Fuse combines prospecting, enrichment, buying signals, AI research, email, LinkedIn, and phone — with AI agents working across the workflow.
A broader prospecting database
Search a larger B2B contact database directly inside Fuse.
Fuse
850M+ contacts
Lemlist
650M+ leads
enrichment providers
Fuse enriches and verifies prospect data across 40+ providers.
buying signals
Identify who to contact and why now using website activity, hiring, growth, technology usage, and more.
Website activity
Hiring
Growth
Technology usage
and more
built into the workflow
Call multiple prospects simultaneously to create more conversations in less time.
Fuse
Lemlist
Fuse
Lemlist
850M+
650M+
40+ providers
Waterfall enrichment
50+ signals
13 native signals
lemAgent
built-in dialer
Not publicly documented
—
—
add-on
Email + LinkedIn + Phone
Email + LinkedIn + Calls + SMS + WhatsApp
Free trial
Lemlist
Lemlist brings prospect data, intent signals, AI agents, personalization, deliverability, and multichannel engagement into one outbound platform.
Workflow
Find prospects
Enrich + identify signals
Personalize with AI
Email + LinkedIn + Calls
Manage replies
Fuse
Fuse puts deeper prospect intelligence across the workflow.
Find prospects, enrich across 40+ providers, research accounts with AI, identify 50+ buying signals, then engage across email, LinkedIn, and phone.
Workflow
Find prospects
Enrich across 40+ providers
Research with AI
Identify 50+ signals
Email + LinkedIn + Phone
