Company lists · Data refreshed September 2026

Top 25 Grid connection contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 8,073 companies tracked

RevenueBase identified 8,073 grid connection contractors worldwide as of September 2026 and tracks 208,186 professional contacts across them, including 52,877 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers grid connection contractors 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 16, 2026. Country and city lists for grid connection contractors 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 16, 2026 86% judged on-target in blind review

8,073Companies

208,186Contacts tracked

52,877Verified emails

0Mobile numbers

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

The 25 largest grid connection contractors worldwide

Ranked by team size

Top 25 of 8,073 grid connection contractors worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to grid connection contractors: 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	Tata Power	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	10001+	9,414 contacts →
	Indirect evidence “Tata Power is one of India’s largest integrated power companies and together with its subsidiaries and jointly controlled entities, has an installed/managed capacity of 14,294 MW.” Source: RevenueBase Database · checked Sep 16, 2026
2	Primoris Services Corporation	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	10001+	4,089 contacts →
	Indirect 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 16, 2026
3	Hubbell Incorporated	Indirect evidence	Shelton, CT, United StatesHQ checked Sep 16, 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 16, 2026
4	FTI	Indirect evidence	Menasha, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,741 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 16, 2026
5	Pearce Services	Indirect evidence	Paso Robles, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,620 contacts →
	Indirect evidence “PEARCE from CBRE is the largest national independent provider of outsourced repair, maintenance, and engineering services to critical infrastructure in the renewable energy, power…” Source: RevenueBase Database · checked Sep 16, 2026
6	Invenergy	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,408 contacts →
	Indirect evidence “Invenergy is North America’s largest privately held developer, owner, and operator of innovative, reliable power infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
7	Ausgrid	Indirect evidence	Haymarket, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,341 contacts →
	Indirect evidence “Ausgrid is Australia's largest distributor of electricity, provided products and services to 1.7 million customers in Sydney, the Hunter and the Central Coast.” Source: RevenueBase Database · checked Sep 16, 2026
8	Tabocas Participações Empreendimentos S A	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 2026	10001+	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 16, 2026
9	Areva T&d	Indirect evidence	92084 Paris - La Défense, FranceHQ checked Sep 16, 2026	10001+	2,012 contacts →
	Indirect evidence “One of the top three global players in the transmission and distribution of energy, AREVA T&D offers solutions to bring electricity from the source onto the power network.” Source: RevenueBase Database · checked Sep 16, 2026
10	Omexom	Indirect evidence	Nanterre, FranceHQ checked Sep 16, 2026	5,001-10,000	1,903 contacts →
	Indirect evidence “With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.” Source: RevenueBase Database · checked Sep 16, 2026
11	Engelmig Energia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 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 16, 2026
12	Çalık Enerji	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 16, 2026	10001+	1,542 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
13	SP Energy Networks	Indirect evidence	Glasgow, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,523 contacts →
	Indirect evidence “We transmit, distribute and connect electricity to and from 3.5 million homes and businesses over our network, 24 hours a day, every day of the year.” Source: RevenueBase Database · checked Sep 16, 2026
14	KK Wind Solutions	Indirect evidence	Ikast, DenmarkHQ checked Sep 16, 2026	1,001-5,000	1,423 contacts →
	Indirect evidence “KK Wind Solutions is a dedicated greentech company with more than 35 years of experience in electrical systems for wind turbines.” Source: RevenueBase Database · checked Sep 16, 2026
15	Genusplus Group	Indirect evidence	Belmont, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,234 contacts →
	Indirect evidence “GenusPlus Group (ASX:GNP) is a national force in power and communications infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
16	ZENER	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	5,001-10,000	1,207 contacts →
	Indirect evidence “En Zener crecemos acelerando el crecimiento de nuestros clientes.” Source: RevenueBase Database · checked Sep 16, 2026
17	Valard Construction	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 16, 2026	1,001-5,000	1,112 contacts →
	Partial evidence “Headquartered in Edmonton, Alberta - Valard is Canada’s premier utility contractor, with full-service capabilities for transmission, distribution, substations, foundations…” Source: RevenueBase Database · checked Sep 16, 2026
18	MYR Group	Indirect evidence	Thornton, CO, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,092 contacts →
	Indirect evidence “With roots dating to 1891 and 8,500+ employees, MYR Group Inc.” Source: RevenueBase Database · checked Sep 16, 2026
19	Conecta Empreendimentos Ltda	Indirect evidence	Santo André, BrazilHQ checked Sep 16, 2026	1,001-5,000	1,082 contacts →
	Indirect evidence “A Conecta Empreendimentos, com matriz no estado de São Paulo, se destaca pela atuação na prestação de serviços nos diversos segmentos do setor elétrico e com sua atuação na…” Source: RevenueBase Database · checked Sep 16, 2026
20	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Source: RevenueBase Database · checked Sep 16, 2026
21	Ormazabal	Partial evidence	Derio, SpainHQ checked Sep 16, 2026	1,001-5,000	1,014 contacts →
	Partial evidence “We are experts in customized and high-tech electrical solutions for your challenges At Ormazabal we design and manufacture solutions aimed at digitalizing the electrical grid to…” Source: RevenueBase Database · checked Sep 16, 2026
22	Circet Benelux	Indirect evidence	Kontich, BelgiumHQ checked Sep 16, 2026	1,001-5,000	999 contacts →
	Indirect evidence “We’re building and managing tomorrow’s vital infrastructure Circet Benelux bouwt en beheert de vitale netwerken van morgen: vaste en mobiele telecomnetwerken, slimme…” Source: RevenueBase Database · checked Sep 16, 2026
23	Dashiell Corporation	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	940 contacts →
	Indirect 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 16, 2026
24	Wanzek Construction, Inc., A Mastec Company	Partial evidence	Fargo, ND, United StatesHQ checked Sep 16, 2026	1,001-5,000	933 contacts →
	Partial evidence “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 16, 2026
25	DPL Construções	Indirect evidence	Imperatriz, BrazilHQ checked Sep 16, 2026	1,001-5,000	891 contacts →
	Indirect evidence “Nossa História e Onde Estamos Fundada em 2007, a DPL Construções é especializada na prestação de serviços para Concessionárias de Energia Elétrica, atuando estrategicamente na…” Source: RevenueBase Database · checked Sep 16, 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 connection contractors. 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 connection contractors.
Partial evidence: Its own public description names part of grid connection contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid connection contractors. 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 8,073 grid connection contractors worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 52,877 reachable decision-makers.

Free signup · no credit card

View the full list →

Grid connection contractors worldwide at a glance

As of Sep 16, 2026

25.4%Verified-email coverage

25.8Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Sao Paulo

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

3,183

11-50

3,075

51-200

1,105

201-500

333

501-1,000

123

1,001-5,000

121

5,001-10,000

10001+

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 connection contractors, 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: 33 countries, largest first: the United States, Italy, Brazil, the United Kingdom, Germany, India, Spain, France, Australia, Türkiye and 23 more. Country and city lists for grid connection contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “grid connection contractors”. 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 connection contractors), 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 connection contractors, 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, 52,877 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 16, 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.

Grid connection contractors by location

33 lists · largest first

Every Grid connection contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 connection contractors, 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 connection contractors are there worldwide?

RevenueBase identified 8,073 grid connection contractors 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?

Tata Power, headquartered in Mumbai, tops this list with the largest team on record.

Which country has the most grid connection contractors?

The United States leads with 1,151 companies, followed by Italy (773) and Brazil (754). Every grid connection contractors list by country and city is linked on this page.

Which city has the most grid connection contractors?

Sao Paulo leads with 55 headquartered companies, followed by London (53) and Rome (43).

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 52,877 verified decision-maker contacts tracked across these 8,073 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 8,073 grid connection contractors worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.