What is Three UK's NAICS code?

Three UK's NAICS code is 517 (Telecommunications).

Insights

5G Leadership Three UK has the most spectrum exclusively dedicated to 5G among UK mobile networks, presenting a strong upsell opportunity for enterprise customers seeking high-capacity, low-latency connectivity and advanced fixed wireless access solutions.

Sponsorship & Brand Active sponsorship of Chelsea FC teams and Channel 4’s Gogglebox, plus a charitable partnership with Samaritans, suggests opportunities to partner on large-scale marketing campaigns, sponsorship-driven data services, and co-branded customer engagements.

Network & Coverage Extensive 3G/4G/5G coverage to 99% of the outdoor UK population and ongoing network investments indicate potential for enterprise connectivity solutions, field force mobility, and IoT deployments requiring reliable nationwide service levels.

Partnership Potential Recent collaboration activity with Cellnex and ongoing vendor/partner ecosystem signals openness to co-develop network infrastructure, wholesale, and managed services opportunities that can be bundled with enterprise IT and cloud workloads.

Tech Stack & Cloud Adoption of multi-cloud and modern tech stack (Google Cloud, Microsoft Azure, VMware Tanzu, Genesys) points to opportunities for integrated cloud-native communications, contact center modernization, and unified communications as a service for business customers.

Similar companies to Three UK

Three UK Tech Stack

Three UK uses 8 technology products and services including Alteryx, Ansible, Hyperion, and more. Explore Three UK's tech stack below.

Alteryx
Advanced Analytics And Data Science
Ansible
Configuration Management
Hyperion
Corporate Performance Management
Adobe Experience Platform
Customer Data Platforms
Auth0
Identity Verification
Dialogflow
Live Chat
Bash
Operating Systems & Computing Languages
Queue-it
Performance

Media & News

Three UK's Email Address Formats

Three UK uses at least 1 format(s):

Three UK Email Formats	Example	Percentage
First.Last@three.co.uk	John.Doe@three.co.uk	96%
FLast@three.co.uk	JDoe@three.co.uk	2%
Last.First@three.co.uk	Doe.John@three.co.uk	1%
First@three.co.uk	John@three.co.uk	1%

Frequently Asked Questions

What is Three UK's phone number?

You can contact Three UK's main corporate office by phone at

+44-870-733-****

. For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Three UK's stock symbol?

Three UK is a publicly traded company; the company's stock symbol is MMM.

What is Three UK's official website and social media links?

Three UK's official website is three.co.uk and has social profiles on LinkedIn.

How much revenue does Three UK generate?

As of August 2026, Three UK's annual revenue is estimated to be $1B - $10B.

What is Three UK's SIC code NAICS code?

Three UK's SIC code is 4812 - Radiotelephone Communications NAICS code is 517 - Telecommunications.

How many employees does Three UK have currently?

As of August 2026, Three UK has approximately 5.1K employees across 6 continents, including EuropeAsiaNorth America. Key team members include Chief Executive Officer: F. Y.Ceo: C. N.Cio Vendor Manager: S. C.. Explore Three UK's employee directory with LeadIQ.

What industry does Three UK belong to?

Three UK operates in the Telecommunications industry.

What technology does Three UK use?

Three UK's tech stack includes AlteryxAnsibleHyperionAdobe Experience PlatformAuth0DialogflowBashQueue-it.

What is Three UK's email format?

Three UK's email format typically follows the pattern of First.Last@three.co.uk. Find more Three UK email formats with LeadIQ.

When was Three UK founded?

Three UK was founded in 2003.

Three UK

Q: What is Three UK's official website and social media links?

Three UK's official website is three.co.uk. Three UK has social profiles on LinkedIn.

Q: How many employees does Three UK have currently?

Three UK has approximately 5.1K employees.

Q: What technology does Three UK use?

Three UK's tech stack includes Lightweight Directory Access Protocol, Akamai Bot Manager, Meta, Cisco Routers, LeadIn.

TelecommunicationsEngland, United Kingdom5001-10000 Employees

Three UK operates a large mobile network in the United Kingdom, based in Reading, England, and was founded in 2003 with the aim of challenging the mobile industry. The network covers 99% of the UK outdoor population and handles a substantial share of mobile data traffic. The operator holds more 5G-exclusive spectrum than any other UK network, enabling enhanced experiences as 5G is deployed. 

Beyond connectivity, Three UK maintains sponsorships with Chelsea FC’s men’s and women’s teams and Channel 4’s Gogglebox. It is also a partner of Samaritans, supporting efforts to connect people with emotional support. In 2025, the company announced a partnership with Airtime Rewards to offer customers money off their monthly bill.