runsonwhat

Willowtree's tech stack

What does Willowtree use?

Willowtree (willowtreeapps.com) uses at least 27 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, Pendo for analytics and Mailchimp for marketing. Last checked .

Industry
Software
Size
1,001–5,000 employees
Based in
Charlottesville, United States
Founded
2007
LinkedIn
Company page
Re-check liveVisit willowtreeapps.com
Tools found
27
Categories
12
Layers
5 of 5
Last checked
Oct 2026

Willowtree'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

2 tools, where the bytes are served from

CDN & Edge

Application

1 tool, what the product is built with

AI

Data & Observability

2 tools, what they measure and store

Monitoring

Analytics

Go-to-market

4 tools, how they find and keep customers

Marketing

Sales & CRM

Company Ops

18 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Dev Tools

Finance & Legal

Security & Compliance

Companies like Willowtree also use

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

Companies with a stack like Willowtree's

Ranked by shared tools, with rare tools counting more.

More Software companies

Other Software companies we've checked.

Willowtree tech stack FAQ

What tools does Willowtree use?

We've found 27 tools at Willowtree (willowtreeapps.com). Edge & Hosting: Cloudflare and Amazon CloudFront. Application: Anthropic. Data & Observability: New Relic and Pendo. Go-to-market: HubSpot, Mailchimp and Pardot. Company Ops: Microsoft 365, Google Workspace and SendGrid. Last checked October 3, 2026.

What CRM does Willowtree use?

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

What email provider does Willowtree use?

Willowtree uses Microsoft 365, Google Workspace and Apple Business for email and documents. We found Microsoft 365 through DNS verification records.

What analytics tools does Willowtree use?

Willowtree uses Pendo for analytics. We found Pendo through DNS verification records.

What marketing software does Willowtree use?

Willowtree uses Mailchimp and Pardot for marketing. We found Mailchimp through email records.

Does Willowtree use Microsoft 365?

Yes. We found Microsoft 365 at Willowtree through DNS verification records. Microsoft 365 is used by 245,233 companies we track.

How does runsonwhat know what Willowtree uses?

We read public traces only: Willowtree'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.