Llamasoft's software helps companies model, design and optimize their supply-chain networks, using AI and algorithms to map out scenarios and mitigate potential risks. The Ann Arbor, Mich., company is backed by private-equity fund TPG Capital, which took a stake in 2017, and counts Boeing Co., Danone SA and Home Depot Inc. among its customers. This is Coupa's third acquisition this year. The company's platform helps businesses manage procurement, invoicing, payments, sourcing and other spending functions and has more than $1.95 trillion in cumulative spending by its customers under management. "We've pulled all these siloed processes together," Coupa CEO Rob Bernshteyn said.