UProc for Sheets - Boost your sales, marketing and IT tasks from Google Sheets
Coverity Scan - Find and fix defects in your Java, C/C++ or C# open source project for free
Sheetlist - Discover free Google Sheets for marketing, finance and more
HCL AppScan - HCL Software Site
Mattermark in Salesforce AppExchange - Automatically enrich leads in Salesforce with Mattermark
SonarQube - SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.