#Switzerland #Zurich #Open Systems #Dennis Monner #SASE Solutions

Open Systems Transitions Leadership for Future Growth

Open Systems, a prominent name in Managed SASE (Secure Access Service Edge) solutions, has announced a significant leadership change as it embarks on its next phase of growth. As of October 1, 2025, Dennis Monner will take over the reins as Chief Executive Officer, succeeding Daniel Neuhaus. Neuhaus, who has been instrumental in shaping the company’s strategic direction since 2023, expressed pride in the progress the organization has made during his tenure.

Dennis Monner brings over 25 years of extensive experience in cybersecurity, cloud services, and networking to his new role. Having founded successful firms such as Gateprotect and Secucloud, which garnered significant attention in the security sector, Monner's expertise will be invaluable as Open Systems aims to magnify its market presence in the ever-evolving landscape of digital security.

“I am thrilled to join Open Systems at such a pivotal moment,” stated Monner. “The company has built a robust foundation thanks to its exceptional technology and unwavering focus on customer satisfaction. With vast opportunities ahead, I am eager to work alongside our talented team to amplify our market impact and drive innovation.”

Under Neuhaus’s leadership, Open Systems experienced considerable growth, expanding its product offerings and undergoing a strategic acquisition by Swiss Post. Neuhaus joined Open Systems after the acquisition of his previous company, Sqooba. His multifaceted roles transitioned from Chief Product Officer to Chief Technology Officer and, ultimately, CEO. Throughout his journey, he aligned product strategies with technological advancement while prioritizing customer engagement, ensuring the company’s resiliency amid complex cybersecurity challenges.

“The groundwork we laid over the past several years has been crucial for our global expansion,” Neuhaus reflected. “I am immensely proud of our team and how our efforts have been recognized externally, including being named a Great Place to Work for three consecutive years. This journey has been extraordinary, and I am confident that Dennis will elevate Open Systems to new heights.”

Daniel Gerber, Chairman of the Board, acknowledged the efforts put forth by Neuhaus, praising his leadership and vision as critical drivers in making Open Systems a front-runner in the cybersecurity sector. “With the support of Swiss Post and under Dennis's entrepreneurial leadership, we are set to further accelerate our growth. By leveraging innovations such as AI, we aim to enhance our capabilities and expand our global reach,” Gerber remarked.

As Open Systems approaches its 35th anniversary, this leadership transition represents a strategic move aimed at reinforcing its position in the marketplace that increasingly demands agile and integrated cybersecurity solutions. Established in 1990, Open Systems has made a mark as a pioneer in Managed SASE solutions, effectively merging networking and security services on a cloud-native platform.

Operating across more than 180 countries, Open Systems offers businesses a holistic, user-centric support model that ensures round-the-clock expert service. The combination of an innovative platform and exceptional service guarantees customers secure and reliable network operations. The company’s commitment to seamless connectivity across diverse environments—cloud, on-premises, and hybrid—delivers an outstanding user experience, underpinned by a sophisticated customer portal.

As Dennis Monner steps into his new role at Open Systems, the cybersecurity landscape is poised for further innovation and customer engagement. His leadership will certainly shape the next chapter of Open Systems, paving the way for significant advancements in Managed SASE solutions and a bright future ahead.

About Open Systems

Open Systems is a leading provider of native Managed SASE solutions, combining network and security capabilities on a cloud-native platform. Founded in 1990 and headquartered in Zurich, the Swiss cybersecurity firm supports clients worldwide through a customer-centric service model that delivers 24/7 expert support. With a focus on ensuring secure and efficient network operations, Open Systems continues to empower organizations in navigating the complexities of today's IT environments.