# Top 29 IT services companies in the Seine-et-Marne department

Tamtam tracks 29 IT services companies headquartered in the Seine-et-Marne department. This list ranks all of them by number of employees on LinkedIn, led by ACRELEC, ELCIMAÏ and ITQ GROUP. Their median headcount is 13. Half of them were founded in 2007 or later. The most common headquarters are Champs-sur-Marne (5), Serris (4) and Melun (3).

The IT services companies in Seine-et-Marne include both larger firms and numerous young companies. ACRELEC, founded in 2004, is a global technology company focused on customer experiences for restaurants and retail. ELCIMAÏ, established in 1992, specializes in engineering and IT. ITQ GROUP, from 2011, provides security integration and maintenance. Upper-Link, founded in 2007, offers collaborative solutions for project management. Baryton, founded in 1986, integrates ERP, CRM, and BI solutions for SMEs. Most of these companies were founded in the 2000s or 2010s, indicating a relatively recent growth in the sector within the department.Many of these companies provide a range of IT services, such as software development, IT consulting, and system integration. Several firms, including MLMConseil and ITESS, focus on ERP and BI solutions or IP telephony. A notable pattern is the concentration of headquarters in communes like Serris and Champs-sur-Marne, suggesting regional hubs for IT services.

🇫🇷 Seine-et-Marne · 29 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ACRELEC](https://www.tamtam.ai/c/acrelec) (acrelec.com)<br>Global technology company transforming customer experiences for restaurants and retail brands through innovative platforms that enhance engagement, efficiency, and operations globally | IT Services and IT Consulting | 🇫🇷 Saint Thibault des Vignes | 689 | 2004 |
| 2 | [ELCIMAÏ](https://www.tamtam.ai/c/elcimai) (elcimai.com)<br>A French holding specializing in building and process engineering, logistics consulting, and IT engineering, with subsidiaries catering to various industries | Engineering Services | 🇫🇷 Melun | 378 | 1992 |
| 3 | [ITQ GROUP](https://www.tamtam.ai/c/itq-group) (itqgroup.fr)<br>French group specializing in security integration and maintenance services for public and private sectors, offering a range of solutions such as video surveillance and access control | Security and Investigations | 🇫🇷 Serris | 99 | 2011 |
| 4 | [Upper-Link (Inherent Group)](https://www.tamtam.ai/c/upper-link-inherent-group) (upper-link.com)<br>With over 15 years of experience, the company specializes in collaborative solutions such as Share Point, Domino, and EMP for effective project management | IT Services and IT Consulting | 🇫🇷 Lognes | 92 | 2007 |
| 5 | [Baryton](https://www.tamtam.ai/c/baryton) (groupetenor.com)<br>Integration of ERP, CRM, and BI solutions for SMEs and mid-sized companies to optimize business management and improve productivity. | Software Development | 🇫🇷 Serris | 59 | 1986 |
| 6 | [MLMConseil](https://www.tamtam.ai/c/mlmconseil) (mlmconseil.com)<br>MLMCONSEIL is a consulting and software engineering development company, specializing in ERP and BI solutions for businesses' strategic needs | IT Services and IT Consulting | 🇫🇷 Noisiel | 46 | 2011 |
| 7 | [ATF Gaia](https://www.tamtam.ai/c/atf-gaia) (atf-gaia.fr)<br>Provides advanced data analytics services and solutions to help businesses optimize operations, improve decision-making, and enhance performance. | Retail Office Equipment | 🇫🇷 Moissy-Cramayel | 40 | 2008 |
| 8 | [ITESS](https://www.tamtam.ai/c/itess) (itess.fr)<br>ITESS specializes in computer engineering and IP telephony services, ensuring reliable and efficient information systems to support business growth without unnecessary constraints | IT Services and IT Consulting | 🇫🇷 Fontainebleau | 29 | 2010 |
| 9 | [AZApp - Sites Internet et communication digitale](https://www.tamtam.ai/c/azapp-sites-internet-et-communication-digitale) (azapp.fr)<br>Specializes in application development, IT management, and visual communication, focusing on client needs, transparency, and team development. | IT Services and IT Consulting | 🇫🇷 Champs-sur-Marne | 28 | 2012 |
| 10 | [STIMDATA](https://www.tamtam.ai/c/stimdata) (stimdata.com)<br>A specialized company offering innovative web and mobile solutions for the pharmaceutical sector, focusing on collaboration, quality, and customer service | IT Services and IT Consulting | 🇫🇷 Bussy-Saint-Georges | 27 | 2008 |
| 11 | [Synaps System](https://www.tamtam.ai/c/synaps-system) (synsys.fr)<br>The company specializes in systems and networks integration, offering tailored solutions for complex IT infrastructures with a focus on reliability and customer satisfaction | IT Services and IT Consulting | 🇫🇷 Champs-sur-Marne | 26 | 2005 |
| 12 | [IDM \| Ingenierie Diffusion Multimedia](https://www.tamtam.ai/c/idm-ingenierie-diffusion-multimedia) (idmgroup.com)<br>A publishing solution integrator maximizing content value through advertising, specialized in programmatic advertising and content management with innovative technologies and practices | Software Development | 🇫🇷 Champs-sur-Marne | 23 | 1994 |
| 13 | [MEETRIX](https://www.tamtam.ai/c/meetrix) (meetrix.fr)<br>Meetrix is an ESN specializing in Cloud computing, virtualization, and digital transformation for companies, offering tailored IT services and support | IT Services and IT Consulting | 🇫🇷 Serris | 23 | 2007 |
| 14 | [Euromédia Réseaux & Sécurité](https://www.tamtam.ai/c/euromedia-reseaux-and-securite) (euromedia.fr)<br>Specializes in network integration, cybersecurity, and distribution of network equipment, supporting infrastructure evolution and technology deployment with expert maintenance. | IT Services and IT Consulting | 🇫🇷 Croissy-Beaubourg | 22 | 1991 |
| 15 | [Serviware](https://www.tamtam.ai/c/serviware) (serviware.fr)<br>Specializing in information systems implementation, storage, data processing, and graphic visualization, this company is a major player in the French scientific IT and storage market since 1994 | IT Services and IT Consulting | 🇫🇷 Croissy-Beaubourg | 13 | 1994 |
| 16 | [Sungard Availability Services France](https://www.tamtam.ai/c/sungard-availability-services-france) (sungardas.fr)<br>Providing integrated disaster recovery, managed IT services, consulting, and business continuity software to secure and connect business-critical IT systems globally. | IT Services and IT Consulting | 🇫🇷 Lognes | 12 | 1982 |
| 17 | [VADEMI](https://www.tamtam.ai/c/vademi) (vademi.com)<br>Independent consulting firm specializing in cybersecurity, supporting companies in digital transformation with tailored security, auditing, and cloud expertise. | IT Services and IT Consulting | 🇫🇷 Melun | 10 | 2014 |
| 18 | [Safir Engineering S.A.S](https://www.tamtam.ai/c/safir-engineering-s-a-s) (safireng.com)<br>An electrical/automation manufacturing company based in France specializing in engineering solutions for a variety of industries | Appliances, Electrical, and Electronics Manufacturing | 🇫🇷 Quincy-Voisins | 10 | 1999 |
| 19 | [Num-Evo](https://www.tamtam.ai/c/num-evo) (num-evo.fr)<br>Specializing in XEROX printing solutions, this company in Marne-la-Vallée offers expertise in digital printing, quality service, customer support, and personalized consultation for all needs | IT Services and IT Consulting | 🇫🇷 Serris | 9 | 2003 |
| 20 | [Jason Consulting](https://www.tamtam.ai/c/jason-consulting) (jason-consulting.fr)<br>A multicultural company specializing in managing information security, risk management processes, compliance, and creating solutions for success in dynamic environments | IT Services and IT Consulting | 🇫🇷 Chelles | 9 | 2011 |
| 21 | [Cap Barthodia](https://www.tamtam.ai/c/cap-barthodia) (capbarthodia.com)<br>Develops custom business management software for small and medium-sized enterprises, optimizing business processes with personalized, innovative, and open-source solutions. | Software Development | 🇫🇷 Gretz-Armainvilliers | 8 | 2006 |
| 22 | [PROXIMA OFFICE](https://www.tamtam.ai/c/proxima-office) (proxima-office.fr)<br>Integrated office solutions for digital transformation, helping businesses optimize their workflow and processes through innovative technology integration | IT Services and IT Consulting | 🇫🇷 Brie-Comte-Robert | 8 |  |
| 23 | [Uneeti](https://www.tamtam.ai/c/uneeti) (uneeti.com)<br>Provides managed IT services, telecommunications, immutable backups, and security training to help small organizations maintain secure infrastructure through audits and integrated maintenance. | IT Services and IT Consulting | 🇫🇷 Lieusaint | 6 | 2002 |
| 24 | [TVF Consulting](https://www.tamtam.ai/c/tvf-consulting) (tvfinnovation.com)<br>A consulting firm specializing in digitalization for medical companies and communities to enhance efficiency and optimize operations | IT Services and IT Consulting | 🇫🇷 Jouarre | 5 | 2020 |
| 25 | [GROUP. IMAGES 2 Multimédia](https://www.tamtam.ai/c/group-images-2-multimedia) (group-images2.com)<br>This firm provides diverse services in computer science, new technologies, and internet-related fields, targeting businesses and organizations within the tech sector | Computer Networking Products | 🇫🇷 Champs-sur-Marne | 4 | 1999 |
| 26 | [Karefil](https://www.tamtam.ai/c/karefil) (karefil.fr)<br>KAREFIL is a computer software company based in France, specializing in developing innovative software solutions for various industries | IT Services and IT Consulting | 🇫🇷 Liverdy-en-Brie | 4 | 2008 |
| 27 | [MoHawk Cloud](https://www.tamtam.ai/c/mohawk-cloud) (mohawkcloud.io)<br>A digital transformation agency providing consulting services for organizational and digital transformations, representing clients with external providers, managing cloud security, and enabling innovation | IT Services and IT Consulting | 🇫🇷 Champs-sur-Marne | 2 | 2018 |
| 28 | [BPK SOLUTIONS](https://www.tamtam.ai/c/bpk-solutions)<br>The company helps businesses reduce administrative time by 50% with Google Workspace and Pennylane, optimizing collaboration, document management, and accounting processes | Business Consulting and Services | 🇫🇷 Thorigny-sur-Marne | 1 | 2023 |
| 29 | [POC2PROD](https://www.tamtam.ai/c/poc2prod) (poc2prod.com)<br>A consulting firm specializing in integrating artificial intelligences and Cloud Computing to help companies innovate from Proof of Concept to Production | Technology, Information and Internet | 🇫🇷 Melun | 1 | 2015 |

## 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 Seine-et-Marne department

- [The largest companies in the Seine-et-Marne department](https://www.tamtam.ai/l/largest-companies-seine-et-marne) (947)
- [Multinational companies in the Seine-et-Marne department](https://www.tamtam.ai/l/multinational-companies-seine-et-marne) (139)
- [Companies with in-house R&D in the Seine-et-Marne department](https://www.tamtam.ai/l/r-and-d-companies-seine-et-marne) (104)
- [Manufacturers in the Seine-et-Marne department](https://www.tamtam.ai/l/manufacturers-seine-et-marne) (100)
- [Hardware manufacturers in the Seine-et-Marne department](https://www.tamtam.ai/l/hardware-companies-seine-et-marne) (84)
- [Distributors and wholesalers in the Seine-et-Marne department](https://www.tamtam.ai/l/distributors-and-wholesalers-seine-et-marne) (82)
- [Retail chains in the Seine-et-Marne department](https://www.tamtam.ai/l/retail-chains-seine-et-marne) (68)
- [Construction companies in the Seine-et-Marne department](https://www.tamtam.ai/l/construction-companies-seine-et-marne) (57)
- [Family-owned companies in the Seine-et-Marne department](https://www.tamtam.ai/l/family-owned-companies-seine-et-marne) (49)
- [Public sector organisations in the Seine-et-Marne department](https://www.tamtam.ai/l/public-sector-organisations-seine-et-marne) (49)
- [Professional services firms in the Seine-et-Marne department](https://www.tamtam.ai/l/professional-services-firms-seine-et-marne) (41)
- [Government Administration companies in the Seine-et-Marne department](https://www.tamtam.ai/l/government-administration-companies-seine-et-marne) (39)
- [Industrial Machinery Manufacturing companies in the Seine-et-Marne department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-seine-et-marne) (34)
- [Wholesale companies in the Seine-et-Marne department](https://www.tamtam.ai/l/wholesale-companies-seine-et-marne) (34)
- [Critical infrastructure operators in the Seine-et-Marne department](https://www.tamtam.ai/l/critical-infrastructure-operators-seine-et-marne) (33)
- [Retail companies in the Seine-et-Marne department](https://www.tamtam.ai/l/retail-companies-seine-et-marne) (33)
- [Education providers in the Seine-et-Marne department](https://www.tamtam.ai/l/education-companies-seine-et-marne) (31)
- [IT Services and IT Consulting companies in the Seine-et-Marne department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-seine-et-marne) (31)
- [Contract manufacturers in the Seine-et-Marne department](https://www.tamtam.ai/l/contract-manufacturers-seine-et-marne) (26)
- [Healthcare providers in the Seine-et-Marne department](https://www.tamtam.ai/l/healthcare-providers-seine-et-marne) (26)
- [Higher Education companies in the Seine-et-Marne department](https://www.tamtam.ai/l/higher-education-companies-seine-et-marne) (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 Île-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-Rhône-Alpes](https://www.tamtam.ai/l/it-services-companies-auvergne-rhone-alpes) (519)
- [IT services companies in the Rhône 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-Côte 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-Rhône 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)

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Source: https://www.tamtam.ai/l/it-services-companies-seine-et-marne