The financial services sector in Seine-Maritime is largely shaped by established insurance companies and regional banks. Matmut, with over 4,200 employees, provides diverse insurance products, while Crédit Agricole Normandie-Seine and Caisse d'Epargne Normandie are significant regional banking institutions. SPB Group specializes in insurance and assistance offers for daily products, and Helvetia Insurance France focuses on enterprise risk and marine insurance. La MAE is known for child and family insurance. These are generally mid-sized to large organizations.
A notable pattern is the concentration of headquarters in Rouen and Le Havre. Rouen hosts Matmut, La MAE, and several of their subsidiaries, alongside venture capital firm NCI. Le Havre is home to SPB Group, Helvetia Insurance France, and maritime insurance broker GUIAN. Bois-Guillaume also serves as a hub for regional banks.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 4,244 | ||||
| 2 |
Crédit Agricole Normandie-Seineca-normandie-seine.fr
Regional bank with 130 branches and online services for individuals, professionals, farmers, businesses, and public communities in Eure and Seine-Maritime. |
1,566 | |||
| 3 |
Caisse d'Epargne Normandiecaisse-epargne.fr
Regional bank serving individuals, professionals, businesses, and local authorities with tailored financial advice and community project support in Normandy. |
1,402 | |||
| 4 | 727 | ||||
| 5 |
Helvetia Insurance Francehelvetia.com
Specializes in enterprise risk, marine, and transport insurance for various sectors including construction, automotive fleets, art, and international programs. |
588 | |||
| 6 | 210 | ||||
| 7 |
Matmut Protection Juridiquematmut.fr
Offering Legal Protection guarantees for individuals and professionals as a subsidiary of the Matmut Group Stay updated on the Group and its subsidiaries on their LinkedIn page! |
173 | |||
| 8 | 76 | ||||
| 9 |
IKI Assurancesiki-assurances.fr
A new insurance broker offering tailored insurance solutions for families, seniors, and self-employed individuals, including health, life, and pet insurance products |
70 | |||
| 10 |
Inter Mutuelles Entreprises
Designs, manages, and distributes insurance contracts tailored for professionals, businesses, and associations, ensuring comprehensive coverage and support. |
58 | |||
| 11 | 35 | ||||
| 12 |
GUIAN - A Howden companyguian.com
Established in 1931, this company specializes in maritime insurance brokerage with offices across France, offering tailored insurance solutions for various transport sectors |
30 | |||
| 13 |
SPB Francespb.eu
Design and management of affinity insurance and assistance offers for everyday products and services including banking, telecom, mobility, and health equipment. |
24 | |||
| 14 |
Matmut Viematmut.fr
Life insurance subsidiary of Groupe Matmut providing solutions to protect individuals financially and ensure the security of their loved ones Visit Matmut's business page for updates |
24 | |||
| 15 |
Matmut Patrimoinematmut.fr
A company offering personalized wealth management advice and solutions for individuals and businesses, aiming to make wealth management accessible to all |
22 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
ASSURANCE Serviceassurance-service.fr
A local insurance agency offers a range of insurance products for individuals, professionals, and businesses, tailored to their needs and expectations |
19 | |||
| 17 |
LHL Associéslhl-associes.fr
This company helps clients manage and optimize their wealth through investment, tax optimization, real estate transactions, and legacy preservation across generations |
19 | |||
| 18 | 
Assurance Goguen Champlain Insurance Inc.ajg.com
Specializing in insurance products for businesses, our experts tailor plans to maximize coverage, reduce liability, and protect against various risks |
14 | |||
| 19 |
Buisson Assurancesbuisson-assurances.fr
Specializing in social and wealth protection for over 50 years, offering tailored insurance solutions in Retirement, Health, and Life Insurance for individuals and businesses |
12 | |||
| 20 |
Groupe 2Rgroupe2r.com
Groupe 2R specializes in tax and financial consulting, optimizing taxpayers' wealth through personalized audits and identifying tax deduction/reduction opportunities |
11 | |||
| 21 |
Seine Financementseinefinancement.fr
Since 2011, a mortgage brokerage firm in Rouen has been assisting clients with real estate acquisitions, loan refinancing, and insurance |
11 | |||
| 22 |
Cabinet Follet assurancesgenerali.fr
For over 52 years, the FOLLET Agency provides personalized insurance services specializing in Hospitality, Transportation, Industrial Risks, and more for their clients' needs |
11 | |||
| 23 |
Les Financements Normandsmeilleurtaux.com
A French Fintech company revolutionizing credit, insurance, and investments by providing comprehensive information, impartial advice, and personalized support through a cutting-edge digital platform |
11 | |||
| 24 |
ASTRE PATRIMOINEastre-patrimoine.fr
An independent Wealth Management firm offering tailored strategies in collaboration with accountants and notaries, free from affiliations with financial institutions |
7 | |||
| 25 |
Groupe Hecquet Solutions
Specializing in automotive solutions for over 50 years, this company helps businesses build and finance their company fleet |
7 | |||
| 26 |
Harmony Courtagecourtier.vousfinancer.com
A company in Rouen helps clients with financing for investments, renovations, property purchases, and expansions in the region Contact them for assistance |
5 | |||
| 27 |
Galilée Financesgalilee-finances.fr
Insurance broker near Yvetot (76) providing tailor-made solutions in insurance including lender, life, health, property, and credit restructuring for individuals, professionals, and businesses |
5 | |||
| 28 |
AT ASSISTANCEatassistance.com
Specializing in financial risk coverage for work-related accidents, this company provides unique solutions for professionals including insurance, legal support, and prevention measures |
3 | |||
| 29 |
Agence Godjikian
We assist over 5000 clients in France with a wide range of insurance products and services covering auto, home, health, savings, retirement, and more |
3 | |||
| 30 |
AGC ASSURANCESagc-assurances.fr
Independent generalist insurance broker providing personalized, high-end insurance services for individuals, professionals, businesses, and local authorities with a commitment to customer interests |
2 | |||
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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 13, 2026.
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The same list elsewhere in France
- Financial services firms in France 3,093
- Financial services firms in Île-de-France 1,729
- Financial services firms in Auvergne-Rhône-Alpes 245
- Financial services firms in the Hauts-de-Seine department 198
- Financial services firms in Grand Est 155
- Financial services firms in Provence-Alpes-Côte d'Azur 147
- Financial services firms in Occitanie 139
- Financial services firms in Nouvelle-Aquitaine 132
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- Financial services firms in Hauts-de-France 122
- Financial services firms in Pays de la Loire 113
- Financial services firms in Brittany 87
- Financial services firms in the Nord department 81
- Financial services firms in the Gironde department 80
- Financial services firms in the Bouches-du-Rhône department 70
- Financial services firms in the Haute-Garonne department 69
- Financial services firms in the Loire-Atlantique department 65
- Financial services firms in Normandy 59
- Financial services firms in the Alpes-Maritimes department 45
- Financial services firms in the Ille-et-Vilaine department 45
- Financial services firms in Paris 1,359
- Financial services firms in Lyon 105
- Financial services firms in Bordeaux 50
- Financial services firms in Toulouse 44