Interstis
Interstis Solutions is a French SaaS company that publishes the Hexagone sovereign collaborative suite — a SecNumCloud-hosted Microsoft 365 alternative used by 1,600+ French public-sector, healthcare, education, enterprise, and non-profit clients across 800,000+ users.
- Company typePrivate
- Founded2014
- HeadquartersLe Creusot, France
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Interstis does
Interstis Solutions is a privately held French SaaS company founded in 2014, headquartered in the Douai / Le Creusot region, that publishes the Hexagone collaborative suite — a sovereign, SecNumCloud-hosted workspace positioned as a French alternative to Microsoft 365 and Google Workspace for public sector and regulated organizations. The platform is built around more than eleven interconnected modules including electronic document management (GED), a collaborative office suite with real-time co-editing, end-to-end encrypted instant messaging, video conferencing, shared calendar with bidirectional Google/Outlook sync, project and task management, surveys, workflow automation, secure professional email, and a collaborative directory; data is hosted in France on 3DS Outscale (Dassault Systèmes) infrastructure and the company is pursuing its own SecNumCloud homologation. Under the France 2030 program, Interstis leads the Hexagone consortium combining six additional French technology providers (BlueMind, XWiki/CryptPad, Belledonne/Linphone, Parsec, Tranquil IT) and serves as the technology foundation for the RESANA interministerial platform operated by DINUM.
Interstis monetizes the platform primarily through workspace-based SaaS subscriptions (priced per space rather than per user, with a free tier and premium paid plans) augmented by professional services for implementation, customization, training, and dedicated customer success. Go-to-market is anchored on direct enterprise field sales targeting French public agencies, complemented by event-driven demand generation (Territorialis, Salon des Maires, SNDGCT) and the CANUT channel partnership for public-sector procurement. The company serves state government, territorial authorities, healthcare organizations, education institutions, private enterprises (including Unilever), and non-profits — reportedly reaching 1,600 clients and over 800,000 users (of which roughly 250,000 sit on the RESANA government deployment).
The business closed a Series A led by Odyssée Venture in mid-2023, holds the French Tech label, has been awarded Lucie Label Level 1 for CSR, and is committed to RGAA accessibility compliance (target full conformance by end-2026). Owner and CEO Thomas Balladur (PDG) leads the firm, which remains independent and French-domiciled.
Interstis firmographics
Firmographics- Name
- Interstis
- Legal name
- Interstis Solutions
- Website
- https://interstis.fr
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Interstis Solutions is a French SaaS company that publishes the Hexagone sovereign collaborative suite — a SecNumCloud-hosted Microsoft 365 alternative used by 1,600+ French public-sector, healthcare, education, enterprise, and non-profit clients across 800,000+ users.
- Ownership category
- akta.pro rank
Interstis industry classification
Industry- Product category
- Enterprise Collaboration Software
- NAICS
- Computer Systems Design Services (541512), Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373), Services-Computer Programming Services (7371)
- akta.pro primary industry
- Work Management & Collaboration Suites (BPAMAMAG)
- akta.pro secondary industries
- Collaboration & Productivity Platforms (M365/Google Workspace, Email, Chat/Meetings) (BPAEAIAD), Managed Workplace Services (DaaS/Workplace-as-a-Service) (BPAEAIAA), Application Integration & API/Middleware Services (BPAEAAAF), Managed Application Platforms (App PaaS & Runtime Services) (HDABAAAD)
Keywords
Where Interstis is headquartered
LocationHeadquarters
- HQ city
- Le Creusot
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Interstis business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure
Revenue model
- SaaS Subscription: The company generates revenue primarily through SaaS subscriptions for its collaborative platform. Pricing is based on the number of workspaces rather than per-user, providing cost advantages for organizations with many users. The platform offers a free tier and premium paid plans with additional features.
- Professional Services: Implementation, customization, training, and dedicated customer success management services to support enterprise deployments.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier with basic collaboration features |
| Subscription | Annual | Premium subscription with advanced features |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels8 records
Interstis product offering
Product offeringCore offering
Interstis operates a SaaS-based collaborative workspace platform organized into 11 interconnected modules — document management (Gestion Électronique des Documents / GED), collaborative office suite, project and task management, instant messaging, video conferencing, secure email, collaborative calendar, surveys, workflow automation, and a shared directory. The platform is positioned as a sovereign French alternative to Microsoft 365 and Google Workspace, with all data hosted in France on SecNumCloud-certified infrastructure and pricing structured per workspace rather than per user.
Product overview
Interstis Solutions publishes the Hexagone collaborative suite, a unified platform-as-a-service offering built around 6 modules: Mes fichiers (GED), En équipe (collaborative office suite), En direct (instant messaging), Ma boîte pro (mail and calendar), En ligne (VoIP/voice — upcoming), and En sécurité (device security management — upcoming). The Hexagone suite is a sovereign French alternative to Microsoft 365 and Google Workspace, providing 98% of the functional coverage of Microsoft 365. Interstis Solutions serves as the technological foundation and lead editor of the Hexagone consortium (created under the France 2030 government call for projects), which integrates technology from five partner companies: BlueMind (messaging), XWiki/CryptPad (document editing), Linphone (voice/video), Parsec (zero-trust storage), and Tranquil IT (identity management and endpoint deployment). The platform serves government clients under the RESANA brand (operated by DINUM) as well as territorial authorities, healthcare, education, enterprises, and non-profits. All data is hosted in France on a SecNumCloud-certified infrastructure provided by 3DS Outscale.
Differentiator
Problem solved
Functional benefit
Brands
- Hexagone: The Hexagone suite is a complete, sovereign, and secure collaborative office suite developed by Interstis Solutions. It includes modules for document management (Mes fichiers), team collaboration (En équipe), instant communication (En direct), professional email and calendar (Ma boîte pro), online calling (En ligne - forthcoming), and secure device management (En sécurité - forthcoming). Hexagone is positioned as a 98% functional equivalent to Microsoft 365, hosted in France under SecNumCloud certification.
- RESANA
Products and services
- Hexagone Suite The Hexagone Suite is a sovereign French collaborative and office suite organized into 11 interconnected modules covering document management (Gestion Électronique des Documents / GED), collaborative office productivity, project management, task management, instant messaging, video conferencing, secure email, collaborative calendar, surveys, workflow automation and digital approval, and a shared directory. It targets the French central State, territorial collectivities, healthcare, education, non-profits, and private enterprise looking for a French alternative to Microsoft 365 and Google Workspace, with all data hosted in France under SecNumCloud certification.
Quantifiable outcome
- 70% reduction in email volume
- +3 more outcomes
Companies that use Interstis
Customer profileNamed customers7 records
Segments6 records
Ideal customer profiles4 records
Interstis technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
Feature6 records
Interstis partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core.
- CANUTcoreCANUT (Centrale d'Achat du Numérique et des Télécoms) serves as the official channel partner for public sector procurement, enabling local authorities and social housing organizations to purchase Interstis through simplified online purchasing.
- French Government (France 2030)coreThe French government selected Interstis as consortium leader for the France 2030 initiative to develop a sovereign collaborative suite as an alternative to Microsoft 365. The initiative supports innovation in responsible and sovereign digital collaboration.
- BlueMindcoreBlueMind provides open source messaging and collaboration solutions as part of the Hexagone consortium. Their messaging solution serves as the central communication hub for the collaborative suite, providing email and collaboration features.
- XWiki SAS (CryptPad)coreXWiki provides CryptPad, an end-to-end encrypted collaborative suite, integrated with Parsec for secure real-time document editing based on OnlyOffice solution. Part of the France 2030 consortium.
- Belledonne Communications (Linphone)coreBelledonne Communications provides Linphone, a secure voice and video communication solution for the Hexagone consortium, enabling secure VoIP and video conferencing capabilities.
- Parsec (Parsec Scille)coreParsec provides zero-trust security solutions for sensitive data, certified CSPN by ANSSI. Their technology enables secure data sharing, compartmentalization, and storage in cloud environments with zero-trust and zero-knowledge innovations.
- Tranquil ITcoreTranquil IT provides identity management, authentication, and authorization solutions, as well as client workstation deployment management for the Hexagone suite.
- 3DS Outscale (Dassault Systèmes)core3DS Outscale, a subsidiary of Dassault Systèmes, provides SecNumCloud-qualified cloud infrastructure for hosting Interstis platform data in France. Operates with 24/7 service monitoring.
Scale indicators4 records
Recent moves8 records
Expansion highlights6 records
Interstis competitors and assessment
Company assessmentBroad incumbents
- Microsoft 365: Microsoft's productivity and collaboration suite (Office, Teams, OneDrive, SharePoint, Exchange) is the primary incumbent Interstis positions against. Interstis explicitly markets a sovereign French alternative with 98% functional coverage of Microsoft 365 at lower cost.
- Google Workspace: Google's cloud productivity suite (Gmail, Drive, Docs, Meet, Chat) competes directly with Interstis's collaborative office and messaging modules. Interstis's sovereignty messaging targets organizations unwilling to host data with US hyperscalers.
Direct peers
- Talkspirit: French collaborative platform offering intranet, project management, chat, and document collaboration to mid-market and public sector clients. Like Interstis, it positions around French-language support, EU data residency, and integration with Microsoft/Google tools.
- Whaller: French sovereign collaborative platform with social network, document sharing, and project management features, targeting organizations with sovereignty and security requirements. Direct competitor in the French sovereign collaboration niche.
- Wimi: French collaborative workspace with project management, document sharing, drive, and team messaging, sold to SMBs and mid-market across Europe. Competes head-to-head with Interstis in France for projects and document collaboration use cases.
Emerging players
- Nextcloud: Open-source self-hosted collaboration suite (files, office, chat, calendar, video) often deployed by European public sector organizations seeking sovereignty. Overlaps with Interstis's document management, office suite, and calendar modules.
- OnlyOffice: Open-source collaborative office suite with document, spreadsheet, and presentation editors. Underpins parts of the Hexagone consortium via Parsec integration, making it both a partial partner and a comparable collaborative-office alternative.
Others
- BlueMind: French open-source messaging and collaboration platform providing email, calendar, and contacts. Hexagone consortium partner supplying Interstis's messaging backbone, while also competing for sovereign email deployments in French public sector.
- Linphone / Belledonne Communications: French open-source secure voice and video communications provider. Hexagone consortium partner supplying VoIP capability to Interstis, while separately serving sovereign unified communications needs in French public sector.
- 3DS Outscale (Dassault Systèmes): SecNumCloud-certified sovereign cloud infrastructure provider hosting Interstis platform data. Functions as enabling infrastructure partner while also being a potential sovereign-stack competitor for hosting independent collaborative solutions.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Interstis social profiles
Digital presenceInterstis compliance and trust
Trust signalCompliance3 records
Interstis financial estimates
Financial estimateRevenue estimate
Valuation estimate
Interstis leadership team
Management profileNumber of profiles
Profiles1 record
Interstis funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Interstis M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Interstis
What does Interstis do?
Interstis operates a SaaS-based collaborative workspace platform organized into 11 interconnected modules — document management (Gestion Électronique des Documents / GED), collaborative office suite, project and task management, instant messaging, video conferencing, secure email, collaborative calendar, surveys, workflow automation, and a shared directory. The platform is positioned as a sovereign French alternative to Microsoft 365 and Google Workspace, with all data hosted in France on SecNumCloud-certified infrastructure and pricing structured per workspace rather than per user.
Is Interstis a public or private company?
Interstis is a private company. It is classified as venture growth investor backed and is currently operating.
When was Interstis founded?
Interstis was founded in 2014. It employs 11 to 50 people.
Where is Interstis based?
Interstis is headquartered in Le Creusot, France, in the Europe region.
How does Interstis make money?
Two revenue lines are on record. SaaS Subscription is the primary driver. The others are professional Services.
Who are Interstis's main competitors?
Broad incumbents on record are Microsoft 365 and Google Workspace. Direct peers are Talkspirit, Whaller and Wimi. Emerging players are Nextcloud and OnlyOffice. Others are BlueMind, Linphone / Belledonne Communications and 3DS Outscale (Dassault Systèmes).
Does Interstis have an API?
No public API is recorded for Interstis.
What industry is Interstis in?
Interstis's product category is Enterprise Collaboration Software. Its primary akta.pro industry code is BPAMAMAG, Work Management & Collaboration Suites, with a secondary code of BPAEAIAD, Collaboration & Productivity Platforms (M365/Google Workspace, Email, Chat/Meetings). Its NAICS code is 541512 and its SIC code is 7372.