Total cost of ownership (TCO) models have increased EBITDA margins by 10-15 percentage points in the lab sector and can be used in any area of healthcare, says Gontard. A Swiss economist, he has perfected his model over 15 years, working first for Viollier, the second largest Swiss lab group, then at Integrated Diagnostics in Egypt and now at Citilab probably the second largest lab group in Russia. Gontard is speaking on TCO at Healthcare Europa 2015 on April 28 in London.