over 1.5 million different nonprofits in the United States over 1.5 million different nonprofits in the United States over 1.5 million different nonprofits in the United States Grant Space 1.5 million nonprofits approximately 1.5 million over 1.5 million different nonprofits in the United States over 1.5 million different nonprofits in the United States total of 1.5 million nonprofit 1.5 million nonprofit organizations 1.5 million established nonprofits in the US nonprofits 1.5 million 1 million over 1.5 million different nonprofits in the United States 1.5 million nonprofits There are 1.5 million nonprofit organizations in the US. 1.5 million over 1.5 million different nonprofits in the United States