Women still facing glass ceiling in 2010: study

The study found that 136 of the Fortune 500 companies had no women executives. Among those with no women were Exxon Mobil, Berkshire Hathaway, Citigroup, Costco Wholesale and Sears, the study said.

Women held 14.4 percent of executive officer positions in 2010, up from 13.5 percent in 2009, and female executive officers held 7.6 percent of the top earning positions, up from 6.3 percent in 2009, the 2010 Catalyst Census said.

The best five companies in terms of women in the executive suit were: Gap 50 percent, H&R Block 50 percent, Limited Brands 50 percent, TIAA-CREF 50 percent and Western Union 45.5 percent.

Women held 15.7 percent of board seats in 2010, a 0.5 percentage point gain over 2009, and more than 10 percent of companies lacked any women on their boards in 2009 and 2010.