Company lists · Data refreshed September 2026

Top 25 Healthcare facility design companies based in Seattle, United States

Name: Healthcare facility design companies based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 51 companies tracked

RevenueBase identified 51 healthcare facility design companies headquartered in Seattle, United States as of September 2026 and tracks 1,865 professional contacts across them, including 1,022 with verified work emails. New York is the largest hub.

This list covers healthcare facility design companies 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 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

51Companies

1,865Contacts tracked

1,022Verified emails

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The 25 largest healthcare facility design companies based in Seattle, United States

Ranked by team size

Top 25 of 51 healthcare facility design companies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare facility design companies: 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	Nbbj Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	501-1,000	808 contacts →
	Partial evidence “NBBJ is an ideas-driven architecture and design firm dedicated to creating connected communities, healthier buildings and a more resilient environment.” Source: RevenueBase Database · checked Sep 16, 2026
2	NAC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	201-500	377 contacts →
	Partial evidence “NAC is an award-winning design firm with talented team members working in offices in Seattle and Spokane, WA, Los Angeles and San Diego, CA, and Columbus, OH.” Source: RevenueBase Database · checked Sep 16, 2026
3	LMN Architects	Strong evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	51-200	170 contacts →
	Strong evidence “About LMN Architects Seattle-based LMN Architects specializes in the planning and design of significant public and private facilities, including convention centers, cultural arts…” Source: RevenueBase Database · checked Sep 16, 2026
4	Mahlum	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	51-200	98 contacts →
	Indirect evidence “As a community of practice, Mahlum makes places that promote healing, wellness, learning and more.” Source: RevenueBase Database · checked Sep 16, 2026
5	Collinswoerman	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	51-200	61 contacts →
	Partial evidence “We believe that great design drives extraordinary value.” Source: RevenueBase Database · checked Sep 16, 2026
6	Spees Design Build	Strong evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	36 contacts →
	Strong evidence “Spees Design Build is a Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in healthcare, commercial and institutional design work for the federal government.” Source: RevenueBase Database · checked Sep 16, 2026
7	Graphite Design Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	34 contacts →
	Partial 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 16, 2026
8	Johnston Architects	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial evidence “Johnston Architects was born from a desire to create exceptional architecture through intelligent, conscientious, and sustainable design.” Source: RevenueBase Database · checked Sep 16, 2026
9	Saba BA	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	201-500	28 contacts →
	Partial evidence “June 1, 2023 - Boulder Associates announces the acquisition of SABA, a Seattle-based architecture and interior design firm.” Source: RevenueBase Database · checked Sep 16, 2026
10	TCA Architecture Planning Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “TCA represents a 60+ year evolution of experience providing personalized design services for a wide range of challenging and notable projects.” Source: RevenueBase Database · checked Sep 16, 2026
11	Johnson Braund, INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial 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 16, 2026
12	Atelier Drome	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	16 contacts →
	Partial evidence “We are a 100% woman-owned, full-service, multi-disciplinary design firm that unites exceptional design with down-to-earth approachability, specializing in architecture, interior…” Source: RevenueBase Database · checked Sep 16, 2026
13	Degen & Degen Architecture And Interior Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	15 contacts →
	Partial evidence “Since 1994, Degen & Degen has designed distinctive environments for the hospitality industry across North America.” Source: RevenueBase Database · checked Sep 16, 2026
14	The Design Collective, INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “the design COLLECTIVE was founded on the simple belief that no single person is responsible for the success of a project.” Source: RevenueBase Database · checked Sep 16, 2026
15	Shugart Wasse Workshop Architecture And Interiors	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 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 16, 2026
16	Motionspace Architecture Design Pllc	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Motionspace Architecture + Design PLLC is an Award Winning Seattle Architecture Firm.” Source: RevenueBase Database · checked Sep 16, 2026
17	Weaver Architects P.S., INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “With the knowledge that good design is not an economic question, but a manifestation of our core principles of creativity, innovation and client service, Weaver Architects was…” Source: RevenueBase Database · checked Sep 16, 2026
18	Build LLC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	6 contacts →
	Partial evidence “BUILD is a multi-disciplinary architectural design firm with a diverse portfolio of work that demonstrates elegance, integrity and simplification of the complex.” Source: RevenueBase Database · checked Sep 16, 2026
19	Office Of Ordinary Architecture	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “Office of Ordinary Architecture searches to find the beauty in the everyday and intentionally aims to be a generalist firm, working on a variety of disciplines including…” Source: RevenueBase Database · checked Sep 16, 2026
20	Rutledge Maul Architects	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “Having served the Northwest and Puget Sound area now for over 50 years, our projects are embedded across our local landscape and have made lasting impressions in our communities.” Source: RevenueBase Database · checked Sep 16, 2026
21	Studio19 Architects	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “Provides a full range of architectural, interior design and master planning services.” Source: RevenueBase Database · checked Sep 16, 2026
22	S365 Consulting Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “A Seattle Consultancy and Interior Design Firm Specializing in Senior Living, Community Housing, and Multi-Family Solutions Partnering with communities since 2005, S\|365 brings…” Source: RevenueBase Database · checked Sep 16, 2026
23	Kruger Architecture	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Kruger Architecture provides architecture and design services that respond to clients' unique needs.” Source: RevenueBase Database · checked Sep 16, 2026
24	Richard Hiner Architects, Pllc	Partial evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Richard Hiner Architects endeavors to exceed our Client’s dreams through timeless design and astute project delivery.” Source: RevenueBase Database · checked Sep 16, 2026
25	N5 Architecture LLC	Indirect evidence	Seattle, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Architecture” 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: healthcare facility design companies. 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 healthcare facility design companies.
Partial evidence: Its own public description names part of healthcare facility design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare facility design companies. 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 51 healthcare facility design companies based in Seattle, United States

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Healthcare facility design companies based in Seattle, United States at a glance

As of Sep 16, 2026

54.8%Verified-email coverage

36.6Average contacts per company

1-10Median size (employees)

417.6%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 51 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 healthcare facility design companies, 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 “healthcare facility design companies”. 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 healthcare facility design companies), 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 healthcare facility design companies, 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, 1,022 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.

Healthcare facility design companies 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 healthcare facility design companies, 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 healthcare facility design companies are there based in Seattle, United States?

RevenueBase identified 51 healthcare facility design companies 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?

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

Which city has the most healthcare facility design companies?

New York leads with 213 headquartered companies, followed by Chicago (106) and Houston (95).

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 1,022 verified decision-maker contacts tracked across these 51 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.