Church Members Fundraising in the Streets?

For years, I have seen members of a church (I can't remember the name) on street corners throughout the City asking for money. They usually hand you a little paper with the church name and apparently the money goes towards a recovery program.

I remember looking up this church once, but found nothing about a recovery program.

Does anyone have insight on this church? How about the recovery program? Are those people in the streets volunteers?

It's the only church I've seen or heard of that fundraises in that manner.