Company lists · Data refreshed September 2026

Top 25 Electrical infrastructure consulting firms worldwide

RevenueBase identified 45,782 electrical infrastructure consulting firms worldwide as of September 2026 and tracks 990,138 professional contacts across them, including 337,986 with verified work emails and 170,184 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers electrical infrastructure consulting firms worldwide, 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 29, 2026. Country and city lists for electrical infrastructure consulting firms follow the table.

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 29, 2026 86% judged on-target in blind review
45,782Companies
990,138Contacts tracked
337,986Verified emails
170,184Mobile numbers
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The 25 largest electrical infrastructure consulting firms worldwide

Ranked by team size
Top 25 of 45,782 electrical infrastructure consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to electrical infrastructure consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSydney, AustraliaHQ checked Sep 29, 202610001+34,763 contacts →

Indirect evidence

“Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceAberdeen, United KingdomHQ checked Sep 29, 202610001+26,949 contacts →

Partial evidence

“Wood is a global leader in consulting and engineering, delivering critical solutions across energy and materials markets.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceMontreal, QC, CanadaHQ checked Sep 29, 202610001+22,733 contacts →

Indirect evidence

“We are a world-class engineering services and nuclear organization.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceStockholm, SwedenHQ checked Sep 29, 202610001+12,850 contacts →

Indirect evidence

“AFRY is a European leader in engineering, design, and advisory services, with a global reach.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 29, 202610001+10,851 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceMontreal, QC, CanadaHQ checked Sep 29, 202610001+9,992 contacts →

Indirect evidence

“SNC Lavalin is now AtkinsRéalis.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceEpsom, United KingdomHQ checked Sep 29, 202610001+9,297 contacts →

Indirect evidence

“Atkins is now AtkinsRéalis.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceCourbevoie, FranceHQ checked Sep 29, 20265,001-10,0006,518 contacts →

Indirect evidence

“Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceOlathe, KS, United StatesHQ checked Sep 29, 20265,001-10,0006,113 contacts →

Partial evidence

“Terracon is a 100 percent employee-owned consulting engineering firm providing quality services to clients.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 29, 20265,001-10,0005,231 contacts →

Indirect evidence

“SMEC is a global engineering, management and development consultancy with a 70-year history of delivering advanced solutions on a global scale across urban development…”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidencePittsburgh, PA, United StatesHQ checked Sep 29, 20265,001-10,0004,362 contacts →

Strong evidence

“Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceChicago, WY, United StatesHQ checked Sep 29, 20261,001-5,0004,156 contacts →

Indirect evidence

“Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceDallas, TX, United StatesHQ checked Sep 29, 202610001+4,089 contacts →

Partial evidence

“Primoris Services Corporation (NYSE: PRIM) is a leading provider of critical infrastructure services to the utility, energy, and renewables markets throughout the United States…”

Source: RevenueBase Database · checked Sep 29, 2026
14Strong evidenceShelton, CT, United StatesHQ checked Sep 29, 202610001+4,053 contacts →

Strong 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 29, 2026
15Indirect evidenceHailey, ID, United StatesHQ checked Sep 29, 20261,001-5,0004,013 contacts →

Indirect evidence

“POWER Engineers is now part of WSP.”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceTinley Park, IL, United StatesHQ checked Sep 29, 20261,001-5,0003,863 contacts →

Strong evidence

“Panduit, a global leader in electrical and network infrastructure solutions, thrives on ingenuity and enterprise.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceCoral Gables, FL, United StatesHQ checked Sep 29, 20265,001-10,0003,207 contacts →

Indirect evidence

“MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.”

Source: RevenueBase Database · checked Sep 29, 2026
18Strong evidenceLisle, IL, United StatesHQ checked Sep 29, 20261,001-5,0002,966 contacts →

Strong 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 29, 2026
19Indirect evidenceMenasha, WI, United StatesHQ checked Sep 29, 20261,001-5,0002,741 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 29, 2026
20Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20265,001-10,0002,567 contacts →

Partial evidence

“IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceOslo, NorwayHQ checked Sep 29, 20261,001-5,0002,553 contacts →

Partial evidence

“Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceBunnik, NetherlandsHQ checked Sep 29, 20265,001-10,0002,457 contacts →

Partial evidence

“Bij Equans combineren we technische expertise met digitale innovatie voor klanten in de industrie, utiliteit en infrastructuur.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceBarueri, BrazilHQ checked Sep 29, 20261,001-5,0002,223 contacts →

Partial evidence

“Fundada em 1965 e com mais de 40 anos de experiência, a Engevix é a maior empresa do segmento de engenharia consultiva do Brasil.”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceChantilly, VA, United StatesHQ checked Sep 29, 20261,001-5,0002,210 contacts →

Partial evidence

“ECS Group of Companies is a Chantilly, VA-based consulting engineering firm.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 29, 202610001+2,204 contacts →

Indirect evidence

“Fundada em abril de em Belo Horizonte (MG), a Tabocas é referência nacional na modalidade EPC Full, dentro dos setores de construção e engenharia civil, com foco de atuação na…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 45,782 electrical infrastructure consulting firms worldwide

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Electrical infrastructure consulting firms worldwide at a glance

As of Sep 29, 2026
34.1%Verified-email coverage
17.2%Mobile-number coverage
21.6Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Sao Paulo
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
22,573
11-50
15,364
51-200
5,278
201-500
1,191
501-1,000
428
1,001-5,000
360
5,001-10,000
38
10001+
50

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 electrical infrastructure consulting firms, 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.
Coverage
39 countries, largest first: the United States, Brazil, the United Kingdom, France, Germany, Canada, Australia, Italy, Spain, the Netherlands and 29 more. Country and city lists for electrical infrastructure consulting firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “electrical infrastructure consulting firms”. 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 electrical infrastructure consulting firms), 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 electrical infrastructure consulting firms, and records with no verified work email.
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, 337,986 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 29, 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.

Electrical infrastructure consulting firms by location

154 lists · largest first

Every Electrical infrastructure consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 electrical infrastructure consulting firms, 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 electrical infrastructure consulting firms are there worldwide?

RevenueBase identified 45,782 electrical infrastructure consulting firms worldwide 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?

Worley, headquartered in Sydney, tops this list with the largest team on record.

Which country has the most electrical infrastructure consulting firms?

The United States leads with 12,782 companies, followed by Brazil (4,820) and the United Kingdom (4,362). Every electrical infrastructure consulting firms list by country and city is linked on this page.

Which city has the most electrical infrastructure consulting firms?

Sao Paulo leads with 634 headquartered companies, followed by London (458) and Houston (365).

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 337,986 verified decision-maker contacts tracked across these 45,782 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 29, 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 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.