Twitter just launched its “Certified Products Program” to highlight “the best products and services to thrive on Twitter,” TechCrunch reports.

The program is meant to help companies find “the best tools to engage with their customers” and “understand what people are saying about them on Twitter.” To do so, Twitter is focusing on three product categories: engagement, analytics and data resellers. All of these, of course, are products that Twitter identified as tools it wants its developer ecosystem to focus on in its infamous blog post from earlier this month.

The partners include Attensity, Crimson Hexagon, Dataminr, DataSift, ExactTarget, Gnip,HootSuite, Mass Relevance, Radian6, SocialFlow, Sprinklr and Topsy.

In the announcement, the company’s business development manager Doug Williams notes that “this is just the beginning” and that Twitter is looking forward to adding more companies in the future.