Excel List Data Lookup and Entry/ Protecting

I am creating a list of lenders nationwide and have around 270 accumulated at the moment. Each lender is described by categories such as "interest rate" or "contact phone #" etc. I am looking for help filling in basic data pulled from a website (I have already located the website for each lender). I have a few fields that need to be populated for each lender and it has taken me about 2-3 minutes per lender. Also, I would like to find a way to prevent customers from copy (or cut) and pasting on to a new sheet and re-selling or adding to their own lists. I have done some preliminary research and apparently Excel provides very little defense in this respect (I can't simply protect the whole sheet as I would need clients to still be able to sort and filter, delete rows, add notes, etc) SO I need someone to help me in a dual capacity: 1. Basic Data Entry: About 10-16 hours worth (And to provide guidance as to a simple way to keep adding to and edit this list in the future) 2. Finding a way to protect my work (May require some advanced coding of VBA) Potentially a very simple job for the right person (Please reference sample below for more clarity) The files and information shared would be completely confidential