Eliza Winans Rossman founded ALLINBKLYN, a women’s philanthropic initiative, in 2014.  In its first year of grant making, forty-one women formed a grant making community which benefits from a level of impact that most individual donors can’t achieve on their own. From January through May 2015, ALLINBKLYN members met and shared information about various Brooklyn nonprofits seeking financial support and made grants totaling $201,000 to 13 nonprofits benefiting the people and places of Brooklyn.

Having completed its second year of funding in May 2016, ALLINBKLYN's community of forty-six women, along with a growing number of supporters, has made grants totaling $233,000 to 14 Brooklyn nonprofits.