Our work can go from pure formula based workbooks, through simple VBA automation of a labour intensive process, through custom worksheet functions (UDFs), VBA, COM and automation add-ins, up to full scale n-tier enterprise systems that use Excel purely as one version of the presentation layer, with perhaps an alternative web front end.
We have written standalone executables that interact with Excel, COM DLLs to connect to other resources, native XLLs for performance, .net assemblies, and of course loads of VBA for all manner of things. The technology choice is yours.
It's possible that using Codematic for developing simple spreadsheets will not prove cost effective, but for anything non trivial our wealth of experience will show through. Research indicates that good developers are around 28 times more productive than poor ones, and around 10 times more productive than the average - worth considering when comparing day rates.
We can also offer testing services to other spreadsheet developers using our library of hundreds of unique spreadsheets. We can also help with configuration testing and deployment testing.
If you require any more information please get in touch.