Company lists · Data refreshed September 2026

Top 25 Grid interconnection consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 8,066 companies tracked

RevenueBase identified 8,066 company matches for grid interconnection consulting firms worldwide as of September 2026 and tracks 103,822 professional contacts across them, including 31,812 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for grid interconnection consulting 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 September 28, 2026. Country and city lists for grid interconnection consulting 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 Sep 28, 2026 How this list was built

8,066Companies

103,822Contacts tracked

31,812Verified emails

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The 25 largest grid interconnection consulting firms worldwide

Ranked by team size

Top 25 of 8,066 company matches for grid interconnection consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Tennet Germany	Exact match	Bayreuth, GermanyHQ recorded Sep 28, 2026	5,001-10,000	2,511 contacts →
	Exact match “TenneT is a leading European grid operator.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Tabocas Participações Empreendimentos S A	Exact match	Belo Horizonte, BrazilHQ recorded Sep 28, 2026	10001+	2,204 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 · Sep 28, 2026 · View company records in RevenueBase
3	Omexom	Exact match	Nanterre, FranceHQ recorded Sep 28, 2026	5,001-10,000	1,903 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 · Sep 28, 2026 · View company records in RevenueBase
4	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Engelmig Energia	Exact match	Belo Horizonte, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,661 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Steag Energy Services India Pvt. LTD	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	1,001-5,000	1,572 contacts →
	Exact match “STEAG Energy Services India, established in 2001 as a wholly owned subsidiary of STEAG GmbH, Germany, is now part of the Bluspring Enterprises Limited, India’s integrated…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Medhaj Techno Concept Pvt. LTD	Exact match	IndiaHQ recorded Sep 28, 2026	1,001-5,000	1,136 contacts →
	Exact match “Medhaj Techno Concept Pvt.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	851 contacts →
	Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	EPCL	Exact match	Brumado, BrazilHQ recorded Sep 28, 2026	1,001-5,000	741 contacts →
	Exact match “Empresa especializada em estudo de viabilidade, levantamento e georreferenciamento topográfico, elaboração de projetos, construção e manutenção de redes de distribuição em média e…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Baker Electric	Exact match	Escondido, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	680 contacts →
	Exact match “Baker Electric is a full-service electrical contractor and energy infrastructure expert headquartered in Escondido, California.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Vikran Engineering LTD	Exact match	Thane, IndiaHQ recorded Sep 28, 2026	501-1,000	661 contacts →
	Exact match “M/s VIKRAN Engineering Ltd is a reputed and established engineering company specializing in providing comprehensive solutions in the fields of renewable energy, engineering…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Electric Power Engineers	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	630 contacts →
	Exact match “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Grupotec	Exact match	Valencia, SpainHQ recorded Sep 28, 2026	501-1,000	538 contacts →
	Exact match “GRUPOTEC - Empresa multidisciplinar de ingeniería y arquitectura y líder en el sector de la energía fotovoltaica.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Revergy	Exact match	Seville, SpainHQ recorded Sep 28, 2026	501-1,000	502 contacts →
	Exact match “REVERGY nace mediante un proyecto de profesionales procedentes de diferentes ámbitos del sector de las energías renovables con el fin de presentar un proyecto marcado por la…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Natural Power	Exact match	Castle Douglas, United KingdomHQ recorded Sep 28, 2026	501-1,000	500 contacts →
	Exact match “Natural Power is a leading independent consultancy and service provider for the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	RRC Companies	Exact match	Round Rock, TX, United StatesHQ recorded Sep 28, 2026	201-500	494 contacts →
	Exact match “RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Borea Construction	Exact match	Lévis, QC, CanadaHQ recorded Sep 28, 2026	201-500	455 contacts →
	Exact match “Borea Construction est le leader nord-américain dans la construction d'énergie renouvelable.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Cotesa Engenharia	Exact match	Florianópolis, BrazilHQ recorded Sep 28, 2026	201-500	449 contacts →
	Exact match “A COTESA é especialista na Engenharia de Operação & Manutenção de ativos elétricos de Geração e Transmissão de energia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Techserv Engineering	Exact match	Tyler, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	448 contacts →
	Exact match “TechServ Consulting and Training, Ltd was established in November 1992.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	E-J Electric Installation CO	Exact match	Long Island City, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	444 contacts →
	Exact match “The E-J Group is active in all facets of electrical contracting, bringing experience, expertise, and a national reputation to projects that range in size up to more than $1…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Finulent Solutions	Exact match	Mumbai, IndiaHQ recorded Sep 28, 2026	501-1,000	442 contacts →
	Exact match “Finulent Solutions is a design engineering firm specializing in the renewable energy sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Energie Data Services Nederland Edsn B.V	Exact match	Amersfoort, NetherlandsHQ recorded Sep 28, 2026	501-1,000	427 contacts →
	Exact match “Energie Data Services Nederland (EDSN) werkt samen met de regionale netbeheerders, TenneT en GTS aan de centrale marktfacilitering voor de energiesector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Fichtner Consulting Engineers LTD	Exact match	Stockport, United KingdomHQ recorded Sep 28, 2026	51-200	418 contacts →
	Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Energyscape Renewables	Exact match	Denver, United StatesHQ recorded Sep 28, 2026	501-1,000	379 contacts →
	Exact match “Established in 2019.” Recorded in the RevenueBase company graph · Sep 28, 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 interconnection consulting 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 8,066 grid interconnection consulting firms worldwide

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Grid interconnection consulting firms worldwide at a glance

As of Sep 28, 2026

30.6%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

0.9%Largest-city concentration · Madrid

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,729

11-50

2,395

51-200

647

201-500

157

501-1,000

1,001-5,000

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 interconnection consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “grid interconnection consulting 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 31,812 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 28, 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 interconnection consulting firms by location

43 lists · largest first

Every Grid interconnection consulting 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 interconnection consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid interconnection consulting firms are there worldwide?

RevenueBase identified 8,066 company matches for grid interconnection consulting firms 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?

Tennet Germany tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most grid interconnection consulting firms?

The United States leads with 1,268 companies, followed by Brazil (688) and India (452). Every grid interconnection consulting firms list by country and city is linked on this page.

Which city has the most grid interconnection consulting firms?

Madrid leads with 76 company records, followed by Sao Paulo (75) and London (63).

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 31,812 professional contacts with verified work emails tracked across these 8,066 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 28, 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.