# Build a lookalike target list from a marketing software seed

**Use case:** 

Start from one marketing software company's domain and get up to 25 similar companies by industry code, country and headcount range for an outbound campaign, with website, LinkedIn page and employee count for each.

## Input

```json
{
  "items": [
    "hubspot.com"
  ],
  "limit": 25
}
```

## Output

```json
{
  "seedDomain": {
    "label": "Seed domain",
    "format": "string"
  },
  "seedName": {
    "label": "Seed company",
    "format": "string"
  },
  "rank": {
    "label": "Rank",
    "format": "integer"
  },
  "name": {
    "label": "Lookalike company",
    "format": "string"
  },
  "domain": {
    "label": "Domain",
    "format": "string"
  },
  "website": {
    "label": "Website",
    "format": "string"
  },
  "linkedinUrl": {
    "label": "Profile",
    "format": "string"
  },
  "country": {
    "label": "Country",
    "format": "string"
  },
  "industry": {
    "label": "Industry",
    "format": "string"
  },
  "employeeCount": {
    "label": "Employees",
    "format": "integer"
  },
  "sizeRatio": {
    "label": "Size vs seed",
    "format": "number"
  },
  "founded": {
    "label": "Founded",
    "format": "integer"
  },
  "hq": {
    "label": "HQ",
    "format": "string"
  },
  "scrapedAt": {
    "label": "Found at",
    "format": "string"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The Lookalike Companies Finder - Similar Companies by Domain Actor is ready to run with the inputs already set for "Build a lookalike target list from a marketing software seed". [Sign up or log in](https://console.apify.com/create-task-from-example/HuxRkDahOA9xo73IQ) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Build a lookalike target list from a marketing software seed" task

The Lookalike Companies Finder - Similar Companies by Domain Actor will start running based on the input automatically. You can also change all the input fields, like which seed companies? (one domain per line) and lookalikes per seed domain, to match your specific use case.

### 3. Receive the "Build a lookalike target list from a marketing software seed" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as seed domain, seed company, rank, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Build a lookalike target list from a marketing software seed" task via API](https://apify.com/b2bdata/company-lookalikes.md).

## FAQ

### What does the lookalike target list task return?

The lookalike target list task returns up to the chosen limit of companies per seed, each with name, domain, website, LinkedIn page, country, industry, employee count, size ratio and founded year.

### What input does the marketing software lookalike task need?

This task needs one or more seed domains, such as hubspot.com, and a limit between 1 and 50 lookalikes per seed. The seed must have industry, country and headcount on file.

### How do I schedule the lookalike target list or send it to Google Sheets?

Run the lookalike target list task through the Apify API, put it on a schedule in Apify Console, or start it by hand. Export the dataset as CSV or JSON and open it in Google Sheets or Excel.

### Is this task a keyword search for marketing software companies?

The lookalike target list task is not a name or keyword search. It starts from a seed domain and applies industry code, country and headcount rules to find similar companies.

## About this Actor

This example demonstrates how to use [Lookalike Companies Finder - Similar Companies by Domain](https://apify.com/b2bdata/company-lookalikes.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/b2bdata/company-lookalikes.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/b2bdata/company-lookalikes.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).