The Board and the Operational Management teams regularly monitor and develop a range of financial and non-financial performance indicators to allow them to measure performance against expected targets. These can be analysed under various categories. The following represents a selection of these indicators.

In 2015, our business delivered its strongest performance since it was formed over 40 years ago
Key performance indicator
Financial KPIsLink to strategyRelevance and performanceHistoric performancePosition on target?Targets
Group total revenueGrowthPeopleCor StrategyValue AddAcquisitionsOur clear strategy for growth makes turnover an important barometer of the Group's success. Turnover has grown significantly over the last five years, increasing by 80% to £154.4m (2010: £85.4m), equating to 12.5% p.a.To continue to grow Group revenue
Operating margin enhancementGrowthPeople  Value Add Growth is about more than just the top line. Controlling our cost base is a key part of our investment plans. Reflecting our success in this area, operating margin has increased by 10.78% from a negative position of (2.5%) in 2010 to 8.28% in 2015. Margin growth since 2011 has been 23.4% p.a.To continue to grow operating margin
Group underlying profit before taxGrowthPeopleCor StrategyValue AddAcquisitionsUnderlying profit before tax best measures the underlying performance of the business. Our underlying profits have grown by over 1,400% (or 73.9% p.a.) since 2010To continue to grow Group underlying profit before tax
Cash generation from underlying EBITDAGrowthPeople   Our quality of earnings is reflected in our ability to consistently turn underlying EBITDA to cash. We have successfully generated positive cash flows from underlying EBITDA every year since 2012To continue to generate cash from underlying EBITDA
Return on Capital Employed ('ROCE')GrowthPeopleCor StrategyValue AddAcquisitionsROCE measures the return that we are able to provide to both our equity and debt investors. Maintaining this continues to be a key focus of the Group. Since 2010 our ROCE has grown by 50.6% p.a. to 18.6% (2010: 2.4%)To maintain Return on Capital Employed (ROCE)
Underlying diluted earnings per share ('EPS')GrowthPeopleCor StrategyValue AddAcquisitionsEPS is a key target for the Group and our clear strategy for growth is focused on increasing this ratio year on year. Over the last five years, underlying EPS has increased by 8.61p to 8.68p (2010: 0.07p)To continue to grow underlying diluted earnings per share
Key performance indicator
Non-financial KPIsLink to strategyRelevance and performanceHistoric performancePosition on target?Targets
Multinational OEM penetrationGrowthPeopleCor StrategyValue AddAcquisitionsOver 60% of the Group's revenue is derived from over 40 multinational OEMs despite operating at a less than 25% site penetration. Working to increase this penetration is a key part of our clear strategy for growthMultinational OEM penetration 2015: an average 25% penetration rate across our 40+ multinational OEM customersTo increase our penetration in our multinational OEM customers
Broaden skills of managementGrowthPeople   Over the last five years we have developed and implemented a new training matrix. This has been designed to develop both our people already in leadership roles and also those individuals identified as being our leaders of tomorrowHistoric performanceLooking ahead, 2016 is about both hitting a 75% completion rate and developing stage two of the training matrix