20 | [MAJHA](https://www.tamtam.ai/c/majha) (majhaaccounting.com)
Providing innovative and tailored accounting solutions for businesses to achieve a better financial future, primarily in the Paris region but nationally available. | Accounting | 馃嚝馃嚪 Colombes | 30 | 2019 |
| 21 | [GROUPE FIDUCIAIRE CHAFII](https://www.tamtam.ai/c/groupe-fiduciaire-chafii) (fiduciairechafii.fr)
Provides accounting expertise and IT development in accounting/management, offering close support to small and medium-sized businesses across various sectors. | Accounting | 馃嚝馃嚪 Courbevoie | 29 | 2015 |
| 22 | [AVEXXENS experts-comptables conseils](https://www.tamtam.ai/c/avexxens-experts-comptables-conseils) (avexxens-expert-comptable.fr)
Avexxens is an accounting firm offering comprehensive services in accounting, tax, payroll, legal assistance, and audit, focused on supporting businesses and professionals | Accounting | 馃嚝馃嚪 Antony | 29 | 1985 |
| 23 | [AJFEC](https://www.tamtam.ai/c/ajfec) (ajfec.com)
The firm provides accounting, auditing, and consulting services, supporting business leaders from creation to transmission, focusing on human contact and trust to enhance performance. | Accounting | 馃嚝馃嚪 Boulogne-Billancourt | 27 | 1995 |
| 24 | [fleuret associ茅s](https://www.tamtam.ai/c/fleuret-associes) (fleuret.eu)
Provides expert accounting, audit, legal, tax, and human resources advice to businesses and individuals, focusing on client proximity and digital innovation. | Accounting | 馃嚝馃嚪 Gennevilliers | 25 | 1976 |
| 25 | [Le Carr茅 Experts](https://www.tamtam.ai/c/le-carre-experts) (le-carre-experts.com)
A company offering accounting expertise and support for businesses and executives in legal, tax, social, administrative, and financial matters, with a focus on continuous improvement | Accounting | 馃嚝馃嚪 Vanves | 23 | 1983 |
| 26 | [Mindset Finance](https://www.tamtam.ai/c/mindset-finance) (mindsetfinance.fr)
Support for startups, TPEs, and SMEs through outsourced financial direction, cash management, business planning, reporting, and digital finance transformation. | Financial Services | 馃嚝馃嚪 Neuilly-sur-Seine | 17 | 2019 |
| 27 | [Cabinet d'expertise comptable Etchecom](https://www.tamtam.ai/c/cabinet-d-expertise-comptable-etchecom) (etchecom.fr)
Rely on us for all your accounting needs! Our firm in Rueil-Malmaison offers expert services Contact us for assistance today | Accounting | 馃嚝馃嚪 Rueil-Malmaison | 15 | 2005 |
| 28 | [Groupe Fiderec](https://www.tamtam.ai/c/groupe-fiderec) (fiderec.com)
Multidisciplinary team providing accounting, auditing, legal, fiscal, social management, business planning, and acquisition support for medium-sized companies. | Accounting | 馃嚝馃嚪 Boulogne-Billancourt | 14 | 1984 |
| 29 | [Cabinet Galaxy Conseil](https://www.tamtam.ai/c/cabinet-galaxy-conseil) (galaxy-conseil.fr)
Galaxy Conseil offers tailored consulting services in accounting and HR management, along with an integrated digital platform for streamlined financial monitoring and automation | Accounting | 馃嚝馃嚪 Levallois-Perret | 14 | 2002 |
| 30 | [SNR Audit](https://www.tamtam.ai/c/snr-audit) (groupe-snr.com)
A boutique firm specializing in audit, accounting, legal counsel, and business consulting, affiliated with a national network and international presence | Accounting | 馃嚝馃嚪 Neuilly-sur-Seine | 14 | 1996 |
## 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 12, 2026.
## More company lists in the Hauts-de-Seine department
- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Marketing and communications agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine) (235)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Education providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/education-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)
## The same list elsewhere in France
- [Accounting firms in France](https://www.tamtam.ai/l/accounting-firms-france) (1,879)
- [Accounting firms in 脦le-de-France](https://www.tamtam.ai/l/accounting-firms-ile-de-france) (557)
- [Accounting firms in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/accounting-firms-auvergne-rhone-alpes) (247)
- [Accounting firms in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/accounting-firms-provence-alpes-cote-dazur) (190)
- [Accounting firms in Occitanie](https://www.tamtam.ai/l/accounting-firms-occitanie) (173)
- [Accounting firms in Nouvelle-Aquitaine](https://www.tamtam.ai/l/accounting-firms-nouvelle-aquitaine) (129)
- [Accounting firms in Grand Est](https://www.tamtam.ai/l/accounting-firms-grand-est) (126)
- [Accounting firms in the Rh么ne department](https://www.tamtam.ai/l/accounting-firms-rhone) (113)
- [Accounting firms in Hauts-de-France](https://www.tamtam.ai/l/accounting-firms-hauts-de-france) (97)
- [Accounting firms in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/accounting-firms-bouches-du-rhone) (93)
- [Accounting firms in Pays de la Loire](https://www.tamtam.ai/l/accounting-firms-pays-de-la-loire) (90)
- [Accounting firms in Brittany](https://www.tamtam.ai/l/accounting-firms-brittany) (81)
- [Accounting firms in the Haute-Garonne department](https://www.tamtam.ai/l/accounting-firms-haute-garonne) (58)
- [Accounting firms in Bourgogne-Franche-Comt茅](https://www.tamtam.ai/l/accounting-firms-bourgogne-franche-comte) (57)
- [Accounting firms in the Nord department](https://www.tamtam.ai/l/accounting-firms-nord) (57)
- [Accounting firms in Normandy](https://www.tamtam.ai/l/accounting-firms-normandy) (55)
- [Accounting firms in the Gironde department](https://www.tamtam.ai/l/accounting-firms-gironde) (49)
- [Accounting firms in the H茅rault department](https://www.tamtam.ai/l/accounting-firms-herault) (48)
- [Accounting firms in the Alpes-Maritimes department](https://www.tamtam.ai/l/accounting-firms-alpes-maritimes) (39)
- [Accounting firms in the Loire-Atlantique department](https://www.tamtam.ai/l/accounting-firms-loire-atlantique) (39)
- [Accounting firms in Paris](https://www.tamtam.ai/l/accounting-firms-paris) (357)
- [Accounting firms in Marseille](https://www.tamtam.ai/l/accounting-firms-marseille) (62)
- [Accounting firms in Lyon](https://www.tamtam.ai/l/accounting-firms-lyon) (57)
- [Accounting firms in Toulouse](https://www.tamtam.ai/l/accounting-firms-toulouse) (43)
## The same list elsewhere
- [Accounting firms in the world](https://www.tamtam.ai/l/accounting-firms-in-the-world) (3,737)
- [Accounting firms in Europe](https://www.tamtam.ai/l/accounting-firms-in-europe) (2,855)
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Source: https://www.tamtam.ai/l/accounting-firms-hauts-de-seine