Ingersoll-Rand Inc. is an Irish global diversified industrial company formed in 1905 by the merger of Ingersoll-Sergeant Drill Company and Rand Drill Company, rival companies that had each been founded in 1871. Ingersoll-Rand has been a constituent of the S&P 500 Index since replacing Pactiv Corporation on 16 November 2010 (it had previously been in the S&P 500 Index until it was replaced by Quanta Services in June 2009). Its legal headquarters are located in Airside Business Park in Swords, Fingal, County Dublin, Ireland, however the principal administrative headquarters where most executive officers, including the CEO, are located is in the Charlotte, North Carolina suburban town of Davidson