Virtually every firm claims that it is committed to helping women succeed. And they all seem to offer an array of women's programs — affinity groups, business-development training and work/life balance initiatives. Firms talk a good line, but how many can demonstrate that they are promoting a strong percentage of women into the equity-partner ranks? We probed that question by compiling partnership data as part of The National Law Journal's NLJ 250 survey, which ranks the largest firms in the United States by headcount. [refers to Fragomen, Del Rey, Bernsen & Loewy, Ballard Spahr, Jackson Kelly, Ice Miller, Best Best & Krieger, Ford & Harrison, Cravath, Swaine & Moore, Sullivan & Cromwell, Cahill Gordon & Reindel, Simpson Thacher & Bartlett, Wachtell, Lipton, Rosen & Katz]