Following a long tradition in a series of bi-anual workshops Helmoltz-Zentrum Berlin (formerly BESSY) and FZ Rossendorf are hosting this years superconducting rf workshop in Berlin, Germany ( ) from September 21 to 25, 2009. RI Research Instruments is pleased to support the organizers with a financial contribution and to present our company at the industrial exhibition of this workshop. The srf workshop presents rf superconductivity as a key technology for many recent and future accelerator applications. SRF 2009 will cover the latest advances in science, technology, and applications of superconducting RF. We are looking forward to meeting you at the workshop for many interesting discussions.