Largest telecommunications companies
The 81 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
$2.061 T
2.1% of all US-listed value
Companies
81
Ranked #8 of 12 sectors
Average
$25.448 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Cisco SystemsCSCO | $478.6B | $121.43 | +0.46% | United States |
| 2 | Arista NetworksANET | $238.0B | $188.67 | -1.90% | United States |
| 3 | ComcastCCZ | $227.1B | $64.00 | +0.00% | United States |
| 4 | Verizon CommunicationsVZ | $195.5B | $47.06 | +0.15% | United States |
| 5 | T-Mobile USTMUS | $190.1B | $177.19 | -1.54% | United States |
| 6 | AT&TT | $163.0B | $23.79 | +0.34% | United States |
| 7 | America Movil Sab De Cv/AMX | $71.5B | $23.75 | -0.71% | Mexico |
| 8 | LumentumLITE | $69.3B | $890.17 | +6.22% | United States |
| 9 | Warner Bros. DiscoveryWBD | $67.1B | $26.78 | +1.44% | United States |
| 10 | Vodafone Group PublicVOD | $38.5B | $16.19 | +1.19% | United Kingdom |
| 11 | Chunghwa TelecomCHT | $33.0B | $42.52 | +0.57% | Taiwan |
| 12 | RokuROKU | $22.6B | $153.11 | +2.03% | United States |
| 13 | F5FFIV | $22.6B | $400.23 | -3.11% | United States |
| 14 | BceBCE | $21.2B | $22.75 | -0.09% | Canada |
| 15 | Telefonica BrasilVIV | $19.2B | $12.01 | -0.58% | Brazil |
| 16 | Rogers CommunicationsRCI | $18.6B | $34.47 | -0.20% | Canada |
| 17 | Charter CommunicationsCHTR | $18.2B | $152.57 | -3.09% | United States |
| 18 | Millicom International CellularTIGO | $16.3B | $97.10 | -6.91% | Luxembourg |
| 19 | TelusTU | $15.4B | $9.72 | -0.92% | Canada |
| 20 | Perusahaan Perseroan Persero Pt Telekomunikasi Indonesia TbkTLK | $15.0B | $15.10 | +0.80% | Indonesia |
| 21 | Sk TelecomSKM | $13.1B | $34.26 | -3.95% | South Korea |
| 22 | KtKT | $8.92B | $18.50 | -0.16% | South Korea |
| 23 | TimTIMB | $8.82B | $18.43 | -0.49% | Brazil |
| 24 | Esco TechnologiesESE | $7.92B | $305.72 | -6.80% | United States |
| 25 | DPCDPC | $7.39B | $52.44 | -7.74% | Unknown |
| 26 | Lumen TechnologiesLUMN | $6.44B | $6.24 | +5.76% | United States |
| 27 | Telecom ArgentinaTEO | $5.96B | $13.83 | +0.22% | Argentina |
| 28 | Liberty BroadbandLBRDA | $5.16B | $35.93 | -3.13% | United States |
| 29 | Turkcell Iletisim Hizmetleri A STKC | $4.84B | $5.50 | +0.55% | Turkey |
| 30 | PldtPHI | $4.33B | $20.03 | +0.15% | Philippines |
| 31 | VeonVEON | $3.93B | $57.10 | +2.18% | Netherlands |
| 32 | Telephone & Data SystemsTDS | $3.75B | $32.98 | -8.39% | United States |
| 33 | Liberty GlobalLBTYA | $3.60B | $10.55 | -2.13% | United Kingdom |
| 34 | Extreme NetworksEXTR | $3.13B | $23.97 | -1.44% | United States |
| 35 | AdeiaADEA | $3.11B | $28.23 | -0.28% | United States |
| 36 | Digi InternationalDGII | $3.10B | $81.70 | -1.58% | United States |
| 37 | Kyivstar GroupKYIV | $3.09B | $13.38 | +0.07% | United Arab Emirates |
| 38 | Array Digital InfrastructureAD | $3.04B | $35.24 | -1.15% | United States |
| 39 | IHSIHS | $2.80B | $8.35 | +1.33% | Cayman Islands |
| 40 | Ziff DavisZD | $1.98B | $53.87 | +5.73% | United States |
| 41 | AnterixATEX | $1.94B | $99.26 | -1.06% | United States |
| 42 | A10 NetworksATEN | $1.93B | $26.84 | -2.75% | United States |
| 43 | Liberty Latin AmericaLILA | $1.67B | $8.51 | -2.18% | United States |
| 44 | IdtIDT | $1.62B | $65.08 | -1.65% | United States |
| 45 | Napco Security TechnologiesNSSC | $1.48B | $41.36 | +1.07% | United States |
| 46 | Liberty CapitalGLIBA | $981.7M | $24.60 | +0.74% | United States |
| 47 | Matthews InternationalMATW | $739.5M | $23.70 | -14.32% | United States |
| 48 | Shenandoah TelecommunicationsSHEN | $719.4M | $13.48 | +0.52% | United States |
| 49 | PowerfleetAIOT | $591.9M | $4.41 | +6.78% | United States |
| 50 | ATN InternationalATNI | $491.7M | $31.97 | +4.38% | United States |
| 51 | AMC Global MediaAMCX | $489.2M | $11.86 | -0.08% | United States |
| 52 | AllotALLT | $382.6M | $7.82 | +2.76% | Israel |
| 53 | Optimum CommunicationsOPTU | $366.4M | $0.77 | -4.42% | United States |
| 54 | TechTargetTTGT | $277.6M | $3.84 | -10.90% | United States |
| 55 | Turtle BeachTBCH | $276.9M | $13.95 | +11.15% | United States |
| 56 | SilicomSILC | $241.9M | $42.09 | +1.37% | Israel |
| 57 | SpokSPOK | $241.0M | $11.52 | +1.95% | United States |
| 58 | LantronixLTRX | $237.7M | $5.97 | +2.40% | United States |
| 59 | CrexendoCXDO | $221.8M | $6.67 | +2.77% | United States |
| 60 | Cable OneCABO | $211.7M | $37.32 | -16.10% | United States |
| 61 | Sidus SpaceSIDU | $181.1M | $2.24 | +7.18% | United States |
| 62 | AmpliTech GroupAMPG | $147.0M | $5.80 | +6.81% | United States |
| 63 | HUHUTECH International GroupHUHU | $133.8M | $5.25 | -5.41% | China |
| 64 | BroadwindBWEN | $109.1M | $4.66 | +4.25% | United States |
| 65 | Rekor SystemsREKR | $91.7M | $0.67 | +3.04% | United States |
| 66 | InseegoINSG | $89.7M | $5.51 | +3.86% | United States |
| 67 | Senstar TechnologiesSNT | $43.2M | $1.85 | -0.77% | Canada |
| 68 | KnightscopeKSCP | $31.6M | $1.57 | +2.61% | United States |
| 69 | Bos Better Online SolutionsBOSC | $31.2M | $4.42 | -2.43% | Israel |
| 70 | Hub Cyber SecurityHUBC | $29.7M | $0.89 | -8.60% | Israel |
| 71 | UtstarcomUTSI | $23.7M | $2.50 | -1.96% | China |
| 72 | Foxx DevelopmentFOXX | $18.3M | $2.60 | +4.00% | United States |
| 73 | NextPlatNXPL | $17.4M | $6.42 | -0.28% | United States |
| 74 | IntrusionINTZ | $17.3M | $0.76 | -0.16% | United States |
| 75 | Myseum.AIMYSE | $13.1M | $2.53 | +4.12% | United States |
| 76 | Maris TechMTEK | $11.4M | $1.18 | +1.29% | Israel |
| 77 | iQSTELIQST | $10.2M | $1.06 | -0.94% | United States |
| 78 | Wearable DevicesWLDS | $9.17M | $4.19 | -1.18% | Israel |
| 79 | Core AICHAI | $6.69M | $0.34 | -2.92% | Canada |
| 80 | Tianci InternationalCIIT | $3.51M | $3.63 | -3.46% | Hong Kong |
| 81 | QwestCTGG | $16.33 | $16.33 | +0.18% | United States |
All 81 companies. One row per company โ secondary share classes are folded into their primary listing. Updated 9 Aug 2026.
Industries in Telecommunications
Other sectors
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered โ see methodology.