High-Growth Sector
Telecommunications Connectivity
A market overview of active UK companies in Telecommunications Connectivity. Figures exclude dormant and dissolved companies. Data refreshed 30 Apr 2026.
Active companies
2,419
trading & on register
Reporting turnover
307
13% of active
Reporting employees
2,090
86% of active
Register health
10%
of 2,765 on register are dormant
Company size (employees)
Active companies reporting employee counts
Turnover distribution
Active companies reporting turnover
Where they're based
Active companies by major UK city (30km London, 15–20km elsewhere)
New formations by year
Active companies incorporated under this category (dormant shells excluded)
Largest by turnover
| # | Company | Turnover | EBITDA | Employees | 3y growth |
|---|---|---|---|---|---|
| 1 | VODAFONE GROUP PUBLIC LIMITED COMPANY | £42.0B | £17.2B | 92,834 | 3% |
| 2 | ASDA STORES LIMITED | £23.8B | £208.9M | 131,027 | 0% |
| 3 | BT GROUP PLC | £20.6B | £8.1B | 91,500 | -1% |
| 4 | BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY | £20.4B | £7.5B | 91,500 | -1% |
| 5 | VMED O2 UK HOLDINGS LIMITED | £10.7B | £3.8B | 15,932 | 20% |
| 6 | VMED O2 UK LIMITED | £10.7B | £3.8B | 15,932 | 20% |
| 7 | EE LIMITED | £7.1B | £2.3B | 16,939 | 1% |
| 8 | VODAFONE LIMITED | £5.9B | £940.4M | 9,199 | 2% |
| 9 | TELEFONICA UK LIMITED | £5.6B | £2.1B | 5,500 | 1% |
| 10 | HUTCHISON 3G UK LIMITED | £3.3B | £910.5M | 4,734 | 13% |
| 11 | VODAFONE GROUP SERVICES LIMITED | £2.6B | £859.6M | 2,690 | -1% |
| 12 | IHS HOLDING LIMITED | £1.7B | £531.3M | - | 18% |
| 13 | TALKTALK TELECOM GROUP LIMITED | £1.4B | £142.0M | 1,570 | - |
| 14 | TALKTALK HOLDINGS LIMITED | £1.4B | £18.0M | 1,570 | -1% |
| 15 | TALKTALK COMMUNICATIONS LIMITED | £1.1B | £234.0M | - | -4% |
| 16 | TESCO MOBILE LIMITED | £1.1B | £35.3M | 254 | 8% |
| 17 | HELIOS TOWERS PLC | £854.1M | £457.1M | 634 | 23% |
| 18 | TALKTALK TELECOM LIMITED | £713.1M | £77.6M | 499 | -6% |
| 19 | VODAFONE SHARED OPERATIONS LIMITED | £662.4M | £46.7M | - | - |
| 20 | TP-LINK UK LIMITED | £645.2M | £98.6M | 410 | 8% |
Fastest-growing
Active companies with turnover ≥ £1m, sorted by 3-year turnover CAGR
| # | Company | Turnover | Employees | 3y turnover growth |
|---|---|---|---|---|
| 1 | VODAFONE GLOBAL ENTERPRISE LIMITED | £180.4M | 114 | 807% |
| 2 | TOOB LIMITED | £14.0M | 315 | 170% |
| 3 | ZZOOMM GROUP LIMITED | £7.9M | 222 | 167% |
| 4 | ZZOOMM PLC | £7.9M | 221 | 167% |
| 5 | GRAIN CONNECT TOPCO LIMITED | £9.0M | 191 | 140% |
| 6 | HUTCHISON GLOBAL ENABLING SERVICES LIMITED | £84.1M | 5 | 122% |
| 7 | PIONEER BUSINESS SYSTEMS LIMITED | £57.6M | 195 | 71% |
| 8 | EXPEREO UK LIMITED | £25.4M | 56 | 68% |
| 9 | WIFINITY LIMITED | £33.1M | 210 | 61% |
| 10 | CLOUDCOCO GROUP PLC | £27.5M | 85 | 50% |
| 11 | SPECTRUM FIBRE LIMITED | £7.8M | 205 | 48% |
| 12 | G.NETWORK UK COMMUNICATIONS LIMITED | £10.2M | 480 | 47% |
| 13 | VONAGE BUSINESS LIMITED | £157.9M | 370 | 46% |
| 14 | LEBARA MOBILE LIMITED | £231.8M | 28 | 45% |
| 15 | TROOLI LTD | £9.3M | 220 | 44% |
| 16 | RADIOCOMS HOLDINGS LIMITED | £38.7M | 75 | 44% |
| 17 | FLAG TELECOM UK LIMITED | £5.0M | 14 | 44% |
| 18 | TALKMOBILE LIMITED | £57.4M | - | 43% |
| 19 | RADIOCOMS SYSTEMS LIMITED | £38.6M | 66 | 43% |
| 20 | NEXTGENACCESS LTD | £4.1M | 11 | 39% |
Newest formations
Most recently incorporated active companies
| # | Company | Location | Incorporated |
|---|---|---|---|
| 1 | GTT COMMUNICATIONS UK HOLDINGS LTD | Nottingham | 2025 |
| 2 | SPEEDCAST UK LIMITED | Edinburgh | 2025 |
| 3 | SPITFIRE ENERGY HOLD CO LIMITED | Corby | 2025 |
| 4 | SPEEDCAST UK HOLDCO LIMITED | London | 2025 |
| 5 | ELEVATE REFERRAL MARKETING LTD | Newbury | 2025 |
| 6 | HIGHLAND BROADBAND NETWORKS HOLDCO LIMITED | Edinburgh | 2025 |
| 7 | TALKWIRE HOLDINGS LIMITED | Melksham | 2025 |
| 8 | PARADIGM INFRASTRUCTURE MANAGEMENT SERVICES LIMITED | Northampton | 2024 |
| 9 | PURE CONNECT PEOPLE LIMITED | Glasgow | 2024 |
| 10 | SJD COMMERCIAL CONSULTANTS LIMITED | Basildon, Essex | 2024 |
| 11 | MUST COMMUNICATIONS LTD | Omagh | 2024 |
| 12 | 360 SOLUTIONS LTD | Colchester | 2024 |
| 13 | EVOLVE B G HOLDINGS LIMITED | Wigan | 2024 |
| 14 | VANTIVA SUPPLY CHAIN SOLUTIONS UK LIMITED | London | 2024 |
| 15 | SHAKA LIMITED | Bedford | 2024 |
| 16 | RIPPLE PHONE TECH LTD | Barnstaple | 2024 |
| 17 | TCAN SOLUTIONS LIMITED | St. Neots | 2024 |
| 18 | VISION DATA TELECOMS LTD | London | 2024 |
| 19 | S & S COMMUNICATIONS LTD | Newry | 2024 |
| 20 | S.JOLA LTD | Ballynahinch | 2024 |