The Hérault department hosts a concentration of IT services and software development companies, many of which are mid-sized firms. These companies offer a range of specialized digital solutions, from cybersecurity to custom application development. Most of these firms are headquartered in Montpellier, indicating a regional hub for digital expertise.
Services Network Security specializes in securing internet gateways, while Acelys Services Numériques focuses on software development and cybersecurity. Kaliop delivers multi-channel content management solutions, and Groupe ISIA provides responsible digital transformation services. A common pattern observed is the prevalence of companies founded in the early 2000s, suggesting a period of significant growth in the region's tech sector.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Services Network Securitysns-security.fr
Specializes in securing internet gateways and VPN interconnections, managing over 1200 sites nationally and internationally. First Fortinet certified MSSP partner in France. |
189 | |||
| 2 |
Acelys Services Numériquesacelys.fr
An independent ESN in Montpellier, specializing in software development, business intelligence, dematerialization, cybersecurity, and infrastructure, with a focus on talent development and internal promotion |
175 | |||
| 3 |
Kaliopkaliop.com
Delivers multi-channel content management solutions. Offers professional services from consulting to hosting for digital projects in various industries. |
120 | |||
| 4 |
Groupe ISIAgroupe-isia.com
This company specializes in responsible digital transformation services, including digital frescoes, web eco-design, accessibility audits, and carbon footprint measurement |
107 | |||
| 5 |
Armoniearmonie.group
Specialized teams providing human, software, and hardware solutions focused on IBM i platform development, training, and operations with agile management. |
106 | |||
| 6 |
Synantosynanto.fr
This is a human-sized ESN offering stimulating missions, career development, and expert consulting services, primarily in banking, finance, and insurance sectors. |
82 | |||
| 7 |
Proxielproxiel.com
French digital services company provides IT maintenance, software development, and IT solutions, with a training hub for skill development for employees and partners. |
68 | |||
| 8 | 62 | ||||
| 9 |
LRDgroupe.avec.fr
LRD is a computer engineering consulting firm specializing in designing and developing custom applications for service kiosks, industrial machines and supervision systems |
54 | |||
| 10 |
ADEC SASadec-sas.com
Provides secure electronic data exchange and digital archiving services for judicial officers, institutions, and financial organizations ensuring confidentiality and compliance. |
49 | |||
| 11 |
Spiriitspiriit.com
Creation and optimization of digital ecosystems through e-commerce platforms, custom application development, UX design, data, and AI to drive real business impact. |
46 | |||
| 12 |
Informatique & Réseauxinforeseaux.com
IT services and engineering company specializing in computer technology solutions and services |
45 | |||
| 13 |
COGITIScogitis.fr
A public operator of digital services assisting local authorities in digital transformation since 1998, managing information systems and projects |
44 | |||
| 14 |
TALARON SERVICEStalaron-services.com
TALARON Services is an ESN that specializes in being a socially inclusive company, employing at least 55% of people with disabilities |
42 | |||
| 15 | 37 | ||||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 | 37 | ||||
| 17 |
Compufirstcompufirst.com
Innovative IT solutions provider for French Microenterprises, SMEs, and ETIs, offering a wide range of products, services, financing options, and personalized support |
35 | |||
| 18 | 33 | ||||
| 19 |
BEEMO TECHNOLOGIEbeemotechnologie.com
Beemo Technologie provides secure and automated data backup solutions for businesses, ensuring the preservation and restoration of critical data in multiple secure locations |
33 | |||
| 20 |
IPSIP Groupipsip.eu
IPSIP offers modular data center solutions addressing energy and security constraints, providing customized design, manufacturing, deployment, and global monitoring platform solutions in 12 weeks |
33 | |||
| 21 | 33 | ||||
| 22 |
ABSYS Informatique SASabsys-services.fr
A company specializing in analyzing and meeting clients' needs, providing services from conception to maintenance focused on building, maintaining, evolving, and securing businesses |
31 | |||
| 23 | 30 | ||||
| 24 |
Believe ITbelieveit.fr
BELIEVE IT is an IT service company in Montpellier, founded by developers, specializing in software development and technology solutions |
26 | |||
| 25 |
Synapse Informatiquesynapse-info.com
Develops custom web and mobile software for industrial risks, health, innovative services, and water resource management with flood prevention solutions. |
24 | |||
| 26 |
Do IT Nowdoitnowgroup.com
A leading provider of high performance computing solutions, specializing in advanced technologies such as Big Data, AI, cloud computing, and storage |
24 | |||
| 27 |
Rakuten DXrakuten-dx.com
Specializing in mobile app development, Rakuten DX utilizes No code & Low code technologies to deliver quality, secure apps with a focus on design and user experience |
22 | |||
| 28 |
Yupiikyupiik.com
The company helps clients navigate technological shifts through end-to-end tech-enabled transformations, focusing on IT infrastructure, architecture, operations, and technology strategy |
21 | |||
| 29 |
CibleWebcibleweb.com
With over 20 years of experience, this company specializes in web marketing, SEO, SEA, SEM, e-commerce, and training services for businesses |
20 | |||
| 30 | 20 | ||||
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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.
More company lists in the Hérault department
- The largest companies in the Hérault department 1,461
- Companies with in-house R&D in the Hérault department 155
- Retail chains in the Hérault department 131
- SaaS companies in the Hérault department 110
- Software Development companies in the Hérault department 107
- Multinational companies in the Hérault department 103
- Professional services firms in the Hérault department 84
- Manufacturers in the Hérault department 71
- Public sector organisations in the Hérault department 68
- Education providers in the Hérault department 61
- Hardware manufacturers in the Hérault department 61
- Critical infrastructure operators in the Hérault department 57
- IT Services and IT Consulting companies in the Hérault department 57
- Real Estate companies in the Hérault department 56
- Retail companies in the Hérault department 54
- Higher Education companies in the Hérault department 52
- Family-owned companies in the Hérault department 50
- Law Practice companies in the Hérault department 49
- Accounting firms in the Hérault department 48
- Healthcare providers in the Hérault department 48
- Accounting companies in the Hérault department 48
- Distributors and wholesalers in the Hérault department 48
- Pharmaceutical companies in the Hérault department 44
- Subscription businesses in the Hérault department 44
The same list elsewhere in France
- IT services companies in France 5,000
- IT services companies in Île-de-France 2,624
- IT services companies in the Hauts-de-Seine department 737
- IT services companies in Auvergne-Rhône-Alpes 519
- IT services companies in the Rhône department 286
- IT services companies in Occitanie 280
- IT services companies in Provence-Alpes-Côte d'Azur 268
- IT services companies in Grand Est 248
- IT services companies in Hauts-de-France 236
- IT services companies in Pays de la Loire 205
- IT services companies in Nouvelle-Aquitaine 194
- IT services companies in the Nord department 170
- IT services companies in the Haute-Garonne department 158
- IT services companies in the Bouches-du-Rhône department 155
- IT services companies in the Loire-Atlantique department 130
- IT services companies in the Yvelines department 121
- IT services companies in Brittany 113
- IT services companies in the Val-de-Marne department 101
- IT services companies in the Gironde department 99
- IT services companies in Paris 1,386
- IT services companies in Lyon 171
- IT services companies in Boulogne-Billancourt 125
- IT services companies in Toulouse 119
- IT services companies in Levallois-Perret 94