# Leads -> Contacts & Accounts

When [leads](https://docs.glencoco.com/core-concepts/leads "mention") are [ingested](https://docs.glencoco.com/core-concepts/lead-ingestions) into a campaign through any method, whether via bulk [csv-uploads](https://docs.glencoco.com/core-concepts/lead-ingestions/csv-uploads "mention") one-off additions, or  [crm-integrations](https://docs.glencoco.com/core-concepts/lead-ingestions/crm-integrations "mention"), we automatically "split the lead" out into two different objects: [contacts](https://docs.glencoco.com/core-concepts/leads/contacts "mention"), and [accounts](https://docs.glencoco.com/core-concepts/leads/accounts "mention"). These [contacts](https://docs.glencoco.com/core-concepts/leads/contacts "mention") are then associated to [accounts](https://docs.glencoco.com/core-concepts/leads/accounts "mention") via [contacts-greater-than-account-grouping](https://docs.glencoco.com/core-concepts/leads/contacts-greater-than-account-grouping "mention") using many-to-one [object-relationships](https://docs.glencoco.com/core-concepts/advanced-concepts/object-relationships "mention").

The below UI image from the [csv-uploads](https://docs.glencoco.com/core-concepts/lead-ingestions/csv-uploads "mention") workflow hints at this (columns that are related to [contacts](https://docs.glencoco.com/core-concepts/leads/contacts "mention")start with 'Prospect', while columns related to [accounts](https://docs.glencoco.com/core-concepts/leads/accounts "mention")start with 'Account'):

<figure><img src="https://2457054009-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Ff5LkmcT8D3Tt8FlyON5s%2Fuploads%2FnhI6s8umq5bmTgeLQoKk%2FScreenshot%202025-10-27%20at%2009.26.02%20PM%402x.png?alt=media&#x26;token=8e9ab606-73f9-4e6f-b5b1-ef12212c9368" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Learn more about our methodology for [contacts-greater-than-account-grouping](https://docs.glencoco.com/core-concepts/leads/contacts-greater-than-account-grouping "mention").
{% endhint %}

All [](https://docs.glencoco.com/core-concepts/lead-ingestions "mention") are also run through our [deduplication](https://docs.glencoco.com/core-concepts/lead-ingestions/deduplication "mention") process.

{% hint style="info" %}
Learn more about our [deduplication](https://docs.glencoco.com/core-concepts/lead-ingestions/deduplication "mention") process.
{% endhint %}
