Company lists · Data refreshed September 2026

Top 25 Low emission construction firms based in Seattle, United States

Name: Low emission construction firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 47 companies tracked

RevenueBase identified 47 low emission construction firms headquartered in Seattle, United States as of September 2026 and tracks 2,646 professional contacts across them, including 1,850 with verified work emails. New York is the largest hub.

This list covers low emission construction firms headquartered in Seattle, 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 17, 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 17, 2026 86% judged on-target in blind review

47Companies

2,646Contacts tracked

1,850Verified emails

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The 25 largest low emission construction firms based in Seattle, United States

Ranked by team size

Top 25 of 47 low emission construction firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to low emission 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 17, 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 17, 2026
2	Cascadia Consulting Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	51-200	110 contacts →
	Indirect evidence “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: RevenueBase Database · checked Sep 17, 2026
3	Solterra	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	40 contacts →
	Indirect evidence “Solterra creates some of the most sustainable, livable, and innovative buildings in the Pacific Northwest.” Source: RevenueBase Database · checked Sep 17, 2026
4	Green Canopy Node	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	32 contacts →
	Partial evidence “Green Canopy NODE is a vertically integrated construction technology firm.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sage Homes Northwest	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “Sage Homes Northwest will be known as the most progressive building company in the Pacific Northwest region, employing technology and techniques that will provide maximum…” Source: RevenueBase Database · checked Sep 17, 2026
6	Ecotope, INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	30 contacts →
	Indirect evidence “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Source: RevenueBase Database · checked Sep 17, 2026
7	Runberg Architecture Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	25 contacts →
	Indirect evidence “Since our founding in 1998, Runberg Architecture Group has earned a name for thoughtful design that balances the unique social, economic and environmental interests of each…” Source: RevenueBase Database · checked Sep 17, 2026
8	Better Builders	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect evidence “Better Builders is a premier builder of quality homes, remodels, and commercial tenant improvement projects in Seattle.” Source: RevenueBase Database · checked Sep 17, 2026
9	Delta E Consulting	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “At Delta E, we specialize in a diverse range of consulting services, including Sustainability, Carbon consulting, Energy services, and design expertise in Mechanical, Electrical…” Source: RevenueBase Database · checked Sep 17, 2026
10	Mwworks	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “mwworks llc is a Seattle based design studio offering architectural and interior design services to residential and commercial clients.” Source: RevenueBase Database · checked Sep 17, 2026
11	Heartwood Builders INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence “Heartwood Builders, owned by Scott Engler, is a custom home and commercial builder.” Source: RevenueBase Database · checked Sep 17, 2026
12	Batt Lear	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Batt + Lear is a family-run Seattle business that has been dedicated to designing and building sustainably since We build and remodel structures to be highly energy-efficient…” Source: RevenueBase Database · checked Sep 17, 2026
13	Archecology	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “We help our partners and project teams understand complex sustainability strategies, evaluate the tradeoffs, and achieve their green building certification goals to produce…” Source: RevenueBase Database · checked Sep 17, 2026
14	Multi-M Contracting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Multi-M is a full service commercial and residential construction company serving the Greater Puget Sound region in Washington state.” Source: RevenueBase Database · checked Sep 17, 2026
15	Buddha Builders	Indirect evidence	Seattle, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Our company is comprised of leaders in the industry who will bring your vision to life with the least amount of hassle possible, no matter how big the project.” Source: RevenueBase Database · checked Sep 17, 2026
16	Built Square LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	3 contacts →
	Indirect evidence “Built Square is a residential remodeling company located in Seattle, Washington.” Source: RevenueBase Database · checked Sep 17, 2026
17	Kruger Architecture	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Kruger Architecture provides architecture and design services that respond to clients' unique needs.” Source: RevenueBase Database · checked Sep 17, 2026
18	Paladino, A Buro Happold Company	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	2 contacts →
	Indirect evidence “We are pleased to announce that Paladino and Company is now part of and operating as Buro Happold.” Source: RevenueBase Database · checked Sep 17, 2026
19	Real Project Management Services	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “We are a small office that serves as part of the Owner's team, dedicated to what is best for the project at all times.” Source: RevenueBase Database · checked Sep 17, 2026
20	Builtwell CO	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Founded by Corey Fitch, BuiltWell Co.” Source: RevenueBase Database · checked Sep 17, 2026
21	Avalon Nw, INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	11-50	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
22	South Shore Partners LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “South Shore Partners has delivered projects across the Puget Sound Region with a core focus on high density affordable housing.” Source: RevenueBase Database · checked Sep 17, 2026
23	Northwest Workshop	Partial evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “NORTHWEST WORKSHOP, a construction company based out of Seattle.” Source: RevenueBase Database · checked Sep 17, 2026
24	Dwell Development LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	Rachel Ravitch Studio	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “Rachel Ravitch Studio is a full service design and consulting practice serving the greater Puget Sound region providing residential and commercial design, permitting, and project…” 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: low emission 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 low emission construction firms.
Partial evidence: Its own public description names part of low emission construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name low emission 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 47 low emission construction firms based in Seattle, United States

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Low emission construction firms based in Seattle, United States at a glance

As of Sep 17, 2026

69.9%Verified-email coverage

56.3Average contacts per company

1-10Median size (employees)

266.0%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 47 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 low emission 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 Seattle, United States whose own description of what they do matches “low emission 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 low emission 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 low emission construction firms, and records with no verified work email. Companies headquartered outside Seattle 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, 1,850 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.

Low emission construction firms by metro in the United States

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 low emission 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 low emission construction firms are there based in Seattle, United States?

RevenueBase identified 47 low emission construction firms headquartered in Seattle, 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 low emission construction firms?

New York leads with 125 headquartered companies, followed by Los Angeles (57) and Portland (55).

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 1,850 verified decision-maker contacts tracked across these 47 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.