Outbound campaigns live or die by data quality. With the Lusha API, you can bulk enrich entire lists—returning accurate, validated contact and company details at scale. The result: cleaner campaigns, fewer bounces, and more pipeline from every outreach effort.
When running outbound campaigns or ABM plays, you often need to process hundreds, or thousands of leads at once. But without clean, enriched data, bulk outreach turns into wasted effort: bounced emails, wrong titles, disconnected numbers. With the Lusha API, you can enrich large lists in bulk, returning validated contact and company data at scale—so every campaign starts from a strong foundation.
Why bulk list enrichment makes a difference
- Dirty campaign lists drain resources. Sales reps lose hours chasing dead ends.
- High-volume outreach requires accuracy. Bad data at scale multiplies wasted effort.
- RevOps needs repeatable processes. Enrichment should be automated, not handled with ad hoc scripts.
Bulk enrichment solves these problems by combining scale with reliability.
How the workflow works
Workflow:
List created — CSV upload, campaign export, or CRM report.
Bulk enrichment API call — up to 100 records per request.
Lusha API returns enriched data — direct dials, emails, company firmographics, role titles.
Confidence scores applied — prioritize high-accuracy contacts.
Cleaned list synced back into CRM or sales engagement tool for outreach.
Result: Campaign-ready lists that reps can trust.
The value for RevOps and Sales
- RevOps: standardized process for preparing campaign lists without manual scripts.
- Marketing: clean data for ABM and nurture campaigns.
- BDRs/SDRs: lists that don’t waste time with bad dials.
- AEs: higher conversion rates from sequences built on accurate data.
Example automation: n8n recipe
Trigger: CSV file uploaded to Google Drive
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Action: n8n workflow → split file into batches of 100
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Action: Lusha Bulk Enrichment API call for each batch
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Action: Combine enriched results + confidence scores into single dataset
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Action: Write enriched dataset back to HubSpot / Salesforce campaign
KPIs to track
- Coverage rate (%) — how many records enriched successfully
- Confidence score distribution — % of high-confidence contacts
- Bounce rate reduction — email deliverability improvements
- Rep time saved — hours not spent cleaning spreadsheets
Best practices for bulk enrichment
- Batch intelligently. Use the bulk endpoint (100 records) instead of custom scripts.
- Apply filters. Prioritize high-confidence data for outbound to improve ROI.
- Normalize output. Ensure job titles, phone formats, and company sizes match CRM schema.
- Track enrichment cost per record. Compare to pipeline impact to show ROI.
More resources:
FAQs
The bulk API supports up to 100 objects per request. For larger lists, batch them into chunks of 100 and process asynchronously.
Yes. Export a campaign list from Salesforce/HubSpot, send it through Lusha bulk API, and push the results back into the CRM.
Real-time enrichment processes one record at a time (e.g., from forms or new CRM entries). Bulk enrichment is designed for campaigns and list prep, processing hundreds or thousands of contacts in batch.
Yes. Each enriched record can return a confidence score, allowing you to prioritize high-quality data and reduce wasted outreach.
