# Built In Companies, Past the 500-Page Paginator (`gubidonius/builtin-companies`) Actor

The company directory from builtin.com by industry, size, office type, perks, tech stack and region, with employee count, offices, benefits count and whether they are hiring. The paginator stops at 500 pages and the directory does not. This one measures where it really ends.

- **URL**: https://apify.com/gubidonius/builtin-companies.md
- **Developed by:** [Gregory Bolshakov](https://apify.com/gubidonius) (community)
- **Categories:** Business, Lead generation, Jobs
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

Pay per event

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## Built In Companies, Past the 500-Page Paginator

The company directory on builtin.com, one row per company: name, industries, employee
count, offices and their cities, how many benefits it lists, whether it is hiring, and
its tagline and description. Filter by industry, company size, office type, perks, tech
stack, diversity options and region. No key and no login.

### What the directory hides

The directory serves 20 companies a page and its paginator never links past page 500, so
it admits to 10,000 companies and the heading says "10,000+". Page 501 answers 20 more.
So does page 2,000. On 11 September 2026 the directory ran to page 2,503, which is 50,060
companies, five times what the paginator shows.

This Actor reads the paginator only when it is under the cap, where the heading is an
exact count and the two agree. At the cap it finds the real end by bisection on the page
number, about 14 requests, and publishes it as `directoryTotal` on every row with
`paginatorLastPage` beside it so the two can be compared. Turn `measureDirectoryEnd` off
to skip the probes, and the row then carries `directoryAtLeast` instead.

### What a row is

One company, keyed by `companyId`, which is the number builtin-jobs takes to list one
employer's adverts. The `slug` is what builtin-company-details takes for the full
profile. The description on the card is cut short by the directory on long ones and
`descriptionIsTruncated` says when.

### Billing

Two events: a start fee charged only once a row is returned, and a per-row fee charged
after each row is written. A filter the directory does not have costs nothing.

# Actor input Schema

## `industries` (type: `array`):

From the directory's list of 103, by name or alias: Fintech, Healthtech, Aerospace, Software. Several at once are allowed and the directory answers companies in any of them.

## `companySizes` (type: `array`):

1-10, 11-50, 51-200, 201-500, 501-1000, 1000+ employees.

## `officeTypes` (type: `array`):

Hybrid, On-site, Fully Remote. Fully Remote is a location on the directory and the other two are office types, and both shapes are handled.

## `perks` (type: `array`):

Perks as the directory names them, from its list of 90, for example Offers 401(K), Provides fertility benefits, Offers a remote work program.

## `techStack` (type: `array`):

Technologies the company declares, from the directory's list of 213, for example Python, AWS, Snowflake.

## `diversity` (type: `array`):

The directory's DEI options, for example Has a dedicated diversity and inclusion staff.

## `location` (type: `string`):

One of the directory's 80 regions, by name or alias: Austin, Chicago, New York City, Colorado, San Francisco Bay Area. Empty means the whole United States directory.

## `hiringRemote` (type: `boolean`):

Only companies with open remote jobs.

## `hasOpenJobs` (type: `boolean`):

Only companies with any open job.

## `measureDirectoryEnd` (type: `boolean`):

When the paginator is at its 500-page cap, spend about 14 requests finding the real last page by bisection, so directoryTotal is a measured number. On 11 September 2026 the paginator said 500 pages and the directory ran to 2,503.

## `maxResults` (type: `integer`):

Most companies to return, and the most you will be charged for. The whole directory was 50,060 companies on 11 September 2026.

## Actor input object example

```json
{
  "industries": [
    "Fintech"
  ],
  "companySizes": [],
  "officeTypes": [],
  "perks": [],
  "techStack": [],
  "diversity": [],
  "location": "",
  "hiringRemote": false,
  "hasOpenJobs": false,
  "measureDirectoryEnd": true,
  "maxResults": 100
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "industries": [
        "Fintech"
    ],
    "companySizes": [],
    "officeTypes": [],
    "perks": [],
    "techStack": [],
    "diversity": [],
    "location": "",
    "hiringRemote": false,
    "hasOpenJobs": false,
    "measureDirectoryEnd": true,
    "maxResults": 100
};

// Run the Actor and wait for it to finish
const run = await client.actor("gubidonius/builtin-companies").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "industries": ["Fintech"],
    "companySizes": [],
    "officeTypes": [],
    "perks": [],
    "techStack": [],
    "diversity": [],
    "location": "",
    "hiringRemote": False,
    "hasOpenJobs": False,
    "measureDirectoryEnd": True,
    "maxResults": 100,
}

# Run the Actor and wait for it to finish
run = client.actor("gubidonius/builtin-companies").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "industries": [
    "Fintech"
  ],
  "companySizes": [],
  "officeTypes": [],
  "perks": [],
  "techStack": [],
  "diversity": [],
  "location": "",
  "hiringRemote": false,
  "hasOpenJobs": false,
  "measureDirectoryEnd": true,
  "maxResults": 100
}' |
apify call gubidonius/builtin-companies --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,gubidonius/builtin-companies"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/UGyiJa8ZMpWA8ati8/builds/Jz3qEMYU7YmyrcTof/openapi.json