A majority of the manufacturing jobs left Warren County's largest city once Ingersoll Rand closed operations in 2000.Novak, Steve. "TIMELINE: The rise and fall of Ingersoll Rand in Phillipsburg, and a glimpse at what the future may hold", The Express-Times, October 29, 2018, updated September 24, 2019. Accessed November 23, 2021. "For a century, Ingersoll Rand was Phillipsburg. From 1903 to 2000, the company was the town's biggest employer and the biggest taxpayer. It wasn't unusual for multiple generations of a family to work there. They made rock drills that helped develop the interstate highway system. They made pumps, steam condensers, and rock compressors... But the company slowly declined from its mid-century peak of about 5,000 employees."
