1099 Pro - 1099 Pro is a 1099 e-filing software solution.
TaxJar - TaxJar simplifies sales tax filing for eCommerce sellers.
Quaderno.io - Quaderno for Stripe is the simplest way to bill your customers without programming a single line of code.
Octobat - Octobat provides automated tax-compliance and accounting for digital businesses.
TaxAct - The most complete tax solution for everyone.
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.