Managed SASE. Operated Security. For organizations with global locations and complex IT environments.
Open Systems helps organizations with distributed locations – regional and global – and hybrid IT and cloud environments meet demanding availability and security requirements. To achieve this, Open Systems combines modern networking and security services with transparent, managed 24×7 operations. Customers can flexibly choose the level of support they need to effectively close the growing IT execution gap many organizations face.
As a Swiss company, Open Systems is Europe's leading Managed SASE provider and offers an important alternative to global vendors, particularly from the United States and Israel. Particular emphasis is placed on regulatory alignment, operational transparency, and reliable service delivery. The result: secure, reliable, and scalable network and security operations for increasingly distributed IT environments.
Founded in 1990 and headquartered in Zurich, Open Systems generates annual revenue of more than USD 100 million and supports global enterprise customers with more than 100,000 employees across operations in over 180 countries. As part of Swiss Post Digital Services, Open Systems combines Swiss reliability and governance with global reach and operational excellence.
One Platform: Network | Security | Operations
Modern SASE environments consist of three tightly connected layers: Network, Security, and Operations.
Network:
determines how traffic flows
Security:
determines how access is controlled
Operations:
determines whether both work reliably in everyday reality
Many organizations have already invested in modern architectures such as SASE and Zero Trust. Today, however, the challenge is no longer architecture design — it is operations. If the underlying network suffers from latency, packet loss, or instability, application performance degrades regardless of architecture. Open Systems closes this gap:
• Integrated networking and security
• Continuous 24×7 operations through Mission Control
• Co-managed delivery model with clear ownership and full transparency
Unified Managed SASE Integrated, not fragmented

The Open Systems Network Layer
Global Backbone Connectivity (Open Systems)
Private backbone with availability and traffic-quality SLAs, automated healing, and intelligent routing.
Outcome: More stable global application performance with significantly less dependence on the unpredictability of the public internet..
Last-Mile Connectivity
Procurement, orchestration, and lifecycle management of ISP connectivity as a service.
Business impact: Reduced operational effort per site and less vendor friction.
Line Operations Service (LOS)
24×7 monitoring of access lines including triage, ISP ticket management, tracking through resolution, and bandwidth analytics through the portal.
Outcome: Faster issue resolution and meaningful relief for internal IT teams.
The Open Systems Security Layer
ZTNA: Identity- and context-based application access as a modern alternative to broad VPN access.
Reduces attack surface and simplifies secure access for employees and partners.
SWG: Secure web access through consistent policy enforcement and threat detection.
Protects users everywhere — in the office, on the road, or working remotely.
CASB: Governance and control of SaaS usage including visibility, policies, and risk management.
Reduces Shadow IT risks and supports compliance initiatives.
Firewall Services: Centralized firewall capabilities delivered as a service.
Creates consistent security baselines and reduces appliance complexity.
Reporting & Compliance Support: Transparency, reporting, and processes designed to significantly simplify audits.
Reduces operational friction and improves accountability.
Architecture Defines Potential. Operations Define Reality. Mission Control - Open Systems Managed Service

What used to be primarily an architecture challenge has become an operational one. Day-to-day reality is dominated by tickets, changes, escalations, and coordination across multiple providers. As a result, strategic initiatives are pushed aside and IT teams become reactive instead of driving business outcomes.
This is where Open Systems comes in. Through Mission Control, Open Systems provides 24×7 end-to-end operations across network and security layers – transparent, proactive, and as a trusted extension of customer teams.
This includes:
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Follow-the-sun operating model
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Global team of senior Level 3 engineers
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Real-time monitoring across network and security layers
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Proactive issue resolution
The difference becomes especially visible in day-to-day operations:
Connectivity Operations
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ISP selection, contract and lifecycle management
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Single point of contact
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Unified billing and provider abstraction
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24×7 monitoring and incident handling
Security Operations
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Policy management and optimization
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Threat detection and response
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Change management and configuration
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Compliance support and reporting
Why does this matter?
Environments rarely fail because of architecture. They fail because of execution. Performance degrades, incidents take longer to resolve, and ownership becomes unclear – not because architecture was wrong, but because it is not operated as one integrated system. SASE makes these dependencies visible, critical and solvable.
From Complexity to Control The Open Systems Approach

What customers gain
End-to-end ownership
One provider across connectivity, security, and operations with clear accountability and consistent execution.
Performance and reliability
Optimized traffic paths, stable connectivity, and a consistent user experience worldwide.
Faster response
Incidents are resolved more quickly through standardized processes and 24×7 operations.
More time for IT
Less effort spent on coordination and maintenance, more capacity for strategic initiatives.
Complete transparency
End-to-end visibility across users, traffic, and security in real time.
Regulatory alignment
Built to support evolving requirements including NIS2, DORA, ISO 27001, and SOC 2.
The real challenge
The industry has focused heavily on what gets implemented. The more important question is how security actually works in daily operations, across networks, clouds, and regions.
What Makes Open Systems Different Operate security, don’t just manage it

What differentiates Open Systems is the combination of platform, connectivity, and operational delivery. Technology alone does not create reliable security. What matters is how consistently networking and security services are operated, monitored, and continuously improved in daily practice. This is where Open Systems stands apart.
This becomes clear in three ways:
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Platforms deliver technology. Open Systems ensures reliable operations.
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Tools identify problems. Open Systems resolves them.
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Architecture defines security. Operations make it work in reality.
This approach is especially relevant for organizations with high requirements around availability, transparency, and operational control, particularly:
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Global enterprises with distributed locations
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Cloud-first organizations with hybrid IT environments
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Regulated industries such as manufacturing, financial services, and critical infrastructure

Die beste Lösung – direkt umgesetzt Integration und Development mit terreActive
Ob in der Cloud oder lokal, ob grundlegende Überarbeitung oder spezielle Ergänzungen: Ganz nach Ihrem Bedarf erarbeiten unsere Expertinnen und Experten gemeinsam mit Ihnen die Lösungen, die Ihre IT-Infrastruktur benötigt. terreActive ist von zahlreichen Herstellern zertifiziert und garantiert Ihnen eine kompetente Integration. Für Ergebnisse, auf die Sie sich verlassen können: zum Beispiel in den Bereichen Mail-, Web-, oder Netzwerksicherheit, Zugriffsrechteverwaltung oder Gefahrenerkennung.
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Our address
Swiss Post Digital
Wankdorfallee 4
3030 Bern
Switzerland
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