# What does Leftfield use?

Leftfield (leftfieldpm.com) shows public evidence of 16 tools, according to runsonwhat (last checked 2026-10-29).

- Industry: Construction
- Size: 11–50 employees
- Based in: Boston, United States
- Founded: 2007
- LinkedIn: https://www.linkedin.com/company/leftfield-opm

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Cloud](https://www.runsonwhat.com/reverse/gcp) | Hosting & Cloud | Website code |  |
| [Microsoft Azure](https://www.runsonwhat.com/reverse/azure) | Hosting & Cloud | DNS records, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [GSAP](https://www.runsonwhat.com/reverse/gsap) | Media & UI | Website code |  |
| [React](https://www.runsonwhat.com/reverse/react) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |
| [Sentry](https://www.runsonwhat.com/reverse/sentry) | Monitoring | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Email records |  |
| [Wix](https://www.runsonwhat.com/reverse/wix) | Website & CMS | Custom domain, Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records |  |
| [Apple Business](https://www.runsonwhat.com/reverse/apple) | Workspace | DNS verification records |  |
| [Exclaimer](https://www.runsonwhat.com/reverse/exclaimer) | Workspace | Email records |  |
| [Mimecast](https://www.runsonwhat.com/reverse/mimecast) | Security & Compliance | Email records |  |
| [KnowBe4](https://www.runsonwhat.com/reverse/knowbe4) | Security & Compliance | DNS verification records |  |
| [Adobe](https://www.runsonwhat.com/reverse/adobe) | Collaboration | DNS verification records |  |
| [Zoom](https://www.runsonwhat.com/reverse/zoom) | Collaboration | DNS verification records |  |
| [Bluebeam](https://www.runsonwhat.com/reverse/bluebeam) | Collaboration | DNS verification records |  |

## FAQ

### What tools does Leftfield use?

As of November 2026, runsonwhat has found 16 tools at Leftfield (leftfieldpm.com) in public records. Edge & Hosting: Google Cloud and Microsoft Azure. Application: GSAP and React. Data & Observability: Google Analytics and Sentry. Go-to-market: Mailchimp and Wix. Company Ops: Microsoft 365, Apple Business and Exclaimer. Last checked October 29, 2026.

### What cloud does Leftfield run on?

Leftfield uses Google Cloud for hosting and cloud infrastructure, alongside Microsoft Azure, according to runsonwhat (November 2026). runsonwhat found Google Cloud through Google Cloud code on leftfieldpm.com. Google Cloud is used by 76,875 companies runsonwhat tracks.

### What email provider does Leftfield use?

Leftfield uses Microsoft 365 for email and office software, alongside Apple Business and Exclaimer, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 719,687 companies runsonwhat tracks.

### What analytics tools does Leftfield use?

Leftfield uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on leftfieldpm.com. Google Analytics is used by 906,254 companies runsonwhat tracks.

### What is Leftfield's website built with?

Leftfield uses Wix for its website, according to runsonwhat (November 2026). runsonwhat found Wix through a subdomain that points at Wix and code on leftfieldpm.com. Wix is used by 52,116 companies runsonwhat tracks.

### What marketing software does Leftfield use?

Leftfield uses Mailchimp for marketing, according to runsonwhat (November 2026). runsonwhat found Mailchimp through email records that authorize Mailchimp. Mailchimp is used by 117,782 companies runsonwhat tracks.

### Does Leftfield use GSAP?

Yes. runsonwhat found GSAP at Leftfield through GSAP code on leftfieldpm.com. GSAP is a Media & UI tool used by 211,162 companies runsonwhat tracks.

### Which companies have a tech stack similar to Leftfield's?

The companies with the stacks most like Leftfield's are Cochran, H4A, STRUCTURAL and K S Telecom, according to runsonwhat (November 2026). Each shares 3 to 7 tools with Leftfield, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Leftfield uses?

runsonwhat reads public records only. Of the 16 tools at Leftfield, 7 were found through DNS records, 5 through code on leftfieldpm.com, 3 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and leftfieldpm.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/leftfieldpm.com (updated November 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.