Clearbit Salesforce Prospector - Quickly build targeted lead lists directly in Salesforce
Grist - Grist makes it easy to transform spreadsheets into a custom database where data is truly actionable.
Mattermark in Salesforce AppExchange - Automatically enrich leads in Salesforce with Mattermark
Rows - The spreadsheet where teams work faster
7todos - A task board for indie hackers
UProc for Sheets - Boost your sales, marketing and IT tasks from Google Sheets