# Top 30 subscription businesses in the Loire-Atlantique department
Tamtam tracks 61 subscription businesses headquartered in the Loire-Atlantique department. This list ranks the 30 largest by number of employees on LinkedIn, led by RCA, MCI SAS and Akeneo. Their median headcount is 93. Half of them were founded in 2001 or later. The most common headquarters are Nantes (17), Saint-Herblain (4) and Carquefou (3).
The subscription businesses in Loire-Atlantique are mostly software development firms, alongside companies in manufacturing, training, and insurance. They range from large groups like RCA, which develops accounting software, and MCI SAS, specializing in refrigeration equipment, to mid-sized firms such as Akeneo, providing product experience management software, and Germe, offering management training.
A notable pattern is the concentration of these businesses in Nantes and its surrounding communes. Most of the companies listed were founded between the late 1990s and the early 2010s, indicating a period of significant growth for subscription-based models in the region.
馃嚝馃嚪 Loire-Atlantique 路 30 companies 路 Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [RCA](https://www.tamtam.ai/c/rca) (rca.fr)
Develops innovative software solutions for accounting professionals and their clients, streamlining management, advisory services, and digital transition for accounting firms. | Software Development | 馃嚝馃嚪 Saint-Herblain | 1,626 | 1999 |
| 2 | [MCI SAS](https://www.tamtam.ai/c/mci-sas) (mci.fr)
This company specializes in commercial and industrial refrigeration, climate engineering, and energy performance optimization for installations across various sectors. | HVAC and Refrigeration Equipment Manufacturing | 馃嚝馃嚪 Carquefou | 1,106 | 1963 |
| 3 | [Akeneo](https://www.tamtam.ai/c/akeneo) (akeneo.com)
Empowering business leaders with software, education, and community for product experience management. Offering intelligent Product Cloud for data enrichment, management, and syndication. | Software Development | 馃嚝馃嚪 Nantes | 427 | 2013 |
| 4 | [Germe, le r茅seau de progr猫s des managers](https://www.tamtam.ai/c/germe-le-reseau-de-progres-des-managers) (germe.com)
An organization providing training in management for executive leaders and managers to foster collective intelligence and innovative organizational practices | Professional Training and Coaching | 馃嚝馃嚪 Nantes | 420 | 1998 |
| 5 | [Je Bosse en Grande Distribution](https://www.tamtam.ai/c/je-bosse-en-grande-distribution) (jebosseengrandedistribution.fr)
Leading online platform and network for mass retail sector professionals focused on sharing industry insights, career opportunities, and community engagement initiatives. | Online Audio and Video Media | 馃嚝馃嚪 Nantes | 340 | 2011 |
| 6 | [ARP脠GE SAS](https://www.tamtam.ai/c/arpege-sas) (arpege.fr)
Provides innovative digital solutions for local governments, focusing on population management, decision systems, and e-service platforms to enhance citizen experience. | Software Development | 馃嚝馃嚪 Saint-S茅bastien-sur-Loire | 331 | 1989 |
| 7 | [Proginov](https://www.tamtam.ai/c/proginov) (proginov.com)
French publisher of cloud-hosted management software and ERP solutions specializing in industrial, distribution, and healthcare sectors with dedicated secure data hosting services. | Software Development | 馃嚝馃嚪 La Chevroli猫re | 283 | 1996 |
| 8 | [Obat](https://www.tamtam.ai/c/obat) (obat.fr)
Specialized invoicing software designed for contractors and self-employed individuals within the construction sector Streamlining financial processes and improving efficiency | Software Development | 馃嚝馃嚪 Nantes | 274 | 2019 |
| 9 | [Suravenir Assurances](https://www.tamtam.ai/c/suravenir-assurances) (suravenir-assurances.fr)
Designs and manages insurance products covering automobile, home, health, and personal risk with high customer satisfaction and recognized quality. | Insurance | 馃嚝馃嚪 Saint-Herblain | 253 | 1996 |
| 10 | [Editions ENI](https://www.tamtam.ai/c/editions-eni) (editions-eni.fr)
Creation and publishing of IT training materials including printed and digital books, course supports, and online e-learning for all skill levels. | Book and Periodical Publishing | 馃嚝馃嚪 Saint-Herblain | 187 | 1981 |
| 11 | [IMA PROTECT](https://www.tamtam.ai/c/ima-protect) (imaprotect.com)
Company provides remote monitoring services to protect families, homes, and valuables, focusing on risk prevention and simplifying security. | Individual and Family Services | 馃嚝馃嚪 Nantes | 177 | |
| 12 | [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 |
| 13 | [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 |
| 14 | [Wiztivi](https://www.tamtam.ai/c/wiztivi) (wiztivi.com)
Empowering telecom, media, and content providers to deliver next-generation entertainment experiences through cutting-edge video applications and a world-class cloud gaming solution. | Software Development | 馃嚝馃嚪 Carquefou | 98 | 2007 |
| 15 | [MyScript](https://www.tamtam.ai/c/myscript) (myscript.com)
Leader in real-time handwriting recognition using AI, offering interactive ink technology for digital content creation across various industries Innovating natural human-machine interfaces | Software Development | 馃嚝馃嚪 Nantes | 93 | 1998 |
| 16 | [Operis](https://www.tamtam.ai/c/operis) (web.operis.fr)
Operis specializes in digital solutions for French local authorities in urban planning, land management, heritage, and education, aiming to improve services for citizens and stakeholders | Software Development | 馃嚝馃嚪 Orvault | 89 | 2009 |
| 17 | [Mercuria](https://www.tamtam.ai/c/mercuria) (mercuria.fr)
Advises and supports businesses with SaaS, Cloud, or hosted solutions for accounting, financial, payroll, and HR management software, working with reliable publishers. | Software Development | 馃嚝馃嚪 La Chapelle-sur-Erdre | 82 | 1999 |
| 18 | [PRIOS GROUPE](https://www.tamtam.ai/c/prios-groupe) (prios.fr)
PRIOS Group specializes in developing industry-specific software for the agri-food and personal equipment sectors, offering ERP solutions, services, and complementary modules for businesses globally | Software Development | 馃嚝馃嚪 Carquefou | 77 | 1990 |
| 19 | [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 |
| 20 | [SITACI](https://www.tamtam.ai/c/sitaci) (sitaci.fr)
Supply Chain Solution specialist with over 30 years of expertise in logistics, offering innovative WMS EGO software implemented in 520+ sites globally | Software Development | 馃嚝馃嚪 Haute Goulaine | 66 | 1987 |
| 21 | [Costructor](https://www.tamtam.ai/c/costructor) (costructor.co)
Costructor is the first all-in-one software for managing construction businesses on mobile or PC, offering comprehensive solutions for the industry | Software Development | 馃嚝馃嚪 Nantes | 64 | 2022 |
| 22 | [Almeria Solutions Informatiques](https://www.tamtam.ai/c/almeria-solutions-informatiques) (almeria.fr)
Provides IT management, software, and infrastructure solutions for SMEs in Grand Ouest. Focuses on productivity, simplicity, security, and tailored offerings for clients. | IT Services and IT Consulting | 馃嚝馃嚪 Les Sorini猫res | 54 | 1985 |
| 23 | [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 |
| 24 | [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 |
| 25 | [CEDREO](https://www.tamtam.ai/c/cedreo) (cedreo.com)
3D home design software for builders, contractors, and designers Creates efficient design presentations, 2D/3D floor plans, and photorealistic renderings to streamline sales processes | Software Development | 馃嚝馃嚪 Saint-Herblain | 44 | 2005 |
| 26 | [Shiptify](https://www.tamtam.ai/c/shiptify) (shiptify.com)
A collaborative platform that simplifies and speeds up air/sea/road transportation management, enabling smarter decision-making and significant time and cost savings in logistics | Transportation, Logistics, Supply Chain and Storage | 馃嚝馃嚪 Nantes | 41 | 2016 |
| 27 | [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 |
| 28 | [Altior](https://www.tamtam.ai/c/altior) (altior.fr)
Offers comprehensive SAAS ERP software, making business management simpler and more economical for industrial SMEs, covering purchases, sales, inventory, and accounting. | Software Development | 馃嚝馃嚪 Nantes | 38 | 2019 |
| 29 | [AGM Informatique](https://www.tamtam.ai/c/agm-informatique-nantes) (agm-informatique.com)
Software publisher specializing in solutions for medical and medico-social establishments Offers tools for optimizing management, HR planning, and resident information Prioritizes client needs and industry trends | Software Development | 馃嚝馃嚪 Nantes | 38 | 1997 |
| 30 | [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 |
## 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.
## More company lists in the Loire-Atlantique department
- [The largest companies in the Loire-Atlantique department](https://www.tamtam.ai/l/largest-companies-loire-atlantique) (2,044)
- [Companies with in-house R&D in the Loire-Atlantique department](https://www.tamtam.ai/l/r-and-d-companies-loire-atlantique) (207)
- [Retail chains in the Loire-Atlantique department](https://www.tamtam.ai/l/retail-chains-loire-atlantique) (162)
- [Multinational companies in the Loire-Atlantique department](https://www.tamtam.ai/l/multinational-companies-loire-atlantique) (159)
- [Professional services firms in the Loire-Atlantique department](https://www.tamtam.ai/l/professional-services-firms-loire-atlantique) (158)
- [Software Development companies in the Loire-Atlantique department](https://www.tamtam.ai/l/software-development-companies-loire-atlantique) (137)
- [SaaS companies in the Loire-Atlantique department](https://www.tamtam.ai/l/saas-companies-loire-atlantique) (135)
- [IT services companies in the Loire-Atlantique department](https://www.tamtam.ai/l/it-services-companies-loire-atlantique) (130)
- [Manufacturers in the Loire-Atlantique department](https://www.tamtam.ai/l/manufacturers-loire-atlantique) (125)
- [IT Services and IT Consulting companies in the Loire-Atlantique department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-loire-atlantique) (110)
- [Consulting firms in the Loire-Atlantique department](https://www.tamtam.ai/l/consulting-firms-loire-atlantique) (94)
- [Distributors and wholesalers in the Loire-Atlantique department](https://www.tamtam.ai/l/distributors-and-wholesalers-loire-atlantique) (94)
- [Hardware manufacturers in the Loire-Atlantique department](https://www.tamtam.ai/l/hardware-companies-loire-atlantique) (86)
- [Business Consulting and Services companies in the Loire-Atlantique department](https://www.tamtam.ai/l/business-consulting-and-services-companies-loire-atlantique) (83)
- [Public sector organisations in the Loire-Atlantique department](https://www.tamtam.ai/l/public-sector-organisations-loire-atlantique) (80)
- [Family-owned companies in the Loire-Atlantique department](https://www.tamtam.ai/l/family-owned-companies-loire-atlantique) (71)
- [Education providers in the Loire-Atlantique department](https://www.tamtam.ai/l/education-companies-loire-atlantique) (68)
- [Real Estate companies in the Loire-Atlantique department](https://www.tamtam.ai/l/real-estate-companies-loire-atlantique) (67)
- [Financial services firms in the Loire-Atlantique department](https://www.tamtam.ai/l/financial-services-firms-loire-atlantique) (65)
- [Law Practice companies in the Loire-Atlantique department](https://www.tamtam.ai/l/law-practice-companies-loire-atlantique) (62)
- [Retail companies in the Loire-Atlantique department](https://www.tamtam.ai/l/retail-companies-loire-atlantique) (61)
- [Critical infrastructure operators in the Loire-Atlantique department](https://www.tamtam.ai/l/critical-infrastructure-operators-loire-atlantique) (58)
- [Events Services companies in the Loire-Atlantique department](https://www.tamtam.ai/l/events-services-companies-loire-atlantique) (58)
- [Construction companies in the Loire-Atlantique department](https://www.tamtam.ai/l/construction-companies-loire-atlantique) (57)
## The same list elsewhere in France
- [Subscription businesses in France](https://www.tamtam.ai/l/subscription-businesses-france) (2,405)
- [Subscription businesses in 脦le-de-France](https://www.tamtam.ai/l/subscription-businesses-ile-de-france) (1,359)
- [Subscription businesses in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/subscription-businesses-auvergne-rhone-alpes) (234)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Subscription businesses in the Rh么ne department](https://www.tamtam.ai/l/subscription-businesses-rhone) (149)
- [Subscription businesses in Occitanie](https://www.tamtam.ai/l/subscription-businesses-occitanie) (140)
- [Subscription businesses in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/subscription-businesses-provence-alpes-cote-dazur) (136)
- [Subscription businesses in Grand Est](https://www.tamtam.ai/l/subscription-businesses-grand-est) (117)
- [Subscription businesses in Nouvelle-Aquitaine](https://www.tamtam.ai/l/subscription-businesses-nouvelle-aquitaine) (97)
- [Subscription businesses in Pays de la Loire](https://www.tamtam.ai/l/subscription-businesses-pays-de-la-loire) (89)
- [Subscription businesses in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/subscription-businesses-bouches-du-rhone) (79)
- [Subscription businesses in Hauts-de-France](https://www.tamtam.ai/l/subscription-businesses-hauts-de-france) (79)
- [Subscription businesses in the Haute-Garonne department](https://www.tamtam.ai/l/subscription-businesses-haute-garonne) (63)
- [Subscription businesses in the Nord department](https://www.tamtam.ai/l/subscription-businesses-nord) (61)
- [Subscription businesses in Brittany](https://www.tamtam.ai/l/subscription-businesses-brittany) (60)
- [Subscription businesses in the Gironde department](https://www.tamtam.ai/l/subscription-businesses-gironde) (52)
- [Subscription businesses in the Ille-et-Vilaine department](https://www.tamtam.ai/l/subscription-businesses-ille-et-vilaine) (45)
- [Subscription businesses in the H茅rault department](https://www.tamtam.ai/l/subscription-businesses-herault) (44)
- [Subscription businesses in Paris](https://www.tamtam.ai/l/subscription-businesses-paris) (1,004)
- [Subscription businesses in Lyon](https://www.tamtam.ai/l/subscription-businesses-lyon) (112)
- [Subscription businesses in Boulogne-Billancourt](https://www.tamtam.ai/l/subscription-businesses-boulogne-billancourt) (43)
- [Subscription businesses in Toulouse](https://www.tamtam.ai/l/subscription-businesses-toulouse) (39)
- [Subscription businesses in Nantes](https://www.tamtam.ai/l/subscription-businesses-nantes) (37)
- [Subscription businesses in Bordeaux](https://www.tamtam.ai/l/subscription-businesses-bordeaux) (35)
## The same list elsewhere
- [Subscription businesses in the world](https://www.tamtam.ai/l/subscription-businesses-in-the-world) (11,417)
- [Subscription businesses in Europe](https://www.tamtam.ai/l/subscription-businesses-in-europe) (5,640)
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Source: https://www.tamtam.ai/l/subscription-businesses-loire-atlantique