Institute for Research on Poverty by University of Wisconsin-Madison.
Catalyst is an organization "working globally with businesses and the professions to build inclusive workplaces and expand opportunities for women and business".
Women's Business Ownership publications by The Wisconsin Women's Council.
Economic Policy Institute is a nonprofit, nonpartisan think tank that "seeks to broaden the public debate about strategies to achieve a prosperous and fair economy." Site includes data and analysis, especially from public opinion polls.
Institute for Women's Policy Research (IWPR) website. Below is an example of their publications and relevant reports.