According to https://opensourcepledge.com/join/ https://opensourcepledge.com/join/, it appears that Open Source Pledge doesn't actually collect money. They are

According to https://opensourcepledge.com/join/ https://opensourcepledge.com/join/, it appears that Open Source Pledge doesn't actually collect money. They are simply a listing page for companies that have met some criteria for open source donations.