LangSmith43 customers
Used by 43 companies on usedby. 2 also use Galileo. Compare Galileo and LangSmith
Source: langchain.com, latest capture Oct 3, 2026.
4 of the 13 Galileo customers on usedby also use another tool on this list. The tools most often used by the same companies are LangSmith (2 shared, 43 customers in all), Langchain (2 shared, 32 customers in all), and Mem0 (2 shared, 16 customers in all).Latest check Oct 7, 2026: 295 of 307 public lines checked. Customer counts include every proof level, job-post signals included. Shared customers are counted on confirmed or observed lines on both tools.
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Galileo customers also use another tool on this list
LangSmith shares the most companies with Galileo: 2 companies use both.
Tools of the same or a competing category, from another vendor, used by at least one company that also uses Galileo. A shared customer has a confirmed or observed line on both tools.
| # | Alternative | Shared with Galileo | Customers | Compare |
|---|---|---|---|---|
| 1 | LangSmith | 2 | 43 | Compare Galileo vs LangSmith |
| 2 | Langchain | 2 | 32 | Compare Galileo vs Langchain |
| 3 | Mem0 | 2 | 16 | |
| 4 | BraintrustMostly DevTools & Infrastructure (10) | 1 | 39 | Compare Galileo vs Braintrust |
| 5 | TrueFoundry | 1 | 27 |
LangSmith43 customersUsed by 43 companies on usedby. 2 also use Galileo. Compare Galileo and LangSmith
Source: langchain.com, latest capture Oct 3, 2026.
Langchain32 customersUsed by 32 companies on usedby. 2 also use Galileo. Compare Galileo and Langchain
Source: langchain.com, latest capture Oct 3, 2026.
Mem016 customersUsed by 16 companies on usedby. 2 also use Galileo.
Source: mem0.ai, latest capture Oct 7, 2026.
Braintrust39 customersUsed by 39 companies on usedby, 10 of them in DevTools & Infrastructure. 1 also uses Galileo. Compare Galileo and Braintrust
Source: braintrust.dev, latest capture Oct 6, 2026.
TrueFoundry27 customersUsed by 27 companies on usedby. 1 also uses Galileo.
Source: truefoundry.com, latest capture Oct 6, 2026.
Same category, with public customers, but no company named with Galileo yet.
Arize AI35 customers
E2B23 customers
Portkey22 customers
Comet Opik17 customers
CrewAI13 customers
Flowise13 customers
Fiddler AI10 customers
Contextual AI4 customersA company that left one vendor's page and appeared on another's.
Which of these tools the companies on usedby use, by industry. Each row counts the companies of that industry on usedby that use at least one of these tools.
| Industry | Most used | Next | Companies |
|---|---|---|---|
| Artificial Intelligence | E2B27% | Braintrust13% | 15 companies |
| DevTools & Infrastructure | Braintrust67% | Arize AI13% | 15 companies |
| Fintech & Payments | Braintrust29% | LangSmith29% | 14 companies |
| IT Services & System Integration | Arize AI20% | Mem020% | 10 companies |
| HR & Recruiting | LangSmith56% | Langchain44% | 9 companies |
Read the first row as: among the 15 Artificial Intelligence companies on usedby that use one of these tools, 27% use E2B. Shares can add up to more than 100% because some companies use two tools.
LangSmith: 2 companies use both on usedby. LangSmith has 43 customers in all. See who uses LangSmith.
4 of the 13 Galileo customers on usedby also use another tool on this list. LangSmith shares the most: 2.
Among the 15 Artificial Intelligence companies on usedby that use one of these tools, 27% use E2B. Braintrust comes next, with 13%.
Among the 15 DevTools & Infrastructure companies on usedby that use one of these tools, 67% use Braintrust. Arize AI comes next, with 13%.
Only tools of the same or a competing category, from another vendor, count. They are ranked by shared customers: companies with a confirmed or observed line on both tools, from public pages, most with a dated capture. Tools with no shared customer are listed apart. Customer counts include every proof level, job-post signals included.