Company lists · Data refreshed October 2026

Top 25 Grid integration engineering firms based in the United States

RevenueBase identified 2,060 company matches for grid integration engineering firms associated with the United States as of October 2026 and tracks 82,628 professional contacts across them, including 36,051 with verified work emails. Houston is the largest hub.

This list covers company matches for grid integration engineering firms 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 October 13, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 13, 2026 How this list was built
2,060Companies
82,628Contacts tracked
36,051Verified emails
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The 25 largest grid integration engineering firms based in the United States

Ranked by team size
Top 25 of 2,060 company matches for grid integration engineering firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchShelton, CT, United StatesHQ recorded Oct 13, 202610001+4,366 contacts →

Exact match

“Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchLisle, IL, United StatesHQ recorded Oct 13, 20261,001-5,0003,020 contacts →

Exact match

“ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3Exact matchMenasha, WI, United StatesHQ recorded Oct 13, 20261,001-5,0002,979 contacts →

Exact match

“Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4Exact matchChicago, IL, United StatesHQ recorded Oct 13, 20261,001-5,0002,493 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5Exact matchKennesaw, GA, United StatesHQ recorded Oct 13, 20261,001-5,0001,980 contacts →

Exact match

“ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6Exact matchArlington, VA, United StatesHQ recorded Oct 13, 20261,001-5,0001,950 contacts →

Exact match

“To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7Exact matchPlano, TX, United StatesHQ recorded Oct 13, 20261,001-5,0001,801 contacts →

Exact match

“At Westwood, our purpose is to create a better world for people through our work.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchReston, VA, United StatesHQ recorded Oct 13, 20261,001-5,0001,778 contacts →

Exact match

“Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9Exact matchSan Diego, CA, United StatesHQ recorded Oct 13, 20261,001-5,0001,618 contacts →

Exact match

“Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchFargo, ND, United StatesHQ recorded Oct 13, 20261,001-5,0001,460 contacts →

Exact match

“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 13, 20261,001-5,0001,435 contacts →

Exact match

“ISC is an industrial engineering and construction company specializing in comprehensive electrical, instrumentation, and controls solutions.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchMadison, AL, United StatesHQ recorded Oct 13, 20261,001-5,000887 contacts →

Exact match

“Mesa is a full service engineering, procurement, and construction management firm specializing in providing engineering services to electric utility, heavy industrial, and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13Exact matchPortland, OR, United StatesHQ recorded Oct 13, 2026201-500835 contacts →

Exact match

“PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14Exact matchKaty, TX, United StatesHQ recorded Oct 13, 2026501-1,000831 contacts →

Exact match

“Percheron streamlines energy infrastructure projects through a comprehensive EPCM (Engineering, Procurement, Construction Management) approach.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchBellevue, WA, United StatesHQ recorded Oct 13, 20261,001-5,000710 contacts →

Exact match

“For over a quarter century, Prime has been successfully engineering, constructing building, and facilities solutions for our clientele.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16Exact matchEscondido, CA, United StatesHQ recorded Oct 13, 2026501-1,000704 contacts →

Exact match

“Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17Exact matchAustin, TX, United StatesHQ recorded Oct 13, 2026501-1,000678 contacts →

Exact match

“Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchFort Worth, TX, United StatesHQ recorded Oct 13, 20261,001-5,000671 contacts →

Exact match

“Cummings Electrical,(Cummings) is one of the largest providers of electrical contracting services in DFW market.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19Exact matchIron Mountain, MI, United StatesHQ recorded Oct 13, 20261,001-5,000666 contacts →

Exact match

“M.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20Exact matchEden Prairie, MN, United StatesHQ recorded Oct 13, 2026501-1,000664 contacts →

Exact match

“Wunderlich-Malec Engineering is a nationally recognized, 100% employee-owned leader in advanced engineering and control system solutions.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 13, 20261,001-5,000570 contacts →

Exact match

“Saber Power Services, a portfolio company of Greenbelt Capital Partners, is a fully integrated electrical power system services firm providing end-to-end solutions across utility…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22Exact matchEagan, MN, United StatesHQ recorded Oct 13, 20261,001-5,000565 contacts →

Exact match

“Hunt Electric is a national electrical design, build, and maintenance firm based in Eagan, MN.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23Exact matchBoston, MA, United StatesHQ recorded Oct 13, 2026201-500562 contacts →

Exact match

“Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24Exact matchRound Rock, TX, United StatesHQ recorded Oct 13, 2026201-500544 contacts →

Exact match

“RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25Exact matchIrvine, CA, United StatesHQ recorded Oct 13, 20261,001-5,000535 contacts →

Exact match

“ARB Inc.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 25 of 2,060 grid integration engineering firms based in the United States

See the full list, filter by size, metro and specialty, and access 36,051 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grid integration engineering firms based in the United States at a glance

As of Oct 13, 2026
43.6%Verified-email coverage
40.1Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · Houston
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
871
11-50
726
51-200
279
201-500
92
501-1,000
32
1,001-5,000
50
5,001-10,000
2
10001+
5

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 2,060 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 “grid integration engineering firms” 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 36,051 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 October 13, 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 “grid integration engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid integration engineering firms are there based in the United States?

RevenueBase identified 2,060 company matches for grid integration engineering firms associated with the United States as of October 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?

Hubbell Incorporated tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most grid integration engineering firms?

Houston leads with 61 company records, followed by San Diego (31) and Austin (28).

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 36,051 professional contacts with verified work emails tracked across these 2,060 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 October 13, 2026.

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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.