Halyard Capital has acquired Tranzact Information Services, a Boca Raton, Fla.-based provider of automated marketing services, from Tranzact. No financial terms were disclosed for the deal, which will result in a newly-independent company renamed Datamyx. www.halyard.com
Lyceum Capital has acquired Clearswift, a British provider of digital security software. No financial terms were disclosed. www.clearswift.com
Nokia Siemens Networks (NSN) has agreed to sell its WiMAX business to NewNet Communication Technologies, a Shelton, Conn.-based portfolio company of Skyview Capital. Financial terms were not disclosed. www.nokiasiemensnetworks.com
Remedy Health Media, a portfolio company of Veronis Suhler Stevenson, has acquired HealthCentral, an Arlington, Va.–based provider of online clinical and patient community resources. No financial terms were disclosed. HealthCentral backers included Allen & Co., The Carlyle Group, Polaris Venture Partners and Sequoia Capital. www.remedyhealthmedia.com
West Corp. has agreed to acquire HyperCube, a Lancaster, Texas–based provider of tandem switching services to telecom providers. No financial terms were disclosed. West Corp. is a portfolio company of THL Partners, Lexington Partners and Quadrangle Group, while HyperCube backers include Kamine Credit Corp., Annex Capital and Chambers Street Investors. www.west.com