Interlockit.com is currently the only Custom Integration Xero Development Partner in North America!
Xero provides online accounting, bank reconciliation, and invoicing services and integrates with a wide range of powerful software solutions and add-ons.
We have extensive experience building live integrations between Xero and Google Spreadsheets, credit card payment gateways, FreshBooks, Solve360, and more.
Our listing on the Xero website: http://www.xero.com/add-ons/custom-integration/
For more details visit our website at: http://www.interlockit.com/Home/services/xero/xero-custom-integration