# 30 leading professional services firms in the Maine-et-Loire department

Tamtam tracks 38 professional services firms headquartered in the Maine-et-Loire department. This list ranks the 30 largest by number of employees on LinkedIn, led by Baker Tilly France, In Extenso Centre Ouest and Altonéo. Their median headcount is 65. Half of them were founded in 1991 or later. The most common headquarters are Angers (18), Cholet (4) and Beaucouzé (2).

This selection features professional services firms in Maine-et-Loire, predominantly mid-sized companies with a strong presence in accounting and legal fields. Notable firms include Baker Tilly France, which offers global professional services; In Extenso Centre Ouest, an accounting and professional services firm for SMEs; ORATIO Avocats, providing legal support for businesses; and Becouze, an independent audit and consulting company.

The data shows a concentration of these firms in Angers, with several companies like Altonéo, Cerfrance Maine-et-Loire, and SOREX specializing in accounting and financial expertise. Many of these companies were founded between the 1960s and 1980s, indicating a well-established professional services sector in the region.

🇫🇷 Maine-et-Loire · 30 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Baker Tilly France](https://www.tamtam.ai/c/baker-tilly-france) (bakertilly.fr)<br>Providing global professional services to businesses and governments, helping achieve goals, seize opportunities, and maintain competitiveness worldwide. | Business Consulting and Services | 🇫🇷 Angers | 1,324 | 1963 |
| 2 | [In Extenso Centre Ouest](https://www.tamtam.ai/c/in-extenso-centre-ouest) (inextenso.fr)<br>A leading firm in accounting and professional services for small and medium-sized businesses in western France, offering comprehensive services at every stage of business growth | Accounting | 🇫🇷 Cholet | 366 | 1991 |
| 3 | [Altonéo](https://www.tamtam.ai/c/altoneo) (altoneo.com)<br>Altonéo provides services to support business leaders in optimizing overall company performance through personal strategy, management tools, employee support, and employer obligations | Accounting | 🇫🇷 Angers | 233 | 2014 |
| 4 | [ORATIO Avocats](https://www.tamtam.ai/c/oratio-avocats) (oratio-avocats.com)<br>Provides durable legal support and business law services for executives and companies through a large network of French offices and international partnerships. | Law Practice | 🇫🇷 Angers | 224 | 1970 |
| 5 | [Becouze](https://www.tamtam.ai/c/becouze) (becouze-talents.com)<br>An independent audit, expertise, and consulting company, part of the global Crowe network, providing tailored solutions to support organizations internationally | Financial Services | 🇫🇷 Angers | 198 | 1982 |
| 6 | [Cerfrance Maine-et-Loire](https://www.tamtam.ai/c/cerfrance-maine-et-loire) (maine-et-loire.cerfrance.fr)<br>Accounting and consulting firm with 12 local offices, supporting entrepreneurs to improve business performance through various specialized services offered by 250 experts | Accounting | 🇫🇷 Angers | 195 | 1976 |
| 7 | [SOREX](https://www.tamtam.ai/c/sorex) (sorex.pro)<br>Specialized multidisciplinary firm offering financial, legal, social, and strategic expertise with personalized services for professional and personal life stages | Accounting | 🇫🇷 Angers | 165 | 1963 |
| 8 | [OFFICE NOTARIAL DU RALLIEMENT - NOTAIRES](https://www.tamtam.ai/c/office-notarial-du-ralliement-notaires) (ralliement.notaires.fr)<br>The notaries at this office provide legal services in family law, real estate, business law, rural law, and private international law | Legal Services | 🇫🇷 Angers | 162 | 1810 |
| 9 | [Synergis Environnement](https://www.tamtam.ai/c/synergis-environnement) (synergis-environnement.com)<br>Independent firm specializes environmental, agricultural, regulatory engineering. Teams support public, private project owners securing projects against evolving regulatory requirements. | Environmental Services | 🇫🇷 Beaucouzé | 138 | 2020 |
| 10 | [TGS France Avocats](https://www.tamtam.ai/c/tgs-france-avocats) (tgs-avocats.fr)<br>Legal services in corporate law, taxation, labor law, and contracts focusing on development, transformation, innovation, and transmission through agile and collaborative methods. | Law Practice | 🇫🇷 Angers | 127 |  |
| 11 | [ESSCA Junior Conseil](https://www.tamtam.ai/c/essca-junior-conseil) (esscajuniorconseil.com)<br>Student-run consulting firm offering market research, business plans, communication strategies, and social climate studies for diverse French companies. | Business Consulting and Services | 🇫🇷 Angers | 118 | 1972 |
| 12 | [FIDUCIAIRE AUDIT CONSEIL - FIDACO](https://www.tamtam.ai/c/fiduciaire-audit-conseil-fidaco) (fidaco.com)<br>A company specializing in audit, accounting, and consulting services for medium to large enterprises, nonprofits, and public sector entities | Accounting | 🇫🇷 Angers | 116 | 1976 |
| 13 | [Simphonis](https://www.tamtam.ai/c/simphonis) (simphonis.com)<br>SIMPHONIS offers tailored digital solutions for businesses, specializing in commercial configuration, app development, engineering, and ERP/CRM integration for growth and performance | IT Services and IT Consulting | 🇫🇷 Beaucouzé | 85 | 2005 |
| 14 | [AEPE-Gingko](https://www.tamtam.ai/c/aepe-gingko) (aepe-gingko.fr)<br>Provides environmental and landscape consulting, specializing in sustainable development, biodiversity preservation, and impact studies for renewable energy and infrastructure projects. | Environmental Services | 🇫🇷 La Ménitré | 71 | 2005 |
| 15 | [Laboratoire Microsept](https://www.tamtam.ai/c/laboratoire-microsept) (laboratoire-microsept.fr)<br>Microbiological analyses under COFRAC accreditation, validation studies per ISO 16140-2, hygiene consulting, training, and certification support for food and environment products. | Biotechnology Research | 🇫🇷 Le Lion-d'Angers | 65 | 1994 |
| 16 | [Groupe EVS](https://www.tamtam.ai/c/groupe-evs) (groupeevs.eu)<br>French leader in meat cutting services on client production sites. Provides agile, high-performing solutions for food industry needs, focusing on quality, reliability, food safety. | Food and Beverage Manufacturing | 🇫🇷 Verrières-en-Anjou | 52 | 1982 |
| 17 | [CDP49](https://www.tamtam.ai/c/cdp49) (cdp49.fr)<br>A cooperative in Angers, part of a national network, supports entrepreneurs in testing, developing, and managing their businesses within a shared structure | Business Consulting and Services | 🇫🇷 Angers | 46 | 2006 |
| 18 | [SCOP RPE49](https://www.tamtam.ai/c/scop-rpe49) (rpe49.fr)<br>This company provides HR consulting, recruitment, outplacement, and career transition services for SMEs, ESSE, and individuals, offering support for job seekers and employees | Human Resources Services | 🇫🇷 Cholet | 39 | 1996 |
| 19 | [L'hirondelle](https://www.tamtam.ai/c/l-hirondelle) (lhrndl.com)<br>Company specializing in Asia skincare market entry & development Offers market study, strategic planning, regulatory advice, marketing & sales execution for successful market presence | Personal Care Product Manufacturing | 🇫🇷 Angers | 36 | 2012 |
| 20 | [Cabinet Durand Godeau](https://www.tamtam.ai/c/cabinet-durand-godeau) (cabinet-dg.fr)<br>A firm in CHOLET, PAYS DE LA LOIRE, offering expertise in accounting, auditing, and advisory services through a team of 30 professionals | Accounting | 🇫🇷 Cholet | 31 |  |
| 21 | [LAROCHE GIRAULT ET ASSOCIES - NOTAIRES](https://www.tamtam.ai/c/laroche-girault-et-associes-notaires) (laroche-girault.notaires.fr)<br>A team of notaries and legal professionals providing expert advice in family, real estate, estate planning, and taxation since 1472 | Legal Services | 🇫🇷 Angers | 25 | 1472 |
| 22 | [AureXus](https://www.tamtam.ai/c/aurexus) (linktr.ee)<br>Specializing in digitizing and converting content, creating 3D models, and developing interactive e-learning solutions for various industries | Software Development | 🇫🇷 Sainte-Gemmes-sur-Loire | 24 |  |
| 23 | [ACS Informatique](https://www.tamtam.ai/c/acs-informatique) (acsinfo.fr)<br>With 16 years of experience, specializing in computerized accounting, management, and office solutions Provides software, network, hardware, and custom application development for SMEs across all sectors Also offers personalized support services | Software Development | 🇫🇷 Les Ponts-de-Cé | 24 | 1984 |
| 24 | [AVOCONSEIL](https://www.tamtam.ai/c/avoconseil) (avoconseil.com)<br>A business law firm providing legal support to companies and executives in areas such as corporate law, employment law, commercial law, competition law, and more | Law Practice | 🇫🇷 Angers | 22 | 1997 |
| 25 | [AAZ CONSEIL EXPERTISE ET AUDIT](https://www.tamtam.ai/c/aaz-conseil-expertise-et-audit) (aazexperts.com)<br>A firm specializing in accounting, auditing, and consulting services for businesses, NGOs, and public institutions in France and 8 WAEMU countries | Accounting | 🇫🇷 Angers | 19 | 2019 |
| 26 | [POLARIS CONSEILS](https://www.tamtam.ai/c/polaris-conseils) (polarisconseils.com)<br>Independent accounting firm providing expert accounting and consulting services from offices in Trélazé and Joué-lès-Tours, France. | Accounting | 🇫🇷 Trélazé | 19 | 2010 |
| 27 | [08H08 Avocats](https://www.tamtam.ai/c/08h08-avocats) (08h08.com)<br>Business law firm based in Angers, providing tailored legal expertise to professionals in private and public sectors to meet their specific needs and challenges | Law Practice | 🇫🇷 Angers | 18 | 2012 |
| 28 | [Cabinet SARECO](https://www.tamtam.ai/c/cabinet-sareco) (cabinetsareco.fr)<br>SARECO is an independent accounting and audit firm in the Pays de Loire region, offering expertise to a variety of businesses and organizations | Accounting | 🇫🇷 Angers | 16 | 1976 |
| 29 | [Codekraft](https://www.tamtam.ai/c/codekraft) (codekraft.fr)<br>Codekraft specializes in developing custom web platforms, mobile apps, and business tools, focusing on long-term collaboration and deep understanding of client's needs | IT Services and IT Consulting | 🇫🇷 Angers | 16 | 2017 |
| 30 | [Agence Adhoc](https://www.tamtam.ai/c/agence-adhoc) (agenceadhoc.com)<br>A creative and bold team providing tailored communication solutions including branding, design, marketing, events, digital services, advertising, and more | Advertising Services | 🇫🇷 Cholet | 6 | 1989 |

## 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 15, 2026.

## More company lists in the Maine-et-Loire department

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- [Accounting firms in the Maine-et-Loire department](https://www.tamtam.ai/l/accounting-firms-maine-et-loire) (25)
- [Food and Beverage Manufacturing companies in the Maine-et-Loire department](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-maine-et-loire) (25)
- [Distributors and wholesalers in the Maine-et-Loire department](https://www.tamtam.ai/l/distributors-and-wholesalers-maine-et-loire) (24)

## The same list elsewhere in France

- [Professional services firms in France](https://www.tamtam.ai/l/professional-services-firms-france) (6,607)
- [Professional services firms in Île-de-France](https://www.tamtam.ai/l/professional-services-firms-ile-de-france) (3,375)
- [Professional services firms in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/professional-services-firms-auvergne-rhone-alpes) (710)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Professional services firms in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/professional-services-firms-provence-alpes-cote-dazur) (432)
- [Professional services firms in Occitanie](https://www.tamtam.ai/l/professional-services-firms-occitanie) (399)
- [Professional services firms in the Rhône department](https://www.tamtam.ai/l/professional-services-firms-rhone) (398)
- [Professional services firms in Grand Est](https://www.tamtam.ai/l/professional-services-firms-grand-est) (318)
- [Professional services firms in Nouvelle-Aquitaine](https://www.tamtam.ai/l/professional-services-firms-nouvelle-aquitaine) (308)
- [Professional services firms in Hauts-de-France](https://www.tamtam.ai/l/professional-services-firms-hauts-de-france) (260)
- [Professional services firms in Pays de la Loire](https://www.tamtam.ai/l/professional-services-firms-pays-de-la-loire) (253)
- [Professional services firms in the Bouches-du-Rhône department](https://www.tamtam.ai/l/professional-services-firms-bouches-du-rhone) (249)
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- [Professional services firms in the Nord department](https://www.tamtam.ai/l/professional-services-firms-nord) (178)
- [Professional services firms in Brittany](https://www.tamtam.ai/l/professional-services-firms-brittany) (167)
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- [Professional services firms in the Gironde department](https://www.tamtam.ai/l/professional-services-firms-gironde) (151)
- [Professional services firms in Normandy](https://www.tamtam.ai/l/professional-services-firms-normandy) (114)
- [Professional services firms in the Yvelines department](https://www.tamtam.ai/l/professional-services-firms-yvelines) (108)
- [Professional services firms in Paris](https://www.tamtam.ai/l/professional-services-firms-paris) (2,240)
- [Professional services firms in Lyon](https://www.tamtam.ai/l/professional-services-firms-lyon) (264)
- [Professional services firms in Toulouse](https://www.tamtam.ai/l/professional-services-firms-toulouse) (139)
- [Professional services firms in Marseille](https://www.tamtam.ai/l/professional-services-firms-marseille) (123)
- [Professional services firms in Boulogne-Billancourt](https://www.tamtam.ai/l/professional-services-firms-boulogne-billancourt) (102)

## The same list elsewhere

- [Professional services firms in the world](https://www.tamtam.ai/l/professional-services-firms-in-the-world) (24,736)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,696)

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Source: https://www.tamtam.ai/l/professional-services-firms-maine-et-loire