runsonwhat

Upwork's tech stack

What does Upwork use?

Upwork (upwork.com) uses at least 42 tools we can see from public records, including Amazon Web Services for hosting, Microsoft 365 for email and documents, HubSpot for sales and Zendesk for customer support. Last checked .

Industry
Online Marketplace
Size
201–1,000 employees
Based in
United States
Founded
2015
LinkedIn
Company page
Re-check liveVisit upwork.com
Tools found
42
Categories
20
Oldest proven tool
Apr 2016
Last checked
Oct 2026

Upwork'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

3 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

8 tools, what the product is built with

Frontend

Backend & Database

AI

Payments & Billing

Media & UI

Data & Observability

3 tools, what they measure and store

Monitoring

Analytics

Flags & Experiments

Go-to-market

7 tools, how they find and keep customers

Marketing

Ads & Pixels

Sales & CRM

Support & Docs

Company Ops

21 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

Finance & Legal

Security & Compliance

What changed at Upwork

Using since

Dates come from the first certificate of the subdomain that points at the tool.

  1. Zendesk
  2. Marketo
  3. Notified
  4. Amazon CloudFront

Companies like Upwork also use

Tools common among companies with a similar stack that we haven't found at Upwork.

Companies with a stack like Upwork's

Ranked by shared tools, with rare tools counting more.

More Online Marketplace companies

Other Online Marketplace companies we've checked.

Upwork tech stack FAQ

What tools does Upwork use?

We've found 42 tools at Upwork (upwork.com). Edge & Hosting: Cloudflare, Amazon Web Services and Amazon CloudFront. Application: Google Fonts, Anthropic and OpenAI. Data & Observability: VWO, Dynatrace and Mixpanel. Go-to-market: Meta Pixel, Mailchimp and HubSpot. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 2, 2026.

What cloud does Upwork run on?

Upwork uses Amazon Web Services for hosting. We found Amazon Web Services through website code.

What CRM does Upwork use?

Upwork uses HubSpot for sales and CRM. We found HubSpot through email records.

What email provider does Upwork use?

Upwork uses Microsoft 365 and Google Workspace for email and documents. We found Microsoft 365 through DNS verification records.

What does Upwork use for customer support?

Upwork uses Zendesk for customer support. We found Zendesk through custom domain and email records since April 2016.

What payment provider does Upwork use?

Upwork uses Stripe for payments. We found Stripe through DNS verification records and website code.

Does Upwork use Microsoft 365?

Yes. We found Microsoft 365 at Upwork through DNS verification records. Microsoft 365 is used by 655,262 companies we track.

How does runsonwhat know what Upwork uses?

We read public traces only: Upwork's DNS and email records, certificate logs, the code its website loads, and published subprocessor lists. A tool is listed only when a direct record backs it up. DNS is rechecked weekly and the website 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.