Largest telecommunications companies
The 80 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
$2.025 T
2.0% of all US-listed value
Companies
80
Ranked #8 of 12 sectors
Average
$25.311 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Cisco SystemsCSCO | $419.6B | $106.43 | -0.01% | United States |
| 2 | Arista NetworksANET | $256.6B | $203.47 | -0.84% | United States |
| 3 | ComcastCCZ | $229.5B | $64.67 | +0.00% | United States |
| 4 | Verizon CommunicationsVZ | $193.3B | $46.52 | +0.15% | United States |
| 5 | T-Mobile USTMUS | $177.7B | $165.66 | +2.00% | United States |
| 6 | AT&TT | $173.4B | $25.30 | +0.80% | United States |
| 7 | LumentumLITE | $84.0B | $937.00 | -0.92% | United States |
| 8 | Warner Bros. DiscoveryWBD | $77.2B | $30.76 | -0.23% | United States |
| 9 | America Movil Sab De CvAMX | $66.5B | $22.08 | -0.94% | Mexico |
| 10 | Vodafone Group PublicVOD | $37.8B | $16.35 | -1.63% | United Kingdom |
| 11 | Chunghwa TelecomCHT | $35.8B | $46.20 | +0.20% | Taiwan |
| 12 | F5FFIV | $25.8B | $455.99 | +0.59% | United States |
| 13 | RokuROKU | $22.8B | $153.49 | -0.49% | United States |
| 14 | BceBCE | $20.2B | $21.61 | -0.41% | Canada |
| 15 | Telefonica BrasilVIV | $18.6B | $11.65 | -2.43% | Brazil |
| 16 | Rogers CommunicationsRCI | $18.0B | $33.28 | +0.03% | Canada |
| 17 | Millicom International CellularTIGO | $15.4B | $91.90 | -2.63% | Luxembourg |
| 18 | Sk TelecomSKM | $13.8B | $35.85 | -1.38% | South Korea |
| 19 | TelusTU | $13.5B | $8.50 | -0.93% | Canada |
| 20 | Charter CommunicationsCHTR | $13.4B | $116.61 | -0.55% | United States |
| 21 | Perusahaan Perseroan Persero Pt Telekomunikasi Indonesia TbkTLK | $13.3B | $13.47 | -1.46% | Indonesia |
| 22 | KtKT | $9.38B | $19.45 | -0.26% | South Korea |
| 23 | TimTIMB | $8.77B | $18.34 | -3.17% | Brazil |
| 24 | Esco TechnologiesESE | $6.90B | $266.19 | +1.67% | United States |
| 25 | Lumen TechnologiesLUMN | $6.32B | $6.13 | -3.92% | United States |
| 26 | DPCDPC | $6.26B | $41.93 | +3.15% | United Kingdom |
| 27 | Telecom ArgentinaTEO | $6.02B | $13.98 | -1.41% | Argentina |
| 28 | VeonVEON | $4.85B | $70.36 | +1.43% | Netherlands |
| 29 | Turkcell Iletisim Hizmetleri A STKC | $4.54B | $5.16 | -0.58% | Turkey |
| 30 | Telephone & Data SystemsTDS | $4.19B | $36.43 | -0.71% | United States |
| 31 | PldtPHI | $3.77B | $17.46 | -1.47% | Philippines |
| 32 | Liberty GlobalLBTYA | $3.23B | $9.48 | -4.92% | United Kingdom |
| 33 | Array Digital InfrastructureAD | $3.02B | $34.94 | -1.24% | United States |
| 34 | Kyivstar GroupKYIV | $3.02B | $13.02 | -0.15% | United Arab Emirates |
| 35 | Extreme NetworksEXTR | $2.91B | $22.03 | -0.36% | United States |
| 36 | Digi InternationalDGII | $2.86B | $75.30 | +0.61% | United States |
| 37 | IHSIHS | $2.83B | $8.42 | -0.24% | Cayman Islands |
| 38 | AdeiaADEA | $2.76B | $25.05 | -3.02% | United States |
| 39 | Ziff DavisZD | $1.95B | $56.75 | -2.49% | United States |
| 40 | A10 NetworksATEN | $1.94B | $26.75 | +0.19% | United States |
| 41 | IdtIDT | $1.69B | $67.87 | -1.50% | United States |
| 42 | Liberty Latin AmericaLILA | $1.67B | $8.52 | -3.07% | United States |
| 43 | AnterixATEX | $1.65B | $83.98 | -1.48% | United States |
| 44 | Napco Security TechnologiesNSSC | $1.29B | $35.96 | +0.22% | United States |
| 45 | Liberty CapitalGLIBA | $935.4M | $23.44 | -3.70% | United States |
| 46 | Shenandoah TelecommunicationsSHEN | $645.2M | $12.09 | -1.79% | United States |
| 47 | Matthews InternationalMATW | $615.2M | $19.71 | -1.00% | United States |
| 48 | AMC Global MediaAMCX | $495.0M | $12.00 | -0.66% | United States |
| 49 | Optimum CommunicationsOPTU | $464.7M | $1.02 | -9.73% | United States |
| 50 | ATN InternationalATNI | $447.9M | $29.08 | -1.82% | United States |
| 51 | AllotALLT | $414.4M | $8.47 | +1.93% | Israel |
| 52 | PowerfleetAIOT | $389.3M | $2.90 | -2.69% | United States |
| 53 | LantronixLTRX | $298.9M | $6.40 | +2.40% | United States |
| 54 | SilicomSILC | $279.2M | $48.58 | -2.02% | Israel |
| 55 | TechTargetTTGT | $272.7M | $3.77 | -2.08% | United States |
| 56 | Turtle BeachTBCH | $228.7M | $12.77 | -0.23% | United States |
| 57 | SpokSPOK | $217.5M | $10.40 | -1.24% | United States |
| 58 | Sidus SpaceSIDU | $203.5M | $2.01 | -5.63% | United States |
| 59 | CrexendoCXDO | $192.9M | $5.80 | -0.17% | United States |
| 60 | HUHUTECH International GroupHUHU | $150.4M | $5.90 | -3.52% | China |
| 61 | BroadwindBWEN | $102.2M | $4.32 | -2.04% | United States |
| 62 | AmpliTech GroupAMPG | $101.5M | $3.38 | -0.73% | United States |
| 63 | Cable OneCABO | $89.8M | $15.83 | -7.21% | United States |
| 64 | InseegoINSG | $67.2M | $4.10 | -3.19% | United States |
| 65 | Rekor SystemsREKR | $59.0M | $0.43 | -6.88% | United States |
| 66 | Senstar TechnologiesSNT | $35.9M | $1.54 | +3.19% | Canada |
| 67 | Bos Better Online SolutionsBOSC | $33.3M | $4.73 | +0.00% | Israel |
| 68 | NextPlatNXPL | $24.7M | $9.10 | -2.78% | United States |
| 69 | KnightscopeKSCP | $23.1M | $0.98 | -10.68% | United States |
| 70 | UtstarcomUTSI | $22.2M | $2.34 | -3.31% | China |
| 71 | IntrusionINTZ | $18.6M | $0.76 | +1.20% | United States |
| 72 | Foxx DevelopmentFOXX | $17.4M | $2.47 | -6.08% | United States |
| 73 | iQSTELIQST | $11.2M | $1.03 | +3.05% | United States |
| 74 | Maris TechMTEK | $9.62M | $0.99 | -1.74% | Israel |
| 75 | Myseum.AIMYSE | $9.51M | $1.83 | -0.54% | United States |
| 76 | Core AICHAI | $7.89M | $0.30 | +5.32% | Canada |
| 77 | Hub Cyber SecurityHUBC | $4.29M | $3.21 | -24.29% | Israel |
| 78 | Wearable DevicesWLDS | $4.03M | $1.64 | +3.80% | Israel |
| 79 | Tianci InternationalCIIT | $2.53M | $2.62 | +3.77% | Hong Kong |
| 80 | QwestCTGG | $16.22 | $16.22 | -0.49% | United States |
All 80 companies. One row per company, with secondary share classes folded into their primary listing. Updated 24 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.