Partner profile
Open Systems
Managed SASE and MDR, Delivered as a Service
Founded 1990 · Zurich, Switzerland · 51-200 employees · Private, VC/PE backed
Partnership Overview
Who Open Systems is built for
Mid-market and enterprise organizations with lean IT/security teams that want a single managed partner to run their global network and security operations (SASE + MDR) end-to-end.
Open Systems is a managed secure access (SASE) and managed detection & response (MDR/MXDR) provider founded in Switzerland in 1990, headquartered in Redwood City, CA and Zurich. It delivers a fully managed, white-glove service combining cloud-delivered Secure SD-WAN, firewall (FWaaS), secure web gateway, and ZTNA with 24/7 'Mission Control' SOC-based MDR that integrates deeply with Microsoft Sentinel and Defender. Its SOCs/NOCs provide round-the-clock coverage for nearly 10,000 locations across 184 countries, and the company reports a 97% customer retention rate. Open Systems is a multi-time Microsoft Gold/Security partner and has been named by Gartner across MDR and Managed Security Services research; its MDR business was spun out as Ontinue (2022 Microsoft Security MSSP Partner of the Year).
- VerifiedSep 20, 2026 · high confidence
- 5solutions across 3 categories
- 36 yrsin business, since 1990
- 51-200employees
Why teams pick Open Systems
- Fully managed SASE + MDR as one service
- High-touch white-glove operations
- /7 Mission Control SOC/NOC
- Strong Microsoft Sentinel MDR practice
- European data sovereignty heritage
- Ideal for lean security teams
Probably not a fit
We haven't published fit caveats for Open Systems yet. Tell us what you run and we'll say whether they fit, or who we'd look at instead.
Get matched insteadRecognition & proof points
Named in the 2022 Gartner Hype Cycle for Security Operations and Gartner Market Guides for MDR (2021, two years runnin…Analyst recognition · Gartner
Five-time Microsoft Gold PartnerPartner status · Microsoft
- % customer retention; ~10,000 sites across 184 countriesProof point
Notable clients
Vendor-reportedGlobal manufacturers and enterprises (especially European multinationals) named logos generally private
Our Solutions
Rubber Duck solutions through Open Systems
From first evaluation to day-to-day operations, Rubber Duck Technology helps you get full value from Open Systems' Connectivity & SASE, Cybersecurity & Compliance, and Managed IT & Cloud Ops solutions. We fit them to the systems you already run, remove overlap, and give you a clear view of how they perform, so your team can move faster with fewer surprises.
Connectivity & SASE
SASE / SSE
Open Systems delivers fully managed SASE combining Secure SD-WAN, FWaaS, secure web gateway, and ZTNA as a single white-glove service.
- Fully managed SASE SASE is delivered as a complete managed service rather than DIY tooling.
- White-glove operations High-touch, white-glove engineering suits lean security teams.
- Swiss engineering heritage Swiss engineering roots bring a data-sovereignty focus to managed SASE.
Microsoft SentinelMicrosoft DefenderSD-WAN
Open Systems provides managed Secure SD-WAN as part of its integrated SASE service, covering nearly 10,000 locations across 184 countries.
- Global scale Manages SD-WAN across nearly 10,000 locations in 184 countries.
- Integrated with SASE SD-WAN is part of a single managed SASE service, not a standalone product.
Cybersecurity & Compliance
Managed Detection & Response (MDR)
Open Systems delivers MDR/MXDR from its 24/7 Mission Control SOC, with deep Microsoft Sentinel and Defender integration.
- Sentinel-based MDR A strong Microsoft Sentinel MDR practice anchors detection and response.
- 24/7 Mission Control Round-the-clock Mission Control SOC delivers continuous threat coverage.
Microsoft SentinelMicrosoft DefenderSecure Web Gateway
Open Systems includes a managed secure web gateway within its cloud-delivered SASE service for inspecting and controlling web traffic.
- Part of managed SASE Secure web gateway is delivered within a single integrated SASE service.
- Outcome-based model An outcome-based managed model offloads operations from lean teams.
Firewall / Network Security
Open Systems provides managed firewall/NGFW (FWaaS) and ZTNA as components of its fully managed SASE offering.
- FWaaS and ZTNA Managed firewall and ZTNA are delivered together within the SASE service.
- High-touch delivery White-glove operations manage network security for lean security teams.
How Open Systems delivers
24/7 'Mission Control' SOC/NOC; white-glove managed engineering; SLA-backed managed SASE and MDR with rapid response. (vendor-reported)
Services in detail
- Managed Network ServicesFully managed, white-glove delivery from 24/7 global SOC/NOC operations.
- Managed Security ServicesFully managed and outcome-based, integrating Microsoft Sentinel and Defender.
- Security Operations Center (SOC)Fully managed 24/7 SOC delivered through global Mission Control operations.
- 24/7 MonitoringDelivered round-the-clock from global Mission Control SOC/NOC.
- Network Operations Center (NOC)Staffed 24/7 globally as part of integrated SOC/NOC Mission Control.
Automate/AI, built in · Integrates 3rd-party AI. Leverages Microsoft Sentinel AI/ML analytics and automation for threat detection within its MDR service; uses automation/orchestration across its managed SASE operations.
Compare
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We'd price Open Systems next to these. Same scope on one page, sent to every provider, so the numbers actually line up.
Who we'd price next to Open Systems
Cato Networks Connect Protect
The World's First SASE Platform
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Case Studies
What backs it up
Case studies
No published case studies yet.
Ask us and we'll request a reference call with Open Systems.
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Technology that doesn't sink under pressure
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Send us what you run today. We'll price Open Systems against two alternatives and tell you which one we'd pick, and why.