Company lists · Data refreshed September 2026

Top 25 Transmission line monitoring software based in the United States

RevenueBase identified 84 transmission line monitoring software headquartered in the United States as of September 2026 and tracks 2,768 professional contacts across them, including 1,341 with verified work emails and 1,025 with mobile numbers. San Francisco is the largest hub.

This list covers transmission line monitoring software headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
84Companies
2,768Contacts tracked
1,341Verified emails
1,025Mobile numbers
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest transmission line monitoring software based in the United States

Ranked by team size
Top 25 of 84 transmission line monitoring software based in the United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to transmission line monitoring software: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMarlborough, MA, United StatesHQ checked Sep 6, 2026501-1,000619 contacts →

“Doble is the world’s most trusted brand in electrical diagnostics.”

Source: company website · checked Sep 6, 2026
2Partial evidenceFairport, NY, United StatesHQ checked Sep 6, 2026501-1,000494 contacts →

“Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceTallmadge, OH, United StatesHQ checked Sep 6, 2026201-500195 contacts →

“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 6, 202651-200139 contacts →

“Gridware is a technology company focused on protecting and enhancing the electrical grid.”

Source: company website · checked Sep 6, 2026
5Strong evidenceLedyard, CT, United StatesHQ checked Sep 6, 202651-200125 contacts →

“Emprise Corporation provides condition monitoring services, software development, and software support.”

Source: company website · checked Sep 6, 2026
6Partial evidenceSussex, WI, United StatesHQ checked Sep 6, 202651-200103 contacts →

“Dynamic Ratings is dedicated to providing monitoring, control, and communication solutions for electrical apparatus.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 6, 202651-20098 contacts →

“We’re ikeGPS, the PoleOS™ Company.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceFerndale, WA, United StatesHQ checked Sep 6, 202651-20096 contacts →

“Cutsforth specializes in developing innovative new technologies and services to enhance plant asset management.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceBoston, MA, United StatesHQ checked Sep 6, 202651-20089 contacts →

“LineVision is a grid-enhancing technology company enabling electric utilities to deliver affordable, reliable power and accelerate the electrification of the global economy.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceBradenton, FL, United StatesHQ checked Sep 6, 202651-20083 contacts →

“IRISS is the global provider of Electrical Asset Management Solutions that increase safety and reliability, while decreasing costs and human error in the inspection and…”

Source: company website · checked Sep 6, 2026
11Partial evidencePasadena, CA, United StatesHQ checked Sep 6, 202651-20044 contacts →

“Electric Power Group (EPG) is a pioneer in the area of synchrophasor technology based software solutions.”

Source: company website · checked Sep 6, 2026
12Partial evidenceAshburn, VA, United StatesHQ checked Sep 6, 202651-20039 contacts →

“Janitza is a global leader in energy measurement technology, power quality monitoring, energy consumption analysis, providing the timely and reliable data you need to power the AI…”

Source: company website · checked Sep 6, 2026
13Indirect evidenceRosharon, TX, United StatesHQ checked Sep 6, 202651-20036 contacts →

“Tidal Power Services specializes in delivering expert solutions and analysis for all your electrical testing, maintenance, and engineering needs.”

Source: company website · checked Sep 6, 2026
14Strong evidenceDallas, United StatesHQ checked Sep 6, 202651-20029 contacts →

“Electrical measurement company Megger continues its expansion into on-line monitoring and added-value services for electrical power utilities with this acquisition.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202611-5028 contacts →

“PhDsoft Technology Inc.”

Source: company website · checked Sep 6, 2026
16Partial evidenceBoise, ID, United StatesHQ checked Sep 6, 20261-1025 contacts →

“Pitch develops and deploys power line components, such as line sensors and bird flight diverters, utilizing its custom drone platform, Astria, to ensure safe and efficient…”

Source: company website · checked Sep 6, 2026
17Indirect evidenceMiami, FL, United StatesHQ checked Sep 6, 202611-5021 contacts →

“Celebrating 20 years, Force 5, Inc.”

Source: company website · checked Sep 6, 2026
18Partial evidenceSomerville, MA, United StatesHQ checked Sep 6, 20261-1017 contacts →

“NewGrid is a software firm in the electric power industry.”

Source: company website · checked Sep 6, 2026
19Strong evidenceBirmingham, AL, United StatesHQ checked Sep 6, 202611-5015 contacts →

“Vulcan Line Tools offers hardware, software, and services to a range of customers in the electric utility and telecommunication industries.”

Source: company website · checked Sep 6, 2026
20Strong evidenceMadison, WI, United StatesHQ checked Sep 6, 202611-5013 contacts →

“Power Line Systems develops, sells and supports the Industry Standard PLS-CADD, PLS-POLE, and TOWER software for the design and analysis of overhead electric power transmission…”

Source: company website · checked Sep 6, 2026
21Partial evidenceIrvington, United StatesHQ checked Sep 6, 202651-20011 contacts →

Monitoring and Protection Equipment For The Power Industry”

Source: company website · checked Sep 6, 2026
22Indirect evidenceRichmond, VA, United StatesHQ checked Sep 6, 202611-5010 contacts →

“GRID20/20, Inc.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceNorth Miami, FL, United StatesHQ checked Sep 6, 202611-5010 contacts →

“ZTZ Services has been helping utilities protect their power grids for more than 25 years.”

Source: company website · checked Sep 6, 2026
24Partial evidenceWestford, MA, United StatesHQ checked Sep 6, 202611-5010 contacts →

“GridEdge Networks, located in Westford MA, develops and sells highly reliable and cost effective grid protection and monitoring systems to electric utilities and independent power…”

Source: company website · checked Sep 6, 2026
25Partial evidenceHoffman Estates, IL, United StatesHQ checked Sep 6, 202611-509 contacts →

“Innvendt Insights is a technology company that helps businesses that have a large physical footprint improve their operations, using internet-connected sensors and software.”

Source: company website · checked Sep 6, 2026

Showing 25 of 84 transmission line monitoring software based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,341 reachable decision-makers.

Free signup · no credit card

View the full list →

Transmission line monitoring software based in the United States at a glance

As of Sep 6, 2026
48.4%Verified-email coverage
37.0%Mobile-number coverage
33.0Average contacts per company
11-50Median size (employees)
6.0%Largest-city concentration · San Francisco
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
30
51-200
21
201-500
1
501-1,000
2
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among transmission line monitoring software, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “transmission line monitoring software”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names transmission line monitoring software), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among transmission line monitoring software, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,341 across the full list. 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 September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names transmission line monitoring software, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many transmission line monitoring software are there based in the United States?

RevenueBase identified 84 transmission line monitoring software headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Doble Engineering, headquartered in Marlborough, tops this list with the largest team on record.

Which city has the most transmission line monitoring software?

San Francisco leads with 5 headquartered companies, followed by Miami (4) and Bradenton (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,341 verified decision-maker contacts tracked across these 84 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 84 transmission line monitoring software based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Transmission line monitoring software 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 Smart Search, 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.