# 26 leading data and analytics companies in the Loire-Atlantique department
Tamtam tracks 26 data and analytics companies headquartered in the Loire-Atlantique department. This list ranks all of them by number of employees on LinkedIn, led by 饾棜饾棙饾棦饾棛饾棞饾棫, ASI 庐 and Compas. Their median headcount is 38. Half of them were founded in 2006 or later. The most common headquarters are Nantes (19) and Saint-Herblain (4).
The data and analytics sector in Loire-Atlantique includes a mix of established firms and younger companies, with a notable presence of software development and IT services. Companies like GEOFIT (1,157 employees) specialize in geographical databases, while ASI (590 employees) focuses on responsible digital solutions. Lengow (177 employees) offers e-commerce automation, and proLogistik France (114 employees) provides supply chain software. Smartway (104 employees) develops AI for food waste reduction, and A5sys (92 employees) works in business intelligence.
The headquarters are primarily clustered in Nantes and Saint-Herblain, indicating these cities as key centers for data and analytics activities in the region. The sector also shows a blend of industries, from space research and technology with GEOFIT to farming with Weenat, which provides mobile solutions for agricultural decision-making using weather and soil data.
馃嚝馃嚪 Loire-Atlantique 路 26 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [饾棜饾棙饾棦饾棛饾棞饾棫](https://www.tamtam.ai/c/company-nantes) (geofit.fr)
Designing geographical databases, securing land processes for private and development projects, producing national cartography, developing agriculture, and managing natural resources. | Space Research and Technology | 馃嚝馃嚪 Nantes | 1,157 | 1968 |
| 2 | [ASI 庐](https://www.tamtam.ai/c/asi) (asi.fr)
Working towards a responsible digital world dedicated to serving humanity | IT Services and IT Consulting | 馃嚝馃嚪 Saint-Herblain | 590 | 1993 |
| 3 | [Compas](https://www.tamtam.ai/c/compas) (lecompas.fr)
Specializing in social observation of territories, creating observatories, conducting studies, and providing training for local governments to address social realities effectively | Research Services | 馃嚝馃嚪 Nantes | 182 | 1996 |
| 4 | [Lengow](https://www.tamtam.ai/c/lengow) (lengow.com)
E-commerce automation solution enabling brands to improve performance, automate processes, and expand internationally by integrating with 200+ marketplaces and 1,400+ channels | Software Development | 馃嚝馃嚪 Nantes | 177 | 2009 |
| 5 | [proLogistik France (DSIA)](https://www.tamtam.ai/c/prologistik-france-dsia) (logistar-dsia.com)
French subsidiary of a pan-European group, publishing, integrating, and hosting supply chain solutions, including WMS, OMS, LMS, TMS, ensuring optimal security and accessibility. | Software Development | 馃嚝馃嚪 Nantes | 114 | 1985 |
| 6 | [Smartway](https://www.tamtam.ai/c/smartway) (smartway.ai)
Development of AI-based system helping stores identify soon-to-expire food products, enabling discounts or donations to reduce waste and increase profits. | Retail Groceries | 馃嚝馃嚪 Saint-Herblain | 104 | 2012 |
| 7 | [A5sys](https://www.tamtam.ai/c/a5sys) (a5sys.com)
Founded in 2001, the company specializes in IT services focusing on business intelligence, databases, and application development | IT Services and IT Consulting | 馃嚝馃嚪 Saint-Herblain | 92 | 2001 |
| 8 | [PerformanSe](https://www.tamtam.ai/c/performanse) (performanse.com)
A leader in behavioral and cognitive skills assessments, providing innovative solutions for HR professionals in recruitment, talent management, and vocational guidance | Software Development | 馃嚝馃嚪 Nantes | 86 | 1988 |
| 9 | [Weenat](https://www.tamtam.ai/c/weenat) (weenat.com)
Weenat provides simple, mobile, and connected solutions for farmers, using weather and soil data to optimize decision-making from planting to harvest | Farming | 馃嚝馃嚪 Nantes | 69 | 2014 |
| 10 | [Meteodyn](https://www.tamtam.ai/c/meteodyn) (meteodyn.com)
The company specializes in wind engineering, meteorology, and climatology, offering software solutions and services for renewable energy, infrastructure, and climate change adaptation | Software Development | 馃嚝馃嚪 Saint-Herblain | 69 | 2003 |
| 11 | [Virage Group](https://www.tamtam.ai/c/virage-group) (viragegroup.com)
Provides management solutions to centralize strategic plans, evaluate progress, and manage project portfolios, ensuring investments generate expected value and support decision-making. | Software Development | 馃嚝馃嚪 Nantes | 50 | 2001 |
| 12 | [Guest Suite](https://www.tamtam.ai/c/guest-suite) (guest-suite.com)
Guest Suite provides a comprehensive solution for managing local visibility through presence and review management, helping brands optimize online information, analyze reputation, and collect and respond to customer reviews | IT Services and IT Consulting | 馃嚝馃嚪 Nantes | 48 | 2013 |
| 13 | [Ospharm](https://www.tamtam.ai/c/ospharm) (ospharm.com)
A cooperative established by pharmacists 30 years ago to develop pharmacy-focused digital tools, evolving to focus on future industry advancements | Pharmaceutical Manufacturing | 馃嚝馃嚪 Saint-Nazaire | 38 | 1981 |
| 14 | [TOOVALU](https://www.tamtam.ai/c/toovalu) (toovalu.com)
Leader in Climate & CSR strategy software, Toovalu Impact supports clients and stakeholders in their RSE & Climate initiatives, focusing on sustainability and progress | Software Development | 馃嚝馃嚪 Nantes | 38 | 2012 |
| 15 | [Insights DBM](https://www.tamtam.ai/c/insights-dbm) (dbm-vi.eu)
With over 25 years of experience, Veterinary Insights specializes in transforming data into actionable insights for the animal health industry through various business information services | Software Development | 馃嚝馃嚪 Nantes | 37 | 1996 |
| 16 | [EDICIA](https://www.tamtam.ai/c/edicia) (edicia.fr)
EDICIA provides integrated solutions for over 250 French cities to enhance public safety policies, optimize performance, share data, and deliver immediate citizen benefits | Software Development | 馃嚝馃嚪 Nantes | 36 | 2003 |
| 17 | [Aquasys](https://www.tamtam.ai/c/aquasys) (aquasys.fr)
Water Resource Management Systems provider helping national and local authorities, soft drink industry, and farmers optimize water usage in the face of climate change | Software Development | 馃嚝馃嚪 Port-Saint-P猫re | 30 | 2006 |
| 18 | [Impact Track](https://www.tamtam.ai/c/impact-track) (impacttrack.org)
A digital platform enabling investors and entrepreneurs to measure, manage, and communicate social and environmental impact effectively | Non-profit Organizations | 馃嚝馃嚪 Nantes | 17 | 2019 |
| 19 | [Zetaly](https://www.tamtam.ai/c/zetaly) (zetaly.io)
Software editor providing a data platform that helps businesses extract insights, improve performance, optimize resources, and reduce costs. | Software Development | 馃嚝馃嚪 Nantes | 16 | 2006 |
| 20 | [Infineo fait maintenant partie de la soci茅t茅 Sage !](https://www.tamtam.ai/c/infineo-fait-maintenant-partie-de-la-societe-sage) (sage.com)
A provider of decision support reporting solutions on Excel, covering the full reporting chain for SMEs with a focus on finance and accounting | Software Development | 馃嚝馃嚪 La Chapelle-sur-Erdre | 16 | |
| 21 | [Captain Data](https://www.tamtam.ai/c/captain-data) (captaindata.com)
It provides real-time intent data through an API, enhancing SalesTech tools and strategies for smarter sales and business growth. | Technology, Information and Internet | 馃嚝馃嚪 Nantes | 14 | 2019 |
| 22 | [GREENSPECTOR](https://www.tamtam.ai/c/greenspector) (greenspector.com)
Provider of energy efficiency solutions for mobile and IoT applications, improving battery life, performance, and user experience for major European and Asian companies | IT Services and IT Consulting | 馃嚝馃嚪 Nantes | 11 | 2010 |
| 23 | [Sweet Show](https://www.tamtam.ai/c/sweet-show) (sweetshow.io)
Digital platform transforming standard documents into interactive presentations to improve collaboration between marketing and sales teams for better customer experience. | Software Development | 馃嚝馃嚪 Nantes | 10 | 2015 |
| 24 | [ECOMER Data](https://www.tamtam.ai/c/ecomer-data) (ecomer-data.fr)
ECOMER DATA, part of the MARINELEC Group, supports maritime industry transformation by providing integrated data collection and analysis solutions for eco-friendly operations | Data Infrastructure and Analytics | 馃嚝馃嚪 Nantes | 9 | |
| 25 | [Mixity](https://www.tamtam.ai/c/mixity) (mixity.io)
Digital solution measuring and managing diversity and inclusion across gender, disability, generations, culture, and LGBTQ+ with data-driven insights and recommendations. | Business Consulting and Services | 馃嚝馃嚪 Nantes | 4 | 2019 |
| 26 | [DataGrowb'](https://www.tamtam.ai/c/datagrowb) (datagrowb.com)
DataGrowb' is at the forefront of innovative and disruptive technologies, specializing in data and AI solutions for various industries | Software Development | 馃嚝馃嚪 Nantes | 4 | |
## 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.
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- [Data and analytics companies in Hauts-de-France](https://www.tamtam.ai/l/data-analytics-companies-hauts-de-france) (48)
- [Data and analytics companies in the Nord department](https://www.tamtam.ai/l/data-analytics-companies-nord) (45)
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## The same list elsewhere
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- [Data and analytics companies in Europe](https://www.tamtam.ai/l/data-analytics-companies-in-europe) (2,591)
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Source: https://www.tamtam.ai/l/data-analytics-companies-loire-atlantique