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CCH Group - http://tax.cchgroup.com/
Offers general tax rates and forms by ZIP code, covering the United States, Territories, and Canada. |
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Avalara Sales Tax Software - http://www.avalara.com
State sales tax and use tax calculator for tax calculation, and address verification and validation for accounting software, such as Great Plains, ACCPAC, MAS 90 and MAS 200. |
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Independent Systems - http://www.taxrates.com/
Specializes in tax software and databases. Online internet sales tax rate query is available for direct or web based users. |
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SpeedTax, Inc. - http://www.speedtax.com
Offers SaaS sales tax calculation and integration with e-commerce and accounting systems. |
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Sabrix, Inc. - http://www.sabrix.com/
Provider of TaxBay, a global transaction tax calculation and management software package. |