Chan Zuckerberg Initiative — Total Funding Raised: $45 billion

Note: While the source URL is correct (Chan Zuckerberg Initiative Wikipedia page) and the founding date matches the temporal context (2015-12), the provided excerpt does not include any data about funding amounts or the valuation of the initial pledge. The claim requires specific financial information that is not present in the text excerpt provided. To verify this claim, one would need to access the full Wikipedia article or other sources that explicitly state the funding figures.

Note: The provided excerpt from the Wikipedia article contains only basic organizational information (founding date, founders, headquarters, divisions, etc.) but does not include any data about funding amounts or the valuation of the initial pledge. The claim about $45B in total funding as of December 2015 cannot be verified or contradicted based on this source text.