Company lists · Data refreshed November 2026
Top 25 Panel testing and maintenance contractors based in the United States
RevenueBase identified 427 company matches for panel testing and maintenance contractors associated with the United States as of November 2026 and tracks 5,096 professional contacts across them, including 1,674 with verified work emails. Houston is the largest hub.
This list covers company matches for panel testing and maintenance contractors 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 25 largest panel testing and maintenance contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,324 contacts → | ||||
Exact match “Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 678 contacts → | ||||
Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 270 contacts → | ||||
Exact match “In business since 1971, Electrical Reliability Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 106 contacts → | ||||
Exact match “For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 99 contacts → | ||||
Exact match “Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 95 contacts → | ||||
Exact match “Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 74 contacts → | ||||
Exact match “Vision: To be the Global Power Protection Expert Mission: Deliver exceptional testing, maintenance, engineering, and commissioning services with uncompromising quality, safety…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 64 contacts → | ||||
Exact match “WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 63 contacts → | ||||
Exact match “ABM Electrical Power Solutions, LLC is an electrical power engineering, testing, and maintenance company based out of 4390 Parliament Pl, Lanham, Maryland, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 57 contacts → | ||||
Exact match “Billitier Electric is a premier single source electrical contractor who can provide all facets of electrical services, while continuously keeping our most important assets in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 41 contacts → | ||||
Exact match “EPST is a NETA Certified, Independent Electrical Testing & Engineering Organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 39 contacts → | ||||
Exact match “At Titan we are dedicated to keeping linemen safe through quality work and excellent customer service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 39 contacts → | ||||
Exact match “The talented Field engineers at HIVOLT Advanced provide electrical testing and commissioning services in a safe and reliable manner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 36 contacts → | ||||
Exact match “Tidal Power Services specializes in delivering expert solutions and analysis for all your electrical testing, maintenance, and engineering needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 36 contacts → | ||||
Exact match “CBS Field Services is bringing together Western Electrical Services (WES) and PowerTech Services (PTS) to form one company to provide engineering services and electrical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 34 contacts → | ||||
Exact match “Since 1981, A-American Electric has been keeping Western North Carolina families and businesses safe-one project at a time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 32 contacts → | ||||
Exact match “AMP Quality Energy Services performs acceptance and maintenance tests on electrical power apparatus.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 31 contacts → | ||||
Exact match “RDS Electric provides electrical services to residential, commercial and industrial customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 29 contacts → | ||||
Exact match “At Pacman HVAC | Electric | Fire with deep industry experience, our mission is to exceed the expectations of every client who calls on us for A/C or electrical services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 28 contacts → | ||||
Exact match “Sentinel Power Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “Coastal Power Systems is a critical power infrastructure manufacturer and service provider supporting Data Centers, industrial, utility, commercial, and mission-critical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 28 contacts → | ||||
Exact match “Western Electrical Services, Inc.(WES) formerly known as Advanced Electrical Testing (AET) has been performing electrical testing services since 1996, as part of Northwest Circuit…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 28 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 27 contacts → | ||||
Exact match “We are a family owned and operated electrical contracting business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 22 contacts → | ||||
Exact match “Powell Electric is an electrical/electronic manufacturing company based out of 2025 Clarksdale Ave, Memphis, Tennessee, United States.” 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 “panel testing and maintenance contractors”. 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 25 of 427 panel testing and maintenance contractors based in the United States
See the full list, filter by size, metro and specialty, and access 1,674 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Panel testing and maintenance contractors 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 427 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 “panel testing and maintenance contractors” 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 1,674 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 “panel testing and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many panel testing and maintenance contractors are there based in the United States?
RevenueBase identified 427 company matches for panel testing and maintenance contractors 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?
Shermco Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most panel testing and maintenance contractors?
Houston leads with 9 company records, followed by Los Angeles (6) and Tampa (5).
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 1,674 professional contacts with verified work emails tracked across these 427 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 427 panel testing and maintenance contractors based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Panel testing and maintenance contractors by geography
- Panel testing and maintenance contractors based in Australia
- Panel testing and maintenance contractors based in Brazil
- Panel testing and maintenance contractors based in Canada
- Panel testing and maintenance contractors based in Germany
- Panel testing and maintenance contractors based in India
- Panel testing and maintenance contractors based in the Netherlands
- Panel testing and maintenance contractors based in Switzerland
- Panel testing and maintenance contractors based in the United Kingdom
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Panel testing and maintenance contractors based in Australia
- Panel testing and maintenance contractors based in Brazil
- Panel testing and maintenance contractors based in Canada
- Panel testing and maintenance contractors based in Germany
- Panel testing and maintenance contractors based in India
- Panel testing and maintenance contractors based in the Netherlands
Company intelligence · public preview
Top 25 panel testing and maintenance contractors 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 427 matching company records for panel testing and maintenance contractors based in the United States, with 5,096 tracked contacts and 1,674 verified work emails.
This public preview shows 25 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 25 panel testing and maintenance contractors 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 |  Shermco Industriesshermco.comHQ: Irving, OK, United StatesReported employees: 1,001-5,000 | Irving, OK, United States | 1,001-5,000 | Exact match | 1,324 contacts → |
“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Electric Power Systemsvoltyx.comHQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Electrical Reliability Services, INCers.vertiv.comHQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Technical Diagnostic Servicestdssolutions.comHQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 106 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Master Electricmasterelectric.comHQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 99 contacts → |
“Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Electrical Engineering & Service Co., INCeescousa.comHQ: Holbrook, MA, United StatesReported employees: Not recorded | Holbrook, MA, United States | Not recorded | Exact match | 95 contacts → |
“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Praetorian Power Protection LLCpraetorianpower.comHQ: Seattle, OR, United StatesReported employees: 51-200 | Seattle, OR, United States | 51-200 | Exact match | 74 contacts → |
“Vision: To be the Global Power Protection Expert Mission: Deliver exceptional testing, maintenance, engineering, and commissioning services with uncompromising quality, safety…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Power Engineering Services, LLCpe-svcs.comHQ: Converse, TX, United StatesReported employees: 51-200 | Converse, TX, United States | 51-200 | Exact match | 64 contacts → |
“WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ABM Electrical Power Solutions, LLCabmpowersolution.abm.comHQ: Lanham, MD, United StatesReported employees: 201-500 | Lanham, MD, United States | 201-500 | Exact match | 63 contacts → |
“ABM Electrical Power Solutions, LLC is an electrical power engineering, testing, and maintenance company based out of 4390 Parliament Pl, Lanham, Maryland, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Billitier Electric, INCbillitierelectric.comHQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 57 contacts → |
“Billitier Electric is a premier single source electrical contractor who can provide all facets of electrical services, while continuously keeping our most important assets in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  EPS Technologyeps-technology.comHQ: Durham, CT, United StatesReported employees: 51-200 | Durham, CT, United States | 51-200 | Exact match | 41 contacts → |
“EPST is a NETA Certified, Independent Electrical Testing & Engineering Organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Titan Utility Servicestitanutility.netHQ: Tickfaw, LA, United StatesReported employees: 51-200 | Tickfaw, LA, United States | 51-200 | Exact match | 39 contacts → |
“At Titan we are dedicated to keeping linemen safe through quality work and excellent customer service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Hivolt Advancedhivoltadvanced.comHQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 39 contacts → |
“The talented Field engineers at HIVOLT Advanced provide electrical testing and commissioning services in a safe and reliable manner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Tidal Power Services, LLCtidalpowerservices.comHQ: Rosharon, TX, United StatesReported employees: 51-200 | Rosharon, TX, United States | 51-200 | Exact match | 36 contacts → |
“Tidal Power Services specializes in delivering expert solutions and analysis for all your electrical testing, maintenance, and engineering needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  CBS Field Servicescbsfieldservices.comHQ: Phoenix, FL, United StatesReported employees: 51-200 | Phoenix, FL, United States | 51-200 | Exact match | 36 contacts → |
“CBS Field Services is bringing together Western Electrical Services (WES) and PowerTech Services (PTS) to form one company to provide engineering services and electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  A-American Electric INCa-americanelectric.comHQ: Fletcher, NC, United StatesReported employees: 51-200 | Fletcher, NC, United States | 51-200 | Exact match | 34 contacts → |
“Since 1981, A-American Electric has been keeping Western North Carolina families and businesses safe-one project at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  AMP Quality Energy Servicesampqes.comHQ: Decatur, AL, United StatesReported employees: 11-50 | Decatur, AL, United States | 11-50 | Exact match | 32 contacts → |
“AMP Quality Energy Services performs acceptance and maintenance tests on electrical power apparatus.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  RDS Electric, INCrdselectric.comHQ: Glendale, United StatesReported employees: 11-50 | Glendale, United States | 11-50 | Exact match | 31 contacts → |
“RDS Electric provides electrical services to residential, commercial and industrial customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Pacman Hvac Electric Firepacmanhef.comHQ: Sunrise, FL, United StatesReported employees: 51-200 | Sunrise, FL, United States | 51-200 | Exact match | 29 contacts → |
“At Pacman HVAC | Electric | Fire with deep industry experience, our mission is to exceed the expectations of every client who calls on us for A/C or electrical services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Sentinel Power Servicessentinelpowerservices.comHQ: Tulsa, TX, United StatesReported employees: 51-200 | Tulsa, TX, United States | 51-200 | Exact match | 28 contacts → |
“Sentinel Power Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Coastal Power Systemscoastalpowersystems.comHQ: Tomball, TX, United StatesReported employees: 11-50 | Tomball, TX, United States | 11-50 | Exact match | 28 contacts → |
“Coastal Power Systems is a critical power infrastructure manufacturer and service provider supporting Data Centers, industrial, utility, commercial, and mission-critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Western Electrical Services, INCwesternelectricalservices.comHQ: Seattle, CA, United StatesReported employees: 51-200 | Seattle, CA, United States | 51-200 | Exact match | 28 contacts → |
“Western Electrical Services, Inc.(WES) formerly known as Advanced Electrical Testing (AET) has been performing electrical testing services since 1996, as part of Northwest Circuit…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  United Power Services, INCunited-power.comHQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 |  LMS Electric & Plumbinglmselectric.comHQ: Montrose, CA, United StatesReported employees: 11-50 | Montrose, CA, United States | 11-50 | Exact match | 27 contacts → |
“We are a family owned and operated electrical contracting business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Powell Electricpowell-electric.com HQ: Memphis, TN, United StatesReported employees: 11-50 | Memphis, TN, United States | 11-50 | Exact match | 22 contacts → |
“Powell Electric is an electrical/electronic manufacturing company based out of 2025 Clarksdale Ave, Memphis, Tennessee, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 427 company matches
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Panel testing and maintenance contractors: 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
423 records in the displayed employee bands.
4 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 427 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 panel testing and maintenance contractors?
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 panel testing and maintenance contractors did RevenueBase find based in the United States?
The saved snapshot records 427 matching company records, 5,096 tracked contacts and 1,674 verified emails. The public preview displays 25 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
Panel testing and maintenance contractors by geography
- Panel testing and maintenance contractors based in Australia
- Panel testing and maintenance contractors based in Brazil
- Panel testing and maintenance contractors based in Canada
- Panel testing and maintenance contractors based in Germany
- Panel testing and maintenance contractors based in India
- Panel testing and maintenance contractors based in the Netherlands
- Panel testing and maintenance contractors based in Switzerland
- Panel testing and maintenance contractors based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 panel testing and maintenance contractors based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/panel-testing-and-maintenance-contractors/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
- Panel testing and maintenance contractors based in Australia
- Panel testing and maintenance contractors based in Brazil
- Panel testing and maintenance contractors based in Canada
- Panel testing and maintenance contractors based in Germany
- Panel testing and maintenance contractors based in India
- Panel testing and maintenance contractors based in the Netherlands
Company intelligence · public preview
Top 25 panel testing and maintenance contractors based in the United States
RevenueBase records 427 matching company records for panel testing and maintenance contractors based in the United States, with 5,096 tracked contacts and 1,674 verified work emails.
This public preview shows 25 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 25 panel testing and maintenance contractors 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 | Shermco Industriesshermco.com HQ: Irving, OK, United StatesReported employees: 1,001-5,000 | Irving, OK, United States | 1,001-5,000 | Exact match | 1,324 contacts → |
“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Electric Power Systemsvoltyx.com HQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Electrical Reliability Services, INCers.vertiv.com HQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Technical Diagnostic Servicestdssolutions.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 106 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Master Electricmasterelectric.com HQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 99 contacts → |
“Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Electrical Engineering & Service Co., INCeescousa.com HQ: Holbrook, MA, United StatesReported employees: Not recorded | Holbrook, MA, United States | Not recorded | Exact match | 95 contacts → |
“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Praetorian Power Protection LLCpraetorianpower.com HQ: Seattle, OR, United StatesReported employees: 51-200 | Seattle, OR, United States | 51-200 | Exact match | 74 contacts → |
“Vision: To be the Global Power Protection Expert Mission: Deliver exceptional testing, maintenance, engineering, and commissioning services with uncompromising quality, safety…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Power Engineering Services, LLCpe-svcs.com HQ: Converse, TX, United StatesReported employees: 51-200 | Converse, TX, United States | 51-200 | Exact match | 64 contacts → |
“WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ABM Electrical Power Solutions, LLCabmpowersolution.abm.com HQ: Lanham, MD, United StatesReported employees: 201-500 | Lanham, MD, United States | 201-500 | Exact match | 63 contacts → |
“ABM Electrical Power Solutions, LLC is an electrical power engineering, testing, and maintenance company based out of 4390 Parliament Pl, Lanham, Maryland, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Billitier Electric, INCbillitierelectric.com HQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 57 contacts → |
“Billitier Electric is a premier single source electrical contractor who can provide all facets of electrical services, while continuously keeping our most important assets in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | EPS Technologyeps-technology.com HQ: Durham, CT, United StatesReported employees: 51-200 | Durham, CT, United States | 51-200 | Exact match | 41 contacts → |
“EPST is a NETA Certified, Independent Electrical Testing & Engineering Organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Titan Utility Servicestitanutility.net HQ: Tickfaw, LA, United StatesReported employees: 51-200 | Tickfaw, LA, United States | 51-200 | Exact match | 39 contacts → |
“At Titan we are dedicated to keeping linemen safe through quality work and excellent customer service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Hivolt Advancedhivoltadvanced.com HQ: Indianapolis, IN, United StatesReported employees: 51-200 | Indianapolis, IN, United States | 51-200 | Exact match | 39 contacts → |
“The talented Field engineers at HIVOLT Advanced provide electrical testing and commissioning services in a safe and reliable manner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Tidal Power Services, LLCtidalpowerservices.com HQ: Rosharon, TX, United StatesReported employees: 51-200 | Rosharon, TX, United States | 51-200 | Exact match | 36 contacts → |
“Tidal Power Services specializes in delivering expert solutions and analysis for all your electrical testing, maintenance, and engineering needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | CBS Field Servicescbsfieldservices.com HQ: Phoenix, FL, United StatesReported employees: 51-200 | Phoenix, FL, United States | 51-200 | Exact match | 36 contacts → |
“CBS Field Services is bringing together Western Electrical Services (WES) and PowerTech Services (PTS) to form one company to provide engineering services and electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | A-American Electric INCa-americanelectric.com HQ: Fletcher, NC, United StatesReported employees: 51-200 | Fletcher, NC, United States | 51-200 | Exact match | 34 contacts → |
“Since 1981, A-American Electric has been keeping Western North Carolina families and businesses safe-one project at a time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | AMP Quality Energy Servicesampqes.com HQ: Decatur, AL, United StatesReported employees: 11-50 | Decatur, AL, United States | 11-50 | Exact match | 32 contacts → |
“AMP Quality Energy Services performs acceptance and maintenance tests on electrical power apparatus.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | RDS Electric, INCrdselectric.com HQ: Glendale, United StatesReported employees: 11-50 | Glendale, United States | 11-50 | Exact match | 31 contacts → |
“RDS Electric provides electrical services to residential, commercial and industrial customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Pacman Hvac Electric Firepacmanhef.com HQ: Sunrise, FL, United StatesReported employees: 51-200 | Sunrise, FL, United States | 51-200 | Exact match | 29 contacts → |
“At Pacman HVAC | Electric | Fire with deep industry experience, our mission is to exceed the expectations of every client who calls on us for A/C or electrical services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sentinel Power Servicessentinelpowerservices.com HQ: Tulsa, TX, United StatesReported employees: 51-200 | Tulsa, TX, United States | 51-200 | Exact match | 28 contacts → |
“Sentinel Power Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Coastal Power Systemscoastalpowersystems.com HQ: Tomball, TX, United StatesReported employees: 11-50 | Tomball, TX, United States | 11-50 | Exact match | 28 contacts → |
“Coastal Power Systems is a critical power infrastructure manufacturer and service provider supporting Data Centers, industrial, utility, commercial, and mission-critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Western Electrical Services, INCwesternelectricalservices.com HQ: Seattle, CA, United StatesReported employees: 51-200 | Seattle, CA, United States | 51-200 | Exact match | 28 contacts → |
“Western Electrical Services, Inc.(WES) formerly known as Advanced Electrical Testing (AET) has been performing electrical testing services since 1996, as part of Northwest Circuit…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | United Power Services, INCunited-power.com HQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | LMS Electric & Plumbinglmselectric.com HQ: Montrose, CA, United StatesReported employees: 11-50 | Montrose, CA, United States | 11-50 | Exact match | 27 contacts → |
“We are a family owned and operated electrical contracting business.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Powell Electricpowell-electric.com HQ: Memphis, TN, United StatesReported employees: 11-50 | Memphis, TN, United States | 11-50 | Exact match | 22 contacts → |
“Powell Electric is an electrical/electronic manufacturing company based out of 2025 Clarksdale Ave, Memphis, Tennessee, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 427 company matches
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Panel testing and maintenance contractors: 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
423 records in the displayed employee bands.
4 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 427 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 panel testing and maintenance contractors?
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 panel testing and maintenance contractors did RevenueBase find based in the United States?
The saved snapshot records 427 matching company records, 5,096 tracked contacts and 1,674 verified emails. The public preview displays 25 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.
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Cite this list
RevenueBase Data Team. Top 25 panel testing and maintenance contractors based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/panel-testing-and-maintenance-contractors/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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- Panel testing and maintenance contractors based in Australia
- Panel testing and maintenance contractors based in Brazil
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- Panel testing and maintenance contractors based in Germany
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