Company lists · Data refreshed September 2026

Top 25 Electrical system design companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 37,895 companies tracked

RevenueBase identified 37,895 company matches for electrical system design companies worldwide as of September 2026 and tracks 383,808 professional contacts across them, including 104,659 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for electrical system design companies worldwide, 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 September 19, 2026. Country and city lists for electrical system design companies follow the table.

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 Sep 19, 2026 How this list was built

37,895Companies

383,808Contacts tracked

104,659Verified emails

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The 25 largest electrical system design companies worldwide

Ranked by team size

Top 25 of 37,895 company matches for electrical system design companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Sargent & Lundy	Exact match	Chicago, WY, United StatesHQ recorded Sep 19, 2026	1,001-5,000	4,156 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Sep 19, 2026	5,001-10,000	2,567 contacts →
	Exact match “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,865 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 · Sep 19, 2026 · View company records in RevenueBase
4	Shaker Consultancy Group	Exact match	Cairo, EgyptHQ recorded Sep 19, 2026	1,001-5,000	1,833 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Engelmig Energia	Exact match	Belo Horizonte, BrazilHQ recorded Sep 19, 2026	5,001-10,000	1,818 contacts →
	Exact match “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,666 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 · Sep 19, 2026 · View company records in RevenueBase
7	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,560 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 · Sep 19, 2026 · View company records in RevenueBase
8	Kirby Group Engineering	Exact match	Limerick, IrelandHQ recorded Sep 19, 2026	1,001-5,000	1,486 contacts →
	Exact match “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Control Construções Ltda	Exact match	Joao Pessoa, BrazilHQ recorded Sep 19, 2026	1,001-5,000	1,337 contacts →
	Exact match “Fundada em na cidade de João Pessoa, a empresa se tornou especialista nas áreas de construção e prestação de serviços no setor elétrico.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Bergelectric	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,182 contacts →
	Exact match “Since their inception in 1946, Bergelectric has made its mark on the construction industry by providing the highest quality electrical and technology contracting.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Hoare LEA	Exact match	London, United KingdomHQ recorded Sep 19, 2026	501-1,000	1,103 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Henderson Engineers	Exact match	Lenexa, KS, United StatesHQ recorded Sep 19, 2026	501-1,000	1,040 contacts →
	Exact match “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Affiliated Engineers, INC	Exact match	Madison, WI, United StatesHQ recorded Sep 19, 2026	1,001-5,000	1,012 contacts →
	Exact match “Affiliated Engineers, Inc.(AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Industrial Electric Mfg. IEM	Exact match	Fremont, CA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	969 contacts →
	Exact match “Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Mapa Group	Exact match	Ankara, TürkiyeHQ recorded Sep 19, 2026	10001+	959 contacts →
	Exact match “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Mesa Associates, INC	Exact match	Madison, AL, United StatesHQ recorded Sep 19, 2026	1,001-5,000	897 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 · Sep 19, 2026 · View company records in RevenueBase
17	Anel Group	Exact match	İstanbul, TürkiyeHQ recorded Sep 19, 2026	1,001-5,000	867 contacts →
	Exact match “Founded by Rıdvan Çelikel in 1986, Anel is a global contracting company with its expertise in MEP systems in large scale and challenging projects.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Hesco Engineering Services	Exact match	Jeddah, Saudi ArabiaHQ recorded Sep 19, 2026	501-1,000	796 contacts →
	Exact match “Hesco is a design and engineering rm located in the Kingdom of Saudi Arabia with oces in Jeddah, Riyadh, Makkah, Syria, Turkey, Egypt, Spain and Lebanon.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Flanders	Exact match	Evansville, IN, United StatesHQ recorded Sep 19, 2026	501-1,000	789 contacts →
	Exact match “FLANDERS, Leverage our legacy.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Sep 19, 2026	n/a	782 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	BK Gulf LLC	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 19, 2026	5,001-10,000	774 contacts →
	Exact match “Established in 1978, BK Gulf LLC is a leading contractor in electrical, mechanical, instrumentation and building services within the UAE & Middle East market.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	PAE	Exact match	Portland, OR, United StatesHQ recorded Sep 19, 2026	201-500	744 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 · Sep 19, 2026 · View company records in RevenueBase
23	SASCO	Exact match	Fullerton, CA, United StatesHQ recorded Sep 19, 2026	501-1,000	734 contacts →
	Exact match “SASCO has been a leader in electrical construction and low-voltage systems technologies for 50 years.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	ME Engineers	Exact match	Golden, CO, United StatesHQ recorded Sep 19, 2026	201-500	696 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	SHBC	Exact match	KuwaitHQ recorded Sep 19, 2026	5,001-10,000	695 contacts →
	Exact match “Construction companyCompany Overview SHBC is one of the leading construction companies in Kuwait.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electrical system design companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 37,895 electrical system design companies worldwide

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Electrical system design companies worldwide at a glance

As of Sep 19, 2026

27.3%Verified-email coverage

10.1Average contacts per company

11-50Median size (employees)

0.8%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

18,624

11-50

13,322

51-200

4,171

201-500

845

501-1,000

267

1,001-5,000

156

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for electrical system design companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “electrical system design companies” 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. 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 104,659 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 September 19, 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.

Electrical system design companies by location

111 lists · largest first

Every Electrical system design companies 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 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 “electrical system design companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical system design companies are there worldwide?

RevenueBase identified 37,895 company matches for electrical system design companies worldwide as of September 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?

Sargent & Lundy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most electrical system design companies?

The United States leads with 6,348 companies, followed by the United Kingdom (2,948) and Brazil (2,500). Every electrical system design companies list by country and city is linked on this page.

Which city has the most electrical system design companies?

Sao Paulo leads with 306 company records, followed by London (233) and Istanbul (189).

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 104,659 professional contacts with verified work emails tracked across these 37,895 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 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 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.