The use of "my" or "our" in a group organization

I am the leading founder of a charity organization and I have come to a crossroads of sorts. When speaking in public, i will often times say "my organization" or "The organization that I founded." I've since wondered if this was wrong to say since there is about 5 unpaid people that passionately volunteer to moderate and aid me in the charities, planning, carrying out, and directing. Further, there is about 15 others that lend their unpaid volunteer time towards carrying out these charities. I would never be able to be successful without them. I feel as though I should say "my charity" because I have the strongest network and influence, but I wonder if I should say "our organization" so that I don't seem selfish with delusions that I do it on my own. Also, to give thanks and acknowledgment to the folks that volunteer their time. I dont want to be a Bono, so to speak.