Cenosco is a unique software company and has been so for the last twenty years. We develop products in close cooperation with the engineering disciplines that use them. Sifpro software ensures good engineering practices for the application of safety instrumented functions being fully compliant with IEC 61508/61511. Companies all over the world use SIFpro as the strategic sil assessment software tool for Safety Integrity Level (SIL) assessments and Safety Instrumented System (SIS) design studies. A rigorous and systematic approach to managing health, safety, and environmental procedures to create a safe and secure workplace, integrating safety-critical instrumentation with current technological developments in automation, control and optimization.