Primary Documentation Source: USAspending.gov
The most authoritative public record for U.S. federal spending is USAspending.gov, the official U.S. government transparency site for awards, grants, and contracts. Searches there show extensive USAID funding to EWMI (a New York-based nonprofit focused on democracy, rule of law, judicial reform, and civil society programs in post-communist and developing countries).
EWMI has received over $270 million in USAID grants over roughly 15 years (plus additional obligations/contracts totaling around $90 million in some reports), with examples including:
$31.2 million in one recent full fiscal year.
Multiple active/recent awards, such as grants for programs in Uzbekistan and other regions.
EWMI's donors and partners explicitly include OSF (Open Society Foundations/Institute), alongside USAID, the U.S. State Department, Rockefeller Brothers Fund, and others. It has collaborated with Soros initiatives since at least the 1990s on post-Soviet/Eastern European reforms.
You can verify specific awards by searching "East-West Management Institute" or recipient UEI LZ4PMD8AJ2J7 on USAspending.gov. Examples include grants like 72011521CA00002 and contracts like AID165C1600003.