NEEDHAM, Mass., November 1, 2006 – PTC, today reported revenue of $245.5 million for the fourth quarter ended September 30, 2006, up 26% from the same period last year. For fiscal year 2006, PTC reported total revenue of $854.9 million, up 19% from fiscal year 2005. Total license revenue for the fourth quarter of 2006 was $84.6 million, up 39% from the same period last year. Total license revenue for fiscal year 2006 was $263.5 million, up 26% from fiscal year 2005. The results for the fourth quarter of 2006 reflected continued acceleration in organic revenue growth and the contribution of recently acquired Mathsoft.