The Stack Index / Source / ZoomInfo
Source · serves Identity
ZoomInfo
ZoomInfo is used in the source layer by 2 operators documented on GTM Vault, including Mark van Oppen, SecureAuth, where it ran as the account and contact data at SecureAuth, in heavy use.
Who named it, and what it did
One entry per episode. Mentions in passing, sponsor reads and guest biographies are not counted.
Mark van OppenSecureAuthAccount and contact data at SecureAuth, in heavy use
Operator evidence · Confirmed Sep 2026
Umar Farooq AdamHitachi VantaraFirst source in the firmographic waterfall
Operator evidence · SMYS 5From Account List to Monitoring Universe: Building the Prioritization LayerThe episode →
Run the system yourself
Account monitoring universeFree Claude skill, built from Umar Farooq Adam’s system on SMYS 5 →For the ZoomInfo team
2 operators put ZoomInfo on the record.
Each operator above described ZoomInfo running inside a working revenue system, in their own words, one citation per episode. The record is yours to share.
Placement, order and counts are never for sale. How the index works.
Share the record
Free. It states the count and nothing else, and updates itself, so it can go down as well as up. The only condition is that it links back to this page.
Add a customer
Put a customer forward for Show Me Your StackA customer walks through the system they built with ZoomInfo. If it holds up, it goes on the record.
See which stacks this tool shows up in next
Every Show Me Your Stack episode adds operators and tools to this index. Subscribe to GTM Vault and get each one as it lands.
Runs alongside
Tools that appear in the same operators’ stacks as ZoomInfo. The count is how many of those operators run both.
Compared on the record
Who runs each, who runs both, and the displacements operators said out loud. Counts, not opinions.
Others in source
Common questions
- Which operators use ZoomInfo?
- 2 operators on GTM Vault have described running ZoomInfo in a working system: Mark van Oppen (SecureAuth) and Umar Farooq Adam (Hitachi Vantara). Each entry is one citation per episode, in the operator's own words. Mark van Oppen, SecureAuth described it as the account and contact data at SecureAuth, in heavy use (Confirmed Sep 2026).
- What layer of revenue architecture does ZoomInfo serve?
- ZoomInfo is placed on the Source layer, which serves Identity in the eight-layer model of revenue architecture. Where raw records enter: companies, people, firmographics, scraped listings. Placement follows the job the tool did in an operator's system, not the category its marketing claims.
- What runs alongside ZoomInfo?
- In the stacks of operators who run ZoomInfo, the tools that appear most often are Clay (1), Apollo (1), Slack (1), HubSpot (1) and Salesforce (1). The number is how many of those operators run both.
- What entry tier is ZoomInfo?
- ZoomInfo is listed at the enterprise tier. The index records budget as a posture (self-serve, mid-market, enterprise), not a price, because public pricing in this category is unreliable.