Browse 46,070 telecom companies in United Kingdom — registry-sourced from Companies House, scoped to NACE 61. Each record carries up to up to 500 firmographic attributes — from Companies House Number and registered address to revenue, headcount and corporate group structure. The largest by revenue are VODAFONE GROUP PUBLIC LIMITED COMPANY ($39.3B), BT GROUP PLC ($25.8B) and BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ($25.8B).
Top companies
The largest telecom companies in United Kingdom by revenue are VODAFONE GROUP PUBLIC LIMITED COMPANY ($39.3B), BT GROUP PLC ($25.8B) and BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ($25.8B). The directory below ranks them — sort any column, or filter by sub-sector, company size and region.
Last updated June 2026.
Every UK telecom companies record with all attributes, by API, bulk export or CRM enrichment.
Showing 25 of 46,070 UK telecom companies· click a column to sort, or a company for its full record
| Wired telecommunications activities | 92,834 | $39.3B | |
| Wired telecommunications activities | 91,500 | $25.8B | |
| Other telecommunications activities | 91,500 | $25.8B | |
| Wired telecommunications activities | 9,199 | $7.4B | |
| Other telecommunications activities | 77 | $6.9B | |
| Wireless telecommunications activities | 10,434 | $5B | |
| Wireless telecommunications activities | 12,169 | $4.4B | |
| Other telecommunications activities | 2,690 | $3.3B | |
| Wired telecommunications activities | 272 | $2.7B | |
| Wired telecommunications activities | 27,017 | $2.4B | |
| Other telecommunications activities | 2,300 | $2.3B | |
| Other telecommunications activities | 1,872 | $2.2B | |
| Other telecommunications activities | 331 | $2B | |
| Other telecommunications activities | 2 | $1.9B | |
| Wired telecommunications activities | 859 | $1.8B | |
| Other telecommunications activities | 1,570 | $1.8B | |
| Other telecommunications activities | 1,570 | $1.8B | |
| Other telecommunications activities | 12 | $1.5B | |
| Other telecommunications activities | 34 | $1.5B | |
| Other telecommunications activities | 6,510 | $1.4B | |
| Other telecommunications activities | 10,000 | $1.4B | |
| Wired telecommunications activities | 212 | $1.3B | |
| Other telecommunications activities | 3,478 | $1.3B | |
| Other telecommunications activities | 133 | $1.2B | |
| Other telecommunications activities | 11 | $925M |
This is a sample. The full database holds 46,070 UK telecom companies, each with every attribute in the dictionary below.
Database overview
Distributions across all 46,070 telecom companies in United Kingdom — registry-sourced from Companies House and refreshed daily.
These distributions are computed from the full UK telecom companies database, not the sample above.
Data coverage
United Kingdom business database
Legal name, registered address, NACE sub-sector, legal form, founding year and website. Every record is keyed to its Companies House Number — the stable Companies House identifier that survives name changes and rebrands, making it the most reliable CRM deduplication key for United Kingdom data.
Each company is geocoded to GPS coordinates covering its registered seat and operating locations across United Kingdom, with a precision level on every point — useful for territory planning and proximity targeting.
Records carry the Companies House Number and, where applicable, the VAT registration number, with a flag for when the two coincide. These are the cleanest match keys for enriching lists and cross-referencing against the national tax authority and your CRM.
InfobelPRO resolves the corporate hierarchy — parent, subsidiaries and the size of the worldwide corporate family — so sales and compliance teams can see who controls an entity before engaging or onboarding it.
Annual revenue in local currency, EUR and USD, employee headcount and founding year, with multi-year history where filed. Figures are sourced from Companies House filings and carry an Actual-or-Modeled reliability flag.
Data dictionary
The full field catalogue behind each record. Contact data (email, phone, executives) is part of the licensed dataset but is never displayed on this page.
Source comparison
Companies House gives you legal registration data. InfobelPRO adds the commercial intelligence sales, marketing and compliance teams actually need.
| Attribute | Companies HouseFree official registry | InfobelPRO |
|---|---|---|
| Companies House Number | Yes | Yes — on 99.9% of records |
| Legal name & registered address | Yes | Yes |
| Company status (HQ / branch) | Yes | Yes — daily sync |
| NACE sub-sector classification | Yes | Yes — up to 6 codes |
| Annual revenue (local / EUR / USD) | Filings only | Yes — multi-currency |
| Employee count | No | Yes |
| Decision-maker contacts | No | Yes — licensed |
| Geocoded coordinates | No | Yes |
| Corporate group structure | Filings only | Yes — full hierarchy |
| API access | No | Yes — REST API |
| Bulk export (CSV / JSON / Parquet) | No | Yes |
| Update frequency | Periodic (filings) | Daily sync |
FAQ
API access, bulk export or CRM enrichment — 46,070 records with up to up to 500 attributes each.
Explore more
Related directories
See all company directories in United Kingdom, explore the full United Kingdom business database In the US classification, related SIC codes include SIC 4813 — Telephone Communications, Except Radiotelephone, SIC 4812 — Radiotelephone Communications and SIC 4899 — Communications Services, Not Elsewhere Classified., or see how United Kingdom fits into the wider Europe business database.
