Company lists · Data refreshed November 2026

Top 25 Hydroelectric contractors worldwide

Name: Hydroelectric contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 10,716 companies tracked

RevenueBase identified 10,716 company matches for hydroelectric contractors worldwide as of November 2026 and tracks 203,276 professional contacts across them, including 47,457 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for hydroelectric contractors 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 November 6, 2026. Country and city lists for hydroelectric contractors 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 Nov 6, 2026 How this list was built

10,716Companies

203,276Contacts tracked

47,457Verified emails

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The 25 largest hydroelectric contractors worldwide

Ranked by team size

Top 25 of 10,716 company matches for hydroelectric contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	GS E&c	Exact match	Seoul, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	6,556 contacts →
	Exact match “GS E&C is Korea`s representative global contractor leveraging its experience in Civil Engineering, Building, Oil & Gas, Power Plants and Renewable Energy to continually provide…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Mortenson	Exact match	Minneapolis, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	6,069 contacts →
	Exact match “Mortenson is a U.S-based, top-10 builder, developer and provider of energy and engineering services committed to helping organizations move their strategies forward.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	KENTZ	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	10001+	4,310 contacts →
	Exact match “Following the acquisition of SNC-Lavalin's oil and gas division, Kentz has become a part of Kent.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Megha Engineering & Infrastructures LTD	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	n/a	3,572 contacts →
	Exact match “EPC Contractor in Irrigation, Water, Hydrocarbon and Power sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,710 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 · Nov 6, 2026 · View company records in RevenueBase
6	TIC	Exact match	Englewood, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,609 contacts →
	Exact match “TIC – The Industrial Company provides direct-hire construction services for industrial projects in the power, energy, mining and marine markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Çalık Enerji	Exact match	İstanbul, TürkiyeHQ recorded Nov 6, 2026	10001+	1,804 contacts →
	Exact match “Founded in 1998, Çalık Enerji is a leading international energy company with a strong track record in delivering integrated, turn-key contracting projects across Europe, Central…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,666 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 · Nov 6, 2026 · View company records in RevenueBase
9	Elsewedy Electric Power Systems Projects	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	1,001-5,000	1,529 contacts →
	Exact match “An integrated energy solutions -design and build- provider specialized in Power Generation, Water Treatment and Hydropower while currently diversifying our business segments to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	NPL Construction CO	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,421 contacts →
	Exact match “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Andritz Hydro	Exact match	Vienna, WA, GermanyHQ recorded Nov 6, 2026	5,001-10,000	1,264 contacts →
	Exact match “From the historic pioneers of technology to a modern global market leader ANDRITZ Hydropower is one of the world's leading suppliers of electromechanical equipment and services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Valard Construction	Exact match	Edmonton, AB, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,193 contacts →
	Exact match “Headquartered in Edmonton, Alberta - Valard is Canada’s premier utility contractor, with full-service capabilities for transmission, distribution, substations, foundations…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	MYR Group	Exact match	Thornton, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,137 contacts →
	Exact match “With roots dating to 1891 and employees, MYR Group Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Gülermak Heavy Industries Construction Contracting CO INC	Exact match	Ankara, TürkiyeHQ recorded Nov 6, 2026	5,001-10,000	1,091 contacts →
	Exact match “GÜLERMAK, since its establishment, has been a top leading international EPC contractor known for its excellent reputation and professionalism.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Dashiell Corporation	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,087 contacts →
	Exact match “Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Electrical Consultants, INC	Exact match	Billings, WA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	987 contacts →
	Exact match “Electrical Consultants, Inc.(ECI) is an employee-owned, national provider of high voltage transmission, substation, and distribution solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Wanzek Construction, Inc., A Mastec Company	Exact match	Fargo, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	977 contacts →
	Exact match “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Spml Infra Limited	Exact match	IndiaHQ recorded Nov 6, 2026	1,001-5,000	961 contacts →
	Exact match “SPML Infra Limited (formarly Subhash Projects And Marketing Limited) is a leading infrastructure development company with more than two and half decades of multi-disciplinary…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	CESP	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	201-500	854 contacts →
	Exact match “Criada em 1966, a partir da fusão de 11 empresas, a CESP registra em sua história iniciativas pioneiras na tecnologia construtiva de usinas e na recuperação e preservação do meio…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	752 contacts →
	Exact match “Our story began in 1994 with a simple vision: Build a company that does things right.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Freedom	Exact match	Leeds, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	740 contacts →
	Exact match “Freedom is a leading provider of facilities and power engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	SEL Construction Corporation	Exact match	Loomis, CA, United StatesHQ recorded Nov 6, 2026	n/a	727 contacts →
	Exact match “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Prime Electric	Exact match	Bellevue, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	724 contacts →
	Exact match “For over a quarter century, Prime has been successfully engineering, constructing building, and facilities solutions for our clientele.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	M. J. Electric, LLC	Exact match	Iron Mountain, NH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	685 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Temon Técnica DE Montagens E Construções	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	664 contacts →
	Exact match “Desde 1978 atuando na execução de Instalações Elétricas e Hidráulicas, a Temon conseguiu firmar sua marca nesse mercado com participação em mais de obras por todo Brasil e…” Recorded in the RevenueBase company graph · Nov 6, 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 “hydroelectric contractors”. 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 10,716 hydroelectric contractors worldwide

See the full list, filter by size, metro and specialty, and access 47,457 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydroelectric contractors worldwide at a glance

As of Nov 6, 2026

23.3%Verified-email coverage

19.0Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

4,468

11-50

3,583

51-200

1,652

201-500

471

501-1,000

171

1,001-5,000

125

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 hydroelectric contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “hydroelectric contractors” 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 47,457 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 November 6, 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.

Hydroelectric contractors by location

37 lists · largest first

Every Hydroelectric contractors 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 “hydroelectric contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydroelectric contractors are there worldwide?

RevenueBase identified 10,716 company matches for hydroelectric contractors worldwide as of November 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?

GS E&c tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most hydroelectric contractors?

The United States leads with 4,108 companies, followed by Canada (810) and the United Kingdom (766). Every hydroelectric contractors list by country and city is linked on this page.

Which city has the most hydroelectric contractors?

Houston leads with 60 company records, followed by London (51) and New York (43).

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 47,457 professional contacts with verified work emails tracked across these 10,716 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 November 6, 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.