About us

Today’s infrastructure challenges and opportunities call for multi-disciplinary and cross-sectoral perspectives. Warnsdag is a provider of management consulting services. Our experience covers the life cycle of projects, from planning, design and construction, to operations with particular emphasis on total project management for infrastructure development and energy distribution.

Warnsdag is founded in 2010 by William Hartman, senior manager and consultant with more than 25 years of experience in urban planning and infra development. Translates long-term visions into functional, sustainable and esthetical public value.