# Top 29 professional services firms in the Loire department

Tamtam tracks 29 professional services firms headquartered in the Loire department. This list ranks all of them by number of employees on LinkedIn, led by HEF Groupe, Sudeco Property Management and VALUE IT. Their median headcount is 11. Half of them were founded in 2010 or later. The most common headquarters are Saint-Étienne (17), Roanne (3) and Andrézieux-Bouthéon (2).

The professional services companies in the Loire department are primarily mid-sized firms, with a notable presence in IT services and consulting, construction, and legal practices. HEF Groupe, founded in 1953, stands out as a global leader in surface materials engineering, while Sudeco Property Management specializes in retail asset management. VALUE IT provides IT and telecom solutions, and CJA Avocats focuses on business law.

Many of these firms are headquartered in Saint-Étienne, indicating a concentration of professional services in the city. For example, DSI - Diagnostic Structure et Ingénierie specializes in structural diagnostics, and EFFITEL conducts market research and surveys. The founding dates show a mix of established companies and those founded in the 2000s and 2010s.

🇫🇷 Loire · 29 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [HEF Groupe](https://www.tamtam.ai/c/hef-groupe) (hef.group)<br>A global leader in surface materials engineering with a focus on tribology and photonics, driving innovation in various sectors worldwide | Engineering Services | 🇫🇷 Andrézieux-Bouthéon | 484 | 1953 |
| 2 | [Sudeco Property Management](https://www.tamtam.ai/c/sudeco-property-management) (ca-immobilier.fr)<br>Expertise in retail asset management, offering comprehensive real estate services for commercial and logistics properties with strong territorial network. | Leasing Non-residential Real Estate | 🇫🇷 Saint-Étienne | 83 |  |
| 3 | [VALUE IT](https://www.tamtam.ai/c/value-it) (value-info.fr)<br>Supplier and integrator of IT and telecom solutions supporting SMEs with infrastructure, security, cloud, managed services, and collaboration. | IT Services and IT Consulting | 🇫🇷 Saint-Étienne | 71 | 2016 |
| 4 | [Ynov'iT Groupe](https://www.tamtam.ai/c/ynov-it-groupe) (ynit.fr)<br>The company supports clients in implementing best printing and document management practices within their organizations on a daily basis | IT Services and IT Consulting | 🇫🇷 Saint-Étienne | 51 |  |
| 5 | [Adage - Géomètres-Experts](https://www.tamtam.ai/c/adage-geometres-experts) (adage.pro)<br>A team of 44 professionals, including 3 land surveyors, providing expertise in Auvergne Rhône Alpes and Bourgogne regions for various surveying missions | Construction | 🇫🇷 Roanne | 38 | 1974 |
| 6 | [CJA Avocats](https://www.tamtam.ai/c/cja-avocats) (cja.fr)<br>A leading independent law firm specializing in Business Law, with expertise in Corporate Law, Mergers & Acquisitions, Tax Law, and more Partnered with LEXTEAM network | Law Practice | 🇫🇷 Saint-Étienne | 33 | 1988 |
| 7 | [DSI - Diagnostic Structure et Ingénierie](https://www.tamtam.ai/c/dsi-diagnostic-structure-et-ingenierie) (dsi-bet.fr)<br>Specialized in structural diagnostics of concrete, metal, and wood structures for building and civil engineering projects, assisting stakeholders in rehabilitation and maintenance | Construction | 🇫🇷 Saint-Étienne | 29 | 2014 |
| 8 | [EFFITEL](https://www.tamtam.ai/c/effitel) (institut-ensome.com)<br>Specialists in study and survey consulting, conducting surveys through various methods, and providing statistical analysis of study and survey data | Market Research | 🇫🇷 Saint-Étienne | 28 | 2002 |
| 9 | [FlexyCall](https://www.tamtam.ai/c/flexycall) (flexycall.fr)<br>The company specializes in optimizing customer relations for businesses of all sizes through a highly efficient multi-channel contact center They also offer insurance brokerage services | Telephone Call Centers | 🇫🇷 Sorbiers | 22 | 2010 |
| 10 | [BOST Diagnostics Structures](https://www.tamtam.ai/c/bost-diagnostics-structures) (bost-bds.com)<br>Specialized structural engineering firm offering building assessments, capacity calculations, material testing, and maintenance recommendations to support clients in project development | Construction | 🇫🇷 La Talaudière | 21 | 2012 |
| 11 | [Koëhl Assurances et Gestion de Patrimoine](https://www.tamtam.ai/c/koehl-assurances-et-gestion-de-patrimoine) (koehl-assurances.fr)<br>Established in 1976, this insurance brokerage firm in France focuses on protecting businesses and personal assets, specializing in servicing SMEs in the Rhône-Alps region | Insurance | 🇫🇷 Saint-Étienne | 21 | 1976 |
| 12 | [GBA Energies](https://www.tamtam.ai/c/gba-energies) (gba-energies.com)<br>Expertise in fluid and technical systems, offering project management assistance, design optimization, and construction oversight, integrating economic and planning expertise. | Construction | 🇫🇷 Saint-Étienne | 16 | 2009 |
| 13 | [Cabinet FICHEUX-NEANT](https://www.tamtam.ai/c/cabinet-ficheux-neant) (cabinet-ficheux-neant.fr)<br>Legal firm providing expertise in commercial, business, competition, and corporate law Offers tailored advice, representation, and assistance nationwide and overseas | Law Practice | 🇫🇷 Saint-Étienne | 16 |  |
| 14 | [Batna Consulting](https://www.tamtam.ai/c/batna-consulting) (batna.fr)<br>Specializing in innovative customer relationship management and business performance solutions, with expertise in integrating web, Oracle, and Microsoft solutions | IT Services and IT Consulting | 🇫🇷 Rive-de-Gier | 12 | 2006 |
| 15 | [METHEOR](https://www.tamtam.ai/c/metheor) (metheor.fr)<br>METH&OR is a construction engineering consulting firm specializing in methods, organization, and site management for building and civil engineering projects They offer technical solutions and training | Construction | 🇫🇷 Saint-Étienne | 11 | 2010 |
| 16 | [CERCLH](https://www.tamtam.ai/c/cerclh) (cerclh.com)<br>A management consultancy specializing in healthcare institutions in France, Switzerland, and Belgium, offering services in strategy, digital solutions, benchmarking, and training | Hospitals and Health Care | 🇫🇷 Roanne | 11 | 2007 |
| 17 | [AF Events](https://www.tamtam.ai/c/af-events) (af.events)<br>Event planning company based in Saint-Etienne, specializing in organizing various events and gatherings | Events Services | 🇫🇷 Saint-Étienne | 11 | 2018 |
| 18 | [PREVH GROUP](https://www.tamtam.ai/c/prevh-group) (prevh-group.fr)<br>Located in Andrézieux-Bouthéon, PrevH-Group provides mandatory health and safety training, with three entities offering complementary services in training and administration | Technical and Vocational Training | 🇫🇷 Andrézieux-Bouthéon | 11 | 2010 |
| 19 | [Aneol](https://www.tamtam.ai/c/aneol) (aneol.com)<br>Digital partner specializing in IT strategies, offering services such as digital performance audits, SI optimization, web development, data visualization, and cloud strategy implementation | IT Services and IT Consulting | 🇫🇷 Saint-Étienne | 10 | 2008 |
| 20 | [Paralex](https://www.tamtam.ai/c/paralex) (avocats-paralex.fr)<br>PARALEX Avocats is a versatile law firm providing legal services in France, specializing in various areas of law such as public, family, social, responsibility, and driving permits | Law Practice | 🇫🇷 Saint-Étienne | 8 |  |
| 21 | [ANTHEIA CONSEIL](https://www.tamtam.ai/c/antheia-conseil) (antheia.fr)<br>ANTHEIA CONSEIL provides assistance to businesses and employers in labor relations, social security law, and training, with a focus on prevention and conflict resolution | Law Practice | 🇫🇷 Saint-Étienne | 7 | 2015 |
| 22 | [ENVIRONNEMENT DROIT PUBLIC](https://www.tamtam.ai/c/environnement-droit-public)<br>A law firm specializing in environmental and public law, serving clients in real estate, public procurement, and human resources for responsible project management | Law Practice | 🇫🇷 Saint-Étienne | 6 | 2002 |
| 23 | [Exaltan RH](https://www.tamtam.ai/c/exaltan-rh) (pattersonsoft.com)<br>A specialized recruitment firm offering tailored solutions to find top talent in various industries, aiming to be your long-term recruitment partner | Staffing and Recruiting | 🇫🇷 Saint-Priest-en-Jarez | 6 | 2019 |
| 24 | [iQuandA](https://www.tamtam.ai/c/iquanda) (iquanda.com)<br>Helps businesses build strong and collaborative relationships with their customers, turning them into valuable strategic partners | Business Consulting and Services | 🇫🇷 Saint-Étienne | 5 | 2020 |
| 25 | [CB COMPTABILITE - Eric Delolme expert-comptable](https://www.tamtam.ai/c/cb-comptabilite-eric-delolme-expert-comptable) (cb-comptabilite.fr)<br>A firm providing accounting expertise and services to various businesses, with a personalized approach and a focus on client satisfaction and support | Accounting | 🇫🇷 Firminy | 3 | 1993 |
| 26 | [CIDER Engineering - Déconstruire pour demain](https://www.tamtam.ai/c/cider-engineering-deconstruire-pour-demain) (ciderengineering.com)<br>Engineering center specializing in technical studies, strategic deconstruction, hazardous substance mapping, and recycling of complex heavy equipment materials. | Engineering Services | 🇫🇷 Roanne | 3 | 2011 |
| 27 | [DIVISION 70](https://www.tamtam.ai/c/division-70) (division70.com)<br>A management consulting company located in Saint Etienne, France, providing services in Division 70 | Business Consulting and Services | 🇫🇷 Saint-Étienne | 3 | 2017 |
| 28 | [EDRATEC SOLUTIONS](https://www.tamtam.ai/c/edratec-solutions) (edratecsolutions.com)<br>Specializing in custom-made fireproof, thermal and acoustic insulation solutions for industries and construction Provides consulting services on high-value materials and processes | Industrial Machinery Manufacturing | 🇫🇷 Le Chambon-Feugerolles | 2 | 2012 |
| 29 | [Activision-Conseil](https://www.tamtam.ai/c/activision-conseil) (activision-conseil.com)<br>A training and consulting organization in the Auvergne Rhône Alpes region, specializing in improving skills in quality, project management, and procurement | Business Consulting and Services | 🇫🇷 Pouilly-les-Nonains | 1 | 2012 |

## 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 Loire department

- [The largest companies in the Loire department](https://www.tamtam.ai/l/largest-companies-loire) (632)
- [Manufacturers in the Loire department](https://www.tamtam.ai/l/manufacturers-loire) (122)
- [Companies with in-house R&D in the Loire department](https://www.tamtam.ai/l/r-and-d-companies-loire) (101)
- [Hardware manufacturers in the Loire department](https://www.tamtam.ai/l/hardware-companies-loire) (71)
- [Multinational companies in the Loire department](https://www.tamtam.ai/l/multinational-companies-loire) (66)
- [Contract manufacturers in the Loire department](https://www.tamtam.ai/l/contract-manufacturers-loire) (49)
- [Retail chains in the Loire department](https://www.tamtam.ai/l/retail-chains-loire) (49)
- [Family-owned companies in the Loire department](https://www.tamtam.ai/l/family-owned-companies-loire) (43)
- [Industrial Machinery Manufacturing companies in the Loire department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-loire) (39)
- [Public sector organisations in the Loire department](https://www.tamtam.ai/l/public-sector-organisations-loire) (39)
- [Distributors and wholesalers in the Loire department](https://www.tamtam.ai/l/distributors-and-wholesalers-loire) (31)
- [Aerospace and defence companies in the Loire department](https://www.tamtam.ai/l/aerospace-and-defense-companies-loire) (26)
- [Food and Beverage Manufacturing companies in the Loire department](https://www.tamtam.ai/l/food-and-beverage-manufacturing-companies-loire) (25)

## 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 Île-de-France](https://www.tamtam.ai/l/professional-services-firms-ile-de-france) (3,377)
- [Professional services firms in Auvergne-Rhône-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-Côte d'Azur](https://www.tamtam.ai/l/professional-services-firms-provence-alpes-cote-dazur) (433)
- [Professional services firms in the Rhône 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-Rhône 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 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) (2,241)
- [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-loire