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 122 vendors across 1,000 companies.

SMS / Messaging

Twilio 180 MessageBird 22 Vonage 20 Sinch 19 Telesign 7 Telnyx 6 Bandwidth 6 Plivo 5 Nexmo 5 Infobip 5 Esendex 3 Clickatell 3 Kaleyra 3 Commify 2 Syniverse 2 BulkSMS 1 Route Mobile 1

Email

SendGrid 105 Mailgun 68 Mailchimp 68 Postmark 33 Marketo 23 Resend 19 Braze 17 Customer.io 17 SparkPost 15 Klaviyo 12 Amazon SES 11 Iterable 2

Payments

Stripe 230 PayPal 112 Adyen 45 Braintree 25 Square 16 Chargebee 13 Zuora 12 Klarna 12 Worldpay 9 Mollie 8 Recurly 6 Paddle 4 Checkout.com 3 dLocal 2

Cloud Infrastructure

AWS 397 Google Cloud 160 Microsoft Azure 133 Cloudflare 130 Vercel 23 Heroku 23 DigitalOcean 23 Fastly 14 Akamai 14 OVH 12 Rackspace 12 Linode 7 Netlify 4

Analytics / Data

Google Analytics 251 Snowflake 74 Mixpanel 44 Tableau 42 Hotjar 38 Looker 36 Pendo 29 Segment 27 Amplitude 23 FullStory 23 BigQuery 15 Heap 2

CRM / Sales

HubSpot 148 Salesforce 142 Gong 23 Close 18 Outreach 9 Pipedrive 9

Support / CX

Zendesk 130 Intercom 113 Freshdesk 19 Front 14 Help Scout 13 Gorgias 1

Auth / Identity

Okta 50 Auth0 21 OneLogin 6 WorkOS 2 Clerk 1

Observability

Sentry 78 Datadog 74 New Relic 26 Grafana 10 PagerDuty 10 Splunk 10 Coralogix 5

Productivity

Slack 119 Google Workspace 98 Atlassian 96 Zoom 78 Microsoft 365 44 Dropbox 30 Box 22 Notion 20 Asana 11 Monday.com 9 Airtable 6 Miro 4

AI / ML

OpenAI 150 Anthropic 100 Hugging Face 5 Cohere 3

Privacy / Compliance

Vanta 41 OneTrust 30 Cookiebot 10 TrustArc 9 Drata 7 Secureframe 5 Osano 3

HR / Payroll

Deel 18 Workday 17 Greenhouse 10 Rippling 6 Gusto 4 BambooHR 3 Lever 2

Query this programmatically

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

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