Harness Inc.'s tech stack
What does Harness Inc. use?
Harness Inc. (harness.io) uses at least 54 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, Qualified for sales and Zendesk for customer support. Last checked .
“AI-native software delivery platform automating CI/CD, infrastructure as code, testing, security and cloud cost management with AI agents.”
- Size
- 1,001–5,000 employees
- Based in
- San Francisco, United States
- Founded
- 2017
- Company page
- Tools found
- 54
- Categories
- 22
- Oldest proven tool
- Oct 2026
- Changes seen
- 1
Harness Inc.'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
10 tools, what the product is built with
Frontend
Auth & Identity
Backend & Database
Payments & Billing
Data & Observability
5 tools, what they measure and store
Monitoring
Flags & Experiments
Go-to-market
15 tools, how they find and keep customers
Website & CMS
Ads & Pixels
Sales & CRM
Support & Docs
Company Ops
20 tools, what the team runs on day to day
Email Delivery
Finance & Legal
Security & Compliance
What changed at Harness Inc.
Recent starts and stops
- StartedAmazon Web Services
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Harness Inc. tech stack FAQ
What tools does Harness use?
As of October 2026, runsonwhat has found 54 tools at Harness (harness.io) in public records. Edge & Hosting: Cloudflare, Amazon Web Services and Google Cloud. Application: jQuery, Google Fonts and GSAP. Data & Observability: Google Analytics, Google Tag Manager and Atlassian Statuspage. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 25, 2026.
What cloud does Harness run on?
Harness 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, and Harness has used it since at least October 2026. Amazon Web Services is used by 145,763 companies runsonwhat tracks.
What sales tools does Harness use?
The sales tools runsonwhat has found at Harness are Qualified (October 2026); no CRM shows up in Harness' public records. runsonwhat found Qualified through Qualified code on harness.io. Qualified is used by 1,755 companies runsonwhat tracks.
What email provider does Harness use?
Harness uses Microsoft 365 for email and office software, alongside Google Workspace and Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 712,519 companies runsonwhat tracks.
What does Harness use for customer support?
Harness uses Zendesk for customer support and documentation, alongside Discourse, according to runsonwhat (October 2026). runsonwhat found Zendesk through email records that authorize Zendesk and a subdomain. Zendesk is used by 42,010 companies runsonwhat tracks.
What payment provider does Harness use?
Harness uses Stripe for payments and billing, according to runsonwhat (October 2026). runsonwhat found Stripe through a DNS verification record for Stripe and code on harness.io. Stripe is used by 28,443 companies runsonwhat tracks.
How long has Harness used Amazon Web Services?
Harness has used Amazon Web Services since at least October 2026, going by the first public certificate of the harness.io subdomain that points at Amazon Web Services.
Does Harness use jQuery?
Yes. runsonwhat found jQuery at Harness through jQuery code on harness.io. jQuery is a Frontend tool used by 917,904 companies runsonwhat tracks.
Does Harness use AI tools?
Yes. runsonwhat has found Anthropic and MCP Registry at Harness; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Harness may use more AI tools than these.
Has Harness changed tools recently?
Yes. On runsonwhat's rechecks, Harness started using Amazon Web Services (latest on October 18, 2026). A change counts only between two checks of harness.io done the same way.
Which companies have a tech stack similar to Harness's?
The companies with the stacks most like Harness' are Temporal, Bonterra, Figma and Floqast, according to runsonwhat (October 2026). Each shares 27 to 33 tools with Harness, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Harness uses?
runsonwhat reads public records only. Of the 54 tools at Harness, 21 were found through DNS records, 18 through code on harness.io, 7 through subdomains that point at the vendor, 6 through email records and 2 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and harness.io 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.