Hannelore Erica Schlieker-Bollmann

Ringdale, Inc. supplies network enhancing connectivity products. It offers networking, corporate network printing, building access control, time and attendance recording and management as well as energy monitoring and management solutions. The company was founded in 1997 and is headquartered in Georgetown, TX.

Ringdale (UK) Ltd. supplies network enhancing connectivity products. Its products include enterprise software, DC systems and generation, instruments, application software, marea access solutions, home automation, networking - fax, workflow, hydraulics and building automation and energy management. The company was founded by Klaus Bollmann in 1986 and is headquartered in Georgetown, the United Kingdom.

Part of Flywire Corp., WPM Education Ltd. provides payment software solutions for universities and colleges. The company is based in Burgess Hill, UK. The British company was founded in 2000 by Jan Bollmann, Holger Bollmann. WPM Education was acquired by Flywire Corp. on December 15, 2021.