# List of IT services companies in Rennes
Tamtam tracks 26 IT services companies headquartered in Rennes. This list ranks all of them by number of employees on LinkedIn, led by SIB [num茅rique, sant茅 et secteur public], RBI and Groupe Creative. Their median headcount is 34. Half of them were founded in 2011 or later.
The companies listed in Rennes are primarily IT services and consulting firms, ranging from mid-sized companies to younger firms. SIB, with 499 employees, focuses on digital health and public sector IT. RBI specializes in information systems design and integration, while Groupe Creative works on IT and digital transformation projects. 6TM supports clients with web, mobile, and software solutions, and CYIM provides IT and audiovisual services for medical societies. UNIXO offers IT solutions for SMEs and local authorities.
A common pattern among these companies is their focus on digital solutions and IT infrastructure. The majority of the firms listed are headquartered in Rennes, indicating a local concentration of expertise in IT services.
馃嚝馃嚪 Rennes 路 26 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [SIB \[num茅rique, sant茅 et secteur public\]](https://www.tamtam.ai/c/sib-numerique-sante-et-secteur-public) (sib.fr)
Innovative cooperative in digital health and public sector, serving 620+ institutions in modernizing their IT systems with a wide range of services and expertise | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 499 | 1993 |
| 2 | [RBI](https://www.tamtam.ai/c/rbi-rennes) (rbi-informatique.fr)
Specializing in information systems design, implementation, and integration, RBI-Informatique offers services in infrastructure, collaboration, and management solutions for businesses | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 468 | 1981 |
| 3 | [Groupe Creative](https://www.tamtam.ai/c/groupe-creative) (groupe-creative.fr)
Works with clients on IT and digital transformation projects, offering expertise in consulting, creation, development, research, and innovation across various digital domains. | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 232 | 2008 |
| 4 | [TALENDI](https://www.tamtam.ai/c/talendi) (talendi.com)
A social enterprise offering industrial and digital services, employing over 550 people, including 420 with disabilities, with expertise in various fields like assembly and logistics | Motor Vehicle Parts Manufacturing | 馃嚝馃嚪 Rennes | 137 | 1975 |
| 5 | [6TM](https://www.tamtam.ai/c/6tm) (6tm.com)
6TM supports clients in achieving effective communication through web, mobile, and software solutions, with services ranging from e-commerce to custom development and e-tourism | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 100 | 1998 |
| 6 | [UNIXO](https://www.tamtam.ai/c/unixo) (unixo.fr)
UNIXO specializes in providing innovative and personalized IT solutions for SMEs, ETIs & local authorities, including telecommunications integration, IT management, and broadband internet services | Telecommunications | 馃嚝馃嚪 Rennes | 90 | |
| 7 | [CYIM](https://www.tamtam.ai/c/cyim) (cyim.com)
A company specializing in IT and audiovisual services for medical societies, offering digital solutions for medical congresses and associations | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 88 | 2001 |
| 8 | [LIKSI](https://www.tamtam.ai/c/liksi) (liksi.fr)
LIKSI is a software development company in Rennes and Nantes, offering high-quality services with expertise in open source technologies and agile project teams | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 64 | 2017 |
| 9 | [Provectio](https://www.tamtam.ai/c/provectio) (provectio.fr)
IT services provider offering IT management, security, cloud computing, telecommunications, and network availability for businesses, providing support, strategy, and technical expertise | Telecommunications | 馃嚝馃嚪 Rennes | 48 | 2004 |
| 10 | [Groupe Pandora](https://www.tamtam.ai/c/groupe-pandora) (groupe-pandora.com)
Support for telecom and IT projects across northern France, offering technical expertise, personalized services, and strong team collaboration. | Telecommunications | 馃嚝馃嚪 Rennes | 42 | 2011 |
| 11 | [SpikeeLabs](https://www.tamtam.ai/c/spikeelabs) (spikeelabs.fr)
SpikeeLabs provides information system design, development, integration, and support services with a focus on growth, innovation, and strong human values | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 38 | 2016 |
| 12 | [MAX Digital Services](https://www.tamtam.ai/c/max-digital-services) (maxds.fr)
MAX DS is a digital services company focused on a collaborative model, prioritizing human values to provide high-quality consulting, software engineering, testing, and project management services | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 34 | 2016 |
| 13 | [Cognix Systems](https://www.tamtam.ai/c/cognix-systems) (cognix-systems.com)
Consulting, designing, and developing websites, advanced web applications, and software with a focus on ergonomic, high-value web portals. | Technology, Information and Internet | 馃嚝馃嚪 Rennes | 34 | 2002 |
| 14 | [VeoNum](https://www.tamtam.ai/c/veonum) (veonum.com)
Rennes-based consultancy firm with a human-centric approach, offering tailored training, benefits, and a focus on R&D in AI, machine learning, and video streaming technologies Join our team! | Software Development | 馃嚝馃嚪 Rennes | 25 | 2018 |
| 15 | [Agence LunaWeb](https://www.tamtam.ai/c/agence-lunaweb) (lunaweb.fr)
LunaWeb Agency specializes in designing user-centered web interfaces, providing strategic advice and technical development for engaging and responsive web experiences since 2004 | Technology, Information and Internet | 馃嚝馃嚪 Rennes | 23 | 2004 |
| 16 | [Net-ng](https://www.tamtam.ai/c/net-ng) (net-ng.com)
A Rennes-based ESN specializing in custom Python web app development, providing tailored solutions across various industries since 2003 | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 20 | 2003 |
| 17 | [Lina茂a](https://www.tamtam.ai/c/linaia) (linaia.com)
Based in the heart of Rennes, Lina茂a is a consulting and digital services agency, supporting projects and businesses with specialized web and mobile development teams | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 10 | 2015 |
| 18 | [Farsight VR](https://www.tamtam.ai/c/farsight-vr) (farsight-vr.com)
FARSIGHT specializes in creating custom virtual reality environments, augmented reality applications, and precise 3D modeling using the latest technologies | Professional Training and Coaching | 馃嚝馃嚪 Rennes | 9 | 2015 |
| 19 | [Slickteam](https://www.tamtam.ai/c/slickteam) (slickteam.fr)
Specializing in web and mobile development, technical training, and innovation projects for clients in energy management, healthcare, and industrial processes | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 8 | 2017 |
| 20 | [Conjecto](https://www.tamtam.ai/c/conjecto) (conjecto.com)
A multidisciplinary team specializing in data engineering and interface design, facilitating innovative projects with a focus on challenging solutions | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 8 | 2012 |
| 21 | [Timwi Consulting](https://www.tamtam.ai/c/timwi-consulting) (timwi.com)
Specializes in agile software development, architecture, and services using SOA/ESB, Java/JEE, .Net, emphasizing software craftsmanship. | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 8 | 2006 |
| 22 | [Kornog](https://www.tamtam.ai/c/kornog) (kornog.bzh)
Kornog is supported by the CAE 脡lan Cr茅ateur, assisting in the company's growth and development | Technology, Information and Internet | 馃嚝馃嚪 Rennes | 7 | 2019 |
| 23 | [TV Wonder](https://www.tamtam.ai/c/tv-wonder) (tvwonder.fr)
This company specializes in creating smart workspaces and dynamic signage solutions to enhance collaboration, communication, and customer engagement through innovative technologies | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 6 | 2014 |
| 24 | [Groupe Regards](https://www.tamtam.ai/c/groupe-regards) (klaxoon.com)
Development of innovative interactive fixed and mobile digital applications for SMEs, large companies, and communication agencies. | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 6 | 2009 |
| 25 | [Doptim - Data Optimizers](https://www.tamtam.ai/c/doptim-data-optimizers) (doptim.eu)
An engineering company in Brittany and Quebec specializing in data projects, AI algorithms, software platforms, and AI solutions for healthcare and genealogy | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 4 | 2017 |
| 26 | [Digital4Better x fruggr](https://www.tamtam.ai/c/digital4better-x-fruggr) (digital4better.com)
Measurement software and consulting services for environmental footprint tracking, eco-design, accessibility audits, and corporate socially responsible information system management strategies. | IT Services and IT Consulting | 馃嚝馃嚪 Rennes | 3 | |
## 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 Rennes
- [The largest companies in Rennes](https://www.tamtam.ai/l/largest-companies-rennes) (600)
- [Retail chains in Rennes](https://www.tamtam.ai/l/retail-chains-rennes) (50)
- [SaaS companies in Rennes](https://www.tamtam.ai/l/saas-companies-rennes) (49)
- [Public sector organisations in Rennes](https://www.tamtam.ai/l/public-sector-organisations-rennes) (47)
- [Professional services firms in Rennes](https://www.tamtam.ai/l/professional-services-firms-rennes) (44)
- [Companies with in-house R&D in Rennes](https://www.tamtam.ai/l/r-and-d-companies-rennes) (43)
- [Software Development companies in Rennes](https://www.tamtam.ai/l/software-development-companies-rennes) (40)
- [Law Practice companies in Rennes](https://www.tamtam.ai/l/law-practice-companies-rennes) (39)
- [Education providers in Rennes](https://www.tamtam.ai/l/education-companies-rennes) (38)
- [Multinational companies in Rennes](https://www.tamtam.ai/l/multinational-companies-rennes) (33)
- [Subscription businesses in Rennes](https://www.tamtam.ai/l/subscription-businesses-rennes) (27)
- [Legal Services companies in Rennes](https://www.tamtam.ai/l/legal-services-companies-rennes) (26)
- [Real Estate companies in Rennes](https://www.tamtam.ai/l/real-estate-companies-rennes) (26)
- [Consulting firms in Rennes](https://www.tamtam.ai/l/consulting-firms-rennes) (25)
- [Recruitment and staffing agencies in Rennes](https://www.tamtam.ai/l/recruitment-agencies-rennes) (25)
## The same list elsewhere in France
- [IT services companies in France](https://www.tamtam.ai/l/it-services-companies-france) (5,000)
- [IT services companies in 脦le-de-France](https://www.tamtam.ai/l/it-services-companies-ile-de-france) (2,624)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT services companies in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/it-services-companies-auvergne-rhone-alpes) (519)
- [IT services companies in the Rh么ne department](https://www.tamtam.ai/l/it-services-companies-rhone) (286)
- [IT services companies in Occitanie](https://www.tamtam.ai/l/it-services-companies-occitanie) (280)
- [IT services companies in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/it-services-companies-provence-alpes-cote-dazur) (268)
- [IT services companies in Grand Est](https://www.tamtam.ai/l/it-services-companies-grand-est) (248)
- [IT services companies in Hauts-de-France](https://www.tamtam.ai/l/it-services-companies-hauts-de-france) (236)
- [IT services companies in Pays de la Loire](https://www.tamtam.ai/l/it-services-companies-pays-de-la-loire) (205)
- [IT services companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/it-services-companies-nouvelle-aquitaine) (194)
- [IT services companies in the Nord department](https://www.tamtam.ai/l/it-services-companies-nord) (170)
- [IT services companies in the Haute-Garonne department](https://www.tamtam.ai/l/it-services-companies-haute-garonne) (158)
- [IT services companies in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/it-services-companies-bouches-du-rhone) (155)
- [IT services companies in the Loire-Atlantique department](https://www.tamtam.ai/l/it-services-companies-loire-atlantique) (130)
- [IT services companies in the Yvelines department](https://www.tamtam.ai/l/it-services-companies-yvelines) (121)
- [IT services companies in Brittany](https://www.tamtam.ai/l/it-services-companies-brittany) (113)
- [IT services companies in the Val-de-Marne department](https://www.tamtam.ai/l/it-services-companies-val-de-marne) (101)
- [IT services companies in the Gironde department](https://www.tamtam.ai/l/it-services-companies-gironde) (99)
- [IT services companies in Paris](https://www.tamtam.ai/l/it-services-companies-paris) (1,386)
- [IT services companies in Lyon](https://www.tamtam.ai/l/it-services-companies-lyon) (171)
- [IT services companies in Boulogne-Billancourt](https://www.tamtam.ai/l/it-services-companies-boulogne-billancourt) (125)
- [IT services companies in Toulouse](https://www.tamtam.ai/l/it-services-companies-toulouse) (119)
- [IT services companies in Levallois-Perret](https://www.tamtam.ai/l/it-services-companies-levallois-perret) (94)
## The same list elsewhere
- [IT services companies in the world](https://www.tamtam.ai/l/it-services-companies-in-the-world) (20,934)
- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
---
Source: https://www.tamtam.ai/l/it-services-companies-rennes