Drawing on recent publications and industry insights, this FinEquity Knowledge Guide brings together resources to 1) Understand the untapped opportunity that WMSME’s present for investors, donors and development actors given their role in economic growth; 2) Highlight specific frameworks and tools for investors to integrate a gender lens in their investment processes to support FSP’s serving WMSMEs; and 3) Share emerging good practices and case studies in gender lens investing to facilitate industry learning.