# Labelbox

URL: https://aidataforsale.com/companies/labelbox
Publisher: AI Data For Sale (Marketing Signals Ltd)
Updated: 2026-11-10

Labelbox offers data labeling software and an expert workforce called Alignerr for AI training data. What it does, where it fits, and the alternatives.

A data labeling software company that also supplies expert labelers through its Alignerr network.

## In short

- Labelbox sells software for labeling and reviewing AI training data.
- It also runs Alignerr, a network of vetted experts that AI teams can hire for data work.
- It suits teams that want to manage labeling in-house with their own guidelines.

## Profile

| Field | Detail |
| --- | --- |
| Type | Labeling software and expert workforce |
| Expert network | Alignerr, with Alignerr Connect for hiring vetted AI experts |
| Best for | Teams that want labeling tools plus on-demand experts |
| Buys data from companies? | No. It provides tools and labor. |

## What Labelbox does

Labelbox provides a platform for labeling, reviewing and managing training data, and supplies people through its Alignerr expert network. Alignerr Connect lets AI teams find and hire vetted experts directly ([Labelbox](https://labelbox.com/blog/announcing-labelbox-alignerr-connect-with-proven-ai-experts/)).

## Where it fits

If you already have data and need it labeled to your own rules, a labeling platform keeps the work and the guidelines under your control. If you need data you do not have, labeling software does not solve that. You need a source: a data holder, a marketplace or a broker. See our [data catalog](https://aidataforsale.com/data) for the types AI teams license.

## Things to check before you sign

- Whether data stays in your cloud or is copied to the vendor's.
- How expert credentials are verified.
- Ownership of labels, guidelines and any models trained on your annotations.
- Pricing model: per seat, per label or per hour.

## Alternatives and related companies

- [Scale AI](https://aidataforsale.com/companies/scale-ai)
- [Appen](https://aidataforsale.com/companies/appen)
- [Prolific](https://aidataforsale.com/companies/prolific)
- [Data annotation (glossary)](https://aidataforsale.com/glossary/data-annotation)
- [AI Data For Sale: how our brokerage works](https://aidataforsale.com/how-it-works)

## Questions

### What is Alignerr?

Alignerr is Labelbox's network of vetted experts who do AI data work. See [Labelbox's announcement](https://labelbox.com/blog/announcing-labelbox-alignerr-connect-with-proven-ai-experts/).

## Sources

- [Labelbox: Announcing Labelbox Alignerr Connect](https://labelbox.com/blog/announcing-labelbox-alignerr-connect-with-proven-ai-experts/)