Company lists · Data refreshed September 2026

Top 25 Architectural consulting firms based in Seattle, United States

Name: Architectural consulting 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 28, 2026 278 companies tracked

RevenueBase identified 278 company matches for architectural consulting firms associated with Seattle, United States as of September 2026 and tracks 5,181 professional contacts across them, including 3,070 with verified work emails. Across the United States, New York is the largest hub for this category (1,143 companies); Seattle has 278.

This list covers company matches for architectural consulting firms associated with Seattle, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built

278Companies

5,181Contacts tracked

3,070Verified emails

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The 25 largest architectural consulting firms based in Seattle, United States

Ranked by team size

Top 25 of 278 company matches for architectural consulting firms based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Parametrix	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	880 contacts →
	Exact match “At Parametrix, we help our clients imagine what's possible.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Mithun	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	287 contacts →
	Exact match “Mithun is an integrated design firm dedicated to creating positive change in people’s lives.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	178 contacts →
	Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	LMN Architects	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	170 contacts →
	Exact match “About LMN Architects Seattle-based LMN Architects specializes in the planning and design of significant public and private facilities, including convention centers, cultural arts…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Säzän Group INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	151 contacts →
	Exact match “Säzän Group is an engineering and consulting firm with offices in Washington, Oregon, and Arizona.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Gglo Design	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	115 contacts →
	Exact match “GGLO is an integrated design firm that provides architecture, urban design, planning, research, interior design, and landscape architecture to clients around the world.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Hewitt	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	111 contacts →
	Exact match “HEWITT is an integrated practice of architects, landscape architects and urban designers, committed to creating value for clients and community - meaningful places that connect…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Cascadia Consulting Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	110 contacts →
	Exact match “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	The Miller Hull Partnership, LLP	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	104 contacts →
	Exact match “The Miller Hull Partnership is an architecture and planning firm rooted in environmentally-responsible designs that create a regenerative and inclusive future.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	65 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Collinswoerman	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	61 contacts →
	Exact match “We believe that great design drives extraordinary value.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	SMR Architects	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	43 contacts →
	Exact match “SMR Architects is a full-service architecture firm established in Seattle in 1977 as Stickney & Murphy Architects.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Swenson SAY Faget	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	42 contacts →
	Exact match “At Swenson Say Faget, our team of structural engineers is committed to finding the right design solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Board & Vellum	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	37 contacts →
	Exact match “Board & Vellum is a multidisciplinary design firm based on Capitol Hill in Seattle, offering architecture, interior design, and landscape architecture for residential, commercial…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Graphite Design Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	34 contacts →
	Exact match “Graphite Design Group is a Seattle-based design firm recognized for crafting people-focused integrated environments that elegantly solve complex problems.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	HBB Landscape Architecture	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	34 contacts →
	Exact match “HBB is a 20 person professional Landscape Architecture, Urban Design, and Planning firm located in Downtown Seattle.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Ecotope, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	30 contacts →
	Exact match “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Johnston Architects	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	30 contacts →
	Exact match “Johnston Architects was born from a desire to create exceptional architecture through intelligent, conscientious, and sustainable design.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	MIG SVR	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	201-500	29 contacts →
	Exact match “SvR Design Company was founded in 1989 with a mission of providing innovation in the built environment.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Saba BA	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	201-500	28 contacts →
	Exact match “June 1, 2023 - Boulder Associates announces the acquisition of SABA, a Seattle-based architecture and interior design firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	ARC Architects	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	27 contacts →
	Exact match “ARC Architects works closely with its clients to design projects that meet their needs and inspire their organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Weinstein A U	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “At Weinstein AU, we look for ways to make our complex world a more balanced, inspirational, and productive place in which to live, work, and participate in civic life.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Tiscareno	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “Tiscareno is a diverse, mid-size team of architects, designers, project managers, and support staff that designs multifamily, mixed-use, tenant improvement, transportation, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	TCA Architecture Planning Design	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	25 contacts →
	Exact match “TCA represents a 60+ year evolution of experience providing personalized design services for a wide range of challenging and notable projects.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “architectural consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 278 architectural consulting firms based in Seattle, United States

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Architectural consulting firms based in Seattle, United States at a glance

As of Sep 28, 2026

59.3%Verified-email coverage

18.6Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

180

11-50

51-200

201-500

501-1,000

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 278 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Seattle, United States whose business descriptions match “architectural consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,070 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Architectural consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “architectural consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many architectural consulting firms are there based in Seattle, United States?

RevenueBase identified 278 company matches for architectural consulting firms associated with Seattle, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Parametrix tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most architectural consulting firms?

New York leads the United States with 1,143 company records, followed by Los Angeles (410) and Chicago (367). Seattle has 278.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,070 professional contacts with verified work emails tracked across these 278 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 SmartSearch, 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.