Company lists · Data refreshed September 2026

Top 25 Renewable energy integration consultants worldwide

Name: Renewable energy integration consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 22,643 companies tracked

RevenueBase identified 22,643 renewable energy integration consultants worldwide as of September 2026 and tracks 419,337 professional contacts across them, including 136,616 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers renewable energy integration consultants 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 17, 2026. Country and city lists for renewable energy integration consultants 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 17, 2026 86% judged on-target in blind review

22,643Companies

419,337Contacts tracked

136,616Verified emails

0Mobile numbers

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The 25 largest renewable energy integration consultants worldwide

Ranked by team size

Top 25 of 22,643 renewable energy integration consultants worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy integration consultants: 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	Siemens Energy	Partial evidence	Munich, GermanyHQ checked Sep 17, 2026	10001+	46,587 contacts →
	Partial evidence “Siemens Energy is one of the world’s leading energy technology companies.” Source: RevenueBase Database · checked Sep 17, 2026
2	Worley	Partial evidence	Sydney, AustraliaHQ checked Sep 17, 2026	10001+	34,763 contacts →
	Partial evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 17, 2026
3	Technipfmc	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 17, 2026	10001+	19,907 contacts →
	Partial evidence “TechnipFMC is a leading technology provider to the traditional and new energies industry, delivering fully integrated projects, products, and services.” Source: RevenueBase Database · checked Sep 17, 2026
4	Dalkia	Indirect evidence	Saint-andré-lez-lille, FranceHQ checked Sep 17, 2026	10001+	8,427 contacts →
	Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 17, 2026
5	Alfanar	Partial evidence	Riyadh, Saudi ArabiaHQ checked Sep 17, 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 17, 2026
6	Octopus Energy	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	3,989 contacts →
	Partial evidence “We're on a mission to make a big green dent in the universe by building a truly sustainable energy system globally.” Source: RevenueBase Database · checked Sep 17, 2026
7	FTI	Strong evidence	Menasha, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,741 contacts →
	Strong evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 17, 2026
8	Tata Power Renewable Energy Limited	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	501-1,000	2,660 contacts →
	Strong evidence “Tata Power Renewable Energy Limited (TPREL) is one of India’s leading renewable energy companies, driving the transition towards a cleaner, more resilient and sustainable energy…” Source: RevenueBase Database · checked Sep 17, 2026
9	Ingeteam	Indirect evidence	Zamudio, SpainHQ checked Sep 17, 2026	1,001-5,000	2,574 contacts →
	Indirect evidence “Ingeteam is made up of a team of more than 3,500 people in 15 countries, with more than 80 years of experience providing creative solutions to specific problems to electrify…” Source: RevenueBase Database · checked Sep 17, 2026
10	Waaree Group	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	5,001-10,000	2,264 contacts →
	Strong 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 17, 2026
11	Axpo Group	Partial evidence	Baden, ItalyHQ checked Sep 17, 2026	5,001-10,000	2,156 contacts →
	Partial evidence “Axpo is driven by a single purpose – to enable a sustainable future through innovative energy solutions.” Source: RevenueBase Database · checked Sep 17, 2026
12	Omexom	Partial evidence	Nanterre, FranceHQ checked Sep 17, 2026	5,001-10,000	1,903 contacts →
	Partial 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 17, 2026
13	Fluence	Partial evidence	Arlington, VA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,863 contacts →
	Partial 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 17, 2026
14	Westwood Professional Services	Indirect evidence	Plano, TX, United StatesHQ checked Sep 17, 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 17, 2026
15	Steag Energy Services India Pvt. LTD	Partial evidence	Noida, IndiaHQ checked Sep 17, 2026	1,001-5,000	1,572 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
16	Voltalia	Strong evidence	Paris, FranceHQ checked Sep 17, 2026	1,001-5,000	1,436 contacts →
	Strong evidence “Voltalia is an international player in renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
17	KK Wind Solutions	Indirect evidence	Ikast, DenmarkHQ checked Sep 17, 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 17, 2026
18	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,383 contacts →
	Partial evidence “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Source: RevenueBase Database · checked Sep 17, 2026
19	Solv Energy	Strong evidence	San Diego, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,286 contacts →
	Strong 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 17, 2026
20	Conecta Empreendimentos Ltda	Indirect evidence	Santo André, BrazilHQ checked Sep 17, 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 17, 2026
21	Aurora Energy Research	Partial evidence	Oxford, United KingdomHQ checked Sep 17, 2026	501-1,000	1,034 contacts →
	Partial evidence “Established in 2013, Aurora Energy Research is a leading global provider of power market forecasting and analytics for critical investment and financing decisions.” Source: RevenueBase Database · checked Sep 17, 2026
22	Penspen	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,007 contacts →
	Partial evidence “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
23	Inox Wind LTD	Partial evidence	Noida, IndiaHQ checked Sep 17, 2026	1,001-5,000	952 contacts →
	Partial evidence “Inox Wind is India’s leading wind energy solutions provider, offering comprehensive services from concept to commissioning and Operations & Maintenance (O&M).” Source: RevenueBase Database · checked Sep 17, 2026
24	Wärtsilä Energy	Strong evidence	Helsinki, FinlandHQ checked Sep 17, 2026	10001+	940 contacts →
	Strong evidence “Wärtsilä leads the transition towards a 100% renewable energy future.” Source: RevenueBase Database · checked Sep 17, 2026
25	Wanzek Construction, Inc., A Mastec Company	Strong evidence	Fargo, ND, United StatesHQ checked Sep 17, 2026	1,001-5,000	933 contacts →
	Strong 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 17, 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: renewable energy integration consultants. 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 renewable energy integration consultants.
Partial evidence: Its own public description names part of renewable energy integration consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy integration consultants. 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 22,643 renewable energy integration consultants worldwide

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Renewable energy integration consultants worldwide at a glance

As of Sep 17, 2026

32.6%Verified-email coverage

18.5Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

12,124

11-50

7,667

51-200

2,007

201-500

449

501-1,000

117

1,001-5,000

135

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 renewable energy integration consultants, 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: 54 countries, largest first: the United States, Brazil, India, Germany, the United Kingdom, Spain, Italy, France, Australia, the Netherlands and 44 more. Country and city lists for renewable energy integration consultants are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “renewable energy integration consultants”. 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 renewable energy integration consultants), 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 renewable energy integration consultants, 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, 136,616 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 17, 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.

Renewable energy integration consultants by location

112 lists · largest first

Every Renewable energy integration consultants 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 renewable energy integration consultants, 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 renewable energy integration consultants are there worldwide?

RevenueBase identified 22,643 renewable energy integration consultants 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?

Siemens Energy, headquartered in Munich, tops this list with the largest team on record.

Which country has the most renewable energy integration consultants?

The United States leads with 3,028 companies, followed by Brazil (1,951) and India (1,831). Every renewable energy integration consultants list by country and city is linked on this page.

Which city has the most renewable energy integration consultants?

London leads with 296 headquartered companies, followed by Madrid (268) and Sao Paulo (191).

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 136,616 verified decision-maker contacts tracked across these 22,643 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 17, 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.