43
companies use LangSmith
43 companies use LangSmith. 12% are in HR & Recruiting. Confirmed or observed customers include Nvidia, Toyota, and Cisco. 11 of them are confirmed by a published case study, quote or press release.Latest check Oct 6, 2026: 37 of 43 companies checked, from 4 public sources.
- Category
- LLM Ops & Frameworks
- Customers by proof
- 11 confirmed, 31 observed, 1 signal
- Top industry
- HR & Recruiting, 12% of customers
- Pricing
- Developer: $0 seat per month; Plus: $39 seat per month; Enterprise: contact salesSource: langchain.com, checked Oct 4, 2026
- Most similar
- Arize AI, 1 shared customer
- Website
- langchain.com
What LangSmith does
LangSmith delivers comprehensive visibility into LLM agent behavior through tracing, monitoring, alerting, and usage insights. Framework agnostic with seamless LangChain integration.
Written by usedby from langchain.com.
Main features
Common uses
43 companies use LangSmith
Every company below links to the public page that shows it uses LangSmith. Open a row to see the dated capture.
Customers over time: appears once we have six months of archived captures.
| Company | Industry | First public proof | Proof |
|---|---|---|---|
 Nvidia | Artificial Intelligence | — | |
 Toyota | Automotive Manufacturing | — | |
 Cisco | Telecommunications | — | |
 Salesforce | Sales Tech & CRM | — | |
 Linkedin | HR & Recruiting | — | |
 Uber | Mobility & Ride-hailing | — | |
 Autodesk | DevTools & Infrastructure | — | |
 Bridgewater | Investment & VC | — | |
 Coinbase | Crypto & Web3 | — | |
 Expedia | Travel & Hospitality | — |
Is LangSmith right for your company?
See what companies in your industry use, from the companies we track. Pick your industry.
Of the 101 HR & Recruiting companies on usedby, 5 are listed as LangSmith customers. 4 use only another LLM Ops & Frameworks tool.
- LangSmith only, 1%
- LangSmith and another tool in LLM Ops & Frameworks, 4%
- Another tool in LLM Ops & Frameworks only, 4%
- No LLM Ops & Frameworks tool we can see, 91%
These are companies usedby tracks because a public page names them, often LangSmith's own customer page. It is not a market share. A company counts once, whatever the number of tools it uses.
What customers report
Results as published by LangSmith and its customers. Each one links to its dated source. We quote, we do not score.
Before you buy LangSmith
What LangSmith publishes on the points buyers check first, each with its source and check date.
| Free trial | Free trial or free plan available. | langchain.com, checked Oct 4, 2026 |
|---|---|---|
| Pricing | Developer: $0 seat per month; Plus: $39 seat per month; Enterprise: contact sales | langchain.com, checked Oct 4, 2026 |
Questions to ask in your demo
- Which of your customers look like us, by industry and size?
- What does a pilot cost, and what decides the move to a full contract?
- Where is our data stored, who can access it, and is it used to train models?
- How does LangSmith work with the tools we already use?
LangSmith alternatives
Tools compared with LangSmith most often, with the customers they share.
| Tool | Customers | Shared with LangSmith | Compare |
|---|---|---|---|
 Arize AI35 customers, 1 shared | 35 | 1 | LangSmith vs Arize AI |
 Braintrust39 customers, 0 shared | 39 | 0 | LangSmith vs Braintrust |
 TrueFoundry27 customers, 1 shared | 27 | 1 | LangSmith vs TrueFoundry |
 E2B23 customers, 1 shared | 23 | 1 | LangSmith vs E2B |
 Comet Opik17 customers, 2 shared | 17 | 2 | LangSmith vs Comet Opik |
Questions about LangSmith
Who uses LangSmith?
43 companies use LangSmith, including Nvidia, Toyota, and Cisco.
Which industries use LangSmith?
The industries with the most LangSmith customers are HR & Recruiting (5), Fintech & Payments (4), and Biotech & Pharma (2).
What are the alternatives to LangSmith?
The tools compared with LangSmith most often are Arize AI (35 customers, 1 shared), Braintrust (39 customers, 0 shared), TrueFoundry (27 customers, 1 shared), and E2B (23 customers, 1 shared). See all LangSmith alternatives.
How does usedby know who uses LangSmith?
Each company is linked to a public page that names it: LangSmith's customer page, a published case study, a press release or a job post. We save each page with a dated capture and check it again on each run. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
What do confirmed, observed and signal mean?
Confirmed (11): a case study, a named quote or a press release. Observed (31): LangSmith shows the company on its own pages, for example a logo wall. Signal (1): a job post shows the company’s employees use LangSmith, the weakest proof. Every level counts as a customer, and each line shows its level.
How current is this list?
The most recent check was on October 6, 2026, and 37 of 43 companies on this list have been checked so far. A company leaves the list only after three checks in a row that no longer find it, and at least 14 days after it was last seen. A company with a published case study or quote is never removed automatically.
Changes and sources
New customers
No new customer yet. Tracking of LangSmith started on October 3, 2026. New customers appear after two complete checks of its pages.