Causal's tech stack
What does Causal use?
Causal (causal.app) uses at least 34 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, HubSpot for sales and Drift for customer support. Last checked .
- Industry
- Software
- Size
- 11–50 employees
- Based in
- London, United Kingdom
- Founded
- 2019
- Company page
- Tools found
- 34
- Categories
- 14
- Oldest proven tool
- Oct 2021
- Last checked
- Oct 2026
Causal's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
4 tools, where the bytes are served from
Hosting & Cloud
CDN & Edge
Application
2 tools, what the product is built with
Media & UI
Data & Observability
5 tools, what they measure and store
Go-to-market
15 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
8 tools, what the team runs on day to day
Dev Tools
What changed at Causal
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Companies like Causal also use
Tools common among companies with a similar stack that we haven't found at Causal.
Companies with a stack like Causal's
Ranked by shared tools, with rare tools counting more.
Speakeasy API, Inc.Software · 1–10 people8in common
iClosed ioInternet · 11–50 people16in common
VitalizeHealthcare · 11–50 people9in common
ReductoEngineering, Product and Design · 11–50 people11in common
WeaveEngineering, Product and Design · 11–50 people12in common
Knock11–50 people12in common
Momentic AIEngineering, Product and Design · 11–50 people15in common
Avraavra.ai7in common
More Software companies
Other Software companies we've checked.
Causal tech stack FAQ
What tools does Causal use?
As of October 2026, runsonwhat has found 34 tools at Causal (causal.app) in public records. Edge & Hosting: Amazon Web Services, Google Cloud and Fastly. Application: Vimeo. Data & Observability: Google Analytics, Google Tag Manager and Hotjar. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and Cookiebot. Last checked October 21, 2026.
What cloud does Causal run on?
Causal uses Amazon Web Services for hosting and cloud infrastructure, alongside Google Cloud and Vercel, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services. Amazon Web Services is used by 145,315 companies runsonwhat tracks.
What CRM does Causal use?
Causal uses HubSpot for its CRM, alongside Dealfront and 6sense, according to runsonwhat (October 2026). runsonwhat found HubSpot through a subdomain that points at HubSpot and code on causal.app, and Causal has used it since at least July 2022. HubSpot is used by 93,117 companies runsonwhat tracks.
What email provider does Causal use?
Causal uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and a DNS verification record. Microsoft 365 is used by 706,446 companies runsonwhat tracks.
What does Causal use for customer support?
Causal uses Drift for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Drift through Drift code on causal.app. Drift is used by 1,704 companies runsonwhat tracks.
What analytics tools does Causal use?
Causal uses Google Analytics for analytics, alongside Google Tag Manager, Hotjar and Dreamdata, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on causal.app. Google Analytics is used by 866,244 companies runsonwhat tracks.
How long has Causal used Squarespace?
Causal has used Squarespace since at least October 2021, going by the first public certificate of the causal.app subdomain that points at Squarespace. Other long-running tools at Causal include HubSpot (since July 2022), HubSpot CMS (since July 2022) and incident.io (since April 2023).
Does Causal use Google Ads?
Yes. runsonwhat found Google Ads at Causal through Google Ads code on causal.app. Google Ads is a Ads & Pixels tool used by 479,750 companies runsonwhat tracks.
Which companies have a tech stack similar to Causal's?
The companies with the stacks most like Causal's are Speakeasy API, iClosed io, Vitalize and Reducto, according to runsonwhat (October 2026). Each shares 8 to 16 tools with Causal, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Causal uses?
runsonwhat reads public records only. Of the 34 tools at Causal, 17 were found through code on causal.app, 7 through DNS records, 6 through subdomains that point at the vendor, 3 through email records and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and causal.app about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.