A firm or individual that is purchasing another firm or asset. Bloomberg Financial Dictionary
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acquirer UK US /əˈkwaɪrər/ US /-rɚ/ noun [C]
► a person or company that buys another company: an acquirer of sth »
Over the past few years, he has been a single-minded acquirer of small Web-development agencies.
»a possible/potential/would-be acquirer
Financial and business terms. 2012.