Company lists · Data refreshed September 2026

Top 25 Sustainable commercial interior designers based in Seattle, United States

Name: Sustainable commercial interior designers based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 98 companies tracked

RevenueBase identified 98 sustainable commercial interior designers headquartered in Seattle, United States as of September 2026 and tracks 1,276 professional contacts across them, including 771 with verified work emails. New York is the largest hub.

This list covers sustainable commercial interior designers 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 22, 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 22, 2026 86% judged on-target in blind review

98Companies

1,276Contacts tracked

771Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest sustainable commercial interior designers based in Seattle, United States

Ranked by team size

Top 25 of 98 sustainable commercial interior designers based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable commercial interior designers: 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	Mithun	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	287 contacts →
	Indirect evidence “Mithun is an integrated design firm dedicated to creating positive change in people’s lives.” Source: RevenueBase Database · checked Sep 22, 2026
2	Gglo Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	115 contacts →
	Partial evidence “GGLO is an integrated design firm that provides architecture, urban design, planning, research, interior design, and landscape architecture to clients around the world.” Source: RevenueBase Database · checked Sep 22, 2026
3	Cascadia Consulting Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	110 contacts →
	Partial evidence “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: RevenueBase Database · checked Sep 22, 2026
4	The Miller Hull Partnership, LLP	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	104 contacts →
	Indirect evidence “The Miller Hull Partnership is an architecture and planning firm rooted in environmentally-responsible designs that create a regenerative and inclusive future.” Source: RevenueBase Database · checked Sep 22, 2026
5	Collinswoerman	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	61 contacts →
	Indirect evidence “We believe that great design drives extraordinary value.” Source: RevenueBase Database · checked Sep 22, 2026
6	Porter	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	59 contacts →
	Indirect evidence “Porter creates places where people want to be.” Source: RevenueBase Database · checked Sep 22, 2026
7	Burgess Design, INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	50 contacts →
	Partial evidence “At Burgess Design, our team of designers and architects can help you create a space that makes a statement about who you are as a company while improving efficiencies and…” Source: RevenueBase Database · checked Sep 22, 2026
8	Insidesource Seattle	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	51-200	46 contacts →
	Partial evidence “We are interiors integrators.” Source: RevenueBase Database · checked Sep 22, 2026
9	Graphite Design Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “Graphite Design Group is a Seattle-based design firm recognized for crafting people-focused integrated environments that elegantly solve complex problems.” Source: RevenueBase Database · checked Sep 22, 2026
10	Ecotope, INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	30 contacts →
	Partial evidence “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Source: RevenueBase Database · checked Sep 22, 2026
11	Runberg Architecture Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 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 22, 2026
12	Delta E Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	22 contacts →
	Partial 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 22, 2026
13	Johnson Braund, INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	21 contacts →
	Indirect evidence “Johnson Braund is a full-service architecture firm founded in 1977 that has been designing projects across the nation.” Source: RevenueBase Database · checked Sep 22, 2026
14	Susan Marinello	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	19 contacts →
	Partial evidence “Led by the firm’s namesake, Susan Marinello is a multi-disciplinary interior design practice where in addition to style and sophistication, the signature element is how occupants…” Source: RevenueBase Database · checked Sep 22, 2026
15	Design Well Spent Company	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	18 contacts →
	Indirect evidence “Mission To make the world a better place – one design at a time.” Source: RevenueBase Database · checked Sep 22, 2026
16	Cast Architecture	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “CAST architecture is a Seattle-based firm with extensive experience designing contemporary spaces throughout the Northwest.” Source: RevenueBase Database · checked Sep 22, 2026
17	Curran	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “Since 1990, Curran has sold naturally beautiful rugs & carpets to design professionals, homeowners, and tastemakers around the world.” Source: RevenueBase Database · checked Sep 22, 2026
18	Creoworks	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “It’s our passion to see your creativity at work-that’s why we make the inspiring spaces you envision.” Source: RevenueBase Database · checked Sep 22, 2026
19	Mwworks	Strong evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	13 contacts →
	Strong 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 22, 2026
20	NB Design Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	12 contacts →
	Partial evidence “Responsive to our clients’ vision, NB Design Group is a Seattle based interior design firm committed to design that expresses the interrelationships between architecture and…” Source: RevenueBase Database · checked Sep 22, 2026
21	Shugart Wasse Workshop Architecture And Interiors	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	11-50	11 contacts →
	Partial evidence “Shugart Wasse Workshop is an award winning firm specializing in full service architectural and interior design.” Source: RevenueBase Database · checked Sep 22, 2026
22	Rhodes Architecture Light	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	9 contacts →
	Partial evidence “Rhodes Architecture + Light is a Seattle Architecture firm designing warm and light-filled homes and commercial spaces that enhance the lives of people who use them.” Source: RevenueBase Database · checked Sep 22, 2026
23	Kwanchai	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	6 contacts →
	Indirect evidence “Our Mission: reason made visible calm discovered dynamic beauty rendered bare Together, we’ll create a project concept and forge a transformed space, large or small, that is…” Source: RevenueBase Database · checked Sep 22, 2026
24	Archecology	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial 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 22, 2026
25	Brandt Design Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	1-10	5 contacts →
	Partial evidence “For over 25 years, the Brandt Design Group has provided design services to residential and commercial clients in the Seattle area.” Source: RevenueBase Database · checked Sep 22, 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: sustainable commercial interior designers. 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 sustainable commercial interior designers.
Partial evidence: Its own public description names part of sustainable commercial interior designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable commercial interior designers. 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 98 sustainable commercial interior designers based in Seattle, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 771 reachable decision-makers.

Free signup · no credit card

View the full list →

Sustainable commercial interior designers based in Seattle, United States at a glance

As of Sep 22, 2026

60.4%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

376.5%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 98 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 sustainable commercial interior designers, 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 “sustainable commercial interior designers”. 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 sustainable commercial interior designers), 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 sustainable commercial interior designers, 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, 771 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 22, 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.

Sustainable commercial interior designers 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 sustainable commercial interior designers, 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 sustainable commercial interior designers are there based in Seattle, United States?

RevenueBase identified 98 sustainable commercial interior designers 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?

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

Which city has the most sustainable commercial interior designers?

New York leads with 369 headquartered companies, followed by Los Angeles (201) and Chicago (137).

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 771 verified decision-maker contacts tracked across these 98 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 98 sustainable commercial interior designers based in Seattle, United States. Start with a free account, no credit card.

Download this list →

Related lists

Sustainable commercial interior designers by geography

Browse the directory

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.