Companies that test recommender and ranking systems
11 published entries state testing of recommender and ranking systems on their AI pages. They are headquartered in 4 countries and state 12 testing services between them.
Recommender and ranking systems: Models that order items for a user: feeds, search ranking, product recommendations.
Showing 11 of 11. Default order: coverage score, then name. How the score works.
| Rank | Company type | AI products (as stated) | Services | Verified | |||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | DeviQA | Pure-play QA company | Poland, Warsaw | LLM applicationsAI agentsRecommender and ranking systemsPredictive ML modelsComputer visionVoice AI | 8 | 2010 | 16 | 2026-11-09 | |
| 2 | ImpactQA | Pure-play QA company | United States | LLM applicationsAI agentsComputer visionVoice AIRecommender and ranking systems | 9 | 15 | 2026-11-09 | ||
| 4 | TestDevLab | Pure-play QA company | Latvia, Riga | LLM applicationsAI agentsVoice AIComputer visionPredictive ML modelsRecommender and ranking systemsAutonomous and embedded AI | 5 | 2011 | 14 | 2026-11-09 | |
| 4 | Testlio | Crowdtesting platform | United States, Austin | LLM applicationsAI agentsPredictive ML modelsRecommender and ranking systems | 8 | 2012 | 14 | 2026-11-09 | |
| 10 | ITRex Group | IT services firm with a QA practice | United States, Sacramento | LLM applicationsAI agentsComputer visionPredictive ML modelsRecommender and ranking systems | 6 | 2009 | 13 | 2026-11-09 | |
| 11 | QualityAI (formerly Qualitest) | Pure-play QA company | United States, Santa Clara | LLM applicationsAI agentsPredictive ML modelsRecommender and ranking systems | 7 | 12 | 2026-11-09 | ||
| 14 | Lionbridge | Data and evaluation vendor | United States, Waltham | LLM applicationsVoice AIComputer visionRecommender and ranking systems | 5 | 1996 | 11 | 2026-11-09 | |
| 14 | QA Madness | Pure-play QA company | Poland, Warsaw | LLM applicationsAI agentsRecommender and ranking systems | 7 | 11 | 2026-11-09 | ||
| 18 | Indium Software | IT services firm with a QA practice | United States, Cupertino | AI agentsLLM applicationsRecommender and ranking systems | 6 | 10 | 2026-11-09 | ||
| 29 | TestMatick | Pure-play QA company | United States, New York | Recommender and ranking systemsPredictive ML models | 4 | 2009 | 8 | 2026-11-09 | |
| 61 | Snoopgame | Pure-play QA company | Estonia, Tallinn | Computer visionRecommender and ranking systems | 2 | 4 | 2026-11-09 |
Which services listed vendors state for recommender and ranking systems
Count of entries on this page that also state each service. Built from the data at build time.
| Product type | LLM output evaluation | RAG pipeline validation | Prompt and model regression testing | Red teaming and adversarial testing | AI security penetration testing | Bias and fairness audit | Compliance and conformity assessment support | ML model validation | Training data and labeling QA | Performance and latency testing | Conversational flow testing | Production monitoring and drift testing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Recommender and ranking systems | 9 | 3 | 4 | 8 | 3 | 8 | 1 | 8 | 5 | 7 | 5 | 6 |