This selection of professional services firms in Hérault showcases a mix of established companies and younger firms, primarily concentrated around Montpellier. ALTRAD, founded in 1985, is a global provider of industrial services. Crystal, established in 1992, is a wealth management advisor, while Inovéa, founded in 2017, also operates in financial services. Biotope, from 1993, specializes in ecological engineering, and Groupe PSI Sécurité, founded in 1998, offers private security.
The data reveals a strong presence of companies in financial services and environmental services. For instance, Crystal and Inovéa are both prominent in wealth management and financial education. Similarly, ALTRAD and Biotope offer diverse environmental solutions. Most of the companies listed were founded between the mid-1980s and the late 1990s, indicating a period of significant growth for professional services in the region.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
ALTRADaltrad.com
Global provider of industrial services and equipment manufacturing, offering high-value solutions across energy, oil & gas, construction, and environmental sectors. |
52,000 | |||
| 2 |
Crystalgroupe-crystal.com
Leading independent wealth management advisor, offering private client services, investment solutions for professionals, and digital platforms for independent wealth managers, with national and international reach. |
817 | |||
| 3 |
Inovéainovea-group.com
Provides financial education programs, wealth management solutions, and a national network of auditors and consultants for client satisfaction. |
652 | |||
| 4 |
Biotopebiotope.fr
A leading French ecological engineering and nature conservation company with over 240 employees, 25 sites, operations in 40+ countries, and diverse services |
585 | |||
| 5 |
Groupe PSI Sécuritépsisecurite.fr
With 24 years of experience, this company specializes in private security and safety services, offering a comprehensive range to become regional leaders |
181 | |||
| 6 |
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 | |||
| 7 |
AXIOME ASSOCIESaxiomeassocies.fr
Regional accounting firm providing auditing, social management, wealth management, taxation, consulting, and IT engineering services to small and medium enterprise directors. |
151 | |||
| 8 |
Dalkia Air Solutionsdalkiaairsolutions.fr
Provides solutions for compressed air, nitrogen, and breathable air production, treatment, and networks, focusing on energy performance improvement for industrial and nuclear clients. |
138 | |||
| 9 |
Cerfrance Midi Méditerranéemidi-mediterranee.cerfrance.fr
It is a cooperative network providing accounting and consulting services to various sectors, emphasizing human governance and client success. |
136 | |||
| 10 |
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 | |||
| 11 |
Digit RE groupdigitregroup.com
Administrative and back office functions for real estate brands under LFPI and Artémis, including training and property services. |
106 | |||
| 12 |
SORECOgroupesoreco.fr
Specialized payroll and HR consulting for the transport sector, focusing on social charge savings, GDPR compliance, and TICPE reimbursement across France. |
81 | |||
| 13 |
VIGIPHARMvigipharm.fr
Specializing in health monitoring like pharmacovigilance, the company offers strategy development and surveillance services for pharmaceutical labs, founded in 1998 by Caroline Navarre |
72 | |||
| 14 |
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 | |||
| 15 |
Dimo Diagnosticdimo-diagnostic.net
DIMO Diagnostic specializes in certified real estate diagnostics for individuals and professionals, focusing on customer satisfaction through human-centered service delivery |
60 | |||
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 |
STEAM Francesteam.fr
Provides equipment, maintenance, software, and consultancy services for hygiene, washing, decontamination, and sterilization processes with personalized support. |
60 | |||
| 17 |
Office Notarial de Baillargues ONBonb-france.com
A multidisciplinary Notary Firm with over seventy employees, focusing on customer needs, quality services, innovation, and staff well-being |
50 | |||
| 18 |
Primum Non Nocereagenceprimum.fr
Support organizations in reducing environmental, social, and societal impacts through personalized solutions including RSE/RSO diagnostics, carbon audits, and eco-design. |
46 | |||
| 19 |
ROYER ROBIN Associésroyerrobin.com
Since 1995, this company provides tailored solutions in consulting, auditing, and training to improve individual and collective performance across various sectors and structures |
44 | |||
| 20 |
Groupe DMMgroupedmm.com
Develops human skills through tailor-made training programs and support initiatives for executives, managers, and employees to tackle professional challenges. |
43 | |||
| 21 |
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 | |||
| 22 |
Partnear.partnear.fr
A team of Audit, Consulting, and Accounting experts in Montpellier and Clermont l'Hérault, supporting ambitious entrepreneurs in achieving their projects |
24 | |||
| 23 |
Numalisnumalis.com
Numalis develops tools and ISO standards to enhance AI adoption by designing robust and explainable algorithms, particularly for safety-critical industries like transportation and healthcare |
24 | |||
| 24 |
P3G Ingénierie
A multidisciplinary engineering firm specializing in building design and construction, with expertise in sustainable practices and renewable energy Collaborates with architects for shared projects |
20 | |||
| 25 |
Artebaaplus-architecture.com
Specializing in site management, Arteba provides coordination and project management services for public and private clients and architects since 1977 |
20 | |||
| 26 |
SIPPRO - Solutions IP Protectionsippro.fr
Specializing in innovative IP security solutions, this French company offers a range of high-tech security software and hardware products, international projects, and expert team |
19 | |||
| 27 |
Egalité à la pageegalitealapage.com
Consulting and training firm specialized in supporting professionals involved in victim support and handling workplace violence situations through strategic advice and process implementation |
19 | |||
| 28 |
CVH - Compétences et Valorisation de l'Humaincvh34.com
CVH offers personalized HR solutions including recruitment, HR consulting, career transition, skills assessment, and training, with a focus on individualized support |
18 | |||
| 29 |
THEIS 360 AVOCATStheis360.fr
Legal support for healthcare professionals and business owners in structuring their practices, risk management, conflict resolution, and patient/customer disputes |
17 | |||
| 30 |
OVERSYSoversys.com
Established in 1994, this company offers top-notch translation and localization services for technical documents, software, and hardware for various industries |
16 | |||
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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
- 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
- IT services companies in the Hérault department 53
- 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
- Professional services firms in France 6,611
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- Professional services firms in Auvergne-Rhône-Alpes 711
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- Professional services firms in the Gironde department 151
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