Shaping the future
Join us in building a European platform for managed security services
for upper-mid-market companies. At athegis, we combine a customer-focused
approach with a cutting-edge portfolio, innovative partners, AI support,
technical expertise and outstanding implementation.
The market is evolving – and we evolve with it.
athegis was founded to strengthen cybersecurity companies in this transformation – through structure, scale, and genuine partnership. Together, we cover all relevant areas, build a strong platform, and combine complementary strengths.
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Increasing complexity of cyberattacks
The growing threat landscape is driving demand across all areas. Specialized services (e.g., MDR, DFIR) are gaining importance.
Rising costs
The cost of cyber incidents continues to increase, prompting companies to invest more in preventive and reactive measures (e.g., MDR, threat hunting, consulting).
Skills shortage
Demand for IT security experts far exceeds supply. Small and medium-sized enterprises in particular often lack qualified personnel with sufficient expertise.
Expanded attack surface
The introduction of cloud computing, remote work, IoT, and the convergence of IT and OT are expanding the attack surface and increasing demand for comprehensive security.
Growing importance of AI
The increasing use of AI-powered security solutions enhances efficiency and protection – while AI-based attacks are also rising. Defense is becoming more complex and costly.
Rising requirements from cyber insurers
Insurers increasingly require proof of fundamental security measures before issuing or renewing cyber insurance policies.
Regulatory pressure
Key regulatory frameworks (e.g., GDPR, NIS2, DORA) are increasing cybersecurity spending. Companies require support with implementation and assessment.
Supply chain risks
Growing global interconnectedness makes companies more vulnerable. Security providers must assess and secure global supply chains holistically.
Growth requires structure. Entrepreneurship requires freedom.
Designed as a partnership model, our partners retain their entrepreneurial independence while benefiting from shared investments, centralized services, and our network of experts.
Secure your competitive advantage with athegis.
We are not building a group of companies – we are building a network of strong partners with shared responsibility.
Strong portfolio
We are a platform of specialized companies focused on cybersecurity solutions for the upper mid-market. Together, we address all customer needs for comprehensive and modern protection against cyber risks. Our focus is seamless collaboration across all areas of modern cybersecurity to deliver excellence at competitive prices.
Access to experts
Our companies benefit from proven experts in areas such as sales and portfolio management, partner management, marketing and communications, and AI transformation. We identify and share best practices to continuously improve.
Shared services
By relieving our companies of tasks such as finance and controlling, HR management and recruitment, and internal IT management, they can focus more strongly on customer needs.
Platform identity
Our companies retain their brand identity, corporate culture, and autonomy. We foster collaborative partnerships and create a unifying brand that is perceived as a strong entity by employees, the market, customers, and partners alike.
Growth & financing
We provide access to financing through an experienced mid-cap investor with entrepreneurial DNA, delivering capital for sustainable growth.
Employee retention
Employees benefit from being part of our platform. We offer diverse career opportunities across all affiliated companies and value chain levels, strengthening long-term retention.
Why are we the best fit for you?
When are you the right fit for us?
Our experienced leadership team combines deep industry expertise with strong strategic competence.
Jens Rüster
Co-founder and Managing Director
Jens Rüster brings more than 25 years of experience in operational and international leadership roles within the IT and communications industry. He spent 20 years as a member of the executive management board at T-Systems and served on the executive boards of Devoteam and SITS Group.
He is a recognized expert in digitalization, cloud services, cybersecurity, and artificial intelligence, advising both global corporations and leading European mid-market companies. His expertise includes scaling, transforming, restructuring, and integrating technology and cybersecurity service providers, as well as executing complex post-merger integrations.
Daniel Beringer
CEO GREENPEAK Partners
Daniel Beringer is Co-Founder, Managing Partner, and CEO of GREENPEAK Partners.
With more than 20 years of experience in entrepreneurship, private equity, and building scalable service platforms, Daniel drives the firm’s buy-and-build strategy. He leads deal sourcing, structuring, and institutionalization of founder-led businesses, with a focus on governance, professionalization, and long-term value creation.
Christoph von Falck
Advisory Board
Christoph von Falck is an experienced M&A leader with a strong track record in technology and cybersecurity sectors.
With more than 20 years of experience in strategic transactions, corporate development and board roles, Christoph brings deep expertise in navigating complex tech markets. He also co-founded Helantic, a venture capital firm targeting defense technology investments in Europe.
Dr. Michael Ruoff
Advisory Board
Dr. Michael Ruoff is a seasoned expert in corporate finance, M&A, and private equity.
With over 20 years of experience as a lawyer, inhouse counsel, and investor, he has advised and executed numerous transactions across sectors. Michael serves as Chairman of the ACADEMIA Group, a consolidator in the German special laboratory market supported by GREENPEAK, and is a partner at Think. Health Ventures, a boutique healthcare investor. His background blends legal excellence with strategic investment leadership.
Constantin Wagner
Business Development
With his background in direct investments, fund investments, and strategic analysis, Constantin supports the management team of athegis in driving growth initiatives and further developing the platform.
Prior to this, he worked in the co- and fund investment team at Petiole Asset Management and in the investment team at Energy Infrastructure Partners (formerly Credit Suisse). He holds an M.Sc. in International Finance from NOVA School of Business and Economics and a B.A. in International Management from ISM Munich.