In Forrester's evaluation of the emerging market for natural language generation (NLG) for analytics, we identified the nine most significant providers in the category — Arria, Automated Insights, AX Semantics, IBM, Marlabs, Narrative Science, Salesforce, SAP, and Yseop — and evaluated them. This report details our findings about how well each vendor scored against 10 criteria and where they stand in relation to each other. Application development and delivery (AD&D) professionals working on analytics projects can use this review to select the right platform for their NLG requirements.