
Apollo.io
Lusha
ZoomInfo
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DiscoverOrg
UpLead
Lead411
Clearbit provides Business Intelligence APIs

Supermemory
cognee
ChainMemory
Pieces for Developers
Memori
Claiv Memory
Notion
Your private, local memory layer for all AI tools

Which is more popular?
Based on our record, Clearbit should be more popular than Mem0. It has been mentioned 18 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | clearbit.com | mem0.ai |
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| Company | — | Startup from the United States |
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What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


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Overall verdict
Why this product is good
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Clearbit - Reev & OTB | Outbound Reviews #6
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How often each product is chosen within a category, 0–100% relative to the other.


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External articles and on-site reviews we used to compare the two products.


Clearbit is all about quality data. This solution is designed for smarter scoring, better routing, and more revenue. Clearbit automatically updates sales records with the accurate company and contact data.
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Recommendations tracked on public social media and blogs since March 2021.


Some display names need a lookup table, not fuzzy strings. Pairs like Investing.com / Fusion Media Limited or Lyrie.ai / OTT Cybersecurity Inc. Share almost no tokens, so WRatio stays low and that's correct behavior. For irreconcilable... - Source: dev.to / 6 months ago
Personal email domains destroy this. Clearbit's Enrichment API returns a null company when it hits gmail.com. Apollo routes personal domains straight to a consumer bucket and skips B2B fields entirely. Even PDL's /person/enrich endpoint... - Source: dev.to / 6 months ago
A few things worth flagging: PDL beats Clearbit's historical rates for US and Western European companies, but drops to ~52% match rate for Japan and South Korea specifically. Apollo underperforms on raw company matching but returns... - Source: dev.to / 6 months ago
Tool What it is for Link Mem0 Managed memory platform, plus the open-source library and server Https://mem0.ai Pgvector The Postgres extension for vector storage and similarity... - Source: dev.to / about 5 hours ago
The category goes by context engineering. Zep, founded in 2023 and out of Y Combinator's Winter 2024 batch, calls itself the context engineering platform for AI agents and sells a unified context layer: company data in, governed context... - Source: dev.to / 4 days ago
An AI agent that forgets everything between conversations is a tool you have To reintroduce yourself to every session. My AI assistant (the one that runs This very blog's workflow) used to start each chat from zero — until I gave it a... - Source: dev.to / 27 days ago
When comparing Clearbit and Mem0, you can also consider the following products.

Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
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ZoomInfo is a B2B database providing detailed business information on people and companies.
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Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
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