By Blake Brittain

Feb 4 (Reuters) - Pharmaceutical software company Veeva Systems VEEV.N has sued Microsoft MSFT.O in California federal court, alleging Microsoft's Viva business software infringes its trademarks.

Veeva told the courton Monday that Microsoft Viva, a suite of applications for employee communication and engagement, will cause consumer confusion with Veeva's software.

Veeva asked the court to force the tech giant to stop using its Viva branding and requested an unspecified amount of monetary damages.

Spokespeople for Microsoft did not immediately respond to a request for comment on Tuesday. A Veeva spokesperson said the company is confident in its case and looks forward to "resolving the issue."

Pleasanton, California-based Veeva specializes in cloud-based software for the pharmaceutical industry. Its products include software for managing customer relationships, content management and data analysis.

The complaint said that Microsoft offers similar business management and collaboration software under the Viva name. Veeva said Microsoft's similarly named software will cause market confusion, and noted that news articles and transcripts of Microsoft earnings calls have referred to its software as "Veeva."

The case is Veeva Systems Inc v. Microsoft Corp, U.S. District Court for the Northern District of California, No. 3:25-cv-01110.

For Veeva: Morgan Smith and Douglas Rettew of Finnegan Henderson Farabow Garrett & Dunner

For Microsoft: attorney information not yet available

(Reporting by Blake Brittain in Washington)