The Einstein Center for Mathematics Berlin [http://ecmath.de ECMath] is a platform for the consolidation of the collaborative mathematical excellence projects in Berlin, including the Research Center [[Matheon]], the Berlin Mathematical School [http://math-berlin.de BMS], and the German Center for Teacher Education in Mathematics [DZLM], in an internationally visible framework, using the organizational structure of Matheon as a role model. ECMath establishes the institutional basis for innovative first-rate research in mathematics ranging from application-driven as well as theoretical basic research, education of young researchers, and professional development of scientists in academia, schools, and industry, up to the transfer of mathematical research results into industrial practice.