Company lists · Data refreshed November 2026

Top 24 Structural design services based in Seattle, United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 146 companies tracked

RevenueBase identified 146 company matches for structural design services associated with Seattle, United States as of November 2026 and tracks 1,147 professional contacts across them, including 620 with verified work emails. Across the United States, New York is the largest hub for this category (678 companies); Seattle has 146.

This list covers company matches for structural design services 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 November 6, 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 Nov 6, 2026 How this list was built

146Companies

1,147Contacts tracked

620Verified emails

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

The 24 largest structural design services based in Seattle, United States

Ranked by team size

Top 24 of 146 company matches for structural design services based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Perteet INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “Perteet is now part of Ardurra, one of the nation’s most dynamic engineering firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Coughlin Porter Lundeen	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	94 contacts →
	Exact match “WHO WE ARE Coughlin Porter Lundeen is a civil and structural engineering firm founded in Seattle with offices in the Pacific and Inland Northwest.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	69 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	TCA Architecture Planning Design	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	29 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 · Nov 6, 2026 · View company records in RevenueBase
5	Malsam Tsang Structural Engineering	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “MALSAM TSANG STRUCTURAL ENGINEERING is a group of engineers and drafters known for our honesty, reliability and steadfast work ethic.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	WJA Design Collaborative	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	25 contacts →
	Exact match “WJA Design Collaborative, established in 1968 as Whiteley Jacobsen Associates, has provided architectural and engineering services to Federal clients and private contractors…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Tiscareno	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	24 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 · Nov 6, 2026 · View company records in RevenueBase
8	Pacland	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	23 contacts →
	Exact match “Founded in 1994, PACLAND is recognized as a leading site development consulting/engineering firm based in Seattle and serving the western US.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Quantum Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	22 contacts →
	Exact match “Quantum Consulting Engineers offers structural engineering services for new and existing buildings, including new construction, tenant improvements, renovation, and historic…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Integrated Design Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match “Integrated Design Engineers (idE) is a Seattle-based structural engineering consulting firm founded in 2005.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Pacific Engineering Technologies, INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Atlas Design Group, Inc. MBE DBE	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	18 contacts →
	Exact match “OUR FIRM Founded in 2019, Atlas Design Group Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	LPD Engineering Pllc	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Improving our communities through economical, functional and sustainable civil design solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Mallet Design Build	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “We believe that the best designers and architects are also builders.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Cast Architecture	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “CAST architecture is a Seattle-based firm with extensive experience designing contemporary spaces throughout the Northwest.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Semaphore Corporation	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	15 contacts →
	Exact match “Our business was founded by a team of engineers interested in developing custom, elegant solutions to meet the business needs of our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Mwworks	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	14 contacts →
	Exact match “mwworks llc is a Seattle based design studio offering architectural and interior design services to residential and commercial clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Jacobson Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “Your trusted partners, delivering innovative solutions and expert civil site development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Hainline	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	13 contacts →
	Exact match “HAINLINE was founded in 1981 to assist owners, architects, and contractors in the construction process.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Shugart Wasse Workshop Architecture And Interiors	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	11 contacts →
	Exact match “Shugart Wasse Workshop is an award winning firm specializing in full service architectural and interior design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	PSM Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	10 contacts →
	Exact match “PSM Engineers is a structural engineering firm with an 85 year history of successful design of new structures, and rehabilitation of existing structures.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Ergosync Engineering	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “Ergosync is a full-service electrical and systems engineering company offering design services, project management, construction support, and commissioning services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Latitude 48 Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	9 contacts →
	Exact match “OUR FIRM We're a Seattle based Civil Engineering Firm focused on superior service accompanied with cutting edge analysis and design capabilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Weaver Architects P.S., INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	1-10	8 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 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 “structural design services”. 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 24 of 146 structural design services based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 620 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Structural design services based in Seattle, United States at a glance

As of Nov 6, 2026

54.1%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

104

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 146 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 “structural design services” 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 620 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 November 6, 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.

Structural design services 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 “structural design services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many structural design services are there based in Seattle, United States?

RevenueBase identified 146 company matches for structural design services associated with Seattle, United States as of November 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?

Perteet INC 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 structural design services?

New York leads the United States with 678 company records, followed by Houston (360) and Los Angeles (297). Seattle has 146.

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 620 professional contacts with verified work emails tracked across these 146 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 146 structural design services based in Seattle, United States. Start with a free account, no credit card.

Download this list →

Related lists

Structural design services 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 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.