The Stack Index / Compare tools / Clay vs ZoomInfo
GTM Vault · The Stack Index · operator evidence only
Clay vs ZoomInfo: what operators on the record run
On the GTM Vault record, Clay is run by 7 operators and ZoomInfo by 2. Clay sits on the enrichment and resolution layer and ZoomInfo on the source layer, so they do different jobs and can run in the same stack. 1 operator runs both. No operator on the record has replaced one with the other.
Updated 24 Sep 2026, the date of the latest episode or confirmation citing either tool. Cite as: GTM Vault, The Stack Index, “Clay vs ZoomInfo”, https://pro.gtmvault.co/stack/vs/clay-vs-zoominfo, updated 24 Sep 2026.
How to read this page. Every number is a count of operators who described running the tool on a GTM Vault episode or in a confirmed stack, one citation per episode, in their own words. Nothing is inferred from reviews, traffic or pricing, and nothing here is a recommendation. Placement in the index is not for sale.
Who runs each, and what it did
Clay
Enrichment and Resolution layer, serves Identity. Mid-market tier. 7 operators on record, excluding any who named it only as displaced by ZoomInfo.
- Vinayak Mishra, Slang AI
Master data layer, three tables
- Garrett Wolfe, 1GTM
Account scoring and enrichment waterfall
- Umar Farooq Adam, Hitachi Vantara
Account research and enrichment
- Tim Scheuer, Oxygen
Campaign build layer, later replaced by CLI orchestration
- Elliot O'Connor, Frontier
Data and workflows behind the extension's one-click actions
- Charles Cormier, TopLeads
Enrichment and list automation
- Michael Saruggia, Clay Operator
Core of the GTM engineer stack
ZoomInfo
Source layer, serves Identity. Enterprise tier. 2 operators on record, excluding any who named it only as displaced by Clay.
- Confirmed Sep 2026Mark van Oppen, SecureAuth
Account and contact data at SecureAuth, in heavy use
- Umar Farooq Adam, Hitachi Vantara
First source in the firmographic waterfall
Who runs both
The tools sit on different layers, so running both is the normal pattern: ZoomInfo supplies records and Clay resolves and routes them, or the reverse.
Displacements on record
No operator on the record has described replacing Clay with ZoomInfo or the reverse. The index records a displacement only when the operator said so on an episode.
What runs alongside each
Tools that appear in the same operators’ stacks. The count is how many of those operators run both.
With ZoomInfo
See which stacks these tools show up in next
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Common questions
- Clay or ZoomInfo: which do operators run?
- On the GTM Vault record, Clay is run by 7 operators and ZoomInfo by 2. Clay sits on the enrichment and resolution layer and ZoomInfo on the source layer, so they do different jobs and can run in the same stack. 1 operator runs both. No operator on the record has replaced one with the other. Every count is one citation per episode, in the operator's own words, from Show Me Your Stack, the GTM Vault Podcast or a confirmed stack.
- Do Clay and ZoomInfo do the same job?
- No. Clay is placed on the Enrichment and Resolution layer and ZoomInfo on the Source layer. Placement follows the job the tool did in an operator's system, not its marketing category, and the two jobs are different.
- Who runs both Clay and ZoomInfo?
- Umar Farooq Adam (Hitachi Vantara). Running both is the common pattern when the tools sit on different layers: one supplies records, the other resolves and routes them.
- Has anyone replaced ZoomInfo with Clay, or the reverse?
- No operator on the record has described replacing one with the other. The index records displacements only when the operator said so on an episode.
- What runs alongside each?
- With Clay: Apollo (3), Claude Code (2), Instantly (2) and Apify (2). With ZoomInfo: Apollo (1), Slack (1), Salesforce (1) and HubSpot (1). The number is how many operators run both tools.
- Is this a recommendation?
- No. The page is a count of what operators on the GTM Vault record described running, with their words and the episode. Placement in the index is not for sale and no count is edited. Updated 24 Sep 2026.
Other comparisons: Apollo vs ZoomInfo · Clay vs Apollo · HubSpot vs Salesforce · Claude Code vs Clay · Claude Code vs Cursor · Claude Code vs ChatGPT · Claude vs ChatGPT · Instantly vs Lemlist · Instantly vs Outreach · Apollo vs LinkedIn Sales Navigator · Compare two operators · All layers