Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
TaxJar - TaxJar simplifies sales tax filing for eCommerce sellers.
FriendlyData - Communicate with databases like a human
Vertex Cloud - Vertex Cloud offers sales and use tax automation solutions.
SpreadsheetDB - A database that you can query with spreadsheets
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.