Company lists · Data refreshed October 2026

Top 25 Grid integration engineering firms worldwide

Name: Grid integration engineering firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 13, 2026 16,480 companies tracked

RevenueBase identified 16,480 company matches for grid integration engineering firms worldwide as of October 2026 and tracks 289,947 professional contacts across them, including 75,669 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for grid integration engineering firms 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 October 13, 2026. Country and city lists for grid integration engineering firms 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 Oct 13, 2026 How this list was built

16,480Companies

289,947Contacts tracked

75,669Verified emails

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The 25 largest grid integration engineering firms worldwide

Ranked by team size

Top 25 of 16,480 company matches for grid integration engineering firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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	Snc-Lavalin	Exact match	Montreal, QC, CanadaHQ recorded Oct 13, 2026	10001+	9,694 contacts →
	Exact match “SNC Lavalin is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2	Hubbell Incorporated	Exact match	Shelton, CT, United StatesHQ recorded Oct 13, 2026	10001+	4,366 contacts →
	Exact match “Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3	Sargent & Lundy	Exact match	Chicago, United StatesHQ recorded Oct 13, 2026	1,001-5,000	4,341 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
4	Entrust Solutions Group	Exact match	Lisle, IL, United StatesHQ recorded Oct 13, 2026	1,001-5,000	3,020 contacts →
	Exact match “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5	FTI	Exact match	Menasha, WI, United StatesHQ recorded Oct 13, 2026	1,001-5,000	2,979 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
6	S&c Electric Company	Exact match	Chicago, IL, United StatesHQ recorded Oct 13, 2026	1,001-5,000	2,493 contacts →
	Exact match “S&C is empowering people to transform the grid.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
7	Tabocas Participações Empreendimentos S A	Exact match	Belo Horizonte, BrazilHQ recorded Oct 13, 2026	10001+	2,327 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8	Areva T&d	Exact match	92084 Paris - La Défense, FranceHQ recorded Oct 13, 2026	10001+	2,102 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
9	Omexom	Exact match	Nanterre, FranceHQ recorded Oct 13, 2026	5,001-10,000	2,023 contacts →
	Exact match “With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,980 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 · Oct 13, 2026 · View company records in RevenueBase
11	Fluence	Exact match	Arlington, VA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,950 contacts →
	Exact match “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12	Shaker Consultancy Group	Exact match	Cairo, EgyptHQ recorded Oct 13, 2026	1,001-5,000	1,911 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 · Oct 13, 2026 · View company records in RevenueBase
13	Engelmig Energia	Exact match	Belo Horizonte, BrazilHQ recorded Oct 13, 2026	5,001-10,000	1,854 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 · Oct 13, 2026 · View company records in RevenueBase
14	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,801 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,778 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 · Oct 13, 2026 · View company records in RevenueBase
16	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,618 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 · Oct 13, 2026 · View company records in RevenueBase
17	Kirby Group Engineering	Exact match	Limerick, IrelandHQ recorded Oct 13, 2026	1,001-5,000	1,518 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 · Oct 13, 2026 · View company records in RevenueBase
18	Ulteig	Exact match	Fargo, ND, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,460 contacts →
	Exact match “Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19	ISC Constructors, L.L.C	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 13, 2026	1,001-5,000	1,435 contacts →
	Exact match “ISC is an industrial engineering and construction company specializing in comprehensive electrical, instrumentation, and controls solutions.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20	Control Construções Ltda	Exact match	Joao Pessoa, BrazilHQ recorded Oct 13, 2026	1,001-5,000	1,368 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 · Oct 13, 2026 · View company records in RevenueBase
21	Grupo Cosampa	Exact match	Fortaleza, BrazilHQ recorded Oct 13, 2026	1,001-5,000	1,317 contacts →
	Exact match “O Grupo Cosampa vem conquistando espaço no mercado, através da prestação de serviços com qualidade e excelência, nas áreas de construção civil, engenharia elétrica e energias…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22	Ormazabal	Exact match	Derio, SpainHQ recorded Oct 13, 2026	1,001-5,000	1,095 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23	Penspen	Exact match	London, United KingdomHQ recorded Oct 13, 2026	1,001-5,000	1,056 contacts →
	Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24	MSE Engenharia	Exact match	Londrina, BrazilHQ recorded Oct 13, 2026	201-500	897 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25	Mesa Associates, INC	Exact match	Madison, AL, United StatesHQ recorded Oct 13, 2026	1,001-5,000	887 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 · Oct 13, 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 “grid integration engineering firms”. 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 16,480 grid integration engineering firms worldwide

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Grid integration engineering firms worldwide at a glance

As of Oct 13, 2026

26.1%Verified-email coverage

17.6Average contacts per company

11-50Median size (employees)

0.9%Largest-city concentration · Sao Paulo

Oct 13, 2026Page data refreshed

Companies by employee count

1-10

7,913

11-50

5,695

51-200

1,930

201-500

492

501-1,000

150

1,001-5,000

149

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 grid integration engineering firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “grid integration engineering firms” 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 75,669 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 October 13, 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.

Grid integration engineering firms by location

83 lists · largest first

Every Grid integration engineering 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 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 “grid integration engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid integration engineering firms are there worldwide?

RevenueBase identified 16,480 company matches for grid integration engineering firms worldwide as of October 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?

Snc-Lavalin tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most grid integration engineering firms?

The United States leads with 2,060 companies, followed by Brazil (1,575) and Germany (1,078). Every grid integration engineering firms list by country and city is linked on this page.

Which city has the most grid integration engineering firms?

Sao Paulo leads with 156 company records, followed by Istanbul (99) and London (89).

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 75,669 professional contacts with verified work emails tracked across these 16,480 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 October 13, 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.