Eh? Is there a particular organization that you are claiming they financially support? Like, a specific place they are sending money to? I’m not sure what you mean exactly.
Judging from the video description, while I would read a text based version, I don't respect the source enough to be willing to watch a video of it. Videos suck as a way to answer simple questions with simple answers. They are an absolutely terrible medium for that.
Can you instead answer the simple question : "What is the name of the legal entity which you allege duck duck go is providing money to, and which you identify as "antifa" ?