Company lists · Data refreshed September 2026

Top 25 Green building contractors worldwide

Name: Green building contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 10,931 companies tracked

RevenueBase identified 10,931 green building contractors worldwide as of September 2026 and tracks 80,458 professional contacts across them, including 26,187 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers green building contractors 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 16, 2026. Country and city lists for green building contractors 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 16, 2026 86% judged on-target in blind review

10,931Companies

80,458Contacts tracked

26,187Verified emails

0Mobile numbers

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The 25 largest green building contractors worldwide

Ranked by team size

Top 25 of 10,931 green building contractors worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to green building contractors: 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	Mckinstry	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,213 contacts →
	Indirect evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 16, 2026
2	DLR Group	Partial evidence	30 Offices, MN, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,992 contacts →
	Partial evidence “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Source: RevenueBase Database · checked Sep 16, 2026
3	OLA	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	n/a	1,145 contacts →
	Indirect 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 16, 2026
4	Mapa Group	Indirect evidence	Ankara, TürkiyeHQ checked Sep 16, 2026	10001+	959 contacts →
	Indirect evidence “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Source: RevenueBase Database · checked Sep 16, 2026
5	Bengt Dahlgren	Indirect evidence	Stockholm, SwedenHQ checked Sep 16, 2026	501-1,000	602 contacts →
	Indirect evidence “Vi vill vara en föregångare i bygg- och fastighetsbranschen till effektiva, miljövänliga och motståndskraftiga fastigheter för människor att må bra i.” Source: RevenueBase Database · checked Sep 16, 2026
6	Sitelogiq	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 2026	501-1,000	450 contacts →
	Indirect evidence “SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
7	Estudio Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	n/a	390 contacts →
	Indirect evidence “eStudio is a specialized full service architectural and boutique design firm.” Source: RevenueBase Database · checked Sep 16, 2026
8	P2s	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 16, 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 16, 2026
9	AESG	Indirect evidence	London, United Arab EmiratesHQ checked Sep 16, 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 16, 2026
10	Apoprojekt	Indirect evidence	Hamburg, GermanyHQ checked Sep 16, 2026	501-1,000	371 contacts →
	Indirect evidence “Wir geben bestehenden Gebäuden eine neue Zukunft Vom Mieterausbau über Refurbishment & Revitalisierung bis hin zu maßgeschneiderten ESG-Lösungen realisiert apoprojekt erfolgreich…” Source: RevenueBase Database · checked Sep 16, 2026
11	Newcomb & Boyd, LLP	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	201-500	363 contacts →
	Indirect evidence “We help clients design and operate facilities that remain resilient, reliable, and ready for what's next.” Source: RevenueBase Database · checked Sep 16, 2026
12	Wendel Companies	Indirect evidence	Williamsville, NY, United StatesHQ checked Sep 16, 2026	201-500	355 contacts →
	Indirect evidence “Wendel is an Architecture, Engineering, Energy Efficiency, and Construction Management Firm that delivers customized solutions and turnkey projects in innovative ways.” Source: RevenueBase Database · checked Sep 16, 2026
13	Performance Services	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 16, 2026	201-500	328 contacts →
	Partial evidence “We design and construct high-performing buildings and systems.” Source: RevenueBase Database · checked Sep 16, 2026
14	Atelier TEN	Partial evidence	London, United KingdomHQ checked Sep 16, 2026	51-200	323 contacts →
	Partial 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 16, 2026
15	VLK	Indirect evidence	Fort Worth, TX, United StatesHQ checked Sep 16, 2026	201-500	297 contacts →
	Indirect evidence “VLK designs exemplary environments, innovative structures, and sustainable communities for tomorrow.” Source: RevenueBase Database · checked Sep 16, 2026
16	Kirksey Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	201-500	252 contacts →
	Indirect evidence “We are Kirksey, a Texas-based architecture firm, passionate about great architecture and all things sustainable.” Source: RevenueBase Database · checked Sep 16, 2026
17	Setty & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	220 contacts →
	Indirect evidence “Established in 1984, SETTY is headquartered in Fairfax, VA, with offices in Atlanta, GA, Baltimore, MD, Charlottesville, VA, Fairfax, VA, Los Angeles, CA, New York, NY…” Source: RevenueBase Database · checked Sep 16, 2026
18	Westland Construction, INC	Partial evidence	Orem, UT, United StatesHQ checked Sep 16, 2026	201-500	211 contacts →
	Partial evidence “Westland Construction is a Utah based construction management firm offering a wide range of expertise in Construction Management, General Contracting, Design Build, LEED/Green…” Source: RevenueBase Database · checked Sep 16, 2026
19	MAX Fordham LLP	Indirect evidence	London, United KingdomHQ checked Sep 16, 2026	201-500	208 contacts →
	Indirect evidence “Max Fordham LLP is a partnership of engineers, designers and consultants, working with the built environment, to deliver a sustainable future and a thriving planet.” Source: RevenueBase Database · checked Sep 16, 2026
20	Saudi Architects Engineering Consulting Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 16, 2026	201-500	203 contacts →
	Indirect evidence “Saudi Architects is a leading and highly ranked world-class firm.” Source: RevenueBase Database · checked Sep 16, 2026
21	The Ruhlin Company	Indirect evidence	Sharon Center, OH, United StatesHQ checked Sep 16, 2026	201-500	191 contacts →
	Indirect evidence “The Ruhlin Company is a full-service construction firm offering a diverse range of services, including General Contracting, Construction Management and Design/Build.” Source: RevenueBase Database · checked Sep 16, 2026
22	Lead Consultancy And Engineering Services India PVT LTD	Indirect evidence	Bengaluru, IndiaHQ checked Sep 16, 2026	51-200	174 contacts →
	Indirect evidence “LEAD Consultancy & Engineering Services (India) Private Limited (LCES) has been started by a team of qualified professionals with vast experience and expertise in the areas of…” Source: RevenueBase Database · checked Sep 16, 2026
23	BAM Interbuild BV	Indirect evidence	Berchem, BelgiumHQ checked Sep 16, 2026	201-500	171 contacts →
	Indirect evidence “BAM Interbuild is currently one of the largest construction companies in the Benelux region and is a member of the Royal BAM Group.” Source: RevenueBase Database · checked Sep 16, 2026
24	ZWP Ingenieur-Ag	Indirect evidence	Köln, GermanyHQ checked Sep 16, 2026	201-500	169 contacts →
	Indirect evidence “We have a passion for innovative and sustainable concepts.” Source: RevenueBase Database · checked Sep 16, 2026
25	Killa Design I Architecture	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 16, 2026	51-200	169 contacts →
	Partial evidence “Killa Design is a design firm that is dedicated to creating innovative buildings that are timeless, environmentally sustainable, challenge the norm, contextually inspired by…” Source: RevenueBase Database · checked Sep 16, 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: green building contractors. 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 green building contractors.
Partial evidence: Its own public description names part of green building contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name green building contractors. 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 10,931 green building contractors worldwide

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Green building contractors worldwide at a glance

As of Sep 16, 2026

32.5%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

7,431

11-50

2,741

51-200

539

201-500

501-1,000

1,001-5,000

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 green building contractors, 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: 34 countries, largest first: the United States, India, France, Germany, the United Kingdom, Italy, Spain, the Netherlands, Canada, Australia and 24 more. Country and city lists for green building contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “green building contractors”. 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 green building contractors), 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 green building contractors, 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, 26,187 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 16, 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.

Green building contractors by location

55 lists · largest first

Every Green building contractors 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 green building contractors, 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 green building contractors are there worldwide?

RevenueBase identified 10,931 green building contractors 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?

Mckinstry, headquartered in Seattle, tops this list with the largest team on record.

Which country has the most green building contractors?

The United States leads with 2,482 companies, followed by India (910) and France (895). Every green building contractors list by country and city is linked on this page.

Which city has the most green building contractors?

London leads with 181 headquartered companies, followed by Paris (114) and Bangalore (107).

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 26,187 verified decision-maker contacts tracked across these 10,931 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 16, 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.