Who makes transmission for AI data centers
High-voltage transmission equipment, interconnection hardware, grid-enhancing technology, and the EPC firms and developers that build and expand the grid feeding a data center site.
This category covers everything that moves bulk power from a generation source to a data center's point of interconnection: HVDC converter equipment and cable, STATCOMs and synchronous condensers that stabilize voltage, grid-enhancing technology that squeezes more capacity out of existing lines, advanced conductors, transmission structures, the EPC firms that build new lines, and the developers who originate transmission projects. It sits between the generation and utility layers above (Layers 8.01–8.08) and the facility-side electrical equipment in Layer 7, and grid operators are listed here for context on the markets this equipment serves, not as vendors. AI load growth has turned transmission capacity and interconnection queues into one of the most visible bottlenecks in bringing new data center capacity online, pulling forward demand for grid-enhancing technology and advanced conductors as faster-to-deploy alternatives to building entirely new transmission lines. An investor should watch order backlogs at the concentrated set of HVDC and large power-equipment makers, and separate the EPC and developer names (which benefit from transmission buildout regardless of who ultimately owns the line) from equipment makers exposed to specific technology cycles like grid-enhancing tech adoption.
AI delta: AI data centers have made transmission capacity and interconnection queues a visible bottleneck, pulling forward demand for grid-enhancing technology and advanced conductors as faster alternatives to new transmission lines.
Companies on this part (9)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| AESO | service | state | disclosed | grid operator (context, not a vendor) · source | |||
| CAISO | service | state | inferred | grid operator (context, not a vendor) | |||
| ERCOT | service | cooperative | inferred | grid operator (context, not a vendor) | |||
| IESO | service | state | inferred | grid operator (context, not a vendor) | |||
| ISO-NE | service | cooperative | disclosed | grid operator (context, not a vendor) · source | |||
| MISO | service | cooperative | disclosed | grid operator (context, not a vendor) · source | |||
| NYISO | service | cooperative | disclosed | grid operator (context, not a vendor) · source | |||
| PJM | service | cooperative | disclosed | grid operator (context, not a vendor) · source | |||
| SPP | service | cooperative | disclosed | grid operator (context, not a vendor) · source |
HVDC 8.09a
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Furukawa | manufacturer | public | 5801.T | 2895 JPY | -2.3% | inferred | |
| GE Vernova | manufacturer | public | GEV | 815 USD | -1.0% | inferred | |
| Hitachi Energy · unit of Hitachi | manufacturer | subsidiary | 6501.T* | disclosed | · source | ||
| LS Cable · unit of LS Corp | manufacturer | subsidiary | 006260.KS* | inferred | |||
| Mitsubishi Electric | manufacturer | public | 6503.T | 4770 JPY | -2.3% | inferred | |
| Nexans | manufacturer | public | NEX.PA | 114 EUR | -0.7% | disclosed | · source |
| NKT | manufacturer | public | NKT.CO | 806 DKK | +0.6% | disclosed | · source |
| Prysmian | manufacturer | public | PRY.MI | 99.08 EUR | -0.8% | inferred | |
| Siemens Energy | manufacturer | public | ENR.DE | 119 EUR | -2.0% | inferred | |
| Sumitomo Electric | manufacturer | public | 5802.T | 1833 JPY | -2.1% | inferred |
STATCOM and synchronous condensers 8.09b
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| ABB | manufacturer | public | ABBN.SW | 67.78 CHF | -1.2% | inferred | |
| AMSC | manufacturer | public | AMSC | 25.12 USD | +0.5% | disclosed | · source |
| GE Vernova | manufacturer | public | GEV | 815 USD | -1.0% | inferred | |
| Hitachi Energy · unit of Hitachi | manufacturer | subsidiary | 6501.T* | inferred | |||
| Siemens Energy | manufacturer | public | ENR.DE | 119 EUR | -2.0% | inferred | |
| WEG | manufacturer | public | WEGE3.SA | 42.73 BRL | -3.2% | inferred | |
| Ingeteam | manufacturer | private | inferred |
Grid-enhancing tech 8.09c
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Heimdall | manufacturer | private | disclosed | · source | |||
| LineVision | manufacturer | private | disclosed | · source | |||
| Smart Wires | manufacturer | private | inferred |
Advanced conductors 8.09d
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Nexans | manufacturer | public | NEX.PA | 114 EUR | -0.7% | inferred | |
| Prysmian | manufacturer | public | PRY.MI | 99.08 EUR | -0.8% | inferred | |
| CTC Global | manufacturer | private | inferred | ||||
| Southwire | manufacturer | private | inferred | ||||
| TS Conductor | manufacturer | private | disclosed | · source |
Poles and structures 8.09e
Transmission EPC 8.09f
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Dycom | contractor | public | DY | 225 USD | +0.6% | inferred | |
| MasTec | contractor | public | MTZ | 171 USD | -1.1% | inferred | |
| MYR | contractor | public | MYRG | 254 USD | -0.2% | inferred | |
| Primoris | contractor | public | PRIM | 65.03 USD | -2.9% | inferred | |
| Quanta Services | contractor | public | PWR | 546 USD | -0.6% | inferred | |
| Black & Veatch | contractor | private | inferred | ||||
| Burns & McDonnell | contractor | private | inferred | ||||
| Kiewit | contractor | private | inferred | ||||
| Power · unit of WSP | contractor | private | WSP.TO* | inferred | Engineers | ||
| Sargent & Lundy | contractor | private | inferred |
Developers 8.09g
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| AEP | developer | public | AEP | 130 USD | -1.1% | inferred | Transmission |
| NextEra | developer | public | NEE | 82.10 USD | +0.2% | inferred | Transmission |
| Anbaric | developer | private | inferred | ||||
| Grid United | developer | private | inferred | ||||
| Invenergy | developer | private | inferred | Transmission | |||
| Pattern | developer | private | inferred |
Who competes here
The same table read the other way: every company above competes for transmission, interconnection & grid equipment sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Nearby parts
- Children: HVDC, STATCOM and synchronous condensers, Grid-enhancing tech, Advanced conductors, Poles and structures, Transmission EPC, Developers
- Previous in layer: Renewables & long-duration storage hardware
- Next in layer: Gas supply chain
- Layer: Layer 8 — Power generation & energy supply
From the blog
Latest feed
- LS Power COO sees sweeping power sector investing needs: gas, renewables, transmission and more — Utility Dive, 2026-10-20LS Power's COO stated that current demand growth is substantial and that the supply side of the power infrastructure, including gas, renewables, and transmission, requires significant time to meet market needs.
- Norwegian undersea cable builder pitches 2,800-mile transatlantic data link between Canada and Europe to bypass the US — Tom's Hardware, 2026-10-19Norway's Bulk Infrastructure Group AS aims to develop a 2,800-mile transatlantic undersea cable connecting Canada and Europe to bypass infrastructure in the United States.
- PowerHouse & Big Watt secure approval for 1GW behind-the-meter campus in Taylor, Texas — Data Center Dynamics, 2026-10-15PowerHouse and Big Watt have received local approval for a 1GW natural gas-powered data center campus in Taylor, Texas.
- US AI data center power shortages drive demand for hybrid solar, natural gas and geothermal systems — DigiTimes, 2026-10-15The rapid expansion of AI data centers in the US is causing grid strain and construction delays due to high electricity demands, prompting a shift toward hybrid power sources including solar, natural gas, and geothermal energy.
- Semiconductors to consume 30% of Taiwan's power by 2035 — DigiTimes, 2026-10-15Taiwan's semiconductor industry, including wafer fabrication, memory, and advanced packaging, is projected to consume 30% of the nation's total electricity by 2035 to meet rising demand for high-end servers.
- LEO satellite boom strains supply chain amid AI data-center demand — DigiTimes, 2026-10-15The simultaneous expansion of LEO satellite constellations and AI data centers is creating supply chain strain and competition for power-related equipment and grid capacity.
- Fossil generation pipeline rebounds while new clean generation slows: EDF — Utility Dive, 2026-10-14EDF reports that rising costs and supply shortages are causing delays and increased expenses in the construction of new gas-fired power plants for the energy grid.
- Fossil fuel generation pipeline rebounds while new clean generation slows: EDF — Utility Dive, 2026-10-14EDF reported a rebound in the fossil fuel generation pipeline while new clean energy generation capacity is slowing.
- FERC approves Duke large load transmission rules despite cost-shift concerns — Utility Dive, 2026-10-13The FERC approved Duke Energy's proposal for large load transmission rules, which aims to address grid capacity and infrastructure for significant power demands.
- FERC approves PJM's request to create data center database — Data Center Dynamics, 2026-10-13The Federal Energy Regulatory Commission (FERC) approved a request by PJM Interconnect to establish a database for data center power requirements while rejecting a proposal to specifically curtail data center power during grid stress.
Questions about transmission, interconnection & grid equipment
- What is transmission, interconnection & grid equipment?
- High-voltage transmission equipment, interconnection hardware, grid-enhancing technology, and the EPC firms and developers that build and expand the grid feeding a data center site.
- Which companies make transmission for AI data centers?
- This catalog lists 9 companies on Transmission, interconnection & grid equipment: AESO, CAISO, ERCOT, IESO, ISO-NE, MISO, NYISO, PJM, SPP.
- How does AI change demand for transmission, interconnection & grid equipment?
- AI data centers have made transmission capacity and interconnection queues a visible bottleneck, pulling forward demand for grid-enhancing technology and advanced conductors as faster alternatives to new transmission lines.
- How reliable are these transmission, interconnection & grid equipment supplier placements?
- The 9 placements on this part break down as 6 disclosed, 3 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON