Enrich and deduplicate Slack-uploaded companies in HubSpot with Coresignal
UnknownUnknown. This template uses community nodes we can't verify statically. Uses community nodes that can't be verified statically (unverified community packages are off by default in 3.0). Static check, last run 2026-10-19.
What this workflow does
This workflow has 27 nodes and runs on Slack events. Along the way it connects Slack, HubSpot and Coresignal Api (community).
How it runs
Trigger: On Slack events.
- Download Slack File (Slack): get (file)
- Notify Slack on File Download (Slack): uses Slack
- Fetch File Contents (HTTP Request): calls an HTTP API
- Extract Data from File (Extract from File): extracts data from a file
- Insert File Data into Table (Data table): uses Data table
- Search Company by Domain (HubSpot): search by domain (company)
- Check HubSpot Company ID (If): checks a condition and branches into true / false
- Summarize: summarizes / groups the items
- Combine Approval Results (Merge): merges the data from its input branches
- Retrieve Current Table Rows (Data table): get
…plus 16 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
We can't fully verify this one: it relies on 1 community package, and n8n 3.0 turns unverified community packages off by default (N8N_UNVERIFIED_PACKAGES_ENABLED=false).
- Check that n8n-nodes-coresignal-api is verified or supports 3.0 (used in Enrich Existing company, Enrich new company).
- Also check Slack Trigger requires a signing secret on the Slack API credential.
Nodes used (11)
- Slack Trigger
n8n-nodes-base.slackTrigger - Extract from File
n8n-nodes-base.extractFromFile - Slack
n8n-nodes-base.slack - HTTP Request
n8n-nodes-base.httpRequest - Data table
n8n-nodes-base.dataTable - HubSpot
n8n-nodes-base.hubspot - Summarize
n8n-nodes-base.summarize - Merge
n8n-nodes-base.merge - If
n8n-nodes-base.if - Code
n8n-nodes-base.code - Coresignal
n8n-nodes-coresignal-api.coresignal
From the author
This workflow automates the full company enrichment pipeline: Simply import CSV company lists to Slack and save time on enrichment and CRM maintenance. It processes uploaded files, extracts company domains, checks for existing records in HubSpot, and uses…