Christoph Lorenz GmbH Wirtschaftsprüfungsgesellschaft was founded in 2006 by Christoph Lorenz, a former tax partner at KPMG. Christoph Lorenz GmbH Wirtschaftsprüfungsgesellschaft is a small consulting firm devoted to provide client oriented, individual solutions. We aim to provide specialised tax consulting services combining a high level of experience with an individual approach to specific client needs.