Company lists · Data refreshed September 2026

Top 25 Eco-friendly construction firms based in the United States

Name: Eco-friendly construction firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 1,920 companies tracked

RevenueBase identified 1,920 eco-friendly construction firms headquartered in the United States as of September 2026 and tracks 17,394 professional contacts across them, including 6,820 with verified work emails. New York is the largest hub.

This list covers eco-friendly construction firms headquartered in the United States, 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.

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

1,920Companies

17,394Contacts tracked

6,820Verified emails

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The 25 largest eco-friendly construction firms based in the United States

Ranked by team size

Top 25 of 1,920 eco-friendly construction firms based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to eco-friendly construction 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	Mckinstry	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,213 contacts →
	Partial 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	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
3	Walsh Construction CO	Indirect evidence	Portland, OR, United StatesHQ checked Sep 16, 2026	201-500	604 contacts →
	Indirect evidence “Made in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 16, 2026
4	O&g Industries, INC	Partial evidence	Torrington, CT, United StatesHQ checked Sep 16, 2026	501-1,000	538 contacts →
	Partial evidence “O&G is Connecticut’s largest privately-held construction company, one of the country’s Top 400 Contractors and a Top 100 Green Building Contractor.” Source: RevenueBase Database · checked Sep 16, 2026
5	Sitelogiq	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 16, 2026	501-1,000	450 contacts →
	Partial 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
6	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
7	Envirocon	Indirect evidence	Missoula, MT, United StatesHQ checked Sep 16, 2026	201-500	225 contacts →
	Indirect evidence “Envirocon safely and reliably delivers projects that protect, remediate, and restore our environment for commercial and government clients nationwide.” Source: RevenueBase Database · checked Sep 16, 2026
8	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
9	The Ruhlin Company	Partial evidence	Sharon Center, OH, United StatesHQ checked Sep 16, 2026	201-500	191 contacts →
	Partial 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
10	Steven Winter Associates	Indirect evidence	Norwalk, CT, United StatesHQ checked Sep 16, 2026	51-200	142 contacts →
	Indirect evidence “For over five decades, we’ve been at the forefront of transforming the built environment to be more energy efficient, accessible, healthy, and resilient.” Source: RevenueBase Database · checked Sep 16, 2026
11	Otto Construction	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 16, 2026	51-200	125 contacts →
	Indirect evidence “We believe in creating an outstanding product at a competitive price.” Source: RevenueBase Database · checked Sep 16, 2026
12	Monadnock Construction, INC	Indirect evidence	Brooklyn, United StatesHQ checked Sep 16, 2026	201-500	124 contacts →
	Indirect evidence “Monadnock was founded in Brooklyn over 50 years ago by Nick Lembo.” Source: RevenueBase Database · checked Sep 16, 2026
13	Hardaway Construction Corp	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 16, 2026	51-200	100 contacts →
	Indirect evidence “Established in 1924 in Nashville, TN, Hardaway has evolved from a small home builder to a large commercial general contracting company.” Source: RevenueBase Database · checked Sep 16, 2026
14	Fortera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 16, 2026	51-200	96 contacts →
	Indirect evidence “Fortera is a pioneering green cement manufacturer with production in Redding, California.” Source: RevenueBase Database · checked Sep 16, 2026
15	Verdani Partners	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 16, 2026	51-200	89 contacts →
	Indirect evidence “Verdani Partners is a full service sustainability consulting firm specialized in corporate sustainability, LEED certification and greening and retrofitting existing buildings.” Source: RevenueBase Database · checked Sep 16, 2026
16	Franjo Construction Corporation	Partial evidence	Homestead, PA, United StatesHQ checked Sep 16, 2026	51-200	88 contacts →
	Partial evidence “Franjo Construction Corporation is a privately held, family-owned construction company headquartered in Homestead, Pennsylvania.” Source: RevenueBase Database · checked Sep 16, 2026
17	Quality Edge	Indirect evidence	Walker, MI, United StatesHQ checked Sep 16, 2026	201-500	87 contacts →
	Indirect evidence “You care about the homes you build and remodel.” Source: RevenueBase Database · checked Sep 16, 2026
18	Magrann Associates	Indirect evidence	Mount Laurel, NJ, United StatesHQ checked Sep 16, 2026	51-200	81 contacts →
	Indirect evidence “MaGrann Associates is an innovative energy efficiency and green building consulting and engineering firm headquartered in Mount Laurel, New Jersey with additional offices in…” Source: RevenueBase Database · checked Sep 16, 2026
19	Smartlam	Partial evidence	Dothan, AL, United StatesHQ checked Sep 16, 2026	201-500	81 contacts →
	Partial evidence “As a complete mass timber construction partner, SmartLam simplifies complex builds by supporting the entire project lifecycle.” Source: RevenueBase Database · checked Sep 16, 2026
20	Cello & Maudru Construction Co., INC	Indirect evidence	Napa, CA, United StatesHQ checked Sep 16, 2026	51-200	80 contacts →
	Indirect evidence “We began when Kris Cello and Bill Maudru teamed up to renovate Napa's Hess Collection Winery in 1987.” Source: RevenueBase Database · checked Sep 16, 2026
21	Dextall	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 16, 2026	51-200	78 contacts →
	Indirect evidence “Our Mission: To accelerate decarbonization of the environment TODAY by bringing affordable and efficient solutions to build sustainably.” Source: RevenueBase Database · checked Sep 16, 2026
22	Bensonwood	Indirect evidence	Walpole, NH, United StatesHQ checked Sep 16, 2026	51-200	76 contacts →
	Indirect evidence “Bensonwood is a design/build firm producing sustainable, energy-efficient residential and commercial buildings with a strong emphasis on offsite fabrication and minimization of…” Source: RevenueBase Database · checked Sep 16, 2026
23	Home Front Build	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	11-50	75 contacts →
	Partial evidence “Home Front is a design/build construction company specializing in green construction and preservation.” Source: RevenueBase Database · checked Sep 16, 2026
24	King King Architects	Indirect evidence	Syracuse, NY, United StatesHQ checked Sep 16, 2026	51-200	70 contacts →
	Indirect evidence “We want to be the best architectural design firm.” Source: RevenueBase Database · checked Sep 16, 2026
25	ADI Construction Of Virginia LLC	Partial evidence	Springfield, VA, United StatesHQ checked Sep 16, 2026	51-200	70 contacts →
	Partial evidence “Founded in 2005, ADI Construction is a full-service provider of commercial general contracting services.” 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: eco-friendly construction 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 eco-friendly construction firms.
Partial evidence: Its own public description names part of eco-friendly construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name eco-friendly construction 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 1,920 eco-friendly construction firms based in the United States

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Eco-friendly construction firms based in the United States at a glance

As of Sep 16, 2026

39.2%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,291

11-50

506

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,920 companies.

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 eco-friendly construction 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “eco-friendly construction 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 eco-friendly construction 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 eco-friendly construction firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 6,820 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.

Eco-friendly construction firms by metro

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 eco-friendly construction 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 eco-friendly construction firms are there based in the United States?

RevenueBase identified 1,920 eco-friendly construction firms headquartered in the United States 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 city has the most eco-friendly construction firms?

New York leads with 51 headquartered companies, followed by Portland (39) and Seattle (37).

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 6,820 verified decision-maker contacts tracked across these 1,920 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.