OWNER
Ralf Maier
Dipl.-Ing. (FH)
Landscapearchitect BDLA, IAKS
1985 – 1988 Training as a gardener
1994 – 1995 gardener school in Cologne Auweiler
1995 – 1999 Diploma at the University GH Essen
2000 – 2002 Freelancer for various offices
2002 – 2007 Partner in the office ambientes Cologne / Ratingen
From 2008 own office in Cologne
Member of the following committees:
Association of German Landscape Architects (bdla): Working Group Economics, Spokesperson Tourism and Leisure (bdla nrw). Forschungsgesellschaft Landesentwicklung Landschaftsbau e.V. (FLL), committee leader “Skate- und Bikefacilities” and “MTB Facilities”, member of the rules committee “Sportplatzpflege”. Expert for skate and bike equipment.
EMPLOYEE
David Welter
Dipl.-Ing. (FH)
landscapearchitect, qualified playgroundinspector
2003 – 2008 study Landscape Architecture, GHS University Duisburg-Essen and Technical College Berlin Diploma (FH)
2009 – 2017 employment in various offices
2014 qualified playground inspector acc. FLL BSFH
Since June 2017 employed at maierlandschaftsarchitektur
Balint Rosner
Dipl.-Ing.
BBA
2008 graduation
2008 – 2011 Bachelor of Business Administration (BBA) University of West Hungary
2012 – 2018 study Landscape Planning and Landscape Architecture University of Natural Resources and Life Sciences Vienna Master of Science
Since March 2019 employees at maierlandschaftsarchitektur
Daniel Branchereau
M.Sc.
2010 graduation
2011 – 2018 study Architecture Bergische Universität Wuppertal Master of Science
2019 Intern at maierlandschaftsarchitektur
Since May 2019 employee at maierlandschaftsarchitektur
Christine Langsdorf
Secretary
1977 – 1979 training office assistant
1979 – 2018 transcriptionist, secretary and clerk in various companies
Since 2018 employee at maierlandschaftsarchitektur
Mattia Maier
Assistent Management
Since May 2019 employed at maierlandschaftsarchitektur
Rodrigo Jose Vidales
Argentine architectural completion
2011 High School (Argentina)
2012-2019 studied architecture at the National University of Cordoba, Argentina
2015-2019 designer at the BMX Association of Cordoba (ACBMX)
2018-2019 Freelance designer in Argentina
Since October 2019 employed at maierlandschaftsarchitektur
Julia Kassung
Dipl. Designerin (FH)
Since November 2019 employed at maierlandschaftsarchitektur
Peter “Dietsches” Diepes 
- Skateboarding since 1976
- trained carpenter
- Ramp builder since 1989: e.g. Münster / Dortmund Monster Mastership
Since May 2017 Freelancer at maierlandschaftsarchitektur
Mathilda
Since January 2009 at maierlandschaftsarchitektur