# What does Simpson Millar use?

Simpson Millar (simpsonmillar.co.uk) shows public evidence of 22 tools, according to runsonwhat (last checked 2026-11-14).

- Industry: Law Practice
- Size: 201–1,000 employees
- Based in: Leeds, United Kingdom
- Founded: 1841
- LinkedIn: https://www.linkedin.com/company/simpson-millar

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | Custom domain, Website code |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [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 |  |
| [Google Tag Manager](https://www.runsonwhat.com/reverse/gtm) | Analytics | Website code |  |
| [VWO](https://www.runsonwhat.com/reverse/vwo) | Flags & Experiments | Website code |  |
| [Convert](https://www.runsonwhat.com/reverse/convert) | Flags & Experiments | Website code |  |
| [SpeedCurve](https://www.runsonwhat.com/reverse/speedcurve) | Monitoring | Website code |  |
| [Omniconvert](https://www.runsonwhat.com/reverse/omniconvert) | Flags & Experiments | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Meta Pixel](https://www.runsonwhat.com/reverse/meta-pixel) | Ads & Pixels | Website code |  |
| [LinkedIn Insight Tag](https://www.runsonwhat.com/reverse/linkedin-insight) | Ads & Pixels | Website code |  |
| [Microsoft Ads](https://www.runsonwhat.com/reverse/bing-ads) | Ads & Pixels | Website code |  |
| [Mailchimp](https://www.runsonwhat.com/reverse/mailchimp) | Marketing | Website code |  |
| [Trustpilot](https://www.runsonwhat.com/reverse/trustpilot) | Marketing | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records |  |
| [Cookiebot](https://www.runsonwhat.com/reverse/cookiebot) | Security & Compliance | Website code |  |
| [Mailchimp Transactional](https://www.runsonwhat.com/reverse/mandrill) | Email Delivery | Email records |  |
| [Mimecast](https://www.runsonwhat.com/reverse/mimecast) | Security & Compliance | Email records |  |
| [Mailjet](https://www.runsonwhat.com/reverse/mailjet) | Email Delivery | Email records, Website code |  |
| [DocuSign](https://www.runsonwhat.com/reverse/docusign) | Finance & Legal | DNS verification records, Website code |  |
| [Elastic Email](https://www.runsonwhat.com/reverse/elasticemail) | Email Delivery | Email records |  |

## FAQ

### What tools does Simpson Millar use?

As of November 2026, runsonwhat has found 22 tools at Simpson Millar (simpsonmillar.co.uk) in public records. Edge & Hosting: Cloudflare. Application: React. Data & Observability: Google Analytics, Google Tag Manager and VWO. Go-to-market: Google Ads, Meta Pixel and LinkedIn Insight Tag. Company Ops: Microsoft 365, Cookiebot and Mailchimp Transactional. Last checked November 14, 2026.

### What email provider does Simpson Millar use?

Simpson Millar uses Microsoft 365 for email and office software, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365. Microsoft 365 is used by 739,072 companies runsonwhat tracks.

### What analytics tools does Simpson Millar use?

Simpson Millar uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on simpsonmillar.co.uk. Google Analytics is used by 904,904 companies runsonwhat tracks.

### What marketing software does Simpson Millar use?

Simpson Millar uses Mailchimp for marketing, alongside Trustpilot, according to runsonwhat (November 2026). runsonwhat found Mailchimp through Mailchimp code on simpsonmillar.co.uk. Mailchimp is used by 119,472 companies runsonwhat tracks.

### What monitoring tools does Simpson Millar use?

Simpson Millar uses SpeedCurve for monitoring, according to runsonwhat (November 2026). runsonwhat found SpeedCurve through SpeedCurve code on simpsonmillar.co.uk. SpeedCurve is used by 478 companies runsonwhat tracks.

### Does Simpson Millar use Cloudflare?

Yes. runsonwhat found Cloudflare at Simpson Millar through a subdomain that points at Cloudflare and code on simpsonmillar.co.uk. Cloudflare is a CDN & Edge tool used by 737,326 companies runsonwhat tracks.

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

The companies with the stacks most like Simpson Millar's are Avon, The Royal Horseguards Hotel, Skinspirit and Strada Services, according to runsonwhat (November 2026). Each shares 7 to 11 tools with Simpson Millar, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Simpson Millar uses?

runsonwhat reads public records only. Of the 22 tools at Simpson Millar, 14 were found through code on simpsonmillar.co.uk, 4 through email records, 3 through DNS 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 simpsonmillar.co.uk about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/simpsonmillar.co.uk (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.