Company lists · Data refreshed September 2026

Top 25 Grid integration system designers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 16,787 companies tracked

RevenueBase identified 16,787 grid integration system designers worldwide as of September 2026 and tracks 216,013 professional contacts across them, including 55,449 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers grid integration system designers 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 19, 2026. Country and city lists for grid integration system designers 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 19, 2026 86% judged on-target in blind review

16,787Companies

216,013Contacts tracked

55,449Verified emails

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The 25 largest grid integration system designers worldwide

Ranked by team size

Top 25 of 16,787 grid integration system designers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to grid integration system designers: 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	KENT	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 19, 2026	10001+	7,045 contacts →
	Indirect evidence “We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026
2	Alfanar	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 19, 2026	10001+	6,383 contacts →
	Partial evidence “alfanar builds efficient energy systems & solutions of the present and sets up infrastructures for a brighter future.” Source: RevenueBase Database · checked Sep 19, 2026
3	FTI	Indirect evidence	Menasha, WI, United StatesHQ checked Sep 19, 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 19, 2026
4	Waaree Group	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	5,001-10,000	2,264 contacts →
	Indirect evidence “Founded in 1990, Waaree Energies Limited is India’s leading renewable energy company, driving the global transition to clean power.” Source: RevenueBase Database · checked Sep 19, 2026
5	Omexom	Indirect evidence	Nanterre, FranceHQ checked Sep 19, 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 19, 2026
6	Fluence	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,863 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
7	Westwood Professional Services	Indirect evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,661 contacts →
	Indirect evidence “At Westwood, our purpose is to create a better world for people through our work.” Source: RevenueBase Database · checked Sep 19, 2026
8	KK Wind Solutions	Partial evidence	Ikast, DenmarkHQ checked Sep 19, 2026	1,001-5,000	1,423 contacts →
	Partial 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 19, 2026
9	Solv Energy	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,286 contacts →
	Indirect evidence “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Source: RevenueBase Database · checked Sep 19, 2026
10	Ormazabal	Partial evidence	Derio, SpainHQ checked Sep 19, 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 19, 2026
11	Penspen	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,007 contacts →
	Indirect evidence “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
12	Wanzek Construction, Inc., A Mastec Company	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 19, 2026	1,001-5,000	933 contacts →
	Indirect 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 19, 2026
13	Fraunhofer-Institut FÜR Solare Energiesysteme ISE	Partial evidence	Freiburg, GermanyHQ checked Sep 19, 2026	1,001-5,000	894 contacts →
	Partial evidence “The Fraunhofer Institute for Solar Energy Systems ISE in Freiburg, Germany is the largest solar research institute in Europe.” Source: RevenueBase Database · checked Sep 19, 2026
14	CJR Renewables	Indirect evidence	Matosinhos, PortugalHQ checked Sep 19, 2026	1,001-5,000	816 contacts →
	Indirect evidence “CJR Renewables: EPC/BOP/BOS integrated services provider for wind farms and solar plants.” Source: RevenueBase Database · checked Sep 19, 2026
15	Juwi Group	Indirect evidence	Wörrstadt, GermanyHQ checked Sep 19, 2026	1,001-5,000	785 contacts →
	Indirect evidence “For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Source: RevenueBase Database · checked Sep 19, 2026
16	PAE	Partial evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	201-500	744 contacts →
	Partial evidence “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Source: RevenueBase Database · checked Sep 19, 2026
17	Powersecure, INC	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	501-1,000	740 contacts →
	Indirect evidence “PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Source: RevenueBase Database · checked Sep 19, 2026
18	EWZ	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	721 contacts →
	Indirect evidence “Unsere Erfolgsgeschichte begann mit einer aufsehenerregenden Pioniertat: Im Jahr 1892 floss in der Stadt Zürich erstmals elektrischer Strom.” Source: RevenueBase Database · checked Sep 19, 2026
19	GES	Indirect evidence	Zamudio, SpainHQ checked Sep 19, 2026	501-1,000	702 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
20	ALFEN	Partial evidence	Almere, NetherlandsHQ checked Sep 19, 2026	501-1,000	678 contacts →
	Partial evidence “With transformer substations, energy storage systems, charging stations for electric vehicles and a diverse portfolio of other products and services, Alfen has a central and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Vikran Engineering LTD	Indirect evidence	Thane, IndiaHQ checked Sep 19, 2026	501-1,000	661 contacts →
	Indirect evidence “M/s VIKRAN Engineering Ltd is a reputed and established engineering company specializing in providing comprehensive solutions in the fields of renewable energy, engineering…” Source: RevenueBase Database · checked Sep 19, 2026
22	Electric Power Engineers	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	501-1,000	630 contacts →
	Partial evidence “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: RevenueBase Database · checked Sep 19, 2026
23	Depcom Power, INC	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	624 contacts →
	Indirect evidence “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: RevenueBase Database · checked Sep 19, 2026
24	Juniper Green Energy	Indirect evidence	Gurugram, IndiaHQ checked Sep 19, 2026	501-1,000	583 contacts →
	Indirect evidence “Juniper Green Energy Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
25	Vanderweil Engineers	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	545 contacts →
	Indirect evidence “Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Source: RevenueBase Database · checked Sep 19, 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 integration system designers. 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 integration system designers.
Partial evidence: Its own public description names part of grid integration system designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid integration system designers. 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 16,787 grid integration system designers worldwide

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Grid integration system designers worldwide at a glance

As of Sep 19, 2026

25.7%Verified-email coverage

12.9Average contacts per company

1-10Median size (employees)

0.6%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

8,415

11-50

6,067

51-200

1,610

201-500

380

501-1,000

100

1,001-5,000

114

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 integration system designers, 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: Every country. Country and city lists for grid integration system designers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “grid integration system designers”. 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 integration system designers), 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 integration system designers, 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, 55,449 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 19, 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 integration system designers by location

66 lists · largest first

Every Grid integration system designers 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 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 integration system designers, 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 integration system designers are there worldwide?

RevenueBase identified 16,787 grid integration system designers 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?

KENT, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most grid integration system designers?

The United States leads with 1,424 companies, followed by Brazil (1,388) and India (1,182). Every grid integration system designers list by country and city is linked on this page.

Which city has the most grid integration system designers?

Sao Paulo leads with 109 headquartered companies, followed by London (106) and Madrid (104).

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 55,449 verified decision-maker contacts tracked across these 16,787 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 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 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.