# The 30 largest accounting firms in the Nord department

Tamtam tracks 57 accounting firms headquartered in the Nord department. This list ranks the 30 largest by number of employees on LinkedIn, led by Diligentia | Audit • Conseil • Expertise, RFN and Valoxy, Expert-Comptable mais pas que…. Their median headcount is 46. Half of them were founded in 1997 or later. The most common headquarters are Lille (8), Douai (2) and La Madeleine (2).

The accounting firms in Nord department primarily offer audit, tax, legal, and social support. These are mostly mid-sized firms, with Diligentia (133 employees) and RFN (132 employees) being the largest. Valoxy (125 employees) provides comprehensive business support including IT and HR, while FCC Experts-Comptables & Avocats (122 employees) specializes in sectors like pharmacy and medicine. TALENZ COMEXPERT (80 employees) offers financial advice and management support, and CTN FRANCE (78 employees) provides a wide range of services including data management.

A notable pattern among these firms is their focus on comprehensive business support beyond traditional accounting, often incorporating legal, social, HR, and IT services. Many firms, such as Valoxy (founded 2005) and Terre d'Entrepreneurs (founded 2019), are relatively young, indicating a recent growth in the sector.

🇫🇷 Nord · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Diligentia \| Audit • Conseil • Expertise](https://www.tamtam.ai/c/diligentia-audit-conseil-expertise) (diligentia.fr)<br>An accounting and auditing firm in Northern France offering personalized support in accounting, taxation, legal, and social matters for businesses and professionals | Accounting | 🇫🇷 Lille | 133 |  |
| 2 | [RFN](https://www.tamtam.ai/c/rfn) (rfn.fr)<br>Support for Belgian and Dutch investors in France with accounting, taxation, social law, and clear guidance throughout investment projects. | Financial Services | 🇫🇷 Boeschepe | 132 | 1984 |
| 3 | [Valoxy, Expert-Comptable mais pas que…](https://www.tamtam.ai/c/valoxy-expert-comptable-mais-pas-que) (valoxy.org)<br>Accounting firm founded in 2005, providing comprehensive business support in audit, legal, HR, IT, communication, recruitment, tax, management, and mergers/acquisitions across Hauts-de-France | Accounting | 🇫🇷 La Madeleine | 125 | 2005 |
| 4 | [FCC Experts-Comptables & Avocats](https://www.tamtam.ai/c/fcc-experts-comptables-and-avocats) (fcconseil.com)<br>Accounting and audit firm offering services in accounting, payroll, legal assistance, tailored to various sectors like pharmacy, medicine, associations, with a team of experts | Accounting | 🇫🇷 Marcq-en-Barœul | 122 | 1962 |
| 5 | [TALENZ COMEXPERT](https://www.tamtam.ai/c/talenz-comexpert) (talenz.fr)<br>Provide accounting, auditing, financial advice, tax assistance, and management support to diverse clients across multiple industries in France. | Accounting | 🇫🇷 Saint-André-lez-Lille | 80 |  |
| 6 | [CTN FRANCE](https://www.tamtam.ai/c/ctn-france) (ctn-france.fr)<br>A team of 10 partners and 100 employees offering a wide range of services including accounting, auditing, legal, HR, and data management solutions | Accounting | 🇫🇷 Lezennes | 78 | 1929 |
| 7 | [Aequitas Expertise & Conseil \| Audit](https://www.tamtam.ai/c/aequitas-expertise-and-conseil-audit) (aequitas.fr)<br>Aequitas is an accounting and auditing firm with expertise, innovation, and digital tools to support clients in Hauts-de-France region Boosting projects for success | Accounting | 🇫🇷 Douai | 77 |  |
| 8 | [STC AUDIT ET CONSEIL](https://www.tamtam.ai/c/stc-audit-et-conseil) (stc-conseil.com)<br>STC Audit & Conseil is more than an accounting and audit firm, they are strategic partners providing personalized guidance in accounting, management, tax, and more | Accounting | 🇫🇷 Tourcoing | 74 | 1961 |
| 9 | [In Extenso Nord de France](https://www.tamtam.ai/c/in-extenso-nord-de-france) (inextenso.fr)<br>Provides comprehensive professional services to business leaders, artisans, traders, liberal professions, and association managers: accounting, tax, legal, social, payroll, wealth management, innovation, tourism, and business transfer. | Accounting | 🇫🇷 Wasquehal | 74 |  |
| 10 | [SAFIR](https://www.tamtam.ai/c/safir)<br>SAFIR advises business leaders in managing their activities, growth strategies, acquisitions, business transfers, offering accounting, legal, and wealth management services | Financial Services | 🇫🇷 Douai | 60 | 1993 |
| 11 | [ECA Expertise](https://www.tamtam.ai/c/eca-expertise) (eca-groupe.com)<br>Accounting firm providing comprehensive legal, fiscal, social, and accounting advice, supporting businesses and their leaders sustainably and attentively. | Financial Services | 🇫🇷 Cambrai | 59 | 1972 |
| 12 | [Terre d'Entrepreneurs](https://www.tamtam.ai/c/terre-d-entrepreneurs) (terre-d-entrepreneurs.com)<br>Specialized accounting firm providing personalized support in business creation, project feasibility, real estate strategy, and social management services. | Accounting | 🇫🇷 Lille | 58 | 2019 |
| 13 | [Catelys](https://www.tamtam.ai/c/catelys) (catelys.fr)<br>Independent accounting firm in Lille since 1948, offering personalized services to help businesses with their financial management and development | Accounting | 🇫🇷 Lille | 46 | 1948 |
| 14 | [Experts Team](https://www.tamtam.ai/c/experts-team) (expertsteam.fr)<br>The company offers accounting and auditing services to businesses across all sectors, focusing on availability, trust, and advisory for long-term partnerships | Accounting | 🇫🇷 Lambersart | 46 | 2004 |
| 15 | [FIL ROUGE - Conseils et Expertise Comptable](https://www.tamtam.ai/c/fil-rouge-conseils-et-expertise-comptable) (filrouge-expertscomptables.com)<br>Provides accounting expertise and consulting services to businesses, focusing on financial management, compliance, and strategic advice. | Accounting | 🇫🇷 Marcq-en-Barœul | 46 | 1993 |
| 16 | [Crowe COGEFIS - Groupe Fideliance](https://www.tamtam.ai/c/crowe-cogefis-groupe-fideliance) (crowe.com)<br>COGEFIS is an independent accounting and auditing firm, part of the global network CROWE, providing specialized services to various organizations | Accounting | 🇫🇷 Lille | 42 | 1978 |
| 17 | [Alliance Experts](https://www.tamtam.ai/c/alliance-experts) (allianceexperts.fr)<br>An audit and accounting firm in France offering a range of services including audit, accounting, payroll outsourcing, evaluation, due diligence, and training | Accounting | 🇫🇷 Tourcoing | 39 | 2005 |
| 18 | [Numbr Lille](https://www.tamtam.ai/c/numbr-lille) (numbr.co)<br>A certified accounting firm in Lille offers personalized support from company creation to development, tailored to individual goals | Accounting | 🇫🇷 Lille | 36 |  |
| 19 | [Cabinet d'expertise comptable Joël Pruvost](https://www.tamtam.ai/c/cabinet-d-expertise-comptable-joel-pruvost) (comptable-douai.com)<br>Since 1992, our team of 35 professionals in the Hauts de France region provides expert legal and fiscal advice to support your projects and strategic decisions | Accounting | 🇫🇷 Waziers | 31 | 1992 |
| 20 | [DBLA - Decourcelle Barrois Loridan Associés](https://www.tamtam.ai/c/dbla-decourcelle-barrois-loridan-associes) (dbla.fr)<br>Accounting, auditing, payroll, and consolidation services including financial expertise, organizational audit, business valuation, and management of corporate assets and real estate | Financial Services | 🇫🇷 Lille | 30 | 2012 |
| 21 | [Experts & Co](https://www.tamtam.ai/c/experts-and-co) (expertsandco.com)<br>Our clients, business leaders and entrepreneurs, receive tailored financial, accounting, legal, and regulatory services to ensure the success and growth of their ventures | Financial Services | 🇫🇷 Villeneuve-d'Ascq | 28 | 1997 |
| 22 | [Dynamétrie](https://www.tamtam.ai/c/dynametrie) (dynametrie.com)<br>Founded in 2019, this consulting firm bridges accounting and technology, offering services in consolidation, performance management, and accounting expertise with a focus on digitalization | Accounting | 🇫🇷 Wambrechies | 28 | 2019 |
| 23 | [Equidem Conseil, société d'Expertise Comptable](https://www.tamtam.ai/c/equidem-conseil-societe-d-expertise-comptable) (equidem-conseil.fr)<br>Equidem Conseil focuses on building trust with clients through transparent financial guidance, offering tailored solutions for various business stages and needs | Accounting | 🇫🇷 Marquette-lez-Lille | 28 | 2014 |
| 24 | [WINGEST AUDIT & EXPERTISE](https://www.tamtam.ai/c/wingest-audit-and-expertise)<br>WINGEST AUDIT & EXPERTISE is a certified accounting firm with offices in Epinay sur Seine and Lille, offering expert services | Accounting | 🇫🇷 Lille | 27 | 2015 |
| 25 | [Place des Experts ⌂ Cabinet d'expertise comptable](https://www.tamtam.ai/c/place-des-experts-cabinet-d-expertise-comptable) (placedesexperts.fr)<br>Accounting firm providing personalized financial management, tax optimization, business planning, and startup support for diverse business sectors and entrepreneurs. | Accounting | 🇫🇷 La Madeleine | 26 |  |
| 26 | [CAAG](https://www.tamtam.ai/c/caag)<br>An accounting firm based in France offering comprehensive financial, social, and legal services, specializing in regulated professions, especially pharmacy sector clients | Accounting | 🇫🇷 Villeneuve-d'Ascq | 26 | 2010 |
| 27 | [ALTUS CONSEILS - GROUPE AFIGEC](https://www.tamtam.ai/c/altus-conseils-groupe-afigec) (afigec.com)<br>An accounting firm located in Lille, France, providing financial advisory services and solutions to businesses in the region | Business Consulting and Services | 🇫🇷 Lille | 25 | 2004 |
| 28 | [LPDE](https://www.tamtam.ai/c/lpde) (lpde.pro)<br>Accounting expertise supporting entrepreneurs from business plan validation to legal structure advice, financing assistance, and innovative management solutions. | Accounting | 🇫🇷 Wambrechies | 22 | 2016 |
| 29 | [Bernard Timmerman Chartered Accountants Firm](https://www.tamtam.ai/c/bernard-timmerman-chartered-accountants-firm) (btimmerman.fr)<br>A team of 40 professionals providing expertise in accounting, payroll, legal advice, business consulting, auditing, and more to a diverse range of clients and industries | Accounting | 🇫🇷 Sainghin-en-Mélantois | 22 | 1966 |
| 30 | [SLIGEC-CPA](https://www.tamtam.ai/c/sligec-cpa) (sligec.com)<br>Established in 1988, our team offers multidisciplinary expertise to support businesses from creation to transition, serving clients across various sectors with tailored solutions | Accounting | 🇫🇷 Ronchin | 18 | 1988 |

## 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 Nord department

- [The largest companies in the Nord department](https://www.tamtam.ai/l/largest-companies-nord) (2,806)
- [Multinational companies in the Nord department](https://www.tamtam.ai/l/multinational-companies-nord) (332)
- [Retail chains in the Nord department](https://www.tamtam.ai/l/retail-chains-nord) (268)
- [Companies with in-house R&D in the Nord department](https://www.tamtam.ai/l/r-and-d-companies-nord) (237)
- [Manufacturers in the Nord department](https://www.tamtam.ai/l/manufacturers-nord) (204)
- [Professional services firms in the Nord department](https://www.tamtam.ai/l/professional-services-firms-nord) (178)
- [IT services companies in the Nord department](https://www.tamtam.ai/l/it-services-companies-nord) (170)
- [IT Services and IT Consulting companies in the Nord department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-nord) (169)
- [SaaS companies in the Nord department](https://www.tamtam.ai/l/saas-companies-nord) (163)
- [Family-owned companies in the Nord department](https://www.tamtam.ai/l/family-owned-companies-nord) (156)
- [Software Development companies in the Nord department](https://www.tamtam.ai/l/software-development-companies-nord) (141)
- [Public sector organisations in the Nord department](https://www.tamtam.ai/l/public-sector-organisations-nord) (135)
- [Distributors and wholesalers in the Nord department](https://www.tamtam.ai/l/distributors-and-wholesalers-nord) (133)
- [Hardware manufacturers in the Nord department](https://www.tamtam.ai/l/hardware-companies-nord) (124)
- [Consulting firms in the Nord department](https://www.tamtam.ai/l/consulting-firms-nord) (115)
- [Retail companies in the Nord department](https://www.tamtam.ai/l/retail-companies-nord) (108)
- [Education providers in the Nord department](https://www.tamtam.ai/l/education-companies-nord) (103)
- [Real Estate companies in the Nord department](https://www.tamtam.ai/l/real-estate-companies-nord) (92)
- [Critical infrastructure operators in the Nord department](https://www.tamtam.ai/l/critical-infrastructure-operators-nord) (87)
- [Companies with a mobile app in the Nord department](https://www.tamtam.ai/l/companies-with-mobile-app-nord) (83)
- [Healthcare providers in the Nord department](https://www.tamtam.ai/l/healthcare-providers-nord) (82)
- [E-commerce companies in the Nord department](https://www.tamtam.ai/l/ecommerce-companies-nord) (81)
- [Financial services firms in the Nord department](https://www.tamtam.ai/l/financial-services-firms-nord) (81)
- [Business Consulting and Services companies in the Nord department](https://www.tamtam.ai/l/business-consulting-and-services-companies-nord) (81)

## The same list elsewhere in France

- [Accounting firms in France](https://www.tamtam.ai/l/accounting-firms-france) (1,879)
- [Accounting firms in Île-de-France](https://www.tamtam.ai/l/accounting-firms-ile-de-france) (557)
- [Accounting firms in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/accounting-firms-auvergne-rhone-alpes) (247)
- [Accounting firms in Provence-Alpes-Côte 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 Rhône 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-Rhône 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 Hauts-de-Seine department](https://www.tamtam.ai/l/accounting-firms-hauts-de-seine) (67)
- [Accounting firms in the Haute-Garonne department](https://www.tamtam.ai/l/accounting-firms-haute-garonne) (58)
- [Accounting firms in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/accounting-firms-bourgogne-franche-comte) (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 Hérault 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-nord