Bristol is a privately held developer of software to manage business transactions, and is mainly used by financial services and insurance companies.
The vendor hopes to package its business management software with Mercury's testing and optimisation software to offer customers a more complete IT management package.
"For the first time, customers will have a single software vendor that enables them to manage end-to-end business transactions, from end-users all the way through custom applications and mainframe environments," said Deborah Traub, vice president of management software at HP.
Financial terms of the Bristol deal were not disclosed. HP hopes to complete the acquisition within 30 days.
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