# Companies using Weights & Biases

3,019 companies use Weights & Biases, based on their job posts and their employees' public profiles. Hiring for it is steady, with 2,752 job posts naming it from October 2025 to August 2026. AI Engineer is the role that names it most often.

Data as of November 9, 2026. Source: Sumble.

## Which companies name Weights & Biases in the most job posts?

Among the companies with the most job posts naming Weights & Biases are Turnitin (59), Apple (57) and BIP (56). BIP is the newest of the five companies in the table, with its first job post naming it in September 2024.

| Company | Job posts | Recent job post |
|---|---:|---|
| [Turnitin](https://sumble.com/orgs/turnitin) | 59 | "Machine / Deep Learning development skills, including experiment tracking (we use AWS SageMaker, Hugging Face, transformers, PyTorch, scikit-learn, Jupyter, Weights & Biases)." (Senior Machine Learning Scientist (USA Remote), Jun 13, 2026) |
| [Apple](https://sumble.com/orgs/apple) | 57 | "Familiarity with LLM observability and evaluation tools (LangSmith, Weights & Biases, TruLens, etc.)" (latin america aiml data scientist (decision intelligence), Nov 1, 2026) |
| [BIP](https://sumble.com/orgs/bip) | 56 | "Conoscenza di framework di versionamento di dati e/o modelli (esempio: MLFlow, DVC, WanDB…)." (Junior AI Engineer, Oct 24, 2026) |
| [Kensho Technologies](https://sumble.com/orgs/kensho-technologies) | 51 | "Data Exploration and Visualization: Jupyter, Matplotlib, Pandas, Weights & Biases, Gradio, Streamlit" (machine learning intern - summer 2026, Dec 17, 2025) |
| [SentinelOne](https://sumble.com/orgs/sentinelone) | 41 | "MLOps and AIOps practices and tools such as MLFlow, Airflow, or Weights & Biases." (staff ai api engineer, Aug 9, 2025) |

## Is hiring for Weights & Biases growing?

Hiring for Weights & Biases barely changed, at 1.6 in every 10,000 job posts from June to August 2026 against 1.6 from March to May. Its busiest month was May 2026, at 1.8.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 188 | 1,413,673 | 1.3 |
| Nov 2025 | 244 | 1,822,119 | 1.3 |
| Dec 2025 | 139 | 1,236,103 | 1.1 |
| Jan 2026 | 215 | 1,828,002 | 1.2 |
| Feb 2026 | 238 | 1,856,647 | 1.3 |
| Mar 2026 | 269 | 1,850,711 | 1.5 |
| Apr 2026 | 243 | 1,728,886 | 1.4 |
| May 2026 | 326 | 1,821,509 | 1.8 |
| Jun 2026 | 331 | 1,909,496 | 1.7 |
| Jul 2026 | 304 | 1,815,180 | 1.7 |
| Aug 2026 | 255 | 1,835,698 | 1.4 |

## How many companies named Weights & Biases in a job post for the first time in recent months?

Job posts named Weights & Biases for the first time at 280 companies from June to August 2026, against 335 from March to May. Over the 11 months from October 2025, 978 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 335 |
| June to August 2026 | 280 |
| October 2025 to August 2026 | 978 |

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

## How do we know which companies use Weights & Biases?

2,153 companies name Weights & Biases in job posts they wrote, and employees' profiles add 866 more. 160 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name Weights & Biases | 2,153 | 71% |
| Employees' profiles list Weights & Biases | 866 | 29% |

## What size are the companies that use Weights & Biases?

Weights & Biases skews toward smaller firms. 27% of its users are companies with fewer than 50 employees, against 22% on the typical tech page. 554 of its companies have more than 5,000 employees.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 27% | 22% |
| 50 to 999 | 40% | 38% |
| 1,000 to 5,000 | 15% | 17% |
| Over 5,000 | 18% | 23% |

## Where are Weights & Biases companies based?

Weights & Biases companies are spread across 76 countries and territories. The United States leads with 48%, then India with 8.4%. The United Kingdom is third, at 5.8%.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 1,354 | 48% | 43% |
| India | 239 | 8.4% | 6.9% |
| United Kingdom | 166 | 5.8% | 6.4% |
| Germany | 147 | 5.2% | 4.4% |
| France | 102 | 3.6% | 4.6% |
| Canada | 91 | 3.2% | 3.6% |

## Which teams work with Weights & Biases?

At 49 companies, the team named in Weights & Biases job posts is AI, at least twice the next. Data science and engineering teams come next, at 22 companies each.

| Team | Companies |
|---|---:|
| AI | 49 |
| Data science | 22 |
| Engineering | 22 |
| AI engineering | 17 |
| ML | 17 |
| Machine learning | 16 |

## Which roles mention Weights & Biases most?

Weights & Biases shows up across many roles. The top one, AI Engineer, has 38% of the job posts. AI Engineer posts naming it numbered 314 from March to May 2026 and 329 from June to August.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| AI Engineer | 38% | 1,035 | 314 | 329 |
| Machine Learning | 17% | 471 | 116 | 132 |
| Data Scientist | 7.8% | 216 | 69 | 63 |
| MLOps Engineer | 5% | 137 | 39 | 34 |
| Software Engineer | 4.5% | 123 | 29 | 39 |
| Software Development Engineer in Test | 1.7% | 46 | 10 | 14 |

## Which companies started naming Weights & Biases in job posts recently?

Between April and August 2026, 345 companies with 50 or more employees first named Weights & Biases in a job post, 80 of them with more than 5,000 employees. Another 26 were AI-native companies, which we list separately.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| AI native | [Giotto.ai](https://sumble.com/orgs/l2f-business-topological-modeling) | 5 |
| AI native | [Domyn](https://sumble.com/orgs/igenius) | 4 |
| AI native | [Iambic](https://sumble.com/orgs/iambic-ai) | 4 |
| AI native | [Lila Sciences](https://sumble.com/orgs/lila-sciences) | 3 |
| AI native | [Triomics](https://sumble.com/orgs/triomics) | 3 |
| Commercial | [株式会社ジｰニー](https://sumble.com/orgs/geniee) | 7 |
| Commercial | [Prolific](https://sumble.com/orgs/prolific) | 5 |
| Commercial | [CirrusLabs](https://sumble.com/orgs/cirruslabs-e9199776) | 5 |
| Commercial | [Recursion](https://sumble.com/orgs/recursion-pharmaceuticals) | 4 |
| Commercial | [osapiens](https://sumble.com/orgs/osapiens) | 4 |
| Mid-market | [Tekion Corp](https://sumble.com/orgs/tekion) | 8 |
| Mid-market | [Quantiphi](https://sumble.com/orgs/quantiphi) | 6 |
| Mid-market | [N-iX](https://sumble.com/orgs/n-ix) | 6 |
| Mid-market | [Panasonic Automotive North America](https://sumble.com/orgs/panasonic-automotive) | 5 |
| Mid-market | [Salute](https://sumble.com/orgs/salute-mission) | 5 |
| Enterprise | [Booz Allen Hamilton](https://sumble.com/orgs/booz-allen-hamilton) | 7 |
| Enterprise | [JLL](https://sumble.com/orgs/jll) | 5 |
| Enterprise | [Paramount](https://sumble.com/orgs/paramount-66ac57f4) | 5 |
| Enterprise | [Cognizant](https://sumble.com/orgs/cognizant-technology-solutions) | 4 |
| Enterprise | [Wipro](https://sumble.com/orgs/wipro) | 4 |

Companies that named Weights & Biases in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

## What else do Weights & Biases companies use?

The tool most tied to Weights & Biases is Arize. 6.2% of Weights & Biases companies use it, 61 times the usual rate for their size. Next is TorchServe: 7% of these companies use it, against 0.13% of similar ones.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| Arize | 97 | 6.2% | 0.1% | 61 times |
| TorchServe | 111 | 7% | 0.13% | 56 times |
| DVC | 295 | 19% | 0.35% | 53 times |
| DeepSpeed | 131 | 8.3% | 0.17% | 49 times |
| KServe | 81 | 5.1% | 0.11% | 48 times |
| Ray | 292 | 19% | 0.45% | 41 times |
| LangSmith | 268 | 17% | 0.44% | 39 times |
| TensorRT | 273 | 17% | 0.48% | 36 times |

Shares are out of the 1,577 companies whose job posts name Weights & Biases, not counting firms whose job posts name almost every technology.

## Which project themes come up in Weights & Biases job posts?

The most common project theme in Weights & Biases job posts is Generative AI, with 1,715 posts. Broad digital transformation work shows up in 578 of its job posts; after that comes Cloud Cost Optimization, with 335.

| Project theme | Job posts |
|---|---:|
| Generative AI | 1,715 |
| Digital Transformation | 578 |
| Cloud Cost Optimization | 335 |
| Data Infrastructure Migration | 57 |

## About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.