Sine Qua Non

What Sine Qua Non does

Sine Qua Non is a privately held French IT services company (ESN) founded in 1996 and headquartered at 8 place Lachambeaudie in Paris's 12th arrondissement. Operating as a SARL under French law with a registered share capital of €143,000 and approximately 15 employees, the company delivers proximity-based managed IT services (infogérance) to small and medium enterprises (TPE/PME) primarily in Paris intra-muros and the Île-de-France region. Its customer base is diversified across legal, financial, sports federation, consulting, cold-chain and audiovisual verticals, with multiple client relationships spanning 15+ years and no single dominant account visible in the data.

The company's product portfolio is built around a recurring managed services core (proactive server monitoring, helpdesk, on-site intervention, remote maintenance) and is supplemented by specialized modules: IT audit and analysis, the proprietary VigiGuard 360° cybersecurity bundle (covering Microsoft 365 surveillance, firewall/EDR, email reputation, data security and employee training), collaboration and mobility tools, 3-2-1 backup and replication, VMware-based network and server virtualization, firewall/VPN security, cloud and hosted services, and VoIP/telecom. Underlying infrastructure is anchored by an in-house redundant datacenter located 2km from the offices, housing Cisco switches, HP Blade servers and HP SAN storage, supporting 60TB of backed-up data and 128 VMs. Core technology partnerships include Microsoft (Silver Partner), HPE, Cisco, Sophos (Silver), WatchGuard, VMware, OVH, AdminDroid and SolarWinds MSP, making the offering effectively a best-of-breed Microsoft-centric stack rather than a proprietary platform.

Sine Qua Non generates revenue predominantly through recurring managed services contracts, project-based consulting and audit fees, and subscription-based cybersecurity and cloud hosting engagements; pricing is quote-based and tailored to each client rather than publicly tiered. Go-to-market is sales-led and locally focused, relying on direct sales, inside-sales hotline support, website contact forms, and bottom-of-funnel word-of-mouth referrals from long-standing clients. Distribution is entirely domestic and direct, with no resellers, distributors or international presence. The company is bootstrapped with no disclosed external funding, no parent company, and no M&A activity on record; Romain Guillaume serves as Director of Publication (CEO).

Name

Sine Qua Non

Legal name

Sine Qua Non

Website

https://sinequanon.fr

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

Sine Qua Non is a Paris-based managed IT services provider (ESN) founded in 1996, offering proximity-driven infogérance, cybersecurity (VigiGuard 360°), cloud, backup, networking and VoIP services to small and medium enterprises in the Paris and Île-de-France region.

Ownership category

akta.pro rank

Product category

Managed IT Services

NAICS

Computer Facilities Management Services (541513), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Systems Design and Related Services (54151)

SIC

Services-Computer Integrated Systems Design (7373), Communications Services, Nec (4899)

akta.pro primary industry

Network Performance Management & Observability Services (BPAEAEAH)

akta.pro secondary industry

Network Security Services (Firewall/VPN/ZTNA/SASE Integration) (BPAEAEAG)

Keywords

• Managed IT services
• Cybersecurity services
• Cloud hosting services
• IT infrastructure management
• Business IT consulting

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Infrastructure, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. Managed IT Services (Infogérance): Comprehensive IT outsourcing services including proactive monitoring, helpdesk support, on-site interventions, and maintenance. Revenue generated through recurring service contracts tailored to client needs.
2. Cloud and Hosted Services: IaaS, PaaS, and SaaS offerings including hosted messaging (Exchange), remote desktop, virtual machines, and private/cloud/hybrid infrastructure consulting.
3. VigiGuard Cybersecurity Services: 360-degree cybersecurity monitoring and protection services for Microsoft 365, networks, workstations, and data.
4. Consulting and Professional Services: IT audit, analysis, infrastructure design, migration, and implementation services provided on a project or retainer basis.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Sine Qua Non provides outsourced IT management (infogérance) for small and medium enterprises in the Paris and Île-de-France region, including proactive server and workstation monitoring, helpdesk support, on-site interventions, and customized SLAs. The offering is supplemented by specialized modules for cybersecurity (VigiGuard 360°), IT audit and analysis, backup and replication using the 3-2-1 methodology, network and server virtualization, security/firewall/filtering, cloud and hosted services (IaaS/PaaS/SaaS), and VoIP/telecom and very high-speed connectivity.

Product overview

Sine Qua Non is an IT services company (ESN) based in Paris, France, providing comprehensive managed IT services (infogérance) to small and medium enterprises since 1996. The core offering is the Infogérance proactive managed services suite, supplemented by specialized modules including: VigiGuard (cybersecurity 360°), Audit et analyse (IT infrastructure assessment), Collaboration et mobilité (collaboration and mobile tools), Sauvegarde et réplication (backup and disaster recovery implementing the 3-2-1 rule), Réseaux et virtualisation (network and server virtualization), Sécurité et interconnexions (security and firewall services), Cloud et services hébergés (cloud hosting with IaaS/PaaS/SaaS options), and Internet et telecom (VoIP and high-speed connectivity). The company also offers AdminDroid, a Microsoft 365 administration and reporting tool through a partnership. Services are delivered through a combination of remote support, on-site interventions, and the company's own datacenter infrastructure located near Paris.

Differentiator

Problem solved

Functional benefit

Brands

• VigiGuard: Cybersecurity 360° solution offering comprehensive digital risk protection including MS 365 surveillance, network security, endpoint protection, email reputation protection, and data security.

Products and services

• Infogérance proactive (Proactive Managed IT) Comprehensive IT infrastructure management service for SMEs providing real-time server monitoring, helpdesk support, remote maintenance (télémaintenance), on-site interventions, and customized service level agreements.
• VigiGuard 360° Cybersecurity Proprietary-branded 360° cybersecurity service providing continuous surveillance of Microsoft 365 environments, network hardening, secure endpoint management with EDR monitoring, email reputation protection, data security monitoring, and employee training/awareness programs.
• Audit et analyse (IT Audit and Analysis) IT infrastructure assessment service that inventories existing systems, analyzes configurations and security settings, verifies backup plans, and produces actionable recommendations with cost estimates.
• Collaboration et mobilité (Collaboration and Mobility) Business productivity suite covering document management with versioning, mobile access across devices, hosted applications, and unified communications including email with legal archiving.
• Sauvegarde et réplication (Backup and Replication) Data protection service implementing the 3-2-1 backup rule (three copies on two different media with one off-site), disaster recovery planning, real-time VM replication, and rapid restoration capabilities.
• Réseaux et virtualisation (Networks and Virtualization) Network infrastructure services including VMware and Hyper-V virtualization, server migrations, network consolidation, and bandwidth optimization with latency analysis.
• Sécurité et interconnexions (Security and Interconnections) Cybersecurity services including firewall deployment, internet filtering with reporting, remote access protection, VPN SSL setup, network segmentation, and cyberattack prevention.
• Cloud et services hébergés (Cloud and Hosted Services) Cloud computing services offering IaaS, PaaS, and SaaS models with private, public, or hybrid architecture options, backed by the company's own datacenter infrastructure with redundant equipment located near Paris.
• Internet et telecom (Internet and Telecom) Telecommunications services including VoIP, videoconferencing, very high-speed internet connections (FTTH, FTTO, FTTE), and unified communication solutions with ARCEP-compliant consulting.

Quantifiable outcome

• Response time under 15 minutes
• +3 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature4 records

Partnerships

Seven partnerships are on record, tiered core.

• MicrosoftcoreTechnology or IntegrationMicrosoft partner offering Office 365 services, Microsoft Azure, and Windows Server expertise. Certified as Microsoft Silver Partner with specializations in SMB and productivity solutions. Provides cloud services, hosted Exchange messaging, and Microsoft 365 administration.
• OVHcoreTechnology or IntegrationCloud hosting partner providing infrastructure services. Referenced for cloud hosting recommendations and pricing guidance for clients.
• Hewlett Packard EnterprisecoreTechnology or IntegrationServer and storage hardware partner providing enterprise-grade infrastructure components including HP Blade servers and HP SAN storage arrays.
• CiscocoreTechnology or IntegrationNetwork equipment partner providing switches and networking infrastructure components for client environments.
• SophoscoreTechnology or IntegrationCybersecurity partner with Silver Partner status, providing firewall solutions and endpoint protection for client environments.
• WatchGuardcoreTechnology or IntegrationCybersecurity partner providing firewall and network security solutions. Certified partner status.
• VMwarecoreTechnology or IntegrationVirtualization technology partner providing hypervisor solutions (VMware/ESXi) for server virtualization and business continuity.

Scale indicators10 records

Recent moves5 records

Expansion highlights3 records

Direct peers

• ADISTA: French managed services and hosting company providing IT outsourcing, cloud, cybersecurity, and connectivity to SMEs and mid-market — directly comparable scope to Sine Qua Non's infogérance + cloud + VigiGuard portfolio.
• Oceanet Technology: French managed hosting and IT services firm offering cloud, managed security, and VoIP to French SMBs, with comparable Microsoft and cybersecurity partnerships — directly overlapping with Sine Qua Non's core managed-services proposition.
• Hexanet: French managed telecom and IT services provider combining VoIP, fiber connectivity, cloud hosting, and managed IT for SMEs — directly comparable in service mix and target customer profile.
• NFrance Conseil: French regional managed-services and hosting company offering IaaS/PaaS, backup, and managed IT to SMBs and mid-market — a directly comparable infogérance + cloud proposition, though with broader geographic reach than Sine Qua Non.
• Celeste: French operator offering enterprise fiber, cloud hosting, and managed network/security services to SMBs — comparable in combining connectivity, hosting, and managed IT for French SMEs in similar verticals.
• Ikoula: French cloud hosting and managed services provider offering dedicated servers, IaaS, backup, and managed IT — overlapping with Sine Qua Non's cloud + backup + hosting product line.

Broad incumbents

• Econocom: Large French digital services group offering managed workplace, cloud, cybersecurity, and financing — same service categories as Sine Qua Non but at significantly larger scale, serving mid-market and enterprise rather than TPEs.
• Devoteam: Major French IT consultancy and managed services firm with strong Microsoft, cloud, and cybersecurity practices — overlapping with Sine Qua Non's Microsoft Silver + cybersecurity positioning but serving enterprise clients.
• Sopra Steria: Large French-headquartered IT services group offering managed infrastructure, cloud, and cybersecurity — operates broadly in the same managed-services category as Sine Qua Non but at vastly larger scale and enterprise focus.

Others

• OVHcloud: French hyperscale cloud provider that is both a Sine Qua Non partner (referenced for client cloud hosting per source) and a potential competitive threat via direct cloud/managed-services offerings to French SMEs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/prestainfo
• Facebookfacebook.com/SSIISineQuaNon
• LinkedInlinkedin.com/company/sine-qua-non---le-prestataire-informatique-qui-met-de-la-suite-dans-vos-id%C3%A9es-...

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sine Qua Non