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How To Enrich An Existing Leads List With ListKit Data

How to include or exclude companies & emails from your list

Bourhan Sbalbal avatar
Written by Bourhan Sbalbal
Updated over a week ago

Enhance Your Prospect Database with Targeted Lead Acquisition

ListKit's inclusion and exclusion filters enable you to strategically expand your lead list while avoiding duplicates. This guide demonstrates how to efficiently add new contacts to your database while maintaining list hygiene.

Method 1: Acquiring Emails from Target Companies

When you have a list of companies but need their contact information, ListKit's "Include Companies" filter provides an efficient solution:

  • Access the "Include Companies" filter from the company filters menu

  • Paste your company list directly into the designated area

  • Add relevant job title filters to target specific decision-makers within each company

Pro Tip: Include multiple job title variations to ensure comprehensive coverage. For example, combine "CEO," "Chief Executive Officer," and "Chief Executive" to capture all possible title formats.

Method 2: Preventing Duplicate Contacts

When working with leads from multiple sources, maintaining a unique database is crucial:

The Domain Exclusion Strategy

ListKit doesn't directly exclude email addresses, but offers an elegant workaround through domain exclusion:

  1. Extract company domains from your existing email list

  2. Paste these domains into the company exclusion filter

  3. Your search will automatically skip these companies, preventing duplicate contacts​

Best Practices for Lead List Enrichment

Before You Begin

  • Clean your existing data by removing invalid emails

  • Standardize company names in your source list

  • Prepare a clear list of job titles relevant to your business

During the Enrichment Process

  • Start with smaller batches to test your filters

  • Use multiple job title variations for comprehensive coverage

  • Monitor your credit usage to budget effectively

After Enrichment

  • Compare new leads with existing database using unique identifiers

  • Segment enriched contacts based on source or campaign purpose

  • Regularly update your exclusion list to maintain data quality

Strategic Applications

Use Case 1: Account-Based Marketing

Enrich target account lists with multiple decision-maker contacts

Use Case 2: Competitive Intelligence

Add contacts from competitor customer lists while excluding your own clients

Use Case 3: Event Targeting

Expand attendee lists with additional company representatives

Troubleshooting Common Issues

  • Empty results: Ensure company names match ListKit's database format

  • Unexpected contacts: Verify job title filters are correctly applied

  • Missing domains: Double-check domain formatting (use example.com not www.example.com)

Maximizing ROI

By strategically enriching your lead lists, you can:

  • Increase outreach volume without sacrificing quality

  • Maintain database hygiene and avoid spam complaints

  • Target specific roles within high-value accounts

  • Create comprehensive prospect coverage for key accounts

Start enriching your lead database today to unlock new opportunities while maintaining optimal list quality.

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