In the last year, they've given 500 hours of their time to help people in Aylesbury town centre, but you might not even know they exist.
The Town Centre Chaplaincy team are in the shopping centres, the police station and the courts, offering advice and support to several people a week.
Catherine Turnbull-Ross is on the team - she says they offer something others can't:
"Sometimes people have got a real problem either at work or at home and those closest to them are either going through the same thing or they don't want to share something personal with their work colleagues.
"So this is an independent, non-judgmental person."
The chaplaincy team have been going since 2011, but have been out and about a lot more in the last year or so. Their main partners are the Street Angels, who work at night across the weekends.
Although mostly church volunteers, the team say their mission isn't to 'convert' anyone, but to offer support or just a chance to talk in whatever situation they're in.
Mark Knight, another person on the team, backed this up:
"A good chaplain is like a chameleon. They will become, in time, an accepted member of the team.
"So it's not a stranger anymore. This person becomes someone that people see as part of their team and they come to them knowing that that person understands, in some measure, the challenges that that person faces."
The team's easily identified by their blue jackets or shirts with 'Chaplain' written on the back.