The SaaS companies in Essonne are primarily software development and IT services firms. Companies such as Infovista, with 834 employees, focus on network performance solutions, while MyUnisoft (242 employees) develops collaborative accounting platforms. iObeya (156 employees) transforms physical workspaces into digital environments, and MEDIA IMMO (200 employees) provides digital solutions for real estate professionals. Olfeo (50 employees) specializes in internet content filtering, and Cyberwatch (42 employees) offers cybersecurity solutions.
Many of these companies, like Infovista, MyUnisoft, iObeya, Aprovall, Olfeo, and Cyberwatch, are headquartered in Massy, indicating a concentration of SaaS businesses in this city within Essonne. The founding dates span from 1995 (Infovista) to 2023 (Sylq), showing a mix of established firms and newer ventures.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Infovistainfovista.com
Empowers service providers and enterprises with data-driven solutions for optimizing network performance, enhancing customer experience, and driving business success. |
834 | |||
| 2 | 254 | ||||
| 3 | 242 | ||||
| 4 |
MEDIA IMMOmedia-immo.fr
Provides digital solutions for generating risk reports and urban planning documents specifically designed for real estate professionals. |
200 | |||
| 5 |
iObeyaiobeya.com
Transforms physical workspaces into immersive, collaborative digital environments for sharing KPIs, plans, and ideas, fostering collective intelligence and quick decision-making. |
156 | |||
| 6 | 67 | ||||
| 7 |
Aprovallaprovall.com
Comprehensive third-party lifecycle management platform supporting evaluation, onboarding, monitoring, and off-boarding across legal, finance, cybersecurity, and ethics domains. |
61 | |||
| 8 | 50 | ||||
| 9 |
Cyberwatchcyberwatch.fr
French cybersecurity solutions provider, specializing in vulnerability and compliance management, offering penetration testing services and job opportunities. |
42 | |||
| 10 |
ISIisicrunch.com
Development of SaaS platforms enabling publishers to create accessible, enriched digital textbooks and e-learning modules for learners with disabilities. |
41 | |||
| 11 |
Coffreocoffreo.biz
The company provides HR dematerialization services for BtoB and BtoC customers, offering savings, environmental benefits, and secure storage for important documents |
40 | |||
| 12 |
Interact Softwareinteract-software.com
This French company specializes in End User Experience and Digital Experience Management solutions for large organizations, aiming to improve user satisfaction and optimize IT assets |
29 | |||
| 13 |
AMPHITRITEamphitrite.fr
Specialized in advanced satellite and in-situ data processing for maritime decision-making, offering solutions for green shipping, defense, and environmental applications through end-user products. |
23 | |||
| 14 |
DAMAaaSdamaaas.com
INAGUA offers DAMAaaS, a platform for custom business applications with no coding, enabling efficient workflow collaboration, document management, and data security |
22 | |||
| 15 |
SpinalComspinalcom.com
Develops sovereign software for building and infrastructure management. Its platform optimizes spaces, maintenance, energy, and unifies fragmented building data for smart operations. |
21 | |||
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| 16 |
WAVESOFTwavesoft.fr
French software publisher specializing in management software for small to medium-sized businesses in Trade, Services, and Light Industry sectors Offers nine software modules |
21 | |||
| 17 |
Immanensimmanens.com
Immanens is a young company focused on electronic information services, offering innovative software products, business services, and project development support |
21 | |||
| 18 | 20 | ||||
| 19 |
Dir IPSdirips.com
Development of IT solutions for healthcare, social, and medico-social sectors focusing on budgeting, staffing, user tracking, and regulatory compliance. |
19 | |||
| 20 |
AFIDIUMafidium.com
Afidium provides innovative B2B solutions for businesses in the tourism sector, optimizing revenue and profitability across Europe with tailor-made solutions |
17 | |||
| 21 |
API - Advanced Prologue Innovationapi-sas.fr
A digital transition partner specializing in electronic invoices, EDIFACT exchanges, Chorus Pro integration, and electronic signature solutions for businesses of all sizes |
15 | |||
| 22 |
e-Attestations.come-attestations.com
Provides online platform for secure digital attestations, enabling individuals and organizations to verify and certify documents efficiently and reliably. |
14 | |||
| 23 |
ACKOMASackomas.com
Provides automated SaaS solutions for medical device manufacturers and professionals, ensuring seamless regulatory compliance across global databases like EUDAMED, GUDID, and SFDA. |
14 | |||
| 24 | 13 | ||||
| 25 |
CODRA | INDUSTRIE | COOX MESindustry.codra.net
Development and provision of innovative industrial software solutions supporting production monitoring, quality assurance, traceability, and continuous improvement for manufacturers. |
12 | |||
| 26 |
Express-Mailingexpress-mailing.com
Express-Mailing庐 offers user-friendly marketing tools for managing email, fax, SMS, and voice campaigns securely, with simple interfaces for real-time tracking |
11 | |||
| 27 |
Adentsantaresvisiongroup.com
A leading provider of serialization solutions for product identification and traceability in the pharmaceutical industry, helping companies comply with regulations |
11 | |||
| 28 |
AXISCOPEaxiscope.com
French software publisher offering collaborative solution for digitalizing procurement & supplier quality processes globally, enhancing purchasing efficiency, supplier relations & quality management |
10 | |||
| 29 | 10 | ||||
| 30 | 9 | ||||
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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 Essonne department
- The largest companies in the Essonne department 1,149
- Companies with in-house R&D in the Essonne department 198
- Multinational companies in the Essonne department 156
- Manufacturers in the Essonne department 127
- Hardware manufacturers in the Essonne department 114
- Distributors and wholesalers in the Essonne department 76
- IT Services and IT Consulting companies in the Essonne department 70
- Professional services firms in the Essonne department 68
- Public sector organisations in the Essonne department 66
- Aerospace and defence companies in the Essonne department 65
- IT services companies in the Essonne department 60
- Retail chains in the Essonne department 59
- Construction companies in the Essonne department 56
- Software Development companies in the Essonne department 51
- Pharmaceutical companies in the Essonne department 45
- Electronics and semiconductor companies in the Essonne department 44
- Research institutes in the Essonne department 42
- Events Services companies in the Essonne department 41
- Consulting firms in the Essonne department 40
- Family-owned companies in the Essonne department 38
- Contract manufacturers in the Essonne department 35
- Research Services companies in the Essonne department 35
- Critical infrastructure operators in the Essonne department 32
- Education providers in the Essonne department 30
The same list elsewhere in France
- SaaS companies in 脦le-de-France 2,859
- SaaS companies in Auvergne-Rh么ne-Alpes 476
- SaaS companies in the Hauts-de-Seine department 389
- SaaS companies in Occitanie 317
- SaaS companies in Provence-Alpes-C么te d'Azur 285
- SaaS companies in the Rh么ne department 284
- SaaS companies in Nouvelle-Aquitaine 236
- SaaS companies in Grand Est 216
- SaaS companies in Hauts-de-France 194
- SaaS companies in Pays de la Loire 180
- SaaS companies in the Nord department 163
- SaaS companies in the Haute-Garonne department 147
- SaaS companies in the Bouches-du-Rh么ne department 146
- SaaS companies in the Gironde department 141
- SaaS companies in the Loire-Atlantique department 135
- SaaS companies in Brittany 128
- SaaS companies in the H茅rault department 110
- SaaS companies in the Ille-et-Vilaine department 85
- SaaS companies in Paris 2,218
- SaaS companies in Lyon 211
- SaaS companies in Lille 104
- SaaS companies in Toulouse 102
- SaaS companies in Nantes 90
- SaaS companies in Bordeaux 88