Flag's tech stack
What does Flag use?
Flag (flag.co.uk) uses at least 30 tools we can see from public records, including Microsoft 365 for email and documents, HubSpot for sales, Zendesk for customer support and Google Analytics for analytics. Last checked .
- Industry
- Management Consulting
- Size
- 51–200 employees
- Based in
- London, United Kingdom
- Founded
- 1984
- Company page
- Tools found
- 30
- Categories
- 14
- Oldest proven tool
- Oct 2018
- Last checked
- Oct 2026
Flag'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
1 tool, where the bytes are served from
CDN & Edge
Application
7 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
10 tools, how they find and keep customers
Website & CMS
Sales & CRM
Support & Docs
Company Ops
10 tools, what the team runs on day to day
Email Delivery
Collaboration
Security & Compliance
What changed at Flag
Flag tech stack FAQ
What tools does Flag use?
As of October 2026, runsonwhat has found 30 tools at Flag (flag.co.uk) in public records. Edge & Hosting: Cloudflare. Application: Google Fonts, Vimeo and GSAP. Data & Observability: Google Analytics and web-vitals. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Apple Business and Cookiebot. Last checked October 19, 2026.
What CRM does Flag use?
Flag uses HubSpot for its CRM, alongside Zoho and ZoomInfo, according to runsonwhat (October 2026). runsonwhat found HubSpot through email records that authorize HubSpot and code on flag.co.uk. HubSpot is used by 93,065 companies runsonwhat tracks.
What email provider does Flag use?
Flag uses Microsoft 365 for email and office software, alongside Apple Business and Exclaimer, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on flag.co.uk. Microsoft 365 is used by 706,422 companies runsonwhat tracks.
What does Flag use for customer support?
Flag uses Zendesk for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Zendesk through a subdomain that points at Zendesk. Zendesk is used by 41,362 companies runsonwhat tracks.
What analytics tools does Flag use?
Flag uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on flag.co.uk. Google Analytics is used by 865,351 companies runsonwhat tracks.
What is Flag's website built with?
Flag uses HubSpot CMS for its website, according to runsonwhat (October 2026). runsonwhat found HubSpot CMS through a subdomain that points at HubSpot CMS and code on flag.co.uk. HubSpot CMS is used by 33,006 companies runsonwhat tracks.
How long has Flag used Zoho?
Flag has used Zoho since at least October 2018, going by the first public certificate of the flag.co.uk subdomain that points at Zoho.
Does Flag use Google Fonts?
Yes. runsonwhat found Google Fonts at Flag through Google Fonts code on flag.co.uk. Google Fonts is a Media & UI tool used by 799,670 companies runsonwhat tracks.
Does Flag use AI tools?
Yes. runsonwhat has found Anthropic and Perplexity at Flag; Anthropic, for example, through a DNS verification record for Anthropic. AI services called only from servers leave no public trace, so Flag may use more AI tools than these.
Which companies have a tech stack similar to Flag's?
The companies with the stacks most like Flag's are Leadership Services, ALTR, eos and Manawanui, according to runsonwhat (October 2026). Each shares 7 to 14 tools with Flag, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Flag uses?
runsonwhat reads public records only. Of the 30 tools at Flag, 12 were found through code on flag.co.uk, 8 through email records, 7 through DNS records and 3 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and flag.co.uk 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.