Automated data extraction and document analysis (IDP)
222 companies on usedby use at least one of the 11 tools in this category with a public customer. LlamaIndex leads with 48 companies. Then come Rossum (41) and Ocrolus (35). 2 companies run two of these tools or more. The most common pair is LlamaIndex with Celonis (1 company).Latest check Oct 8, 2026: 224 of 224 public lines checked. Counts are of companies on usedby, not of the whole market: we list a company when a public page shows its AI tools.
222
companies on usedby use a tool of this category
Companies per tool. A company using two tools counts for both.
Counts include job-post signals, drawn apart on each tool page.
Companies with a public line for each tool. Job-post signals count and are drawn apart in the proof bar.
| # | Tool | Customers | Proof |
|---|---|---|---|
| 1 |  LlamaIndex | 48 | |
| 2 |  Rossum | 41 | |
| 3 |  Ocrolus | 35 | |
| 4 |  Reducto | 24 | |
| 5 |  Hyperscience | 16 | |
| 5 |  Within (formerly Klarity) | 16 | |
| 7 |  Celonis | 14 | |
| 7 |  Upstage | 14 | |
| 9 |  Instabase | 8 | |
| 10 |  Unstructured | 7 | |
| 11 |  CheckFile.ai | 1 |
2 companies run two of these tools or more. The most common pair is LlamaIndex with Celonis, at 1 company.
LlamaIndex48 customersLlamaIndex is used by 48 companies on usedby, 23 confirmed by a case study, a named quote or a press release. Named customers include Nvidia, KPMG, and Intel. Who uses LlamaIndex, LlamaIndex vs Rossum
Customer page: llamaindex.ai. Latest check of 48 of 48 lines: Oct 7, 2026.
Rossum41 customersRossum is used by 41 companies on usedby, 33 confirmed by a case study, a named quote or a press release. Named customers include Bosch, Siemens, and Adyen. Who uses Rossum, LlamaIndex vs Rossum
Customer page: rossum.ai. Latest check of 41 of 41 lines: Oct 8, 2026.
Ocrolus35 customersOcrolus is used by 35 companies on usedby, 23 confirmed by a case study, a named quote or a press release. Named customers include PayPal, Square, and Brex. Who uses Ocrolus, LlamaIndex vs Ocrolus
Customer page: ocrolus.com. Latest check of 35 of 35 lines: Oct 7, 2026.
Reducto24 customersReducto is used by 24 companies on usedby, 11 confirmed by a case study, a named quote or a press release. Named customers include Scale AI, Vanta, and Toast. Who uses Reducto, LlamaIndex vs Reducto
Customer page: reducto.ai. Latest check of 24 of 24 lines: Oct 8, 2026.
Companies first listed by a tool of this category in the last 90 days.
Side-by-side pages with the companies behind each tool.
Answers drawn from usedby data.
LlamaIndex, used by 48 of the 222 companies on usedby in this category. Then come Rossum (41) and Ocrolus (35). Who uses LlamaIndex.
LlamaIndex: 48 companies on usedby, against 41 for Rossum.
Yes: 2 of the 222 companies on usedby in this category run two or more. The most common pair is LlamaIndex with Celonis (1 company).
By the number of companies with a public line for each tool, read from dated captures of vendor customer pages, case studies, press releases and job posts. Job-post signals count in the totals and are shown apart. usedby lists a company when a public page shows it, so these counts describe the companies on usedby, not the whole market.