improving microbiology SSI Diagnostica A/S is a leading microbiology company in Scandinavia. We develop, produce and sell the best in vitro products available in the market. Every day, we strive to improve microbiology. A flexible and customer oriented approach provides you with thoroughly tested and innovative quality products at the right time. With more than 100 years of experience we ensure you high quality products. A proud tradition for research in Denmark is the foundation for our products making a difference in more than 50 countries. SSI Diagnostica is your one stop shop for innovative diagnostics for microbiology.Improving Microbiology.