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Sales Tax Manager
A Windows-based, state tax software that creates signature-ready sales and use tax returns.
salestaxmanager.com/

International Sales Tax Refund Corp.
Worldwide VAT refund claim services for companies incurring travel expenses for accommodations, trade shows, conventions and conferences.
www.insatax.com/

Sales Tax Clearinghouse
Offering online state sales tax returns.
thestc.com/

JC Sales & Excise Tax Advisors
Creative end-to-end Excise Tax and Sales Tax solutions.
www.jcsalestax.com/

Sales Tax Advisors, Inc.
Consulting company designed to help businesses in every industry deal effectively with sales & use tax issues.
www.salestaxadvisors.com/

Associated Sales Tax Consultants
A professional tax consulting firm dedicated to providing innovative, in-depth solutions to sales and use tax problems.
www.astc.com/

Sales Tax Specialists, Inc.
Tax consulting firm offering sales and use tax audit representation, training, compliance services, and tax savings strategies.
www.salestaxspecialists.com/

Sales Tax Resource Group
California sales tax consulting firm specializing in audit representation, nexus and taxability studies, training, due diligence.
www.salestaxresource.com/

Sales Tax Specialists Inc
Offers representation, training, and compliance services.
www.psutc.com/

Avalara Sales Tax Software
State sales tax and use tax calculator for tax calculation, and address verification & validation for accounting software, such as Great Plains, ACCPAC, MAS 90 and MAS 200.
www.avalara.com/