# 30 leading IT Services and IT Consulting companies in the Isère department

Tamtam tracks 68 IT Services and IT Consulting companies headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by Tessi, HARDIS GROUP and KAIZEN Solutions (KZS). Their median headcount is 46. Half of them were founded in 2003 or later. The most common headquarters are Grenoble (8), Montbonnot-Saint-Martin (7) and Meylan (2).

The IT Services and IT Consulting sector in Isère is represented by a mix of established firms and younger companies. Tessi, founded in 1971, focuses on customer relations, payments, and document processes. HARDIS GROUP, established in 1984, provides consulting, IT services, and the Reflex logistics software. KAIZEN Solutions, founded in 2013, designs customized software for technical and industrial systems. Probayes, from 2003, specializes in AI solutions including Machine Learning and Computer Vision.

A notable pattern among these companies is a concentration of headquarters in specific towns within Isère. Montbonnot-Saint-Martin hosts several firms, including KAIZEN Solutions, Probayes, Horizon Groupe, Groupe Havana, and EDT - Electronic Data Transfer. Grenoble is another key hub, home to Tessi and NEXUS/FRANCE. Many of these companies offer specialized digital transformation and data solutions.

🇫🇷 Isère · 30 companies · Updated Nov 12, 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 | [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 |
| 4 | [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 |
| 5 | [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 |
| 6 | [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 |
| 7 | [TickS](https://www.tamtam.ai/c/ticks) (ticks.fr)<br>TICKS offers comprehensive solutions for public transportation authorities, including hosting, administration, maintenance, data analysis, user support, revenue management, and more | IT Services and IT Consulting | 🇫🇷 Meylan | 87 | 2004 |
| 8 | [Sincrone IT](https://www.tamtam.ai/c/sincrone-it) (sincrone-it.fr)<br>Expert technical services for digital transformation, specializing in unified communications, network infrastructure, and cybersecurity solutions for small to medium-sized business enterprises. | IT Services and IT Consulting | 🇫🇷 Échirolles | 73 |  |
| 9 | [NEXUS/FRANCE](https://www.tamtam.ai/c/nexus-france) (nexus-france.fr)<br>Development of innovative digital software solutions for healthcare professionals and institutions to improve patient care and operational efficiency. | IT Services and IT Consulting | 🇫🇷 Grenoble | 68 | 1988 |
| 10 | [Horizon Groupe \[Microstore, Iso Rhône-Alpes & Chryséis\]](https://www.tamtam.ai/c/horizon-groupe-microstore-iso-rhone-alpes-and-chryseis) (horizongroupe.fr)<br>Horizon groupe specializes in engineering and IT systems, offering customized virtual architectures, IT services, sourcing, and cloud computing solutions for businesses and local authorities | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 68 | 1984 |
| 11 | [Hardis Tech Services](https://www.tamtam.ai/c/hardis-tech-services) (hardis-tech-services.com)<br>Consulting and IT services company specializing in digital transformation, data, AI, cybersecurity, cloud, and sustainable digital practices for industries. | IT Services and IT Consulting | 🇫🇷 Seyssinet-Pariset | 58 | 1984 |
| 12 | [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 |
| 13 | [EDT - Electronic Data Transfer](https://www.tamtam.ai/c/edt-electronic-data-transfer) (group-edt.fr)<br>Providing a comprehensive electronic communication platform and service delivery for businesses across Europe in on-premise, cloud, or hybrid environments. | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 51 | 1989 |
| 14 | [ACOBA](https://www.tamtam.ai/c/acoba) (acoba.com)<br>High tech company specializing in video surveillance systems, hosted video content analysis technology, and CCTV cloud services, offering innovative solutions for security needs | IT Services and IT Consulting | 🇫🇷 Saint-Honoré | 49 | 2012 |
| 15 | [My Digital Buildings](https://www.tamtam.ai/c/my-digital-buildings) (mydigitalbuildings.com)<br>My Digital Buildings specializes in creating and managing digital replicas of buildings through a network of 3D scanning operators and a software platform | IT Services and IT Consulting | 🇫🇷 Meylan | 46 | 2019 |
| 16 | [DOMORG SAS](https://www.tamtam.ai/c/domorg-sas) (domorg.com)<br>Specializing in transformation projects, business audits, and company integrations for IT manufacturers, service providers, cybersecurity firms, and more in SMEs to large enterprises | IT Services and IT Consulting | 🇫🇷 Villemoirieu | 44 | 2006 |
| 17 | [ECRIN Systems](https://www.tamtam.ai/c/ecrin-systems) (ecrin.com)<br>A French SME specializing in industrial computing & embedded electronics, offering custom solutions, hardware platforms, integration services, and value-added distribution | IT Services and IT Consulting | 🇫🇷 Crolles | 43 | 1984 |
| 18 | [e-GEE](https://www.tamtam.ai/c/e-gee) (egee.fr)<br>Specializes in customer management solutions for water, sanitation, and waste sectors, serving over six million subscribers with adaptable software. | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 43 |  |
| 19 | [VEODIS GROUP](https://www.tamtam.ai/c/veodis-group) (veodisgroup.fr)<br>VEODIS GROUP offers a range of services and solutions to its clients | IT Services and IT Consulting | 🇫🇷 Échirolles | 41 | 1996 |
| 20 | [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 |
| 21 | [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 |
| 22 | [Med'Art](https://www.tamtam.ai/c/med-art) (med-art.fr)<br>Custom software development for healthcare, social services, and public sector Accelerating recruitment, supporting business transformation, and ensuring project success Making your vision a reality | IT Services and IT Consulting | 🇫🇷 Grenoble | 35 | 2006 |
| 23 | [COM6](https://www.tamtam.ai/c/com6) (com6.fr)<br>The company provides comprehensive IT services including technical engineering, project management, cabling, development, training, and commercial support with a focus on client proximity and service quality | IT Services and IT Consulting | 🇫🇷 Seyssinet-Pariset | 29 | 1989 |
| 24 | [Winsoft International](https://www.tamtam.ai/c/winsoft-international) (winsoft-international.com)<br>Exclusive Claris representative driving digital transformation and workplace innovation across Central & Eastern Europe, Middle East, South Asia, and Africa. | IT Services and IT Consulting | 🇫🇷 Grenoble | 28 | 1985 |
| 25 | [Neptune Internet Services](https://www.tamtam.ai/c/neptune-internet-services) (neptune.fr)<br>A leading provider of Wifi and Web solutions for professionals in the Auvergne Rhône-Alpes and PACA regions, serving over 500 businesses and communities for over 25 years | IT Services and IT Consulting | 🇫🇷 Grenoble | 27 | 1995 |
| 26 | [Folder \[Groupe plenITude\]](https://www.tamtam.ai/c/folder-groupe-plenitude) (plenitude-group.com)<br>With over 15 years of experience, our experts provide tailored IT solutions, from analysis and audit to ongoing system support and technical integration services | IT Services and IT Consulting | 🇫🇷 Saint-Jean-de-Moirans | 27 | 2005 |
| 27 | [La Chouette Co](https://www.tamtam.ai/c/la-chouette-co) (lachouette.company)<br>Engineering company specializing in custom software development, web, C++/IoT, DevSecOps, and cloud services with global presence. | IT Services and IT Consulting | 🇫🇷 Grenoble | 26 |  |
| 28 | [eBikeLabs, creators of eBikeOS](https://www.tamtam.ai/c/ebikelabs-creators-of-ebikeos) (ebikelabs.com)<br>The company helps designers create reliable and enjoyable e-bikes They develop AI software for theft detection, diagnostics, and personalized ride experiences | IT Services and IT Consulting | 🇫🇷 Grenoble | 26 | 2015 |
| 29 | [TKM - TecKnowMetrix](https://www.tamtam.ai/c/tkm-tecknowmetrix) (tkminnovation.io)<br>Consultancy providing market studies, application research, and big data analysis through specialized software to support strategic research and development decision making processes. | IT Services and IT Consulting | 🇫🇷 Voiron | 26 | 2004 |
| 30 | [DataChain® By Adobis Group](https://www.tamtam.ai/c/datachain-by-adobis-group) (adobisgroup.com)<br>Collect, organize, clean, normalize, analyze, and visually represent multi-source data securely using efficient open-source technologies with AI integration. | IT Services and IT Consulting | 🇫🇷 Montbonnot-Saint-Martin | 21 | 2014 |

## 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 12, 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)
- [Professional services firms in the Isère department](https://www.tamtam.ai/l/professional-services-firms-isere) (87)
- [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)
- [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

- [IT Services and IT Consulting companies in France](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-france) (4,943)
- [IT Services and IT Consulting companies in Île-de-France](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-ile-de-france) (2,776)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [IT Services and IT Consulting companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-auvergne-rhone-alpes) (455)
- [IT Services and IT Consulting companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-provence-alpes-cote-dazur) (261)
- [IT Services and IT Consulting companies in Occitanie](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-occitanie) (259)
- [IT Services and IT Consulting companies in the Rhône department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-rhone) (253)
- [IT Services and IT Consulting companies in Hauts-de-France](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-france) (226)
- [IT Services and IT Consulting companies in Grand Est](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-grand-est) (213)
- [IT Services and IT Consulting companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-nouvelle-aquitaine) (190)
- [IT Services and IT Consulting companies in the Nord department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-nord) (169)
- [IT Services and IT Consulting companies in Pays de la Loire](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-pays-de-la-loire) (167)
- [IT Services and IT Consulting companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-bouches-du-rhone) (154)
- [IT Services and IT Consulting companies in the Haute-Garonne department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-haute-garonne) (152)
- [IT Services and IT Consulting companies in the Yvelines department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-yvelines) (118)
- [IT Services and IT Consulting companies in the Val-de-Marne department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-val-de-marne) (113)
- [IT Services and IT Consulting companies in the Loire-Atlantique department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-loire-atlantique) (110)
- [IT Services and IT Consulting companies in the Gironde department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-gironde) (105)
- [IT Services and IT Consulting companies in Brittany](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-brittany) (101)
- [IT Services and IT Consulting companies in Paris](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-paris) (1,547)
- [IT Services and IT Consulting companies in Lyon](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-lyon) (160)
- [IT Services and IT Consulting companies in Boulogne-Billancourt](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-boulogne-billancourt) (105)
- [IT Services and IT Consulting companies in Toulouse](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-toulouse) (103)
- [IT Services and IT Consulting companies in Levallois-Perret](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-levallois-perret) (81)

## The same list elsewhere

- [IT Services and IT Consulting companies in the world](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-the-world) (23,571)
- [IT Services and IT Consulting companies in Europe](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-europe) (11,705)

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Source: https://www.tamtam.ai/l/it-services-and-it-consulting-companies-isere