Few companies have fared as well as Monster Energy over the past two decades. In the last 20 years, its stock has risen more than 62,500 per cent. Its canny marketing approach targeting extreme athletes has reaped rewards, while it has also surfed the tidal wave of growth in energy drinks. Its market cap now sits at a hefty $56.3 billion. And like so many multinationals, Ireland plays a key role in its operations – from finance to intellectual property warehousing to manufacturing. It might not have the scale of an Apple or a Pfizer, but it is a significant…