We do mojoPortal development, hosting, etc and we are based not far from you near Brecon, Mid Wales. Here's a page about what we do. It's on a web site that has only been partly developed, so not a great demo of our skills!
You'll see we have a strong remit to work for environment benefit - I see from your web site that your business offers testing and sample analysis - I think this fits?
Contact me on crispinf (at) esdm dot co dot uk if you are still needing help.