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List of consulting firms in the Hérault department

Tamtam tracks 39 consulting firms headquartered in the Hérault department. This list ranks the 30 largest by number of employees on LinkedIn, led by Biotope, Acelys Services Numériques and AXIOME ASSOCIES. Their median headcount is 30. Half of them were founded in 2008 or later. The most common headquarters are Montpellier (16), Lattes (3) and Castelnau-le-Lez (2).

🇫🇷 Hérault30 companiesUpdated Nov 11, 2026

The consulting firms in Hérault primarily cover IT services, environmental consulting, and accounting. Biotope, with 585 employees, specializes in ecological engineering. Acelys Services Numériques focuses on software development and cybersecurity, while AXIOME ASSOCIES offers accounting and IT engineering. Groupe ISIA is active in responsible digital transformation.

A common pattern among these firms is their founding dates. Most were established between the mid-1990s and the early 2010s, indicating a sector that has matured over the last few decades. Several companies, including devensys cybersecurity and Ziwit, are based in Montpellier, highlighting the city as a hub for these activities.

#CompanyIndustryHeadquarters EmployeesFounded
1
Biotopebiotope.fr

A leading French ecological engineering and nature conservation company with over 240 employees, 25 sites, operations in 40+ countries, and diverse services

Environmental Services 🇫🇷 Mèze 585 1993
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

Software Development 🇫🇷 Montpellier 175 1997
3
AXIOME ASSOCIESaxiomeassocies.fr

Regional accounting firm providing auditing, social management, wealth management, taxation, consulting, and IT engineering services to small and medium enterprise directors.

Accounting 🇫🇷 Jacou 151 1986
4
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.

Accounting 🇫🇷 Lattes 136 1960
5
Groupe ISIAgroupe-isia.com

This company specializes in responsible digital transformation services, including digital frescoes, web eco-design, accessibility audits, and carbon footprint measurement

IT Services and IT Consulting 🇫🇷 Saint-Mathieu-de-Tréviers 107 1996
6
devensys cybersecuritydevensys.com

French cybersecurity company, 13 years old, part of the Inherent group. Provides expert, quality, and ethical cybersecurity services with a 100% French guarantee.

Computer and Network Security 🇫🇷 Montpellier 93 2013
7
Synantosynanto.fr

This is a human-sized ESN offering stimulating missions, career development, and expert consulting services, primarily in banking, finance, and insurance sectors.

IT Services and IT Consulting 🇫🇷 Montpellier 82 2007
8
SORECOgroupesoreco.fr

Specialized payroll and HR consulting for the transport sector, focusing on social charge savings, GDPR compliance, and TICPE reimbursement across France.

Human Resources Services 🇫🇷 Montpellier 81 1992
9
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.

IT Services and IT Consulting 🇫🇷 Montpellier 68 1999
10
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.

Environmental Services 🇫🇷 Béziers 46 2009
11
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

Higher Education 🇫🇷 Lattes 44 1995
12
Groupe DMMgroupedmm.com

Develops human skills through tailor-made training programs and support initiatives for executives, managers, and employees to tackle professional challenges.

Professional Training and Coaching 🇫🇷 Saint-Aunès 43 1994
13
IOceaniocean.fr

Provides IT engineering, focusing on custom web software development, Intranets, Extranets, and management software, utilizing OpenSource solutions like Java and PHP.

IT Services and IT Consulting 🇫🇷 Montpellier 37 2001
14
MoveWORK Groupmovework.com

Offers a human-centric platform leveraging Big Data, AI, and IoT for coordinating facility services, improving quality of life at work and public places.

IT Services and IT Consulting 🇫🇷 Montpellier 32 2010
15
Ziwitziwit.com

A cybersecurity company offering training, audits, SSL certificates, and SaaS solutions to protect organizations from hacking and ensure compliance

Computer and Network Security 🇫🇷 Montpellier 30 2011

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16
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

Construction 🇫🇷 Montpellier 20 1992
17
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

Business Consulting and Services 🇫🇷 Montpellier 19 2016
18
Fruition Sciences - 360vitifruitionsciences.com

Offers data-based solutions and advice to winemakers and vineyard managers, promoting sustainable practices and helping understand yield and fruit quality drivers.

Farming 🇫🇷 Montpellier 15 2008
19
Groupe Élan (Cabinet d'études et de conseils)elangroupe.eu

For 20 years, a consulting firm based in Montpellier and La Réunion supports various entities in successful project management with multidisciplinary expertise

Engineering Services 🇫🇷 Montpellier 14 2003
20
JUBEA 🚀jubea.fr

Founded in 2012, JUBEA facilitates innovation for startups and companies by supporting strategic financing, structuring, and managing innovative projects

Business Consulting and Services 🇫🇷 Lattes 14 2012
21
Ingéviningevin.com

A leading design consultancy for wineries, specializing in modernization to improve quality, energy efficiency, and operational efficiency while securing optimal costs

Engineering Services 🇫🇷 Montpellier 13 1997
22
Rational Consultingrationalconsulting.fr

Optimize enterprise management through ERP, CRM, WMS software implementation and improvement, ensuring ROI in high-stakes business contexts.

Business Consulting and Services 🇫🇷 Montpellier 13 2010
23
La TeleScoplatelescop.fr

A cooperative company providing remote sensing, mapping, and support for public policies, specializing in spatial data for environmental and territorial planning

Environmental Services 🇫🇷 Castelnau-le-Lez 8 2018
24
2PN audit & expertise2pn-expertise.com

A multidisciplinary firm in Southern France providing tailored accounting, auditing, and consulting services to businesses of all sizes and stages

Accounting 🇫🇷 Vendres 7 2017
25
LORANGlorang-innovation.com

A French service company specializing in innovative project engineering under European funding programs, offering guidance, proposal writing, project management, and partnership services

Management Consulting 🇫🇷 Montpellier 7 1996
26
Innovadrinks SASinnovadrinks.com

Innovadrinks supports projects and startups in the innovative beverage market, providing project audits, formulation, technical support, and production services They also assist in financing

Food and Beverage Manufacturing 🇫🇷 Saint-Clément-De-Rivière 7 2018
27
Opensopen-s.fr

The company specializes in quality management, skill development, digitalization for organizations, and professional guidance, action planning, and change management for individuals

Business Consulting and Services 🇫🇷 Castelnau-le-Lez 6 2019
28
Hortus Technologieshortus-technologies.com

Designs high-performance, reliable embedded electronics, radio frequency, and IoT solutions. Supports companies from feasibility to industrialization, considering all product lifecycle aspects.

Engineering Services 🇫🇷 Montpellier 6 2022
29
GA Solutionsga-solutions.com

The company offers coaching services to individuals and teams in professional, managerial, and organizational contexts, focusing on creating sustainable and holistic development

Business Consulting and Services 🇫🇷 Baillargues 4 2016
30
10gital10gital.fr

Support companies in defining digital strategies, evolving production and communication tools, and providing web training for digital transformation.

Technology, Information and Internet 🇫🇷 Saint-Jean-de-Védas 4 2016

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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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