Company lists · Data refreshed November 2026
Top 19 Transmission system operators based in the United States
RevenueBase identified 30 company matches for transmission system operators associated with the United States as of November 2026 and tracks 28,935 professional contacts across them, including 10,522 with verified work emails. Austin is the largest hub.
This list covers company matches for transmission system operators associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 19 largest transmission system operators based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,678 contacts → | ||||
Exact match “Our team at American Electric Power is committed to improving our customers' lives with reliable, affordable power.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 7,064 contacts → | ||||
Exact match “We are a forward-thinking electric utility centered on integrity, powered by a diverse team of employees committed to making customers’ lives brighter, the environment better and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 3,856 contacts → | ||||
Exact match “Oncor Electric Delivery Company LLC, headquartered in Dallas, is a regulated electricity distribution and transmission business that uses superior asset management skills to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 1,556 contacts → | ||||
Exact match “From electric vehicles to renewables, we’re looking at electricity in a whole new way- because transmission is the key to unlocking our energy future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 1,081 contacts → | ||||
Exact match “The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 27 million Texas customers - representing about 90 percent of the state's electric load.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 900 contacts → | ||||
Exact match “The California Independent System Operator (ISO) manages the flow of electricity across the high-voltage, long-distance power lines that make up 80 percent of California's power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 889 contacts → | ||||
Exact match “Working together to responsibly and economically keep the lights on today and in the future.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 790 contacts → | ||||
Exact match “Keeping the power flowing reliably and at competitive prices to the homes, businesses, and industries across the six diverse states of New England is a complicated, demanding, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 414 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 215 contacts → | ||||
Exact match “Texas-New Mexico Power is an electricity transmission and distribution service provider- We provide electricity to more than homes and businesses throughout Texas- We have about…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 121 contacts → | ||||
Exact match “Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable, secure, safe, and sustainable sources of power and meet the growing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 84 contacts → | ||||
Exact match “Texas-based Wind Energy Transmission Texas, LLC,(WETT) is a regulated transmission provider in Texas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 33 contacts → | ||||
Exact match “New York Transco is a New York-based, New York-focused developer, owner and operator of electric transmission systems that best serve customers, communities, and the environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 27 contacts → | ||||
Exact match “We engineer the power grid” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 21 contacts → | ||||
Exact match “GridLiance is a transmission-only utility company, but we are more than just wires.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 19 contacts → | ||||
Exact match “SPECIALIZING IN HIGH VOLTAGE TRANSMISSION CONSTRUCTION With more than 30 years of technical and construction experience, Spartan delivers the in-depth industry knowledge and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match “Entry Automation Inc is a company based out of Orlando, Florida, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “We are working to build and maintain a modernized electrical grid that delivers power safely and reliably, and integrates renewable energy resources, with the maximum possible…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “transmission system operators”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 19 of 30 transmission system operators based in the United States
See the full list, filter by size, metro and specialty, and access 10,522 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Transmission system operators based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 30 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “transmission system operators” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 10,522 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “transmission system operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many transmission system operators are there based in the United States?
RevenueBase identified 30 company matches for transmission system operators associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
American Electric Power tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most transmission system operators?
Austin leads with 2 company records, followed by Dallas (2) and Houston (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 10,522 professional contacts with verified work emails tracked across these 30 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 30 transmission system operators based in the United States. Start with a free account, no credit card.
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Transmission system operators by geography
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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Company intelligence · public preview
Top 19 transmission system operators based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 30 matching company records for transmission system operators based in the United States, with 28,935 tracked contacts and 10,522 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 19 transmission system operators based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  American Electric Poweraep.comHQ: Columbus, OH, United StatesReported employees: 10001+ | Columbus, OH, United States | 10001+ | Exact match | 11,678 contacts → |
“Our team at American Electric Power is committed to improving our customers' lives with reliable, affordable power.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Firstenergyfirstenergycorp.comHQ: Akron, OH, United StatesReported employees: 10001+ | Akron, OH, United States | 10001+ | Exact match | 7,064 contacts → |
“We are a forward-thinking electric utility centered on integrity, powered by a diverse team of employees committed to making customers’ lives brighter, the environment better and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Oncor Electric Deliveryoncor.comHQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 3,856 contacts → |
“Oncor Electric Delivery Company LLC, headquartered in Dallas, is a regulated electricity distribution and transmission business that uses superior asset management skills to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ITC Holdings Corpitc-holdings.comHQ: Novi, MI, United StatesReported employees: 501-1,000 | Novi, MI, United States | 501-1,000 | Exact match | 1,556 contacts → |
“From electric vehicles to renewables, we’re looking at electricity in a whole new way- because transmission is the key to unlocking our energy future.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ERCOTercot.comHQ: Taylor, TX, United StatesReported employees: 501-1,000 | Taylor, TX, United States | 501-1,000 | Exact match | 1,081 contacts → |
“The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 27 million Texas customers - representing about 90 percent of the state's electric load.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  California ISOcaiso.comHQ: Folsom, CA, United StatesReported employees: 501-1,000 | Folsom, CA, United States | 501-1,000 | Exact match | 900 contacts → |
“The California Independent System Operator (ISO) manages the flow of electricity across the high-voltage, long-distance power lines that make up 80 percent of California's power…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Southwest Power Poolspp.orgHQ: Little Rock, AR, United StatesReported employees: 501-1,000 | Little Rock, AR, United States | 501-1,000 | Exact match | 889 contacts → |
“Working together to responsibly and economically keep the lights on today and in the future.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  ISO NEW England INCiso-ne.comHQ: Holyoke, CT, United StatesReported employees: 501-1,000 | Holyoke, CT, United States | 501-1,000 | Exact match | 790 contacts → |
“Keeping the power flowing reliably and at competitive prices to the homes, businesses, and industries across the six diverse states of New England is a complicated, demanding, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Open Systems Internationalaspentech.comHQ: Bedford, MA, United StatesReported employees: 1,001-5,000 | Bedford, MA, United States | 1,001-5,000 | Exact match | 414 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  Texas-New Mexico Power Tnmptnmp.comHQ: Lewisville, TX, United StatesReported employees: 201-500 | Lewisville, TX, United States | 201-500 | Exact match | 215 contacts → |
“Texas-New Mexico Power is an electricity transmission and distribution service provider- We provide electricity to more than homes and businesses throughout Texas- We have about…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Alpha Generationalphagen.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 121 contacts → |
“Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable, secure, safe, and sustainable sources of power and meet the growing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Wind Energy Transmission Texas, LLCwindenergyoftexas.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 84 contacts → |
“Texas-based Wind Energy Transmission Texas, LLC,(WETT) is a regulated transmission provider in Texas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  NEW York Transconytransco.comHQ: Rye Brook, NY, United StatesReported employees: 11-50 | Rye Brook, NY, United States | 11-50 | Exact match | 33 contacts → |
“New York Transco is a New York-based, New York-focused developer, owner and operator of electric transmission systems that best serve customers, communities, and the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  ART Engineeringartengineeringllc.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 27 contacts → |
“We engineer the power grid” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Gridliancegridliance.comHQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 21 contacts → |
“GridLiance is a transmission-only utility company, but we are more than just wires.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Spartan Infrastructure, INCspartaninfra.comHQ: Mesa, TX, United StatesReported employees: 51-200 | Mesa, TX, United States | 51-200 | Exact match | 19 contacts → |
“SPECIALIZING IN HIGH VOLTAGE TRANSMISSION CONSTRUCTION With more than 30 years of technical and construction experience, Spartan delivers the in-depth industry knowledge and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Irby Constructionirbyconstruction.comHQ: Newton, MS, United StatesReported employees: 1-10 | Newton, MS, United States | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 |  Entry Automation INCentryautomation.comHQ: Orlando, FL, United StatesReported employees: 11-50 | Orlando, FL, United States | 11-50 | Exact match | 3 contacts → |
“Entry Automation Inc is a company based out of Orlando, Florida, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Skysill Power Servicesskysill.netHQ: Glenpool, OK, United StatesReported employees: 11-50 | Glenpool, OK, United States | 11-50 | Exact match | 2 contacts → |
“We are working to build and maintain a modernized electrical grid that delivers power safely and reliably, and integrates renewable energy resources, with the maximum possible…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 19 of 30 company matches
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Transmission system operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
29 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 30 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for transmission system operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transmission system operators did RevenueBase find based in the United States?
The saved snapshot records 30 matching company records, 28,935 tracked contacts and 10,522 verified emails. The public preview displays 19 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Transmission system operators by geography
Cite this list
RevenueBase Data Team. Top 19 transmission system operators based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/transmission-system-operators/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Transmission system operators based in Germany
- Transmission system operators based in India
- Transmission system operators based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
Company intelligence · public preview
Top 19 transmission system operators based in the United States
RevenueBase records 30 matching company records for transmission system operators based in the United States, with 28,935 tracked contacts and 10,522 verified work emails.
This public preview shows 19 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 19 transmission system operators based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | American Electric Poweraep.com HQ: Columbus, OH, United StatesReported employees: 10001+ | Columbus, OH, United States | 10001+ | Exact match | 11,678 contacts → |
“Our team at American Electric Power is committed to improving our customers' lives with reliable, affordable power.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Firstenergyfirstenergycorp.com HQ: Akron, OH, United StatesReported employees: 10001+ | Akron, OH, United States | 10001+ | Exact match | 7,064 contacts → |
“We are a forward-thinking electric utility centered on integrity, powered by a diverse team of employees committed to making customers’ lives brighter, the environment better and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Oncor Electric Deliveryoncor.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 3,856 contacts → |
“Oncor Electric Delivery Company LLC, headquartered in Dallas, is a regulated electricity distribution and transmission business that uses superior asset management skills to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ITC Holdings Corpitc-holdings.com HQ: Novi, MI, United StatesReported employees: 501-1,000 | Novi, MI, United States | 501-1,000 | Exact match | 1,556 contacts → |
“From electric vehicles to renewables, we’re looking at electricity in a whole new way- because transmission is the key to unlocking our energy future.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ERCOTercot.com HQ: Taylor, TX, United StatesReported employees: 501-1,000 | Taylor, TX, United States | 501-1,000 | Exact match | 1,081 contacts → |
“The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 27 million Texas customers - representing about 90 percent of the state's electric load.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | California ISOcaiso.com HQ: Folsom, CA, United StatesReported employees: 501-1,000 | Folsom, CA, United States | 501-1,000 | Exact match | 900 contacts → |
“The California Independent System Operator (ISO) manages the flow of electricity across the high-voltage, long-distance power lines that make up 80 percent of California's power…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Southwest Power Poolspp.org HQ: Little Rock, AR, United StatesReported employees: 501-1,000 | Little Rock, AR, United States | 501-1,000 | Exact match | 889 contacts → |
“Working together to responsibly and economically keep the lights on today and in the future.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | ISO NEW England INCiso-ne.com HQ: Holyoke, CT, United StatesReported employees: 501-1,000 | Holyoke, CT, United States | 501-1,000 | Exact match | 790 contacts → |
“Keeping the power flowing reliably and at competitive prices to the homes, businesses, and industries across the six diverse states of New England is a complicated, demanding, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Open Systems Internationalaspentech.com HQ: Bedford, MA, United StatesReported employees: 1,001-5,000 | Bedford, MA, United States | 1,001-5,000 | Exact match | 414 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | Texas-New Mexico Power Tnmptnmp.com HQ: Lewisville, TX, United StatesReported employees: 201-500 | Lewisville, TX, United States | 201-500 | Exact match | 215 contacts → |
“Texas-New Mexico Power is an electricity transmission and distribution service provider- We provide electricity to more than homes and businesses throughout Texas- We have about…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Alpha Generationalphagen.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 121 contacts → |
“Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable, secure, safe, and sustainable sources of power and meet the growing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Wind Energy Transmission Texas, LLCwindenergyoftexas.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 84 contacts → |
“Texas-based Wind Energy Transmission Texas, LLC,(WETT) is a regulated transmission provider in Texas.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | NEW York Transconytransco.com HQ: Rye Brook, NY, United StatesReported employees: 11-50 | Rye Brook, NY, United States | 11-50 | Exact match | 33 contacts → |
“New York Transco is a New York-based, New York-focused developer, owner and operator of electric transmission systems that best serve customers, communities, and the environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ART Engineeringartengineeringllc.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 27 contacts → |
“We engineer the power grid” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Gridliancegridliance.com HQ: Irving, TX, United StatesReported employees: 51-200 | Irving, TX, United States | 51-200 | Exact match | 21 contacts → |
“GridLiance is a transmission-only utility company, but we are more than just wires.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Spartan Infrastructure, INCspartaninfra.com HQ: Mesa, TX, United StatesReported employees: 51-200 | Mesa, TX, United States | 51-200 | Exact match | 19 contacts → |
“SPECIALIZING IN HIGH VOLTAGE TRANSMISSION CONSTRUCTION With more than 30 years of technical and construction experience, Spartan delivers the in-depth industry knowledge and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Irby Constructionirbyconstruction.com HQ: Newton, MS, United StatesReported employees: 1-10 | Newton, MS, United States | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Entry Automation INCentryautomation.com HQ: Orlando, FL, United StatesReported employees: 11-50 | Orlando, FL, United States | 11-50 | Exact match | 3 contacts → |
“Entry Automation Inc is a company based out of Orlando, Florida, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Skysill Power Servicesskysill.net HQ: Glenpool, OK, United StatesReported employees: 11-50 | Glenpool, OK, United States | 11-50 | Exact match | 2 contacts → |
“We are working to build and maintain a modernized electrical grid that delivers power safely and reliably, and integrates renewable energy resources, with the maximum possible…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 19 of 30 company matches
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Transmission system operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
29 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 30 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for transmission system operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many transmission system operators did RevenueBase find based in the United States?
The saved snapshot records 30 matching company records, 28,935 tracked contacts and 10,522 verified emails. The public preview displays 19 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Transmission system operators by geography
Cite this list
RevenueBase Data Team. Top 19 transmission system operators based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/transmission-system-operators/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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