• Since 2009
  Professor of Innovation Management and Project Management at the RheinMain University of Applied Sciences (HSRM), Rüsselsheim, and Honorary Professor at the Frankfurt School of Finance and Management, Frankfurt am Main
• Scientific Director of Technopolis Deutschland GmbH, a research and consulting institute for innovation and technology policy, Frankfurt am Main
• 2018 – 2022
  Head of the IMPACT RheinMain project funded by the "Innovative University" programme of the Federal Ministry of Education and Research and the "Joint Economic Conference"
• 1999 – 2009
  Professor of Innovation Management and Managing Dean of the Frankfurt School of Finance & Management, Frankfurt am Main
• 1995 – 1999
  Head of the Society Division at the VDI/VDE Technology Centre for Information Technology, Teltow
• 1988 – 1995
  Consultant and lecturer for the organisation and implementation of European adult education as part of the activities of the European Social Fund
• 1988 – 1995
  Research assistant in the Department of Economics at the Johann Wolfgang Goethe University, Frankfurt
• 1993
  Doctorate with the topic "On the economics of the emergence of technologies"
• 1990 – 1991
  DAAD guest lecturer for economics at the University of Leipzig
• 1990
  Research Fellow at Columbia University in New York
• 1983 – 1988
  Studied economics at the Johann Wolfgang von Goethe University, Frankfurt am Main

• Economic technology and innovation research
• Clusters
• Climate and sustainability
• Smart living

• Member of the  Expert Council for Climate Issues
• Chairman of the "Go-Cluster" advisory board of the Federal Ministry for Economic Affairs and Climate Protection until 2024
• Chairman of the Carolinum Foundation
• Member of the Supervisory Board of Gewobau Rüsselsheim

• Innofuels, Federal Ministry for Digital and Transport Affairs
• Smart Living Hessen Cluster, HessenAgentur (until the end of 2023)
• IMPACT RheinMain as part of the Innovative University programme, Federal Ministry of Education and Research (until the end of 2022)

Expertenrat für Klimafragen (Hg.), 2023, Prüfbericht zur Berechnung der deutschen Treibhausgasemissionen für das Jahr 2022

Expertenrat für Klimafragen (Hg.), 2022, Zweijahresgutachten 2022

Expertenrat für Klimafragen (Hg.), 2022, Prüfbericht zu den Sofortprogrammen 2022 für den Gebäude- und Verkehrssektor

Expertenrat für Klimafragen (Hg.), 2022, Bericht zur Vorjahresschätzung der deutschen Treibhausemissionen für das Jahr 2021

Blind, Knut, Marianne Kulicke, Thomas Heimer, Stephan Kreuzter, Heike Nachtigall, Lisa Pschorn, Christian Rammer, Bettina Müller, 2021, Querschnittsevaluation "Unterstützungslandschaft für innovative Gründungen"

Expertenrat für Klimafragen (Hg.), 2021, Bericht zur Vorjahresschätzung der deutschen Treibhausemissionen für das Jahr 2020

Rammer, Christian, Lena Füner, Sandra Gottschalk, Hannes Marks, Thomas Heimer, Heike Nachtigall, Jerome Treperman, 2020, Zusammenhang zwischen der Durchführung von Digitalisierungs- und Innovationsvorhaben im Mittelstand, Bericht an die KfW Bankengruppe