Company lists · Data refreshed September 2026

Top 25 Electrical design consultants worldwide

Name: Electrical design consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 39,116 companies tracked

RevenueBase identified 39,116 electrical design consultants worldwide as of September 2026 and tracks 375,089 professional contacts across them, including 94,658 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers electrical design consultants 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 19, 2026. Country and city lists for electrical design consultants 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 19, 2026 86% judged on-target in blind review

39,116Companies

375,089Contacts tracked

94,658Verified emails

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The 25 largest electrical design consultants worldwide

Ranked by team size

Top 25 of 39,116 electrical design consultants worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical design 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	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	IES Holdings	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,567 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 19, 2026
3	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
4	Shaker Consultancy Group	Partial evidence	Cairo, EgyptHQ checked Sep 19, 2026	1,001-5,000	1,833 contacts →
	Partial evidence “Since its founding in 1982, Shaker has established itself as one of the leading engineering and design firms across the MENA region, with offices in 8 countries and projects…” Source: RevenueBase Database · checked Sep 19, 2026
5	Engelmig Energia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,818 contacts →
	Indirect evidence “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Source: RevenueBase Database · checked Sep 19, 2026
6	Helix Electric	Strong evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,560 contacts →
	Strong evidence “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Source: RevenueBase Database · checked Sep 19, 2026
7	Kirby Group Engineering	Partial evidence	Limerick, IrelandHQ checked Sep 19, 2026	1,001-5,000	1,486 contacts →
	Partial evidence “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
8	Control Construções Ltda	Indirect evidence	Joao Pessoa, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,337 contacts →
	Indirect evidence “Fundada em na cidade de João Pessoa, a empresa se tornou especialista nas áreas de construção e prestação de serviços no setor elétrico.” Source: RevenueBase Database · checked Sep 19, 2026
9	Hoare LEA	Strong evidence	London, United KingdomHQ checked Sep 19, 2026	501-1,000	1,103 contacts →
	Strong evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 19, 2026
10	Dashiell Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	940 contacts →
	Partial 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
11	Mesa Associates, INC	Partial evidence	Madison, AL, United StatesHQ checked Sep 19, 2026	1,001-5,000	897 contacts →
	Partial evidence “Mesa is a full service engineering, procurement, and construction management firm specializing in providing engineering services to electric utility, heavy industrial, and…” Source: RevenueBase Database · checked Sep 19, 2026
12	Black & White Engineering	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 19, 2026	1,001-5,000	888 contacts →
	Partial evidence “Black & White Engineering is a global, award-winning critical buildings and infrastructure engineering consultancy.” Source: RevenueBase Database · checked Sep 19, 2026
13	MSE Engenharia	Indirect evidence	Londrina, BrazilHQ checked Sep 19, 2026	201-500	826 contacts →
	Indirect evidence “Com 46 anos de profundo know-how, adquirido através do atendimento aos mais diversos segmentos industriais, a MSE Engenharia é uma empresa que se orgulha de hoje ser completa em…” Source: RevenueBase Database · checked Sep 19, 2026
14	Flanders	Indirect evidence	Evansville, IN, United StatesHQ checked Sep 19, 2026	501-1,000	789 contacts →
	Indirect evidence “FLANDERS, Leverage our legacy.” Source: RevenueBase Database · checked Sep 19, 2026
15	Elec-Tech Electrical Contractors	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 19, 2026	n/a	782 contacts →
	Indirect evidence “WELCOME TO OUR WEBSITE!” Source: RevenueBase Database · checked Sep 19, 2026
16	Sigma S.A. Chile	Indirect evidence	Santiago, ChileHQ checked Sep 19, 2026	201-500	757 contacts →
	Indirect evidence “Somos una empresa de excelencia que desarrolla servicios integrales de Estudios Eléctricos, ingeniería, montaje industrial, geomensura, apoyo profesional, inspección técnica y…” Source: RevenueBase Database · checked Sep 19, 2026
17	PAE	Strong evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	201-500	744 contacts →
	Strong evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 19, 2026
18	ME Engineers	Partial evidence	Golden, CO, United StatesHQ checked Sep 19, 2026	201-500	696 contacts →
	Partial evidence “ME Engineers has earned a reputation as a global leader in the design of innovative MEPT systems that bring to life the world's most innovative sports and entertainment venues.” Source: RevenueBase Database · checked Sep 19, 2026
19	CME	Partial evidence	Oeiras, PortugalHQ checked Sep 19, 2026	1,001-5,000	681 contacts →
	Partial evidence “Engineering Service Provider / Contractor on Telecom, IT, GIS, Electricity, Renewable Energy, Energy Generation, Hydraulic Facilities, Gas, Pipeline, Industrial installations…” Source: RevenueBase Database · checked Sep 19, 2026
20	Smith Andersen	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 19, 2026	501-1,000	672 contacts →
	Indirect evidence “What does it take to be one of Canada’s most respected integrated engineering firms?” Source: RevenueBase Database · checked Sep 19, 2026
21	Prime Electric	Indirect evidence	Bellevue, WA, United StatesHQ checked Sep 19, 2026	1,001-5,000	670 contacts →
	Indirect evidence “For over a quarter century, Prime has been successfully engineering, constructing building, and facilities solutions for our clientele.” Source: RevenueBase Database · checked Sep 19, 2026
22	Cache Valley Electric	Partial evidence	Logan, UT, United StatesHQ checked Sep 19, 2026	1,001-5,000	627 contacts →
	Partial evidence “As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.” Source: RevenueBase Database · checked Sep 19, 2026
23	HOULE	Indirect evidence	Burnaby, BC, CanadaHQ checked Sep 19, 2026	501-1,000	627 contacts →
	Indirect evidence “At Houle, we are passionate about bringing communities to life.” Source: RevenueBase Database · checked Sep 19, 2026
24	M. J. Electric, LLC	Indirect evidence	Iron Mountain, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	621 contacts →
	Indirect evidence “M.” Source: RevenueBase Database · checked Sep 19, 2026
25	Rogers Electric	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	619 contacts →
	Partial evidence “Rogers Electric is the leading national service provider for all of your construction, rollouts, electrical, and lighting needs.” 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: electrical design 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 electrical design consultants.
Partial evidence: Its own public description names part of electrical design consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical design 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 39,116 electrical design consultants worldwide

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Electrical design consultants worldwide at a glance

As of Sep 19, 2026

25.2%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

0.7%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

19,699

11-50

13,507

51-200

4,149

201-500

880

501-1,000

243

1,001-5,000

147

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 design 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.
Coverage: Every country. Country and city lists for electrical design consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “electrical design 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 electrical design 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 electrical design consultants, 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, 94,658 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.

Electrical design consultants by location

121 lists · largest first

Every Electrical design consultants 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 design 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 electrical design consultants are there worldwide?

RevenueBase identified 39,116 electrical design consultants 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?

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

Which country has the most electrical design consultants?

The United States leads with 7,295 companies, followed by the United Kingdom (3,174) and Brazil (2,615). Every electrical design consultants list by country and city is linked on this page.

Which city has the most electrical design consultants?

Sao Paulo leads with 280 headquartered companies, followed by London (246) and Istanbul (180).

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 94,658 verified decision-maker contacts tracked across these 39,116 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.

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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.