Allied Universal: Allied Universal buys N.Y. security firm

Allied Universal has again added to its growing portfolio with the purchase of a New York-based security company, adding more than 6,000 employees to the local company's workforce. The facility security company, which has offices in Conshohocken, last month added to its portfolio a Massachusetts-based security firm, one month after finalizing the merger of Conshohocken-based AlliedBarton and California-based Universal Services of America. Exclusive: La Colombe's co-founders reflect on 20 years...