VendorStacks

Vendor index

Every vendor we have evidence for, and how many companies in the index list it. Each match carries the quoted source row it came from. Currently tracking 342 vendors across 1,000 companies.

Most-tracked vendors

SMS / Messaging

Email

Payments

Cloud Infrastructure

Analytics / Data

CRM / Sales

Support / CX

Auth / Identity

Observability

Productivity

AI / ML

Privacy / Compliance

HR / Payroll

E-commerce / POS

Database / Data Infra

Finance / Accounting

E-signature / Contracts

Integration / ETL

Search

Media / CDN

Realtime Infrastructure

Marketing / Ads

Security / Fraud

Data Enrichment

Query this programmatically

Everything on these pages is one API call away — including the full company lists these pages only sample.