# Top 30 professional services firms in the Isère department

Tamtam tracks 87 professional services firms headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by Tessi, HARDIS GROUP and VOUSFINANCER - Groupe ASSU 2000. Their median headcount is 94. Half of them were founded in 1991 or later. The most common headquarters are Grenoble (6), Meylan (4) and Montbonnot-Saint-Martin (4).

The Isère department hosts a diverse range of professional services firms, predominantly mid-sized and established companies. The information technology sector is particularly well-represented. For example, Tessi specializes in customer relations and document process management, while HARDIS GROUP provides IT consulting and logistics software. KAIZEN Solutions designs and develops customized software for complex technical systems. Other notable firms include VOUSFINANCER - Groupe ASSU 2000, which focuses on mortgage brokerage, and GENEL, an international biotech company offering expert services for dermo-cosmetic, nutraceutical, and pharmaceutical industries. Work 2000 is a staffing and recruiting firm with a national presence, and Automatique & Industrie delivers automated solutions for industrial and energy sectors.

🇫🇷 Isère · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Tessi](https://www.tamtam.ai/c/tessi) (tessi.eu)<br>Management of customer relations, payments, and document processes through digitalization and business process outsourcing solutions, ensuring information security for businesses. | IT Services and IT Consulting | 🇫🇷 Grenoble | 3,960 | 1971 |
| 2 | [HARDIS GROUP](https://www.tamtam.ai/c/hardis-group) (hardis-group.com)<br>consulting and IT services company, a Salesforce pure player, and vendor of the Reflex logistics software suite for retail and supply chain transformation. | IT Services and IT Consulting | 🇫🇷 Seyssinet-Pariset | 1,015 | 1984 |
| 3 | [VOUSFINANCER - Groupe ASSU 2000](https://www.tamtam.ai/c/vousfinancer-groupe-assu-2000) (vousfinancer.com)<br>Specializing in mortgage brokerage, we provide personalized guidance to individuals throughout the loan process, focusing on transparency and finding the best financing solution | Financial Services | 🇫🇷 Saint-Martin-le-Vinoux | 329 |  |
| 4 | [GENEL](https://www.tamtam.ai/c/genel) (genel.fr)<br>An international biotech company provides expert services for Dermo-Cosmetic, Nutraceutique, and Pharmaceutical companies through innovative strategies and cutting-edge technologies | Biotechnology Research | 🇫🇷 Meylan | 305 | 2014 |
| 5 | [KAIZEN Solutions (KZS)](https://www.tamtam.ai/c/kaizen-solutions-kzs) (kaizen-solutions.net)<br>Designs, develops, and maintains customized software solutions for complex and critical technical and industrial systems, from sensor to cloud. | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 281 | 2013 |
| 6 | [WORK 2000](https://www.tamtam.ai/c/work-2000) (recrutement.work2000.fr)<br>Established in 1991, this company offers staffing solutions across France with 42 agencies and over 5,000 temporary workers They focus on familial management | Staffing and Recruiting | 🇫🇷 Meylan | 247 | 1991 |
| 7 | [Automatique & Industrie](https://www.tamtam.ai/c/automatique-and-industrie) (automatique-industrie.com)<br>Provides automated solutions including SCADA, smart data, AI, energy monitoring, consulting, training, and maintenance for industrial and energy sectors. | Automation Machinery Manufacturing | 🇫🇷 Saint-Jean-de-Moirans | 174 | 1995 |
| 8 | [AMEG GROUP Ingénierie Industrielle](https://www.tamtam.ai/c/ameg-group-ingenierie-industrielle) (ameg-group.fr)<br>Offers industrial engineering consulting and technical assistance. Expertise in process, mechanical, electrical, and information system engineering across diverse industries. | Mechanical Or Industrial Engineering | 🇫🇷 Meylan | 157 | 1981 |
| 9 | [STEP UP](https://www.tamtam.ai/c/step-up) (stepup-conseil.com)<br>Matching hard and soft skills of consultants with technical project requirements, providing on-site assistance, study platforms, service centers, and fixed-price services. | IT Services and IT Consulting | 🇫🇷 Eybens | 150 | 2014 |
| 10 | [Europe Qualité](https://www.tamtam.ai/c/europe-qualite) (europequalite.eu)<br>A leading provider of metrology and calibration services in France, ensuring quality production through accredited services in 9 labs across the country | Business Consulting and Services | 🇫🇷 Villefontaine | 124 | 1989 |
| 11 | [BETREC IG](https://www.tamtam.ai/c/betrec-ig) (betrec.com)<br>Multidisciplinary engineering firm specializing in building and infrastructure project design, collaborating with owners and architects since 1965. | Engineering Services | 🇫🇷 Grenoble | 121 | 1965 |
| 12 | [Compagnie Fiduciaire Grésivaudan](https://www.tamtam.ai/c/compagnie-fiduciaire-gresivaudan) (fiduciaire-gresivaudan.com)<br>Provides accounting, auditing, tax, legal, social, and IT consulting services through multiple offices, focusing on client proximity and satisfaction. | Accounting | 🇫🇷 Pontcharra | 100 | 1976 |
| 13 | [AIRRIA](https://www.tamtam.ai/c/airria) (airria.com)<br>Provides IT, IoT, and personnel placement services, offering tailored solutions from consultation, installation to maintenance for various clients in France and Europe. | Business Consulting and Services | 🇫🇷 Meylan | 98 | 2005 |
| 14 | [Enerdata](https://www.tamtam.ai/c/enerdata) (enerdata.net)<br>An independent research company specializing in energy and climate analysis, offering forecasting, business intelligence, and policy assistance to clients worldwide | Business Consulting and Services | 🇫🇷 Grenoble | 95 | 1991 |
| 15 | [GSF ORION SUD](https://www.tamtam.ai/c/gsf-orion-sud) (gsf.fr)<br>A subsidiary specializing in hygiene and cleanliness services with a focus on human values, professionalism, and international presence | Facilities Services | 🇫🇷 Vaulx-Milieu | 94 | 1963 |
| 16 | [AXE INFORMATIQUE](https://www.tamtam.ai/c/axe-informatique) (axeinfo.fr)<br>A company specializing in implementing management software for SMEs, providing IT maintenance services, and deploying infrastructure solutions for 1500 clients | Software Development | 🇫🇷 Grenoble | 93 | 1989 |
| 17 | [Probayes](https://www.tamtam.ai/c/probayes) (probayes.com)<br>AI expert specializing in Machine Learning, Operational Research, Computer Vision, and NLP Custom AI solutions for various industries Immersive collaboration with clients for tailored solutions | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 93 | 2003 |
| 18 | [systhen](https://www.tamtam.ai/c/systhen) (systhen.com)<br>Provider of document capture and processing solutions, offering scanners, consulting, implementation, maintenance, and support for digital transformation. | IT Services and IT Consulting | 🇫🇷 Saint-Quentin-Fallavier | 88 | 1997 |
| 19 | [Ascanio](https://www.tamtam.ai/c/ascanio) (ascan.io)<br>Development and creation of innovative web products focused on delivering unique digital solutions and enhancing online user experiences. | Technology, Information and Internet | 🇫🇷 Montbonnot-Saint-Martin | 85 | 2004 |
| 20 | [EOLYA](https://www.tamtam.ai/c/eolya) (eolya.com)<br>Provides energy and environmental efficiency services with guaranteed results for public, commercial, residential, and industrial clients in Auvergne-Rhône-Alpes region. | Facilities Services | 🇫🇷 Saint-Martin-le-Vinoux | 63 | 2000 |
| 21 | [Groupe Havana](https://www.tamtam.ai/c/groupe-havana) (havana-it.com)<br>Provides IT consulting services focusing on data, cloud, and AI to accelerate clients' digital transformation with innovation and expertise. | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 53 | 2012 |
| 22 | [Auphys Technologie](https://www.tamtam.ai/c/auphys-technologie) (auphys.com)<br>Engineering services company specializing in energy networks, industrial design, audits, and training, supporting projects globally from Rhône-Alpes base. | Engineering Services | 🇫🇷 Seyssinet-Pariset | 49 | 2000 |
| 23 | [CERG](https://www.tamtam.ai/c/cerg) (cerg-fluides.com)<br>Multidisciplinary teams conducting comprehensive fluid mechanics research and testing, covering hydrodynamics, aerodynamics, hydraulics, cavitation, and flow-induced vibrations. | Research Services | 🇫🇷 Le Pont-de-Claix | 45 | 1962 |
| 24 | [ACRITEC](https://www.tamtam.ai/c/acritec) (acritec.fr)<br>A company specializing in technical control services for SMEs, industries, and communities, offering inspections and training in various areas such as electricity and safety equipment | Business Consulting and Services | 🇫🇷 Moirans | 41 | 2006 |
| 25 | [BOAS](https://www.tamtam.ai/c/boas) (boas-services.fr)<br>A bureau of studies specializing in monitoring and controlling construction projects, including buildings and infrastructure, with a skilled team serving clients nationwide | Civil Engineering | 🇫🇷 Heyrieux | 40 | 1989 |
| 26 | [Sogilis, Level Up together !](https://www.tamtam.ai/c/sogilis-level-up-together) (sogilis.com)<br>Sogilis is an innovation booster helping companies strengthen their market presence through technology, creating cutting-edge solutions and turning crazy ideas into reality | Software Development | 🇫🇷 Grenoble | 39 | 2008 |
| 27 | [Neovision](https://www.tamtam.ai/c/neovision-grenoble) (neovision.fr)<br>An AI expertise company making artificial intelligence accessible through tailored solutions and personalized support for all customers | IT Services and IT Consulting | 🇫🇷 Grenoble | 39 | 2014 |
| 28 | [Nsigma Junior-Entreprise](https://www.tamtam.ai/c/nsigma-junior-entreprise) (nsigma.fr)<br>Nsigma is a technology-driven Junior-Enterprise specializing in IT solutions, data science, artificial intelligence, web development, and applied mathematics services | IT Services and IT Consulting | 🇫🇷 Saint-Martin-d'Hères | 38 | 1980 |
| 29 | [SINEQUANON'​](https://www.tamtam.ai/c/sinequanon) (sinequanon4.fr)<br>Engineering firm providing construction site management services such as OPC monitoring, SPS coordination, VRD & landscape studies, and asbestos project management | Construction | 🇫🇷 Échirolles | 33 | 1967 |
| 30 | [CIBC Isère Savoie](https://www.tamtam.ai/c/cibc-isere-savoie) (cibc-auvergne-rhone-alpes.fr)<br>The company offers HR consulting services, recruitment, skills assessment, career transition support, and mobility solutions to help individuals and organizations thrive in a rapidly evolving work environment | Human Resources Services | 🇫🇷 Échirolles | 32 | 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 11, 2026.

## More company lists in the Isère department

- [The largest companies in the Isère department](https://www.tamtam.ai/l/largest-companies-isere) (1,457)
- [Companies with in-house R&D in the Isère department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304)
- [Manufacturers in the Isère department](https://www.tamtam.ai/l/manufacturers-isere) (178)
- [Multinational companies in the Isère department](https://www.tamtam.ai/l/multinational-companies-isere) (174)
- [Hardware manufacturers in the Isère department](https://www.tamtam.ai/l/hardware-companies-isere) (143)
- [Retail chains in the Isère department](https://www.tamtam.ai/l/retail-chains-isere) (100)
- [Software Development companies in the Isère department](https://www.tamtam.ai/l/software-development-companies-isere) (90)
- [Public sector organisations in the Isère department](https://www.tamtam.ai/l/public-sector-organisations-isere) (80)
- [Distributors and wholesalers in the Isère department](https://www.tamtam.ai/l/distributors-and-wholesalers-isere) (78)
- [IT services companies in the Isère department](https://www.tamtam.ai/l/it-services-companies-isere) (75)
- [SaaS companies in the Isère department](https://www.tamtam.ai/l/saas-companies-isere) (72)
- [Electronics and semiconductor companies in the Isère department](https://www.tamtam.ai/l/electronics-companies-isere) (70)
- [Contract manufacturers in the Isère department](https://www.tamtam.ai/l/contract-manufacturers-isere) (68)
- [IT Services and IT Consulting companies in the Isère department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-isere) (68)
- [Family-owned companies in the Isère department](https://www.tamtam.ai/l/family-owned-companies-isere) (61)
- [Industrial Machinery Manufacturing companies in the Isère department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-isere) (58)
- [Consulting firms in the Isère department](https://www.tamtam.ai/l/consulting-firms-isere) (57)
- [Construction companies in the Isère department](https://www.tamtam.ai/l/construction-companies-isere) (52)
- [Pharmaceutical companies in the Isère department](https://www.tamtam.ai/l/pharmaceutical-companies-isere) (47)
- [Education providers in the Isère department](https://www.tamtam.ai/l/education-companies-isere) (46)
- [Medical device companies in the Isère department](https://www.tamtam.ai/l/medical-device-companies-isere) (43)
- [Critical infrastructure operators in the Isère department](https://www.tamtam.ai/l/critical-infrastructure-operators-isere) (41)
- [Energy companies in the Isère department](https://www.tamtam.ai/l/energy-companies-isere) (41)
- [Chemical companies in the Isère department](https://www.tamtam.ai/l/chemical-companies-isere) (40)

## 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-isere