Company lists · Data refreshed September 2026

Top 25 Greenhouse consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 8,736 companies tracked

RevenueBase identified 8,736 greenhouse consulting firms worldwide as of September 2026 and tracks 68,783 professional contacts across them, including 20,800 with verified work emails. The United States is the largest market and London the largest hub.

This list covers greenhouse consulting firms 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 28, 2026. Country and city lists for greenhouse consulting firms 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 28, 2026 86% judged on-target in blind review

8,736Companies

68,783Contacts tracked

20,800Verified emails

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The 25 largest greenhouse consulting firms worldwide

Ranked by team size

Top 25 of 8,736 greenhouse consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to greenhouse consulting firms: 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	DGE Danmark	Indirect evidence	Højbjerg, DenmarkHQ checked Sep 28, 2026	n/a	1,176 contacts →
	Indirect evidence “Miljø er vores kernekompetence og vores ansvar.” Source: RevenueBase Database · checked Sep 28, 2026
2	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 28, 2026
3	BTP Consultants	Indirect evidence	Montigny-le-bretonneux, FranceHQ checked Sep 28, 2026	201-500	1,066 contacts →
	Indirect evidence “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Source: RevenueBase Database · checked Sep 28, 2026
4	RWDI	Partial evidence	Guelph, ON, CanadaHQ checked Sep 28, 2026	501-1,000	737 contacts →
	Partial evidence “We are a leading global climate and performance engineering consulting firm dedicated to creating harmony between the built and natural world.” Source: RevenueBase Database · checked Sep 28, 2026
5	Agritecture	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	n/a	627 contacts →
	Indirect evidence “Agritecture is a global advisory firm specializing in climate-smart agriculture and controlled environment agriculture (CEA).” Source: RevenueBase Database · checked Sep 28, 2026
6	P2s	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 28, 2026	201-500	375 contacts →
	Indirect evidence “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
7	AESG	Indirect evidence	London, United Arab EmiratesHQ checked Sep 28, 2026	201-500	373 contacts →
	Indirect evidence “AESG is an international Consultancy, Engineering and Advisory firm committed to driving sustainability in the built environment and beyond.” Source: RevenueBase Database · checked Sep 28, 2026
8	EMM Consulting PTY Limited	Indirect evidence	St Leonards, AustraliaHQ checked Sep 28, 2026	201-500	361 contacts →
	Indirect evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Source: RevenueBase Database · checked Sep 28, 2026
9	CMF Groupe	Partial evidence	Loireauxence, FranceHQ checked Sep 28, 2026	51-200	336 contacts →
	Partial evidence “CMF, the leading industrial group for the construction of greenhouses and bioclimatic glass buildings in France and across the world, operates in three different market segments …” Source: RevenueBase Database · checked Sep 28, 2026
10	RDH Building Science	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 28, 2026	201-500	335 contacts →
	Partial evidence “RDH is a multidisciplinary consulting firm specializing in building performance, durability, and resilience.” Source: RevenueBase Database · checked Sep 28, 2026
11	Royal Brinkman	Indirect evidence	's-gravenzande, NetherlandsHQ checked Sep 28, 2026	201-500	328 contacts →
	Indirect evidence “Royal Brinkman is a supplier, consultant and installer for the professional horticulture.” Source: RevenueBase Database · checked Sep 28, 2026
12	Atelier TEN	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	323 contacts →
	Indirect evidence “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Source: RevenueBase Database · checked Sep 28, 2026
13	Environmental Consulting & Technology, Inc. ECT	Partial evidence	Gainesville, FL, United StatesHQ checked Sep 28, 2026	201-500	305 contacts →
	Partial evidence “Environmental Consulting & Technology, Inc.(ECT) is a multi-disciplinary environmental and sustainability consulting firm delivering strategy, permitting, design, and management…” Source: RevenueBase Database · checked Sep 28, 2026
14	Cascade Energy	Indirect evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	288 contacts →
	Indirect evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 28, 2026
15	CTE	Partial evidence	São Paulo, BrazilHQ checked Sep 28, 2026	51-200	288 contacts →
	Partial evidence “CTE is a consulting company, which has 28 years of experience in the Construction Industry, offering clients consultancy across a wide range of service nable Projects and Green…” Source: RevenueBase Database · checked Sep 28, 2026
16	Biobest	Partial evidence	Westerlo, BelgiumHQ checked Sep 28, 2026	1,001-5,000	288 contacts →
	Partial evidence “Biobest leads with pioneering solutions in biological control and natural pollination for the horticulture market, focusing on greenhouse vegetables, berries, soft fruits…” Source: RevenueBase Database · checked Sep 28, 2026
17	Ecology And Environment, INC	Indirect evidence	Lancaster, NY, United StatesHQ checked Sep 28, 2026	5,001-10,000	278 contacts →
	Indirect evidence “E&E is now WSP USA.” Source: RevenueBase Database · checked Sep 28, 2026
18	Grupo Partnership	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 28, 2026	1,001-5,000	244 contacts →
	Indirect evidence “Com uma força propulsora de inovação, nos dedicamos a criar e aplicar soluções que elevam o padrão de nossos serviços no mercado.” Source: RevenueBase Database · checked Sep 28, 2026
19	GAP Ssma	Indirect evidence	Goiânia, BrazilHQ checked Sep 28, 2026	201-500	234 contacts →
	Indirect evidence “A GAP Ambiental oferece serviços para pequenas, médias e grandes empresas em diversas áreas que vão desde o licenciamento ao acompanhamento da execução de projetos.” Source: RevenueBase Database · checked Sep 28, 2026
20	PEG	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	201-500	214 contacts →
	Indirect evidence “PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.” Source: RevenueBase Database · checked Sep 28, 2026
21	Delphy	Indirect evidence	Wageningen, NetherlandsHQ checked Sep 28, 2026	201-500	212 contacts →
	Indirect evidence “Delphy: Worldwide Expertise for Food & Flowers.” Source: RevenueBase Database · checked Sep 28, 2026
22	Bright Power	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	205 contacts →
	Indirect evidence “Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Source: RevenueBase Database · checked Sep 28, 2026
23	Saudi Architects Engineering Consulting Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	201-500	203 contacts →
	Indirect evidence “Saudi Architects is a leading and highly ranked world-class firm.” Source: RevenueBase Database · checked Sep 28, 2026
24	Ridder	Partial evidence	Harderwijk, NetherlandsHQ checked Sep 28, 2026	201-500	190 contacts →
	Partial evidence “Ridder has been a pioneer of innovation in greenhouse and farming technologies since 1953.” Source: RevenueBase Database · checked Sep 28, 2026
25	Normandeau Associates, INC	Indirect evidence	Bedford, NH, United StatesHQ checked Sep 28, 2026	201-500	189 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 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: greenhouse consulting firms. 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 greenhouse consulting firms.
Partial evidence: Its own public description names part of greenhouse consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name greenhouse consulting firms. 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 8,736 greenhouse consulting firms worldwide

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Greenhouse consulting firms worldwide at a glance

As of Sep 28, 2026

30.2%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,025

11-50

2,091

51-200

463

201-500

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among greenhouse consulting firms, 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 greenhouse consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “greenhouse consulting firms”. 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 greenhouse consulting firms), 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 greenhouse consulting firms, 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, 20,800 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 28, 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.

Greenhouse consulting firms by location

54 lists · largest first

Every Greenhouse 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 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 greenhouse consulting firms, 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 greenhouse consulting firms are there worldwide?

RevenueBase identified 8,736 greenhouse consulting firms 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?

DGE Danmark, headquartered in Hojbjerg, tops this list with the largest team on record.

Which country has the most greenhouse consulting firms?

The United States leads with 1,381 companies, followed by France (646) and Brazil (612). Every greenhouse consulting firms list by country and city is linked on this page.

Which city has the most greenhouse consulting firms?

London leads with 102 headquartered companies, followed by Paris (92) and Sao Paulo (78).

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 20,800 verified decision-maker contacts tracked across these 8,736 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 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 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.