> ## Documentation Index
> Fetch the complete documentation index at: https://docs.concretehq.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Bulk Import Companies

> Import multiple portfolio companies at once using a CSV file

## Overview

Save time by importing multiple companies into your fund at once using Concrete's bulk import feature. Upload a CSV file with your company list and Concrete will handle the rest, including duplicate detection and data validation.

<Tip>
  Advanced users may use Concrete's API to continuously sync portfolio companies from another system.
</Tip>

***

<Steps>
  <Step title="Prepare your CSV">
    * **Required columns**: Your CSV should include company names and domains where available.

    <Tip>
      Include historical domains in a separate column that maps to Concrete's **additional domains** field. This is common for companies that rebranded or changed domains. It helps Concrete identify all relevant history.
    </Tip>
  </Step>

  <Step title="Start the Import">
    From your fund page, click the import icon in the top right corner to begin the bulk import process.

    <img src="https://mintcdn.com/concrete/6aqKzaqK_Dye5-Qe/images/bulk-import-1.png?fit=max&auto=format&n=6aqKzaqK_Dye5-Qe&q=85&s=cc845b62aa0ad35f4f8292db104e6bbb" alt="Starting bulk import from fund page" width="1073" height="317" data-path="images/bulk-import-1.png" />

    Select your CSV file containing the list of companies and their websites. The file should include at minimum:

    * **Company names**
    * **Domain/website URLs**
  </Step>

  <Step title="Map Your Columns">
    Map the columns in your CSV file to Concrete's company fields. Name and domain are required fields that must be mapped for a successful import.

    <img src="https://mintcdn.com/concrete/6aqKzaqK_Dye5-Qe/images/bulk-import-2.png?fit=max&auto=format&n=6aqKzaqK_Dye5-Qe&q=85&s=ae0ed828dd6136dee3bcb2584a22124e" alt="Mapping CSV columns to Concrete fields" width="1074" height="1075" data-path="images/bulk-import-2.png" />

    **Required Fields:**

    * **Name**: Company name (maps to your "Company" or "Name" column)
    * **Domain**: Company website domain (maps to your "Website", "Domain", or "URL" column)
  </Step>

  <Step title="Preview and Import">
    Review your import list, which automatically accounts for duplicates and validates the data. Make any final adjustments before submitting.

    <img src="https://mintcdn.com/concrete/6aqKzaqK_Dye5-Qe/images/bulk-import-3.png?fit=max&auto=format&n=6aqKzaqK_Dye5-Qe&q=85&s=bf339f681999296429e398fba8fd00a9" alt="Previewing import list with duplicate detection" width="1072" height="583" data-path="images/bulk-import-3.png" />

    Click **Import** once you're satisfied with the preview.
  </Step>
</Steps>

***

## Troubleshooting

* If you're having trouble with the import, do not hesitate to [contact us](mailto:support@concretehq.com). We're happy to import the list on your behalf.

***

## After Import

Once your import is complete:

1. **Review imported companies** on your fund page
2. **Update company details** as needed
3. **Start tracking communications** - Concrete will begin processing relevant emails immediately

Your newly imported companies will start appearing in touchpoints and communications as Concrete processes your email history.