Largest telecommunications companies
The 79 US-listed companies in the telecommunications sector, ranked by market capitalisation. Sector comes from each company's Nasdaq classification; revenue and earnings come from its SEC filings.
Combined market cap
$1.837 T
1.9% of all US-listed value
Companies
79
Ranked #9 of 12 sectors
Average
$23.248 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Cisco SystemsCSCO | $433.9B | $110.06 | -1.85% | United States |
| 2 | Arista NetworksANET | $236.9B | $187.81 | -5.90% | United States |
| 3 | Verizon CommunicationsVZ | $213.1B | $51.29 | +1.34% | United States |
| 4 | T-Mobile USTMUS | $196.2B | $182.90 | +0.31% | United States |
| 5 | AT&TT | $181.7B | $26.51 | +1.73% | United States |
| 6 | LumentumLITE | $74.9B | $835.03 | -9.92% | United States |
| 7 | Warner Bros. DiscoveryWBD | $70.6B | $28.10 | +0.21% | United States |
| 8 | America Movil Sab De CvAMX | $69.6B | $23.12 | +1.27% | Mexico |
| 9 | Vodafone Group PublicVOD | $40.6B | $17.53 | +0.75% | United Kingdom |
| 10 | Chunghwa TelecomCHT | $35.1B | $45.25 | +0.89% | Taiwan |
| 11 | RokuROKU | $23.4B | $157.45 | +1.63% | United States |
| 12 | F5FFIV | $23.3B | $411.49 | -0.05% | United States |
| 13 | BceBCE | $21.9B | $23.47 | +0.34% | Canada |
| 14 | Rogers CommunicationsRCI | $19.8B | $36.65 | +1.22% | Canada |
| 15 | Telefonica BrasilVIV | $19.0B | $11.89 | +0.34% | Brazil |
| 16 | Charter CommunicationsCHTR | $16.4B | $143.35 | -1.66% | United States |
| 17 | Millicom International CellularTIGO | $16.0B | $95.43 | -1.29% | Luxembourg |
| 18 | Perusahaan Perseroan Persero Pt Telekomunikasi Indonesia TbkTLK | $15.1B | $15.26 | +2.14% | Indonesia |
| 19 | TelusTU | $14.6B | $9.16 | +0.66% | Canada |
| 20 | Sk TelecomSKM | $13.9B | $36.32 | -4.09% | South Korea |
| 21 | KtKT | $9.63B | $19.97 | +0.35% | South Korea |
| 22 | TimTIMB | $9.15B | $19.12 | +1.22% | Brazil |
| 23 | Lumen TechnologiesLUMN | $7.25B | $7.03 | +1.30% | United States |
| 24 | Esco TechnologiesESE | $6.82B | $263.19 | -2.63% | United States |
| 25 | DPCDPC | $5.97B | $39.96 | -5.53% | United Kingdom |
| 26 | Telecom ArgentinaTEO | $5.94B | $13.80 | +4.15% | Argentina |
| 27 | VeonVEON | $4.74B | $68.82 | +1.40% | Netherlands |
| 28 | Turkcell Iletisim Hizmetleri A STKC | $4.68B | $5.32 | -0.93% | Turkey |
| 29 | Telephone & Data SystemsTDS | $4.34B | $37.71 | +0.67% | United States |
| 30 | PldtPHI | $3.97B | $18.38 | -0.59% | Philippines |
| 31 | Liberty GlobalLBTYA | $3.62B | $10.60 | +1.24% | United Kingdom |
| 32 | Array Digital InfrastructureAD | $3.31B | $38.28 | +0.42% | United States |
| 33 | Kyivstar GroupKYIV | $3.17B | $13.66 | +0.37% | United Arab Emirates |
| 34 | IHSIHS | $2.83B | $8.44 | -0.35% | Cayman Islands |
| 35 | Extreme NetworksEXTR | $2.82B | $21.63 | -2.57% | United States |
| 36 | AdeiaADEA | $2.72B | $24.66 | -7.67% | United States |
| 37 | Digi InternationalDGII | $2.53B | $66.65 | -3.45% | United States |
| 38 | Ziff DavisZD | $1.97B | $57.35 | +2.01% | United States |
| 39 | A10 NetworksATEN | $1.86B | $25.61 | +3.52% | United States |
| 40 | IdtIDT | $1.77B | $71.02 | +0.72% | United States |
| 41 | Liberty Latin AmericaLILA | $1.74B | $8.87 | +0.68% | United States |
| 42 | AnterixATEX | $1.52B | $77.59 | -5.58% | United States |
| 43 | Napco Security TechnologiesNSSC | $1.28B | $35.86 | -1.10% | United States |
| 44 | Liberty CapitalGLIBA | $1.04B | $26.08 | +0.11% | United States |
| 45 | Shenandoah TelecommunicationsSHEN | $629.2M | $11.79 | -1.01% | United States |
| 46 | Matthews InternationalMATW | $621.5M | $19.91 | -0.45% | United States |
| 47 | AMC Global MediaAMCX | $506.1M | $12.27 | +0.82% | United States |
| 48 | ATN InternationalATNI | $466.1M | $30.26 | -0.20% | United States |
| 49 | Optimum CommunicationsOPTU | $450.2M | $0.99 | -3.13% | United States |
| 50 | AllotALLT | $410.0M | $8.38 | +11.44% | Israel |
| 51 | PowerfleetAIOT | $409.4M | $3.05 | +1.67% | United States |
| 52 | TechTargetTTGT | $279.9M | $3.87 | +0.00% | United States |
| 53 | Hub Cyber SecurityHUBC | $276.7M | $7.64 | -10.31% | Israel |
| 54 | LantronixLTRX | $235.9M | $5.05 | -3.63% | United States |
| 55 | SilicomSILC | $235.8M | $41.02 | -2.91% | Israel |
| 56 | SpokSPOK | $227.6M | $10.88 | +2.16% | United States |
| 57 | Turtle BeachTBCH | $221.4M | $12.36 | -3.51% | United States |
| 58 | Sidus SpaceSIDU | $196.4M | $1.94 | -3.00% | United States |
| 59 | CrexendoCXDO | $191.5M | $5.76 | +0.70% | United States |
| 60 | Cable OneCABO | $116.0M | $20.44 | -4.08% | United States |
| 61 | AmpliTech GroupAMPG | $101.5M | $3.38 | -2.31% | United States |
| 62 | HUHUTECH International GroupHUHU | $100.7M | $3.95 | -2.47% | China |
| 63 | BroadwindBWEN | $92.7M | $3.92 | -1.51% | United States |
| 64 | InseegoINSG | $71.4M | $4.35 | -2.69% | United States |
| 65 | Rekor SystemsREKR | $64.3M | $0.47 | +1.63% | United States |
| 66 | Senstar TechnologiesSNT | $38.7M | $1.66 | +0.61% | Canada |
| 67 | Bos Better Online SolutionsBOSC | $33.3M | $4.73 | +1.50% | Israel |
| 68 | KnightscopeKSCP | $31.6M | $1.34 | -1.11% | United States |
| 69 | NextPlatNXPL | $25.2M | $9.28 | +3.11% | United States |
| 70 | IntrusionINTZ | $21.8M | $0.89 | +5.30% | United States |
| 71 | UtstarcomUTSI | $21.6M | $2.27 | -2.15% | China |
| 72 | Foxx DevelopmentFOXX | $18.3M | $2.60 | +0.00% | United States |
| 73 | Myseum.AIMYSE | $15.9M | $3.06 | +14.61% | United States |
| 74 | iQSTELIQST | $11.4M | $1.04 | +9.99% | United States |
| 75 | Maris TechMTEK | $9.99M | $1.03 | +0.00% | Israel |
| 76 | Core AICHAI | $6.98M | $0.27 | -0.07% | Canada |
| 77 | Wearable DevicesWLDS | $3.84M | $1.56 | -6.02% | Israel |
| 78 | Tianci InternationalCIIT | $2.50M | $2.58 | -6.18% | Hong Kong |
| 79 | QwestCTGG | $16.00 | $16.00 | +0.63% | United States |
All 79 companies. One row per company, with secondary share classes folded into their primary listing. Updated 15 Sept 2026.
Industries in Telecommunications
Other sectors
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.