# 30 leading professional services firms in the Gironde department
Tamtam tracks 151 professional services firms headquartered in the Gironde department. This list ranks the 30 largest by number of employees on LinkedIn, led by Filhet-Allard, RETRAITE compl猫te and SERMA Group. Their median headcount is 227. Half of them were founded in 1994 or later. The most common headquarters are Bordeaux (11), Le Haillan (5) and Pessac (5).
This selection of professional services firms in Gironde includes large, established companies as well as younger firms. Industries represented include IT services, business consulting, and insurance. Many of these firms are headquartered in Bordeaux, with others in nearby towns such as Pessac, M茅rignac, and Le Haillan.Filhet-Allard, founded in 1846, is an insurance brokerage. SERMA Group provides electronics solutions, while CAP INGELEC is an engineering company specializing in datacenters and critical utilities. CHEOPS TECHNOLOGY focuses on secure IT infrastructure and cloud computing. The data shows a concentration of IT services and consulting firms, reflecting a strong presence of technology-oriented professional services in the region. There is also a notable mix of long-standing companies like Filhet-Allard and more recently established firms such as Notaires Office, founded in 2020.
馃嚝馃嚪 Gironde 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Filhet-Allard](https://www.tamtam.ai/c/filhet-allard) (filhetallard.com)
A leading French insurance brokerage specializing in corporate risks and employee benefits, offering tailored insurance solutions, personalized service, and a motivating environment for employees | Insurance | 馃嚝馃嚪 Bordeaux | 1,700 | 1846 |
| 2 | [RETRAITE compl猫te](https://www.tamtam.ai/c/retraite-complete) (retraite-complete.com)
The company provides consulting services to help individuals smoothly transition into retirement, anticipate their financial needs, and navigate post-career opportunities | Business Consulting and Services | 馃嚝馃嚪 Eysines | 1,569 | |
| 3 | [SERMA Group](https://www.tamtam.ai/c/serma-group) (serma.com)
An independent, international platform specializing in electronics solutions and services for high-stress environments, offering expertise in 5 core business lines | Business Consulting and Services | 馃嚝馃嚪 Pessac | 1,268 | 1991 |
| 4 | [CAP INGELEC](https://www.tamtam.ai/c/cap-ingelec) (capingelec.com)
An independent engineering company with over 30 years of experience, specializing in Datacenters, Critical Utilities, Industry, Cleanrooms, Agribusiness, Wines & Spirits | Construction | 馃嚝馃嚪 M茅rignac | 773 | 1992 |
| 5 | [CF - Compagnie Fiduciaire](https://www.tamtam.ai/c/cf-compagnie-fiduciaire) (compagnie-fiduciaire.com)
Provides accounting, auditing, and consulting services with a strong regional presence and over 600 professionals across multiple French regions. | Business Consulting and Services | 馃嚝馃嚪 Bordeaux | 728 | 1980 |
| 6 | [CHEOPS TECHNOLOGY](https://www.tamtam.ai/c/cheops-technology-canejan) (cheops-technology.com)
Specializing in secure IT infrastructure, this company is a leader in Cloud Computing in France With 4 divisions, they offer expertise in Cloud, Cybersecurity, and Technology Modernization | IT Services and IT Consulting | 馃嚝馃嚪 Can茅jan | 601 | 1998 |
| 7 | [Heliaq Solutions](https://www.tamtam.ai/c/heliaq-solutions) (kct.fr)
Provision of IT infrastructure, integration, consulting, managed services, and customizable hybrid cloud solutions for businesses and public organizations. | IT Services and IT Consulting | 馃嚝馃嚪 Le Haillan | 495 | 1998 |
| 8 | [QUADRIA](https://www.tamtam.ai/c/quadria) (heliaq.fr)
French-owned company focused on network and telecom architectures, infrastructure solutions, cloud computing, and management solutions for SMEs across France, Germany, and Switzerland. | IT Services and IT Consulting | 馃嚝馃嚪 Le Haillan | 495 | 1957 |
| 9 | [Notaires Office](https://www.tamtam.ai/c/notaires-office) (notaires-office.fr)
Cooperative network of notary offices across France, offering legal advice and services for life events like marriage, divorce, inheritance, and real estate, making law accessible. | Legal Services | 馃嚝馃嚪 Pessac | 459 | 2020 |
| 10 | [LUSEO](https://www.tamtam.ai/c/luseo) (luseogroup.com)
A multidisciplinary building design firm offering specialized engineering and project administration services for real estate development, owners, developers, contractors, and consulting firms | Engineering Services | 馃嚝馃嚪 Le Haillan | 423 | 2004 |
| 11 | [INORIX](https://www.tamtam.ai/c/inorix) (inorix.fr)
Private security services including human surveillance, executive protection, auditing, training, remote monitoring, and installation of electronic access control and video surveillance systems. | Security and Investigations | 馃嚝馃嚪 Bordeaux | 331 | 2018 |
| 12 | [CIS](https://www.tamtam.ai/c/cis-le-haillan) (cisclaims.com)
The company assists clients in defining IT system architecture, integrating infrastructure, and providing operational support to ensure smooth functioning | IT Services and IT Consulting | 馃嚝馃嚪 Le Haillan | 318 | 1986 |
| 13 | [EXTENCIA \| Cabinet d'expertise comptable](https://www.tamtam.ai/c/extencia-cabinet-d-expertise-comptable) (extencia.fr)
Independent accounting firm providing advisory, legal, tax, HR, and marketing support across specialized sectors like pharmacy, real estate, and construction for businesses. | Accounting | 馃嚝馃嚪 Bordeaux | 272 | |
| 14 | [GESTFORM](https://www.tamtam.ai/c/gestform) (gestform.com)
Specializing in high-volume digitization services, administrative functions outsourcing, reprography, and software solutions for over 30 years, this company offers expertise tailored to clients' projects | IT Services and IT Consulting | 馃嚝馃嚪 M茅rignac | 230 | 1986 |
| 15 | [SERMA Safety and Security](https://www.tamtam.ai/c/serma-safety-and-security) (serma-safety-security.com)
Provides expertise, evaluation, and consulting for product and system security and safety, covering cybersecurity, functional safety, and formal methods, for various industries. | Computer and Network Security | 馃嚝馃嚪 Pessac | 227 | 2016 |
| 16 | [GCL - l'innovation dans l'accompagnement des entreprises](https://www.tamtam.ai/c/gcl-l-innovation-dans-l-accompagnement-des-entreprises) (gclnet.fr)
National network providing accounting, audit, legal, payroll, and HR expertise to support SMEs throughout all business lifecycle stages. | Business Consulting and Services | 馃嚝馃嚪 Bordeaux | 227 | 1980 |
| 17 | [SERMA Technologies](https://www.tamtam.ai/c/serma-technologies) (serma-technologies.com)
Specialist in analysis, control, and expertise of electronic components, boards, and systems with extensive testing laboratory resources. | Business Consulting and Services | 馃嚝馃嚪 Pessac | 220 | 1991 |
| 18 | [ERECApluriel](https://www.tamtam.ai/c/erecapluriel) (erecapluriel.fr)
Regional group providing accounting, auditing, and consulting services with 21 offices in Southwest France 300 specialists offer expertise in various business areas | Accounting | 馃嚝馃嚪 Bordeaux | 194 | 1978 |
| 19 | [SECURITE PROTECTION](https://www.tamtam.ai/c/securite-protection) (securiteprotection.fr)
French independent group providing event security, corporate services, custom software, and human-technology integration with strong client trust. | Security and Investigations | 馃嚝馃嚪 Bordeaux | 174 | 1994 |
| 20 | [Alltech Consulting](https://www.tamtam.ai/c/alltech-consulting) (alltechconsulting.fr)
Growing organization with dynamic technical teams across multiple cities, focusing on employee growth, tailored development, and collaborative career building. | IT Services and IT Consulting | 馃嚝馃嚪 Bordeaux | 160 | 2015 |
| 21 | [Groupe ADR脡](https://www.tamtam.ai/c/groupe-adre) (adre-groupe.fr)
Reliable infrastructure projects, encompassing network detection, water leak repair, fiber optic engineering, and energy solutions like plumbing, HVAC, and sanitary installations. | Construction | 馃嚝馃嚪 M茅rignac | 154 | 2012 |
| 22 | [VALEMO](https://www.tamtam.ai/c/valemo) (valemo.fr)
Specializing in operating, maintaining, and monitoring renewable energy parks onshore and offshore, with a focus on maximizing asset performance through tailored services | Services for Renewable Energy | 馃嚝馃嚪 B猫gles | 148 | 2011 |
| 23 | [Applus+ Rescoll](https://www.tamtam.ai/c/applus-rescoll) (rescoll.fr)
Independent research company performing technical studies on innovative industrial applications of polymer materials, including resins, composites, adhesives, paints, varnishes, bonding, fire behavior, and surface treatments. | Business Consulting and Services | 馃嚝馃嚪 Pessac | 135 | 2001 |
| 24 | [Alphitan Group](https://www.tamtam.ai/c/alphitan-group) (alphitan.com)
Specialized companies providing sales, repair, and maintenance of industrial electric motors, electronic systems, and automation across multiple European sites. | Industrial Machinery Manufacturing | 馃嚝馃嚪 Bordeaux | 112 | 1982 |
| 25 | [Apave International Group](https://www.tamtam.ai/c/apave-international-group) (apave-international.com)
With 150 years of experience in France, Apave expanded globally in 2010 to provide reliable services through an Integrated Management System | International Trade & Development | 馃嚝馃嚪 Artigues-pr猫s-Bordeaux | 108 | 1867 |
| 26 | [Restauration H么tellerie Loisirs - Bordeaux-Aquitaine](https://www.tamtam.ai/c/restauration-hotellerie-loisirs-bordeaux-aquitaine)
The company offers specialized management services to independent hospitality and leisure organizations, focusing on improving results, developing activities, and optimizing performance | Business Consulting and Services | 馃嚝馃嚪 Bordeaux | 95 | 2014 |
| 27 | [4SH](https://www.tamtam.ai/c/4sh) (4sh.fr)
A digital services company specializing in custom software development, offering full project support from concept to implementation with a tech-focused culture | Software Development | 馃嚝馃嚪 Le Haillan | 91 | 2007 |
| 28 | [ASHLER & MANSON](https://www.tamtam.ai/c/ashler-and-manson) (ashler-manson.com)
French mortgage brokerage offering competitive loan rates, insurance solutions, financial advice, and investment services with extensive bank partnerships. | Financial Services | 馃嚝馃嚪 Bordeaux | 89 | 2003 |
| 29 | [SYS1](https://www.tamtam.ai/c/sys1) (sys1.fr)
SYS1 provides IT infrastructure services in Nouvelle Aquitaine and Occitanie/PACA regions, offering network solutions, server/storage integration, security expertise, and remote IT services | IT Services and IT Consulting | 馃嚝馃嚪 Saint-Jean-d'Illac | 85 | 1994 |
| 30 | [CBP](https://www.tamtam.ai/c/cbp-merignac) (cabinetcbp.com)
A firm in Merignac with 3 partners and 50 staff providing accounting expertise and auditing services to over 600 clients, mainly SMEs in Nouvelle Aquitaine | Accounting | 馃嚝馃嚪 M茅rignac | 69 | 1991 |
## 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 11, 2026.
## More company lists in the Gironde department
- [The largest companies in the Gironde department](https://www.tamtam.ai/l/largest-companies-gironde) (2,435)
- [Companies with in-house R&D in the Gironde department](https://www.tamtam.ai/l/r-and-d-companies-gironde) (225)
- [Retail chains in the Gironde department](https://www.tamtam.ai/l/retail-chains-gironde) (217)
- [Multinational companies in the Gironde department](https://www.tamtam.ai/l/multinational-companies-gironde) (200)
- [SaaS companies in the Gironde department](https://www.tamtam.ai/l/saas-companies-gironde) (141)
- [Manufacturers in the Gironde department](https://www.tamtam.ai/l/manufacturers-gironde) (137)
- [Software Development companies in the Gironde department](https://www.tamtam.ai/l/software-development-companies-gironde) (124)
- [Distributors and wholesalers in the Gironde department](https://www.tamtam.ai/l/distributors-and-wholesalers-gironde) (115)
- [Public sector organisations in the Gironde department](https://www.tamtam.ai/l/public-sector-organisations-gironde) (109)
- [IT Services and IT Consulting companies in the Gironde department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-gironde) (105)
- [Family-owned companies in the Gironde department](https://www.tamtam.ai/l/family-owned-companies-gironde) (104)
- [Hardware manufacturers in the Gironde department](https://www.tamtam.ai/l/hardware-companies-gironde) (100)
- [IT services companies in the Gironde department](https://www.tamtam.ai/l/it-services-companies-gironde) (99)
- [Consulting firms in the Gironde department](https://www.tamtam.ai/l/consulting-firms-gironde) (82)
- [Law Practice companies in the Gironde department](https://www.tamtam.ai/l/law-practice-companies-gironde) (81)
- [Education providers in the Gironde department](https://www.tamtam.ai/l/education-companies-gironde) (80)
- [Financial services firms in the Gironde department](https://www.tamtam.ai/l/financial-services-firms-gironde) (80)
- [Real Estate companies in the Gironde department](https://www.tamtam.ai/l/real-estate-companies-gironde) (79)
- [Business Consulting and Services companies in the Gironde department](https://www.tamtam.ai/l/business-consulting-and-services-companies-gironde) (77)
- [Retail companies in the Gironde department](https://www.tamtam.ai/l/retail-companies-gironde) (74)
- [Healthcare providers in the Gironde department](https://www.tamtam.ai/l/healthcare-providers-gironde) (71)
- [Construction companies in the Gironde department](https://www.tamtam.ai/l/construction-companies-gironde) (67)
- [Higher Education companies in the Gironde department](https://www.tamtam.ai/l/higher-education-companies-gironde) (67)
- [Advertising Services companies in the Gironde department](https://www.tamtam.ai/l/advertising-services-companies-gironde) (65)
## The same list elsewhere in France
- [Professional services firms in France](https://www.tamtam.ai/l/professional-services-firms-france) (6,611)
- [Professional services firms in 脦le-de-France](https://www.tamtam.ai/l/professional-services-firms-ile-de-france) (3,377)
- [Professional services firms in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/professional-services-firms-auvergne-rhone-alpes) (711)
- [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-C么te d'Azur](https://www.tamtam.ai/l/professional-services-firms-provence-alpes-cote-dazur) (433)
- [Professional services firms in the Rh么ne department](https://www.tamtam.ai/l/professional-services-firms-rhone) (400)
- [Professional services firms in Occitanie](https://www.tamtam.ai/l/professional-services-firms-occitanie) (399)
- [Professional services firms in Grand Est](https://www.tamtam.ai/l/professional-services-firms-grand-est) (316)
- [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) (254)
- [Professional services firms in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/professional-services-firms-bouches-du-rhone) (249)
- [Professional services firms in the Haute-Garonne department](https://www.tamtam.ai/l/professional-services-firms-haute-garonne) (208)
- [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)
- [Professional services firms in the Loire-Atlantique department](https://www.tamtam.ai/l/professional-services-firms-loire-atlantique) (158)
- [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 the Ille-et-Vilaine department](https://www.tamtam.ai/l/professional-services-firms-ille-et-vilaine) (94)
- [Professional services firms in Paris](https://www.tamtam.ai/l/professional-services-firms-paris) (2,241)
- [Professional services firms in Lyon](https://www.tamtam.ai/l/professional-services-firms-lyon) (265)
- [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)
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Source: https://www.tamtam.ai/l/professional-services-firms-gironde