Sure thing. I used Pro Pools of Hagerstown MD. I'm not sure how far they travel for installs. They are a local business here in Hagerstown and not a chain store, if that matters to you. Baltimore is quite a haul though.
With the summer rapidly coming to an end I will admit I was anxious during the build of the time going by. It seemed that everything took just a tad longer than I originally wished for. Permit took a few days more. It rained right when concrete was due in... lost a whole week on weather there. It was never slow work or "wasting time"... just hurry up and wait kind of time. But all in all it was just over a month for the whole build. Can't complain about that. Although, I had no "extras" like lights, water jets, diving boards, or anything like that.
What I can say about Pro Pools (in case anyone ever looks for a recommendation here) is that they KNOW building pools, and build them right. I feel confident after watching the process that it was done right, with no corners cut. Things were never "close enough"... things were done properly. They were professional, courteous, worked with me on what I wanted, and delivered exactly what I expected. The concrete company (Nicholas Construction) did great work and, like Pro Pools, took a lot of pride in their product.
Being new here myself, I haven't read up yet on etiquette about referrals and dealing with companies who may or may not be site sponsors so let me know if I need to take things offline. I'd be happy to discuss more via private message. Not sure how much this will help you, but I hope it is useful.