K&L Gates passed the $1 billion revenue mark in 2009, the firm announced Friday. The Pittsburgh-based firm saw gross revenue increase by 8 percent, to $1.034 billion, while profits per equity partner (PPP) also increased to $861,000, up 1 percent from $855,000 last year.

Revenue growth was driven largely by the firm’s March 2009 merger with Chicago-based Bell Boyd & Lloyd, which added 250 lawyers and an office in San Diego. The firm also continued its overseas expansion with new offices in Frankfurt, Singapore and Dubai.