A training script and a full professional explainer video in English required

We are looking for a help with putting together a training script and creating a professional explainer video in English for a web-based business application. Each video will be up to 2 minutes in length and will cover functions on a particular function in the application.

We will provide with an induction training on how to use application and will be expecting you to come up with a script of how is the best to explain the function to an end user, and then record a full professional video based on the script.

The result should come in the form of the following deliverables:
- Script
- YouTube-ready video in full HD
- Audio file with voice over
- Video without voice over (to allow for non-English translations)

As videos will be different in length, for comparison purposes please use one 2-minute video when placing your bid. In order to be considered please provide references to at least 2 videos you have done before.

Other things to consider:
- Application is still in development, however we expect there to be around 20 videos over the course of the next few months.
- It can take us up to 10 days to sign off on a video and materials provided.
- We will require an NDA to be signed

We will only consider native English speakers, preferably from the UK