Company lists · Data refreshed September 2026

Top 25 Grid modernization consultants based in the United States

Name: Grid modernization consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 608 companies tracked

RevenueBase identified 608 grid modernization consultants headquartered in the United States as of September 2026 and tracks 23,654 professional contacts across them, including 10,631 with verified work emails. Chicago is the largest hub.

This list covers grid modernization consultants 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 20, 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 20, 2026 86% judged on-target in blind review

608Companies

23,654Contacts tracked

10,631Verified emails

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

The 25 largest grid modernization consultants based in the United States

Ranked by team size

Top 25 of 608 grid modernization consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to grid modernization consultants: 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	Hubbell Incorporated	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 20, 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 20, 2026
2	Westwood Professional Services	Indirect evidence	Plano, TX, United StatesHQ checked Sep 20, 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 20, 2026
3	Ameresco	Indirect evidence	Framingham, MA, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,383 contacts →
	Indirect evidence “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Source: RevenueBase Database · checked Sep 20, 2026
4	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	851 contacts →
	Indirect 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 20, 2026
5	Electric Power Engineers	Partial evidence	Austin, TX, United StatesHQ checked Sep 20, 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 20, 2026
6	Noresco	Indirect evidence	Westborough, MA, United StatesHQ checked Sep 20, 2026	201-500	481 contacts →
	Indirect evidence “NORESCO, a part of Carrier Global Corporation, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.” Source: RevenueBase Database · checked Sep 20, 2026
7	Techserv Engineering	Indirect evidence	Tyler, TX, United StatesHQ checked Sep 20, 2026	501-1,000	448 contacts →
	Indirect evidence “TechServ Consulting and Training, Ltd was established in November 1992.” Source: RevenueBase Database · checked Sep 20, 2026
8	K&a Power	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 20, 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 20, 2026
9	TRIO	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	201-500	383 contacts →
	Indirect evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 20, 2026
10	E Source	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 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 20, 2026
11	Asplundh Engineering Services	Indirect evidence	Willow Grove, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	284 contacts →
	Indirect evidence “Asplundh Engineering Services leverages more than 100 years of experience to provide a superior, single-point solution for engineering, design and testing services to…” Source: RevenueBase Database · checked Sep 20, 2026
12	Quanta Technology, LLC	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 20, 2026	201-500	278 contacts →
	Indirect evidence “Quanta Technology is an expertise-based, independent advisory company providing business and technical expertise to the energy and utility industries.” Source: RevenueBase Database · checked Sep 20, 2026
13	Illumine-I	Indirect evidence	Austin, CA, United StatesHQ checked Sep 20, 2026	201-500	275 contacts →
	Indirect evidence “The world runs on power.” Source: RevenueBase Database · checked Sep 20, 2026
14	Utilities ONE Group	Indirect evidence	Voorhees, NJ, United StatesHQ checked Sep 20, 2026	1,001-5,000	258 contacts →
	Indirect evidence “Utilities One was founded in 2016, evolving from our sister company, MoldCable, which focused on cable installation and repair.” Source: RevenueBase Database · checked Sep 20, 2026
15	PSC Consulting	Indirect evidence	Kirkland, WA, United StatesHQ checked Sep 20, 2026	201-500	254 contacts →
	Indirect evidence “We provide global renewable energy consulting services, focused on empowering clients to navigate the complexities of the energy transition.” Source: RevenueBase Database · checked Sep 20, 2026
16	Base Power Company	Indirect evidence	Austin, TX, United StatesHQ checked Sep 20, 2026	201-500	248 contacts →
	Indirect evidence “Base is building the future of American power.” Source: RevenueBase Database · checked Sep 20, 2026
17	Mosaic	Strong evidence	Renton, WA, United StatesHQ checked Sep 20, 2026	201-500	248 contacts →
	Strong evidence “Mosaic is a consulting firm that delivers custom solutions across the energy, utility, grid operations, and grid modernization space.” Source: RevenueBase Database · checked Sep 20, 2026
18	Nexant	Indirect evidence	Half Moon Bay, CA, United StatesHQ checked Sep 20, 2026	201-500	183 contacts →
	Indirect evidence “Resource Innovations now combined with Nexant is a substantially woman-owned, woman-led energy consulting firm dedicated to creating equal access to clean resources through…” Source: RevenueBase Database · checked Sep 20, 2026
19	Utilicast	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	201-500	181 contacts →
	Indirect evidence “Utilicast is more than just a consulting company.” Source: RevenueBase Database · checked Sep 20, 2026
20	Tantalus Systems	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 20, 2026	201-500	176 contacts →
	Partial evidence “About Tantalus Systems Holding Inc.(TSX: GRID; OTCQX: TGMPF) Tantalus is a technology company dedicated to helping utilities modernize their distribution grids by harnessing the…” Source: RevenueBase Database · checked Sep 20, 2026
21	Power Grid Engineering, LLC	Partial evidence	Lake Mary, FL, United StatesHQ checked Sep 20, 2026	1,001-5,000	160 contacts →
	Partial evidence “Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…” Source: RevenueBase Database · checked Sep 20, 2026
22	PSE Engineers & Consultants	Indirect evidence	Madison, WI, United StatesHQ checked Sep 20, 2026	51-200	157 contacts →
	Indirect evidence “PSE is an electrical energy expert that provides relationship-driven engineering and consulting services for forward-thinking partners who pursue long-term energy solutions.” Source: RevenueBase Database · checked Sep 20, 2026
23	Energetics	Partial evidence	Columbia, MD, United StatesHQ checked Sep 20, 2026	51-200	150 contacts →
	Partial evidence “Energetics is a full-service technical and management consulting company specializing in energy (specifically energy modernization, efficiency, and clean energy) and…” Source: RevenueBase Database · checked Sep 20, 2026
24	Hico America	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 20, 2026	1,001-5,000	137 contacts →
	Indirect evidence “HICO America is the North American headquarters for the HICO family of companies, delivering the infrastructure behind today's most ambitious energy projects.” Source: RevenueBase Database · checked Sep 20, 2026
25	Voltyx	Partial evidence	Maryland Heights, MO, United StatesHQ checked Sep 20, 2026	201-500	135 contacts →
	Partial evidence “Voltyx is an integrated solutions provider focused on guiding our partners through the complex modernization of the electrical infrastructure through vision, strategy, service…” Source: RevenueBase Database · checked Sep 20, 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 modernization consultants. 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 modernization consultants.
Partial evidence: Its own public description names part of grid modernization consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid modernization consultants. 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 608 grid modernization consultants based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 10,631 reachable decision-makers.

Free signup · no credit card

View the full list →

Grid modernization consultants based in the United States at a glance

As of Sep 20, 2026

44.9%Verified-email coverage

38.9Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · Chicago

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

313

11-50

170

51-200

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 608 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 modernization consultants, 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 modernization consultants”. 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 modernization consultants), 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 modernization consultants, 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, 10,631 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 20, 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 grid modernization consultants, 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 modernization consultants are there based in the United States?

RevenueBase identified 608 grid modernization consultants 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?

Hubbell Incorporated, headquartered in Shelton, tops this list with the largest team on record.

Which city has the most grid modernization consultants?

Chicago leads with 15 headquartered companies, followed by Houston (13) and New York (13).

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 10,631 verified decision-maker contacts tracked across these 608 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 608 grid modernization consultants based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Grid modernization consultants 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.