Prospecting & intelligence
Apollo, ZoomInfo, Cognism, Clay, Hunter — the layer that decides who to target.
Independent research · 20 companies · October 2026
Inside the sales stack.
Apollo, ZoomInfo, Clay, Clearbit, Outreach, Gong — the companies that decide who a sales team can reach and what they know before they call. We read what each one publishes about itself and write it up straight: the product, the pricing, the limits.
20products profiled
2layers covered
0claims without a source
The map
Two layers of the B2B sales stack
Apollo, ZoomInfo, Clay, Clearbit, Outreach, Gong — the companies that decide who a sales team can reach and what they know before they call. We read what each one publishes about itself and write it up straight: the product, the pricing, the limits.
Engagement & enrichment
Outreach, Salesloft, Gong, Clearbit, Lusha — the layer that runs the conversation.
Latest profiles
Airbyte
Airbyte is a ingestion product that connectors for hundreds of sources. This profile covers what it does, how it is priced, and where it stops being the right choice.
Apollo.io
Apollo.io is a prospecting product that combines a contact database with sequencing. This profile covers what it does, how it is priced, and where it stops being the right choice.
Clay
Clay is a data enrichment product that chains providers into one waterfall. This profile covers what it does, how it is priced, and where it stops being the right choice.
Clearbit
Clearbit enriches leads with company and person data. This profile covers what it does, how it is priced, and where it stops being the right choice.
ClickHouse
ClickHouse is a analytics product that columnar store built for aggregation. This profile covers what it does, how it is priced, and where it stops being the right choice.
Cognism
Cognism is a compliant data product that focuses on GDPR-safe mobile numbers. This profile covers what it does, how it is priced, and where it stops being the right choice.