The Book · 2026
From construction to security technology.
The book by Dr Raphael Nagel (LL.M.) draws the BOSWAU + KNAUER line together: from the Berlin construction firm of 1892 to a platform of autonomous security systems. Published in 2026.
What the industry needed, the industry did not deliver. So we built it.
Classical guarding no longer holds up against the reality of German construction sites, industrial premises and KRITIS facilities. Materials get more expensive, staff scarcer, loss ratios unpredictable. This book describes, from practice rather than theory, the form of technology that replaces improvisation. And why BOSWAU + KNAUER is the right name for it.
- Author
- Dr Raphael Nagel (LL.M.)
- Title
- BOSWAU + KNAUER · From Construction to Security Technology
- First edition
- 2026
- ISBN
- 978-3-912703-61-0
- Scope
- 20 chapters · 7 parts · approx. 79 pages
- Language
- German
Who this book is written for
Three clearly defined groups.
This book is not written for everyone. Anyone who recognises themselves in one of these descriptions is holding the right book.
Construction firms
Managing directors and board members of construction firms running projects above the single-digit million range, whose loss ratios have not been stable over the past two years.
Industry & logistics
Heads of plant protection, site security and industrial safety whose staffing costs are catching up with the effectiveness of their measures.
Security service providers
Owners and board members of security companies facing labour shortages and margin pressure, looking for a technology partner that reinforces them rather than replaces them.
Contents
Seven parts. Twenty chapters.
Readable in sequence or as a reference. The book ends with three standalone instruments: a security diagnostic in twelve questions, three routes to collaboration, an audit checklist.
- PART I
Origin
- 01 · Roots in construction
- 02 · Construction as the customer
- 03 · Reality on construction sites
- PART II
The shift
- 01 · A change in perspective
- 02 · Technology instead of improvisation
- 03 · Building competence
- PART III
The products
- 01 · Security robots
- 02 · Mobile video towers
- 03 · AI-driven video analytics
- PART IV
The benefit
- 01 · Security as an investment
- 02 · Control on the client side
- 03 · Scalability
- PART V
Market and clients
- 01 · Construction firms
- 02 · Industry and logistics
- 03 · Security companies
- PART VI
System and technology
- 01 · Hardware
- 02 · Software
- 03 · Integration
- PART VII
Future
- 01 · The construction site of the future
- 02 · The role of Boswau + Knauer
About the author
Dr Raphael Nagel (LL.M.)
Entrepreneur, investor, author. Responsible for the strategic direction of Quarero Robotics Deutschland GmbH in Filderstadt and therefore the BOSWAU + KNAUER brand. Areas of focus: physical security infrastructure, KRITIS compliance, construction industry. Further books and essays at raphaelnagel.com/books.
From book to platform
Where the arguments become products.
Security robots & video towers in detail
The technology the book discusses: sensors, AI anomaly detection, 24/7 patrol.
Market for security robots
Why these books are being written now: labour shortage, NIS2, cost parity.
History since 1892
The Berlin roots: KaDeWe, Hotel Esplanade, Oestertalsperre. The line the book traces.
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