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Open Systems's Overview

Total employees428
HeadquartersZurich
Founded1990

Open Systems is a cybersecurity services provider specializing in Secure Access Service Edge (SASE) and Managed Detection and Response (MDR). They focus on delivering a comprehensive, integrated security platform that helps organizations simplify their security stack, improve visibility, and proactively defend against cyber threats. Open Systems combines a cloud-native platform with 24x7 human expertise from their Security Operations Centers (SOCs) to offer robust protection and operational efficiency for enterprises globally.

Where is Open Systems's Headquarters?

HQ Function

Global headquarters orchestrating worldwide strategy, research and development, core operational management, and central support functions for Open Systems' cybersecurity solutions.

Notable Features:

Modern office facilities designed to foster collaboration and innovation, equipped with state-of-the-art technology infrastructure. Likely includes secure operations areas and advanced network monitoring capabilities reflecting its cybersecurity focus.

Work Culture:

A dynamic and innovative work environment centered on cybersecurity excellence, proactive threat mitigation, teamwork, and customer-centric problem-solving. Emphasizes continuous learning, agility, and adapting to the evolving global threat landscape.

HQ Significance:

Serves as the central nervous system for Open Systems' global operations, embodying its Swiss heritage of precision, reliability, and trust in delivering mission-critical security services to clients worldwide.

Values Reflected in HQ: The headquarters' design and operations likely reflect Open Systems' core values of security, innovation, customer focus, operational excellence, and a commitment to protecting client enterprises in a complex digital world.

Location:

Open Systems supports its global customer base through a network of strategic office locations and globally distributed 24x7 Security Operations Centers (SOCs). This allows them to provide continuous monitoring, threat detection, and rapid response services worldwide. Their functions supported globally include sales, customer success, technical support, professional services, and threat intelligence, ensuring comprehensive cybersecurity coverage for multinational organizations.

Street Address:

Räffelstrasse 29

City:

Zurich

State/Province:

Zurich

Country:

Switzerland

Open Systems's Global Presence

Redwood City, CA/USA

Address: 555 Twin Dolphin Drive, Suite 135, Redwood City, CA 94065, USA

To expand Open Systems' market presence and provide localized, high-touch support for its SASE and MDR solutions across the North American market, catering to enterprises' evolving cybersecurity needs.

London/United Kingdom

Address: Park House, 16-18 Finsbury Circus, London, EC2M 7EB, United Kingdom

To strengthen Open Systems' footprint in the UK and EMEA, offering tailored cybersecurity solutions and expert support to a diverse range of industries, and addressing specific regional compliance and threat landscapes.

Berlin/Germany

Address: Open Systems AG, Zweigniederlassung Deutschland, Rotherstraße 16, 10245 Berlin, Germany

To cater specifically to the cybersecurity requirements of organizations in the DACH market, ensuring localized service delivery and compliance with regional data protection standards.

Sydney/Australia

Address: Open Systems Pty Ltd, Level 24, Three International Towers, 300 Barangaroo Avenue, Sydney, NSW 2000, Australia

To extend Open Systems' global reach into the APAC market, providing its advanced SASE and MDR services to help organizations in the region navigate the complex cybersecurity challenges.

Buying Intent Signals for Open Systems

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of Open Systems

As of April 2025, Open Systems' leadership includes:

Geoff Haydon - Chief Executive Officer
Tom Corn - Chief Product Officer
Michael Aiello - Chief Technology Officer
Dave Yashar - Chief Financial Officer
Michael McCarthy - Chief Revenue Officer
Chris Raniere - Chief Human Resources Officer

Investors of Open Systems

Open Systems has been backed by several prominent investors over the years, including:

EQT Partners

Executive New Hires/Exits in the Last 12 Months

Hire1
Exits1

In the past 12 months, Open Systems has made strategic changes to its executive leadership, notably appointing Michael McCarthy as Chief Revenue Officer. This move underscores the company's commitment to accelerating growth and expanding its market share in the cybersecurity landscape. Paul Gazzolo, the former CRO, transitioned out of the role around the same time.

Departures

Paul Gazzolo, Paul Gazzolo departed from his role as Chief Revenue Officer.

New Appointments:

Michael McCarthy, Michael McCarthy appointed as new Chief Revenue Officer to lead global sales and revenue operations.

Technology (Tech Stack) used by Open Systems

Discover the tools Open Systems uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

Open Systems Email Formats and Examples

Open Systems primarily utilizes the email format of [first_initial][last]@opensystems.com. This is a common structure for corporate communications.

[first_initial][last]@opensystems.com

Format

jdoe@opensystems.com

Example

85%

Success rate

News and media

opensystems.comFebruary 7, 2024

Open Systems Recognized in 2024 Gartner® Magic Quadrant™ for Single-Vendor SASE for Third Consecutive Year

Open Systems announced its recognition in the Gartner Magic Quadrant for Single-Vendor SASE for the third year in a row, highlighting its completeness of vision and ability to execute in the SASE market....more

opensystems.comNovember 14, 2023

Open Systems Adds Risk-Based Vulnerability Management to its MDR Service

Open Systems enhanced its Managed Detection and Response (MDR) service with the addition of Risk-Based Vulnerability Management, enabling customers to prioritize and address vulnerabilities more effectively....more

opensystems.comJuly 12, 2023

Open Systems Appoints Michael McCarthy as Chief Revenue Officer

Open Systems announced the appointment of Michael McCarthy as its new Chief Revenue Officer (CRO) to lead the company's global sales organization and drive its next phase of growth....more

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