- Brad Postle, Ph.D. - The Postle laboratory, in the Department of Psychology at the University of Wisconsin-Madison, investigates human memory function with neuroimaging, neuropsychological, neurodisruptive, and experimental psychological methods.
- Cement Process Engineers - Process engineering for the world cement manufacturing industry.
- David Postle Associates - Web site of David Postle's business.
- Kick-Ass IT Consultants Ltd - Company website of Helen Postle.
- Postle Family Tree - A Postle Family Tree compiled by Helen Postle
- Postle family tree - Ken Postle has put a Postle family tree online with over 600 people recorded.