Company lists · Data refreshed September 2026

Top 25 Grid integration consulting companies based in the United States

Name: Grid integration consulting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,337 companies tracked

RevenueBase identified 1,337 grid integration consulting companies headquartered in the United States as of September 2026 and tracks 55,217 professional contacts across them, including 25,007 with verified work emails. Houston is the largest hub.

This list covers grid integration consulting companies 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 19, 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 19, 2026 86% judged on-target in blind review

1,337Companies

55,217Contacts tracked

25,007Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest grid integration consulting companies based in the United States

Ranked by team size

Top 25 of 1,337 grid integration consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to grid integration consulting companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sargent & Lundy	Indirect evidence	Chicago, WY, United StatesHQ checked Sep 19, 2026	1,001-5,000	4,156 contacts →
	Indirect evidence “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Source: RevenueBase Database · checked Sep 19, 2026
2	Hubbell Incorporated	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 19, 2026	10001+	4,053 contacts →
	Indirect evidence “Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
3	Entrust Solutions Group	Partial evidence	Lisle, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,966 contacts →
	Partial evidence “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Source: RevenueBase Database · checked Sep 19, 2026
4	FTI	Indirect evidence	Menasha, WI, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,741 contacts →
	Indirect evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 19, 2026
5	S&c Electric Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,465 contacts →
	Partial evidence “S&C is empowering people to transform the grid.” Source: RevenueBase Database · checked Sep 19, 2026
6	Enercon Services, INC	Indirect evidence	Kennesaw, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,865 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
7	Westwood Professional Services	Indirect evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,661 contacts →
	Indirect evidence “At Westwood, our purpose is to create a better world for people through our work.” Source: RevenueBase Database · checked Sep 19, 2026
8	Dashiell Corporation	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	940 contacts →
	Indirect evidence “Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.” Source: RevenueBase Database · checked Sep 19, 2026
9	Electrical Consultants, INC	Indirect evidence	Billings, MT, United StatesHQ checked Sep 19, 2026	1,001-5,000	890 contacts →
	Indirect evidence “Electrical Consultants, Inc.(ECI) is an employee-owned, national provider of high voltage transmission, substation, and distribution solutions.” Source: RevenueBase Database · checked Sep 19, 2026
10	Willdan	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	851 contacts →
	Partial evidence “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Source: RevenueBase Database · checked Sep 19, 2026
11	Capco Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	715 contacts →
	Partial evidence “For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Source: RevenueBase Database · checked Sep 19, 2026
12	Baker Electric	Indirect evidence	Escondido, CA, United StatesHQ checked Sep 19, 2026	501-1,000	680 contacts →
	Indirect evidence “Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.” Source: RevenueBase Database · checked Sep 19, 2026
13	Electric Power Engineers	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	501-1,000	630 contacts →
	Partial evidence “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: RevenueBase Database · checked Sep 19, 2026
14	Delta Star, INC	Indirect evidence	Lynchburg, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	548 contacts →
	Indirect evidence “Delta Star is recognized as an industry leader in pursuit of continuously improving the performance, delivery and reliability of power to meet the energy needs of the future._…” Source: RevenueBase Database · checked Sep 19, 2026
15	Saber Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	521 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
16	Qualitrol	Partial evidence	Fairport, NY, United StatesHQ checked Sep 19, 2026	501-1,000	494 contacts →
	Partial evidence “Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.” Source: RevenueBase Database · checked Sep 19, 2026
17	RRC Companies	Indirect evidence	Round Rock, TX, United StatesHQ checked Sep 19, 2026	201-500	494 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
18	Babcock Power	Indirect evidence	Danvers, MA, United StatesHQ checked Sep 19, 2026	501-1,000	476 contacts →
	Indirect evidence “Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Source: RevenueBase Database · checked Sep 19, 2026
19	Techserv Engineering	Partial evidence	Tyler, TX, United StatesHQ checked Sep 19, 2026	501-1,000	448 contacts →
	Partial evidence “TechServ Consulting and Training, Ltd was established in November 1992.” Source: RevenueBase Database · checked Sep 19, 2026
20	Open Systems International	Indirect evidence	Bedford, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	422 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	K&a Power	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 19, 2026	201-500	410 contacts →
	Indirect evidence “K&A Power is a global energy infrastructure company focused on developing, engineering, delivering, and operating the critical systems that power modern economies.” Source: RevenueBase Database · checked Sep 19, 2026
22	TRIO	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	383 contacts →
	Indirect evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 19, 2026
23	E Source	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	377 contacts →
	Indirect evidence “For decades, E Source has been a trusted partner to utilities navigating an evolving energy landscape.” Source: RevenueBase Database · checked Sep 19, 2026
24	Capspire	Partial evidence	Tulsa, OK, United StatesHQ checked Sep 19, 2026	201-500	354 contacts →
	Partial evidence “capSpire is a global technology consulting firm driving stronger, smarter outcomes for energy and commodities organizations across the trading value chain.” Source: RevenueBase Database · checked Sep 19, 2026
25	PCI Energy Solutions	Indirect evidence	Norman, OK, United StatesHQ checked Sep 19, 2026	201-500	346 contacts →
	Indirect evidence “PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: grid integration consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names grid integration consulting companies.
Partial evidence: Its own public description names part of grid integration consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid integration consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,337 grid integration consulting companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 25,007 reachable decision-makers.

Free signup · no credit card

View the full list →

Grid integration consulting companies based in the United States at a glance

As of Sep 19, 2026

45.3%Verified-email coverage

41.3Average contacts per company

11-50Median size (employees)

5.2%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

642

11-50

404

51-200

180

201-500

501-1,000

1,001-5,000

10001+

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 1,337 companies.

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 grid integration consulting companies, 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 “grid integration consulting companies”. 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 grid integration consulting companies), 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 grid integration consulting companies, 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, 25,007 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 19, 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.

Grid integration consulting companies by metro

Grid integration consulting companies in Houston70
Grid integration consulting companies in New York30

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 grid integration consulting companies, 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 grid integration consulting companies are there based in the United States?

RevenueBase identified 1,337 grid integration consulting companies 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?

Sargent & Lundy, headquartered in Casper, tops this list with the largest team on record.

Which city has the most grid integration consulting companies?

Houston leads with 70 headquartered companies, followed by New York (30) and Austin (23).

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 25,007 verified decision-maker contacts tracked across these 1,337 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 19, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,337 grid integration consulting companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Grid integration consulting companies by geography

Browse the directory

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.