Holger Michael Keller
Visionary for Digital Networking | Google Workspace Expert | Strategic Advisor
Holger Michael Keller (born 1962) is a distinguished IT pioneer and entrepreneur who has been developing innovative software solutions and pushing the boundaries of digital collaboration since 1989. His career is an early symbiosis of demanding academic theory and high-caliber research practice, which laid the foundation for his current expertise in Google technologies, data sovereignty, and networked collaboration. He develops solutions that combine technical excellence with the strategic narrative of human-AI collaboration.
Core Competencies & Expert Status
Google Workspace & AI Automation
Specialist for migrating complex business processes to cloud environments and training others in Google Workspace (G Suite) and Google Apps Script. Focus on effective integration of AI for gradual automation of information flows and revolutionizing productivity.
Business Process Reengineering
Specialist for analyzing, visualizing, and restructuring complex business processes (UML) with the aim of increasing efficiency and automating decentrally operating teams.
Software Engineering & Architecture
Extensive experience in object-oriented system analysis, reengineering of legacy systems, and deep practice in Full-Stack Development (Google Apps Script, JavaScript, HTML) for web applications.
Strategic Management & Data Sovereignty
Many years of experience in founding and managing IT companies as well as strategic consulting for shaping a secure, self-determined digital future.
Pioneer & Entrepreneurial Resilience
His profile is that of a "Digital Architect and Structural Engineer": He relies on the foundation of real project successes and the creation of sustainable structures rather than purely academic titles.
- Research-oriented Practice (1984–1990): Research assistant in technically innovative projects at the Institute for Machine Tools and Industrial Engineering (WBK) as well as at Digital Equipment (CEC) and Standard Elektrik Lorenz (SEL).
- Pioneer in the DACH Region (iBO.App): Development of a holistic system for organizing networked teams long before online collaboration became an industry standard.
- Long-term Business Solutions: Development of a Retail Controlling System for Esprit de Corp.
- Crisis Management & Leadership: Deputy CEO of KANTHOR Software-Werkzeuge AG. In 1997, as a single father of three children and AG board member, he mastered the balancing act between career and family.
Professional Career (Excerpt)
Since 2010
Freelance Computer Scientist; Focus on Google Workspace, Migration, and Mobile Asset Development.
2001 – 2003
Business Development Manager at Entory AG (now NTT Data).
1997 – 1999
Deputy CEO of KANTHOR Software-Werkzeuge AG.
1991 – 1996
Head of Department for Commercial Systems and Marketing/Sales at Computec GmbH.
"Your Data. Your Life. Your Freedom."
Holger Michael Keller understands technology as a tool for strengthening human freedom of decision. His goal is a networked world that promotes prosperity and security without sacrificing the sovereignty of the individual.
Articles by Holger Michael Keller
AI Revolution: Why 'Too Late' Is Just a Feeling
Have you missed the boat? We show you how to bridge the two AI chasms and go from hesitator to AI orchestrator.
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Digital Sovereignty: From Passenger to Pilot of Your Transformation
The goal of the journey: +50% revenue and -20% effort through mastery in collaborative intelligence.
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At the Crossroads of Humanity: Why Collaboration Is the Most Important Skill in 2026
Global crises are often a failure of project management. Learn how a collaborative mindset minimizes existential risks.
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Digital Identity 2025: Why Google Workspace Is Your Shield
AI manipulations and identity theft are real dangers. Learn how to proactively protect your digital assets.
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Escape the Digital Illusion: Why Authenticity Is Key
In a world of filter bubbles and attention economy, ASSISTENT.digital shows a way to genuine, human collaboration.
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BOARDING: Your Strategic Start – Inspired by Tech Giants
Why we invest in your potential like Scale AI and the Thiel Fellowship to prepare you for hyperscaling.
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Increase Productivity, Overcome Habits: How Sustainable Is AI with Google?
AI consumes resources. Learn why we rely on Google as a partner to increase your productivity in an ecologically responsible way.
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Order in Digital Chaos: The Operating System for Your Success
Version conflicts and data silos slow down your company. We show you how Google Workspace creates systemic order.
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Navigate Through the AI Revolution: How to Assert Yourself in Change
AI does not replace jobs, it transforms them. Learn how augmentation extends human capabilities and redefines roles.
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Your Career Kickstart in the AI Age: Solving the Experience Paradox
How do career starters gain experience when AI takes over entry-level tasks? We show you the way to the 'job-ready' candidate.
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Navigating the AI Turning Point: Why Pure Automation Often Fails
40% of AI projects fail. Learn what we can learn from the Klarna case study about the AI productivity paradox.
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Are You Ready for the AI Revolution? Why 'Too Late' Is Just a Feeling
Have you missed the boat? We dispel the myth and show you the way across the two AI chasms.
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The Prompt Engineer: From Hype Job to Universal Core Competence
Why 'Prompt Engineer' is disappearing as a job title but becoming indispensable as a skill for every knowledge worker.
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Between Technology and Humanity
In a time of rapid technological advances, the question arises: What does this mean for us as humans? Will we become superfluous in a world full of artificial intelligence?
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Does AI Surpass Humans?
A recent study shows that AI has passed the Turing Test. What does this mean for the future of human interaction?
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More Than Just Tech
How ASSISTENT.digital helps you achieve your goals - with human support and AI.
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Your Key to Lifelong Learning
At ASSISTENT.digital, we are convinced that lifelong learning is the key to success in today's fast-paced world.
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More Than Just Technology
How ASSISTENT.digital helps you unfold your unique 'Brand DNA' and integrate it into your business processes.
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More Than Just Bits and Bytes
How ASSISTENT.digital helps you use knowledge and grow in a complex world.
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You Don't Have to Protect People's Data, But Protect People from Their Data
We live in an era of data overload. At ASSISTENT.digital, we believe that the human must be at the center of data protection.
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Revolutionize Your Onboarding with HI & AI-Supported Solutions
Onboarding is often tedious and time-consuming. At ASSISTENT.digital, we have developed a duplicable and customizable onboarding service.
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From the 'New Power of the Gulf' to Your Revolutionized Productivity
The AI revolution is in full swing. Gemini 2.5 Pro in Google Workspace is your key to benefiting from this development.
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More Than Just a Chatbot: How Gemini Really Changes Your Work in Google Workspace
Gemini is not a separate tool, but an intelligent partner deeply anchored in the apps you use every day.
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The Future of Work Is Now
We are in the midst of a revolution. Artificial Intelligence (AI) is changing the world of work at a rapid pace.
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AI Revolution in Everyday Office Life
In an era where Artificial Intelligence (AI) is no longer just a pipe dream but a tangible reality, we are facing a paradigm shift.
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The True Opportunity of a Good Start: Why Optimal Onboarding Is Crucial.
A structured start is not a cost factor, but the most important investment in your employees and projects.
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The Role of AI for Business Success of the Future
The development of artificial intelligence is not just a technological trend, but a fundamental shift in the way companies must operate.
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The AI Revolution: Why Jeff Bezos Is Betting Big on Artificial Intelligence
Jeff Bezos invests 95% of his energy in AI. What does this horizontal shift mean for your business?
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ASSISTENT.digital: Your Navigator in the Digital Future
The world of work is undergoing rapid change. ASSISTENT.digital supports you in actively shaping the opportunities of digital transformation.
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