Company lists · Data refreshed October 2026

Top 24 Cad design and engineering firms based in Seattle, United States

Name: Cad design and engineering firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 41 companies tracked

RevenueBase identified 41 company matches for cad design and engineering firms associated with Seattle, United States as of October 2026 and tracks 3,494 professional contacts across them, including 2,333 with verified work emails. Across the United States, New York is the largest hub for this category (146 companies); Seattle has 41.

This list covers company matches for cad design and engineering 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 October 9, 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 Oct 9, 2026 How this list was built

41Companies

3,494Contacts tracked

2,333Verified emails

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The 24 largest cad design and engineering firms based in Seattle, United States

Ranked by team size

Top 24 of 41 company matches for cad design and engineering firms based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Kpff Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,588 contacts →
	Exact match “KPFF is a multi-office, multi-discipline engineering firm.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	501-1,000	889 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	DCI Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	201-500	420 contacts →
	Exact match “DCI Engineers has been providing client-focused structural and civil engineering services for over three decades.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	51-200	189 contacts →
	Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Coughlin Porter Lundeen	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	51-200	93 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 · Oct 9, 2026 · View company records in RevenueBase
6	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	67 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Swenson SAY Faget	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	51-200	46 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 · Oct 9, 2026 · View company records in RevenueBase
8	TCA Architecture Planning Design	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
9	WJA Design Collaborative	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	23 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 · Oct 9, 2026 · View company records in RevenueBase
10	Autoscan	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	23 contacts →
	Exact match “With over 14 years of experience Autoscan, Inc offers on-site and off-site services within the Puget Sound area to meet both your immediate and long-term needs.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Quantum Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
12	Pacific Engineering Technologies, INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Latitude 48 Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
14	Bolima Drafting & Design, INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	9 contacts →
	Exact match “Bolima Drafting & Design, Inc, based in Seattle, Washington, was established in 1987 to provide computer-aided drafting (CADD) services to architectural, engineering and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	RHC Engineering	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	8 contacts →
	Exact match “RHC Engineering is specialized in bridge and structural design.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Harriott Valentine Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	11-50	5 contacts →
	Exact match “Harriott Valentine Engineers is a team of professional engineers committed to providing creative solutions to architectural and construction challenges.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Build LLC	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1-10	5 contacts →
	Exact match “BUILD is a multi-disciplinary architectural design firm with a diverse portfolio of work that demonstrates elegance, integrity and simplification of the complex.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	NKH Engineering	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1-10	4 contacts →
	Exact match “NKH Engineering provides structural engineering for residential design and a variety of other small project types, including: New home construction Remodels and additions Site…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Rainier Stormwater Engineering	Exact match	Seattle, United StatesHQ recorded Oct 9, 2026	1-10	4 contacts →
	Exact match “Civil engineering services for residential and commercial clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Aome Architects	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1-10	3 contacts →
	Exact match “High–end custom residential design, both new and remodel.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Tetravela	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1-10	2 contacts →
	Exact match “Tetravela is a turnkey product design studio and engineering services consulting firm.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Elemental Mechanics, LLC	Exact match	Seattle, United StatesHQ recorded Oct 9, 2026	1-10	1 contacts →
	Exact match “Elemental Mechanics (EM) provides development and contract engineering support for aerospace, technology, and oil and gas customers.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	FAC Systems INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 9, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	O.G. Engineering, Pllc	Exact match	Seattle, United StatesHQ recorded Oct 9, 2026	1-10	1 contacts →
	Exact match “We are a small, full-service structural engineering firm providing consulting services to architects, designers, developers, contractors and building owners in the Seattle…” Recorded in the RevenueBase company graph · Oct 9, 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 “cad design and engineering 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 24 of 41 cad design and engineering firms based in Seattle, United States

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Cad design and engineering firms based in Seattle, United States at a glance

As of Oct 9, 2026

66.8%Verified-email coverage

85.2Average contacts per company

1-10Median size (employees)

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

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 41 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 “cad design and engineering 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 2,333 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 October 9, 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.

Cad design and engineering 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 “cad design and engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cad design and engineering firms are there based in Seattle, United States?

RevenueBase identified 41 company matches for cad design and engineering firms associated with Seattle, United States as of October 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?

Kpff Consulting Engineers 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 cad design and engineering firms?

New York leads the United States with 146 company records, followed by Houston (118) and Dallas (66). Seattle has 41.

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 2,333 professional contacts with verified work emails tracked across these 41 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 October 9, 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.