When a Group of people share the same problem and have the same vision it is possible to have a bespoke solution developed whilst sharing the cost of development across the group. This means a £5,000 project could be developed for as little as £50 per entity.
You may wish to approach your professional associations or regulatory bodies to see if there is an appetite for your project.
If your sector are all making similar purchases of software with excessive fees then Crowd Funding would ensure everyone gets exactly what they want and more importantly they become part of the "User group" to ensure the system is kept up to date with changing conditions in your industry.
Alternative versions for different sections of your industry are simple to create once the basics are agreed, by pooling your objectives and the funding you only pay once for the development instead of all paying.
Often we find Companies using software that has either not been adapted to a specific sector or it has fallen behind and no longer meets the needs of modern businesses.
Put together a comprehensive list describing the best features of the system you already use and then detail the worst features, describe the process you need to achieve in detail and share it with us. If we already have a system that meets 80% of your needs then with a little adaptation you may save yourself a lot of work.
We will create a project that you sign off, then promote the project to all supporters and if they respond your development project will likely start in around 30 days or other time scale we have agreed.
Early adopters will be engaged, ideally some will assist with checking features and functions, their feedback ensures the benefits are tangible and appropriate, their time is going to be rewarded with the benefits they receive for assisting the project.