SANTA BARBARA, CA; LONDON, UK; AMSTERDAM, THE NETHERLANDS; November 6, 2006 — Yardi Systems Inc., the industry leader for asset and property management solutions, today announced that the UK-based Erinaceous Group plc has selected Yardi for its property and asset management requirements. Erinaceous will implement Yardi Voyager™ International across all its 40 UK offices and aims to have 150,000 properties and 700 users on the system by the time of complete go-live in 2008.