QuickBooks - Business runs better with QuickBooks, the #1 accounting solution for small business.
Clearbit - Clearbit provides Business Intelligence APIs
Zoho Books - Smart Accounting for Growing Business
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Akaunting - Free, open source and online accounting software for small businesses and freelancers
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.