Symmetry - Symmetry offers software solutions for payroll witholding tax.
TaxJar - TaxJar simplifies sales tax filing for eCommerce sellers.
Octobat - Octobat provides automated tax-compliance and accounting for digital businesses.
Vertex Cloud - Vertex Cloud offers sales and use tax automation solutions.
Thomson Reuters ONESOURCE - ONESOURCE tax software and solutions synchronize every aspect of your work and link international, country, state and local tax laws.
MasterTax - MasterTax is an online payroll tax processing solution.