Beckman Coulter, Inc. is a Danaher Corporation company that develops, manufactures, and markets products relevant to biomedical testing.

The company was founded by Caltech professor Arnold O. Beckman in 1935 as National Technical Laboratories to commercialize a pH meter that he had invented.

[7] In 2005, the company acquired Diagnostic Systems Laboratories (DSL) based in Webster, Texas.

In 2007, the company acquired the Flow Cytometry Business Group of Dako North America, Inc.

[8] In February 2011, Danaher announced that it has entered into a definitive merger agreement with Beckman Coulter.

[12] On January 3, 2019, Beckman Coulter Life Sciences announced the acquisition of Labcyte, Inc., a privately held manufacturer of acoustic liquid handlers.

On May 2, 2019, Beckman Coulter finalized their acquisition of EDC Biosciences, a privately held manufacturer of acoustic liquid handlers.