# List of Software Development companies in the Seine-Maritime department
Tamtam tracks 28 Software Development companies headquartered in the Seine-Maritime department. This list ranks all of them by number of employees on LinkedIn, led by LEO, La Halle aux Chaussures and Trace Software. Their median headcount is 13. Half of them were founded in 2014 or later. The most common headquarters are Rouen (8), Mont-Saint-Aignan (4) and Le Havre (3).
The software development companies in Seine-Maritime include a mix of established firms and younger companies, specializing in various software solutions. LEO, founded in 1921, develops management software for pharmacies. Trace Software, established in 1987, is active in CAD & CAE software for industrial engineering. FTEL, founded in 1999, specializes in web and mobile software development. Wisper, founded in 2009, provides a centralized management solution for workstations. MeetGeek, a younger company from 2020, offers an AI-assisted platform for meeting productivity.
Most of these companies are small to mid-sized, with headcounts ranging from 11 to 125 employees. A notable pattern is the concentration of companies in urban areas, with Mont-Saint-Aignan, Rouen, and Le Havre appearing frequently as headquarters cities.
馃嚝馃嚪 Seine-Maritime 路 28 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [LEO](https://www.tamtam.ai/c/leo-mont-saint-aignan) (leo-officine.fr)
Provides innovative management software for pharmacies, leveraging Microsoft technologies to improve daily operations and profitability of pharmacy businesses. | Software Development | 馃嚝馃嚪 Mont-Saint-Aignan | 125 | 1921 |
| 2 | [La Halle aux Chaussures](https://www.tamtam.ai/c/la-halle-aux-chaussures)
Development and provision of computer software solutions, focusing on creating and distributing software products from Dieppe, France. | Software Development | 馃嚝馃嚪 Dieppe | 95 | |
| 3 | [Trace Software](https://www.tamtam.ai/c/trace-software) (trace-software.com)
Global leader in CAD & CAE software for industrial engineering, specializing in electrical design Empowering electrical solutions for manufacturing, energy, and transportation industries | Software Development | 馃嚝馃嚪 Saint-Romain-de-Colbosc | 85 | 1987 |
| 4 | [Enovea, votre partenaire logiciel](https://www.tamtam.ai/c/enovea-votre-partenaire-logiciel) (enovea.net)
Develops digital projects like 3D configurators and ERP integration. Publishes software for real-time matching, data reconciliation, and connected object data analysis. | Software Development | 馃嚝馃嚪 Mont-Saint-Aignan | 42 | 2008 |
| 5 | [FTEL](https://www.tamtam.ai/c/ftel) (ftel.fr)
Specialized in web & mobile software development since 1999, creating customized applications, offering hosting, maintenance services, and developing various software solutions | Software Development | 馃嚝馃嚪 Rouen | 35 | 1999 |
| 6 | [ELSYLOG](https://www.tamtam.ai/c/elsylog) (elsylog.com)
Manufacturer of electronic security and time management solutions including access control, alarm systems, video surveillance, visitor management, and key tracking | Software Development | 馃嚝馃嚪 D茅nestanville | 31 | 2012 |
| 7 | [Wisper](https://www.tamtam.ai/c/wisper) (wisper.io)
Provides centralized management solution for workstations combining simplicity, security, and flexibility with local virtual machine execution without server infrastructure dependency. | Software Development | 馃嚝馃嚪 Rouen | 31 | 2009 |
| 8 | [MeetGeek](https://www.tamtam.ai/c/meetgeek) (meetgeek.ai)
It is a platform that enhances meeting productivity through AI assistance, automation, and insights, helping teams improve efficiency and results. | Software Development | 馃嚝馃嚪 Eu | 27 | 2020 |
| 9 | [Caux Formatique](https://www.tamtam.ai/c/caux-formatique) (cauxformatique.fr)
Specialized in management software, providing implementation, training, and support services for accounting, sales, payroll systems to professional clients Also offers IT maintenance | Software Development | 馃嚝馃嚪 Sainte-Marie-des-Champs | 27 | 1988 |
| 10 | [AIMAIRA](https://www.tamtam.ai/c/aimaira) (aimaira.fr)
A company offering an ERP management software designed for higher education institutions, covering all operational needs and hosted on Microsoft Azure for security | Software Development | 馃嚝馃嚪 Mont-Saint-Aignan | 25 | 2015 |
| 11 | [KAYO](https://www.tamtam.ai/c/kayo) (kayo.fr)
Revolutionizing the event industry by leveraging documentation to generate leads, share content, and measure impact in real time | Software Development | 馃嚝馃嚪 Le Petit-Quevilly | 25 | 2012 |
| 12 | [Novatice Technologies](https://www.tamtam.ai/c/novatice-technologies) (novatice.com)
Novatice Technologies is a software solutions company specializing in innovative educational tools such as Edutice, Pyramid, Edutab, and Edutice Tablet Server | Software Development | 馃嚝馃嚪 Bois-Guillaume | 21 | 2004 |
| 13 | [KEYVEO](https://www.tamtam.ai/c/keyveo) (keyveo.com)
Specializing in virtual tours and immersive technologies, the company creates innovative digital projects for businesses, educational institutions, and municipalities with prestigious clients worldwide | Software Development | 馃嚝馃嚪 Le Petit-Quevilly | 13 | 2014 |
| 14 | [WinSPOT by Data Concept](https://www.tamtam.ai/c/winspot-by-data-concept) (winspot.com)
Specializes in developing the WinSPOT software suite for port and multimodal logistics chain management | Software Development | 馃嚝馃嚪 Le Havre | 13 | 1989 |
| 15 | [SellingAtHome](https://www.tamtam.ai/c/sellingathome) (sellingathome.com)
A SAAS software suite that helps direct selling brands modernize, optimize sales performance, and improve customer knowledge with white-label interfaces | Software Development | 馃嚝馃嚪 Le Havre | 11 | 2015 |
| 16 | [Neuroo](https://www.tamtam.ai/c/neuroo) (neuroo.ai)
The company specializes in utilizing AI-powered real-time analytics to optimize and leverage data from various sensors | Software Development | 馃嚝馃嚪 Le Petit-Quevilly | 11 | 2020 |
| 17 | [AGORINFO](https://www.tamtam.ai/c/agorinfo) (agorinfo.fr)
A computer software company located in France specializing in providing technology solutions and services | Software Development | 馃嚝馃嚪 Isneauville | 10 | |
| 18 | [ARTELIA DIGITAL SOLUTIONS](https://www.tamtam.ai/c/artelia-digital-solutions)
ARTELIA DIGITAL SOLUTIONS is a computer software company based in Le Havre, France, specializing in digital solutions and software development | Software Development | 馃嚝馃嚪 Le Havre | 10 | |
| 19 | [Groupe Trace](https://www.tamtam.ai/c/groupe-trace) (groupetrace.com)
The company specializes in software and processes for building (BIM) and energy through its five subsidiaries, offering innovative solutions for construction professionals worldwide | Software Development | 馃嚝馃嚪 Saint Romain de Colbosc | 8 | |
| 20 | [Emerit Science](https://www.tamtam.ai/c/emerit-science) (emeritscience.fr)
Development of AI-powered virtual assistants and platforms providing easy, secure access to vast, reliable scientific information for diverse users. | Software Development | 馃嚝馃嚪 Rouen | 7 | 2024 |
| 21 | [BusinessApp](https://www.tamtam.ai/c/businessapp) (businessapp.fr)
BusinessApp is a saas solution enabling professionals within a community to stay connected, buy products/services, generate opportunities, exchange, and receive business digitally | Software Development | 馃嚝馃嚪 Rouen | 6 | 2020 |
| 22 | [Alavance](https://www.tamtam.ai/c/alavance) (mybop.fr)
Simplify meal ordering with advance scheduling, bulk orders, and digital terminals Save time, avoid queues, discover new restaurants, and save money | Software Development | 馃嚝馃嚪 Rouen | 5 | 2017 |
| 23 | [Cosoft](https://www.tamtam.ai/c/cosoft) (cosoft.fr)
Cosoft provides a web & mobile platform to assist coworking space managers, offering support for various types of flexible workspaces | Software Development | 馃嚝馃嚪 Rouen | 5 | 1999 |
| 24 | [Miri Digital Concierge](https://www.tamtam.ai/c/miri-digital-concierge) (miri-booking.com)
A customizable e-concierge service for hotels, resorts, and campgrounds, offering easy access to local activities and booking experiences for travelers | Software Development | 馃嚝馃嚪 Rouen | 5 | 2017 |
| 25 | [Calysoft](https://www.tamtam.ai/c/calysoft) (calysoft.fr)
Company specialized in custom software development for professionals, from industrial to small businesses, public services, and municipalities Offers user-friendly, scalable, secure, and efficient solutions with personalized support | Software Development | 馃嚝馃嚪 脡pouville | 4 | 2014 |
| 26 | [Feazy](https://www.tamtam.ai/c/feazy) (feazy.fr)
Feazy simplifies, digitizes, manages, processes, and stores expense reports for businesses, ensuring legal compliance and quick entry via a user-friendly app | Software Development | 馃嚝馃嚪 Grand-Couronne | 3 | 2016 |
| 27 | [Expedy API Cloud Printer](https://www.tamtam.ai/c/expedy-api-cloud-printer) (expedy.io)
Development and distribution of plug-and-play connected printers with integrated APIs, serving catering, e-commerce, and logistics sectors. | Software Development | 馃嚝馃嚪 Rouen | 3 | 2015 |
| 28 | [DEV INFLUENCE](https://www.tamtam.ai/c/dev-influence) (getorisis.fr)
Software development company creating cloud-based ERP and CRM solutions integrated with business software, accounting tools, and field applications for continuous operational improvement. | Software Development | 馃嚝馃嚪 Mont-Saint-Aignan | 1 | 2011 |
## 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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Source: https://www.tamtam.ai/l/software-development-companies-seine-maritime