I don't think you've provided enough information to give you a proper answer. What sort of laser beam tester is it? A level? I suspect it's something else. I'm also not very clear on what a radiation monitor even is. I know I currently don't have access to a facility that could calibrate that kind of equipment since I've never had the need. That's pretty exotic equipment compared to the pedestrian stuff we have here.
As a general rule, when I'm faced with this situation i.e. having to have unfamiliar equipment calibrated, I generally start by contacting the manufacturer. Many of them perform their own calibrations or have a company they contract to do so. I hope this has been at least somewhat helpful.
Mark