# Research & Knowledge: the tools companies use 241 companies on usedby use at least one of the 14 tools in this category with a public customer. Coveo leads with 44 companies. Counts are of companies on usedby, not of the whole market. Latest check 2026-10-08: 232 of 251 public lines checked. > AI search and research assistants ## Ranking Public customers count every public line, job-post signals included; ties share a rank. | Rank | Tool | Public customers | Confirmed | Observed | Signals | |---|---|---|---|---|---| | 1 | [Coveo](https://www.usedby.ai/tools/coveo.md) | 44 | 40 | 4 | 0 | | 2 | [Listen](https://www.usedby.ai/tools/listen.md) | 40 | 13 | 27 | 0 | | 3 | [AlphaSense](https://www.usedby.ai/tools/alphasense.md) | 27 | 17 | 10 | 0 | | 4 | [Perplexity](https://www.usedby.ai/tools/perplexity.md) | 26 | 12 | 14 | 0 | | 5 | [MagicSchool](https://www.usedby.ai/tools/magicschool.md) | 23 | 7 | 16 | 0 | | 6 | [Algolia](https://www.usedby.ai/tools/algolia.md) | 21 | 21 | 0 | 0 | | 7 | [Hebbia](https://www.usedby.ai/tools/hebbia.md) | 14 | 7 | 7 | 0 | | 8 | [Cradle](https://www.usedby.ai/tools/cradle.md) | 12 | 5 | 7 | 0 | | 9 | [You.com](https://www.usedby.ai/tools/you-com.md) | 10 | 1 | 9 | 0 | | 10 | [Causaly](https://www.usedby.ai/tools/causaly.md) | 9 | 3 | 6 | 0 | | 10 | [Consensus](https://www.usedby.ai/tools/consensus.md) | 9 | 0 | 9 | 0 | | 12 | [Otio](https://www.usedby.ai/tools/otio.md) | 6 | 0 | 6 | 0 | | 13 | [Brisk Teaching](https://www.usedby.ai/tools/brisk-teaching.md) | 5 | 5 | 0 | 0 | | 13 | [Owkin](https://www.usedby.ai/tools/owkin.md) | 5 | 1 | 4 | 0 | Tools in this category without a public customer yet: [Insilico Medicine](https://www.usedby.ai/tools/insilico-medicine.md). ## Categories - [AI Search & Research](https://www.usedby.ai/tools/category/ai-search-research.md): 178 companies, 8 tools with a public customer - [Scientific Research](https://www.usedby.ai/tools/category/scientific-research.md): 35 companies, 4 tools with a public customer - [Education & Learning](https://www.usedby.ai/tools/category/education-learning.md): 28 companies, 2 tools with a public customer --- Source: https://www.usedby.ai/tools/category/research-knowledge ยท How we check: https://www.usedby.ai/methodology