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Managed service providers headquartered in Grand Est

Tamtam tracks 46 managed service providers headquartered in Grand Est. This list ranks all of them by number of employees on LinkedIn, led by SPIE France, OVHcloud and Smile. Their median headcount is 43. Half of them were founded in 2002 or later. The most common headquarters are Strasbourg (7), Illkirch-Graffenstaden (2) and Levallois-Perret (2).

🇫🇷 Grand Est46 companiesUpdated Nov 11, 2026

The companies listed are primarily managed service providers in the Grand Est region, with a strong emphasis on IT services, software development, and telecommunications. This selection includes firms of varying sizes, from large global actors like SPIE France, which focuses on energy and digital transitions, and OVHcloud, a major European cloud provider, to mid-sized companies such as adista, offering comprehensive IT services, and Hexanet, specializing in telecom and hosting.

A notable pattern among these companies is the significant presence of IT services and software development firms founded in the 1990s and early 2000s, indicating a mature yet evolving tech landscape. For instance, Smile provides open-source digital services, Ospi develops certified health data software, and SdV focuses on content management and secure hosting. Digora specializes in data management, supporting digital transformation, while Stelogy offers VoIP and ToIP services for SMEs. Trustteam France also provides comprehensive IT solutions with a focus on digital transformation.

#CompanyIndustryHeadquarters EmployeesFounded
1
SPIE Francespie.fr

Global actor in energy, digital, and industrial transitions, offering concrete solutions for decarbonizing buildings, industries, and territories through various technical services.

IT Services and IT Consulting 🇫🇷 Cergy-Pontoise 9,833 n/a
2
OVHcloudovhcloud.com

Global player and leading European cloud provider operating 450,000 servers within 43 data centers across 4 continents, reaching 1.6 million customers.

Software Development 🇫🇷 Roubaix 3,251 1999
3
Smilesmile.eu

This company offers open-source digital services, including e-commerce platforms, business applications, and data management, to enhance client businesses with reliable technology decisions.

IT Services and IT Consulting 🇫🇷 Asnières sur seine 2,040 1991
4
adistaadista.fr

Provides comprehensive IT services, including hosting, telecommunications, and system integration, for SMEs, public entities, and healthcare organizations, offering high-speed internet access and disaster recovery.

IT Services and IT Consulting 🇫🇷 Maxéville 745 1981
5
Stelogystelogy.com

Operator and Integrator of VoIP and ToIP services, offering telephony solutions specifically designed for small and medium-sized enterprises.

Telecommunications 🇫🇷 Paris 501 1999
6
Hexanethexanet.fr

A Reims-based team of internet, network, and telecommunications professionals offering specialized services such as telecom, unified telephony, hosting, and more

IT Services and IT Consulting 🇫🇷 Reims 225 1997
7
Ospiospi.fr

Develops and hosts certified health data software for hospitals, specializing in health data and AI for over 1100 public and private health establishments.

Software Development 🇫🇷 Lyon 155 1998
8
Be-Cloudbe-cloud.fr

Support SMEs adoption Microsoft solutions with expert consulting, training, proactive maintenance, and infrastructure optimization for secure, efficient cloud environments.

Information Services 🇫🇷 Paris 116 2012
9
Groupe ANTARES | Infogérance & Services Numériquesantares.fr

Providing IT managed services, infrastructure supervision, information system security, connectivity cabling, and multimedia solutions for private companies and public organizations across France.

IT Services and IT Consulting 🇫🇷 Levallois-Perret 111 2001
10
SQIsqi.fr

Helps companies in project mode, especially in construction, public works, and technical trades, build tailored information systems and offers IT services and partnerships.

Software Development 🇫🇷 Versailles 106 1990
11
SdVsdv.fr

Provides flexible content management, secure hosting, custom development, and domain management to support digital projects for media and institutions.

Technology, Information and Internet 🇫🇷 Strasbourg 105 1981
12
Digoradeep.eu

Expert in data management, supporting companies with digital transformation, infrastructure, maintenance, and innovation for availability, performance, and security.

IT Services and IT Consulting 🇫🇷 Strasbourg 100 1997
13
Casteliscastelis.com

Develops custom software solutions for various sectors, including e-commerce, works councils, service companies, and general businesses, covering web technologies and database management.

IT System Custom Software Development 🇫🇷 Ivry-sur-Seine 93 1999
14
Trustteam Francetrustteam.fr

With nearly 60 years of experience, the company provides comprehensive IT solutions, specializing in design, deployment, and maintenance to meet clients' digital transformation needs

IT Services and IT Consulting 🇫🇷 Maxeville 92 1981
15
Synovo Groupsynovo-group.com

A digital services and software publishing company specializing in healthcare transport, offering a range of products and services including hosting, IT support, and software solutions

Software Development 🇫🇷 Strasbourg 87 2013
16
LCMHlcmh.fr

A digital services provider founded in 2009, offering a range of solutions to meet the digital needs of businesses

IT Services and IT Consulting 🇫🇷 Mulhouse 85 2009
17
AMOSSYSalmond.eu

Amossys is a French cybersecurity consultancy specializing in strategic sectors, providing expertise, accredited IT security evaluations, and a range of cyber services

Computer and Network Security 🇫🇷 Rennes 64 2007
18
ESPACE TECHNOLOGIEespace-technologie.com

Provides IT solutions, networks, hardware, security, internet, application development, management software, ERP, telecom, and data center services for businesses.

IT Services and IT Consulting 🇫🇷 Challans 60 1993
19
OCI RendezNousMeilleursoci-rendeznousmeilleurs.fr

OCI Group is a full-service IT and digital company in France, focusing on cloud, cybersecurity, networking, and more, prioritizing personal growth and authenticity

IT Services and IT Consulting 🇫🇷 Mundolsheim 55 1979
20
Axialysaxialys.com

French CCaaS platform combining cloud telephony, contact center solution, conversational AI. Also own telecom carrier. Made in France and GDPR compliant.

Software Development 🇫🇷 Levallois-Perret 51 1999
21
NXO Telecomnxo.eu

NXO Telecom, a subsidiary of NXO France group, specializes in digital integration and management for businesses, focusing on communication, collaboration, infrastructure, security, and services

IT Services and IT Consulting 🇫🇷 WITTELSHEIM (Alsace) 49 1989
22
SIB - Agence Symarissib.fr

A cooperative digital healthcare provider specializing in mental health information systems, serving over 620 healthcare facilities and local governments

Software Development 🇫🇷 Rouffach 44 1993
23
novadysnovadys.fr

Develops collaborative cloud and mobile software solutions for project and time management, including certified tools for project workflow, non-conformity, and continuous improvement.

Software Development 🇫🇷 Saint-Martin-sur-le-Pré 43 1996

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24
TL systèmestl-systemes.fr

TL Systèmes, a member of Trustteam Group, offers 360° IT solutions to clients, specializing in design, deployment, and maintenance of various technology solutions

IT Services and IT Consulting 🇫🇷 Maxéville 42 1964
25
Scalingoscalingo.com

Platform as a Service enabling quick and easy application hosting without server management, simplifying cloud hosting and empowering developers to manage application lifecycles efficiently

IT Services and IT Consulting 🇫🇷 Strasbourg 41 2015
26
IPGARDEipgarde.com

Provides enterprise-level international cloud hosting services and solutions for businesses from SMB to Fortune 500, ensuring high customer satisfaction for various applications.

IT Services and IT Consulting 🇫🇷 Alixan 36 2004
27
Agora Calycéagoracalyce.com

Specialized in custom private cloud hosting, cost-effective strategies, ISO-certified security, complex project management, and 24/7 cloud environment operations.

IT Services and IT Consulting 🇫🇷 Strasbourg 36 2013
28
Air Cloudair-cloud.fr

Support and guidance for deploying Microsoft cloud applications, user training, security control, budget management, and infrastructure optimization for businesses.

Information Services 🇫🇷 Illkirch-Graffenstaden 35 2020
29
ESTEL NUMERIQUEestel-numerique.com

Innovative IT services company developing Agritech and SME software solutions to help professionals implement new technologies for their expert advice

IT Services and IT Consulting 🇫🇷 Malzéville 33 2007
30
OPSops-services.fr

OPS is a specialized company in IT, telephony, and internet networks for professionals, providing flexible solutions in security, telecommunications, hosting, and maintenance

Telecommunications 🇫🇷 Saint-Martin-sur-le-Pré 31 2004
31
Alliance Informatiquealliance-informatique.fr

Comprehensive IT and telephony solutions provider for small and medium businesses, offering services from engineering to deployment, focusing on digital transformation

IT Services and IT Consulting 🇫🇷 Entzheim 27 2002
32
ACKnowledgeacknowledge.fr

Modernization of IT infrastructures, with a strong focus on cybersecurity and cloud solutions, systematically integrating automation into projects.

IT Services and IT Consulting 🇫🇷 Paris 24 2015
33
XSALTOalpilink.fr

French-based company offering secure hosting services with expert support, ISO 27001 certified data center, and a range of other services including cloud, e-commerce, and CRM

IT Services and IT Consulting 🇫🇷 Seyssinet-Pariset 20 1995
34
IT CONSULTANT SERVICESitconsultant.fr

Specializing in Cloud Architecture & Security, IT Consultant Services helps clients migrate workloads to the cloud and design new delivery models with cloud technologies

IT System Design Services 🇫🇷 Strasbourg 16 2011
35
SFR Business Estsfrbusiness.fr

SFR Business Distribution is a national distributor of business solutions, offering a range of services from mobile to IoT, supporting growth and digital transformation

Telecommunications 🇫🇷 Metz 16 1999
36
SELCEONselceon.com

Specializes in consulting, integration, and management of next-generation work environments, leveraging Workspace One and combining Modern Management and VDI solutions for clients.

IT Services and IT Consulting 🇫🇷 Asnières-sur-Seine 15 2017
37
Le 16 Solutionsle16solutions.com

16Solutions provides B2B IT services since 1988, offering expertise in hardware, software, development, hosting, and more, with a focus on building long-lasting partnerships

Computer Networking Products 🇫🇷 Frouard 13 1988
38
NIS GROUP FRANCEnis-group.fr

A professional consulting firm offering IT, telecommunications, and cybersecurity services with a focus on customer satisfaction, tailored solutions, and continuous training

Computer and Network Security 🇫🇷 Fagnières 12 2010
39
Netalisnetalis.fr

Provides telecommunication services like fiber and radio links, offers hosted services including messaging, virtual hosting, VoIP, mobile telephony, and remote backup.

Telecommunications 🇫🇷 Besançon 11 2015
40
KIWI BACKUP - L'intelligence de la sauvegardekiwi-backup.com

A pioneer in outsourced backup, providing secure data storage solutions in French data centers for businesses of all sizes Offering tailored services and support

Computer and Network Security 🇫🇷 Mulhouse 11 2003
41
ADN SYSTEMES / DIXINFORadn-systemes.fr

Technology and information services company located in France, specializing in providing a range of technological solutions and services to clients

IT Services and IT Consulting 🇫🇷 Bréviandes 11 2012
42
ARIS Informatique - Prestataire informatiquearis-informatique.fr

Specializing in digital transformation, the company offers tailored IT solutions including servers, network infrastructure, security, cloud services, VoIP, and website development to support clients long-term

IT Services and IT Consulting 🇫🇷 Illkirch-Graffenstaden 9 2007
43
ScaleDEVscaledev.fr

Champagne-based software engineering agency offering tailored digital solutions, from design to development, including websites, e-commerce, apps, SaaS, and more, with focus on quality, support, and security

Technology, Information and Internet 🇫🇷 Saint-André-les-Vergers 8 2010
44
LINKOFFICElinkoffice.fr

Specializing in hosting and optimizing information systems, we design hybrid Cloud architectures tailored to specific business needs, particularly in the accounting profession, with over 230 hosted applications

Computer and Network Security 🇫🇷 Strasbourg 8 2004
45
Thalyoscyberpreventys.com

A digital services company specializing in developing, securing, and maintaining IT infrastructure while focusing on cybersecurity to make businesses cyber-resilient

IT Services and IT Consulting 🇫🇷 Florange 5 2002
46
BIT CONSULTING

Engineering and consulting firm specializing in cloud infrastructure, OpenStack, monitoring solutions, network security, and operational efficiency enhancement.

Engineering Services 🇫🇷 Paris 4 2020

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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.

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