Company lists · Data refreshed September 2026

Top 25 Substation monitoring software based in the United States

RevenueBase identified 93 substation monitoring software headquartered in the United States as of September 2026 and tracks 15,085 professional contacts across them, including 5,405 with verified work emails and 4,648 with mobile numbers. Houston is the largest hub.

This list covers substation 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
93Companies
15,085Contacts tracked
5,405Verified emails
4,648Mobile numbers
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The 25 largest substation monitoring software based in the United States

Ranked by team size
Top 25 of 93 substation 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 substation 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 evidencePullman, WA, United StatesHQ checked Sep 6, 20265,001-10,0006,489 contacts →

“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 6, 20261,001-5,0002,465 contacts →

“S&C is empowering people to transform the grid.”

Source: company website · checked Sep 6, 2026
3Indirect 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
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 20261,001-5,000511 contacts →

“RESA Power is your ONE-STOP for all of your power needs.”

Source: company website · checked Sep 6, 2026
5Partial 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
6Indirect evidenceBristol, VA, United StatesHQ checked Sep 6, 2026501-1,000221 contacts →

“Electro-Mechanical, LLC is a global leader in developing and manufacturing technologies used for electrical power distribution switching, power quality and power protection…”

Source: company website · checked Sep 6, 2026
7Partial 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
8Indirect 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
9Partial 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
10Partial evidenceAltamonte Springs, FL, United StatesHQ checked Sep 6, 202611-50100 contacts →

“North American Substation Services is an electrical/electronic manufacturing company based out of 445 Douglas Ave, Altamonte Springs, Florida, United States.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceHolbrook, MA, United StatesHQ checked Sep 6, 2026n/a91 contacts →

“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.”

Source: company website · checked Sep 6, 2026
12Partial 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
13Indirect evidenceCorona, CA, United StatesHQ checked Sep 6, 202611-5041 contacts →

“Design, Manufacture, and Implementation of Electrical Distribution Analyzers for Production, Maintenance, Training and Field Service Activities.”

Source: company website · checked Sep 6, 2026
14Partial 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
15Indirect evidenceMiami, FL, United StatesHQ checked Sep 6, 202611-5021 contacts →

“Celebrating 20 years, Force 5, Inc.”

Source: company website · checked Sep 6, 2026
16Indirect evidenceCharlotte, CA, United StatesHQ checked Sep 6, 202611-5019 contacts →

“Applied Power Technologies, Inc (APT) is a nationwide energy power solutions specialist transforming energy data into actionable energy decisions for commercial enterprises.”

Source: company website · checked Sep 6, 2026
17Partial 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
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 6, 202651-20015 contacts →

“Founded in and headquartered in Houston, TX, ETI is a vertically integrated designer and manufacturer of highly engineered electrical power distribution solutions.”

Source: company website · checked Sep 6, 2026
19Partial evidencePortland, OR, United StatesHQ checked Sep 6, 2026n/a15 contacts →

“EasyPower is a leading software used by electrical engineers and consultants for power system design and management.”

Source: company website · checked Sep 6, 2026
20Partial 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
21Indirect evidenceEldridge, IA, United StatesHQ checked Sep 6, 202611-5014 contacts →
Source: company website · checked Sep 6, 2026
22Partial evidenceDublin, OH, United StatesHQ checked Sep 6, 202611-5013 contacts →

“We provide industry leading consulting and software for electric utilities.”

Source: company website · checked Sep 6, 2026
23Partial evidenceErlanger, KY, United StatesHQ checked Sep 6, 202611-5013 contacts →

“Qualus Solutions provides field services for the upgrading, testing, and maintenance of the reliability and efficiency of substation, generation, and power systems equipment.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceRedwood City, CA, United StatesHQ checked Sep 6, 202611-5013 contacts →

“For over 30 years, Congruitive (a Tantalus Systems Holding) has developed advanced technology solutions that give utilities and renewable energy producers the power to manage and…”

Source: company website · checked Sep 6, 2026
25Indirect evidenceMiami, FL, United StatesHQ checked Sep 6, 202611-5013 contacts →

“We are on a mission to help customers electrify the world!”

Source: company website · checked Sep 6, 2026

Showing 25 of 93 substation monitoring software based in the United States

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Substation monitoring software based in the United States at a glance

As of Sep 6, 2026
35.8%Verified-email coverage
30.8%Mobile-number coverage
162.2Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
42
51-200
16
201-500
2
501-1,000
3
1,001-5,000
2
5,001-10,000
2

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 substation 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 “substation 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 substation 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 substation 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, 5,405 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 substation 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 substation monitoring software are there based in the United States?

RevenueBase identified 93 substation 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?

Schweitzer Engineering Laboratories SEL, headquartered in Pullman, tops this list with the largest team on record.

Which city has the most substation monitoring software?

Houston leads with 4 headquartered companies, followed by Bristol (2) and Chicago (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 5,405 verified decision-maker contacts tracked across these 93 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.

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Related lists

Substation 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.