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Company lists · Data refreshed September 2026

Top 25 Big marketing agencies based in Seattle, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 370 companies tracked

RevenueBase identified 370 big marketing agencies headquartered in Seattle, United States as of September 2026 and tracks 4,305 professional contacts across them, including 812 with verified work emails. New York is the largest hub.

This list covers big marketing agencies 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 23, 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 23, 2026 86% judged on-target in blind review
370Companies
4,305Contacts tracked
812Verified emails
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The 25 largest big marketing agencies based in Seattle, United States

Ranked by team size
Top 25 of 370 big marketing agencies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to big marketing agencies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
POP
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 2026n/a1,159 contacts →

Indirect evidence

“POP is a digital-first creative agency helping forward-thinking brands push boundaries, shape culture, and connect meaningfully with people.”

Source: RevenueBase Database · checked Sep 23, 2026
2
NEW Engen
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 2026201-500302 contacts →

Partial evidence

“New Engen is a digital marketing agency driving impact for brands across every phase of the customer journey – maximizing it, measuring it, and repeating it.”

Source: RevenueBase Database · checked Sep 23, 2026
3
JI Design & Marketing
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 2026n/a167 contacts →

Partial evidence

“JI Design & Marketing is a creative studio specializing in branding, web design, and digital strategy, helping businesses build a cohesive presence and grow with intention.”

Source: RevenueBase Database · checked Sep 23, 2026
4
Crown Social Agency
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5062 contacts →

Indirect evidence

“CROWN is an independent, award-winning, full-service, social-first ad agency based in Seattle, WA.”

Source: RevenueBase Database · checked Sep 23, 2026
5
Media Plus
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5056 contacts →

Indirect evidence

“Media Plus+ is the Pacific Northwest’s largest media planning and buying firm, locally owned and in business since 1983.”

Source: RevenueBase Database · checked Sep 23, 2026
6
Add3
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202651-20050 contacts →

Partial evidence

“Add3 is a digital agency that delivers integrated digital marketing campaigns across paid search, SEO, social & display advertising, helping our clients reach their marketing…”

Source: RevenueBase Database · checked Sep 23, 2026
7
2a Consulting
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202651-20050 contacts →

Partial evidence

“2A is a one-stop-shop marketing agency focused on the tech industry.”

Source: RevenueBase Database · checked Sep 23, 2026
8
Copacino Fujikado
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202651-20050 contacts →

Indirect evidence

“Copacino Fujikado is a Seattle advertising agency founded in 1998.”

Source: RevenueBase Database · checked Sep 23, 2026
9
Greenrubino
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5044 contacts →

Partial evidence

“GreenRubino is a NW-based creative marketing & PR agency.”

Source: RevenueBase Database · checked Sep 23, 2026
10
Freemind Seattle
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5041 contacts →

Partial evidence

“Freemind Seattle is a full-service marketing strategy and creative solutions agency that helps brands connect, inspire, and grow.”

Source: RevenueBase Database · checked Sep 23, 2026
11
PB
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 2026n/a37 contacts →

Indirect evidence

“Founded by a strategist, PB & is fueled by the belief that simplicity is the ultimate sophistication.”

Source: RevenueBase Database · checked Sep 23, 2026
12
MILLI
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5033 contacts →

Indirect evidence

“Milli is an award-winning, purpose-driven, full service creative agency specializing in strategy, narrative change, and content creative.”

Source: RevenueBase Database · checked Sep 23, 2026
13
Tether
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5030 contacts →

Indirect evidence

“Tether is a multidiscipline brand design agency with deep experience in Beauty & Wellness, CPG, Sport and Tech.”

Source: RevenueBase Database · checked Sep 23, 2026
14
STRUM
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5030 contacts →

Partial evidence

“We're a national award-winning brand and strategic marketing agency that has crafted some of the most distinctive, high-functioning brands and data-driven campaigns in the…”

Source: RevenueBase Database · checked Sep 23, 2026
15
The Agency At DCG ONE
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202651-20030 contacts →

Indirect evidence

“Bringing “whole-idea thinking” to every project.”

Source: RevenueBase Database · checked Sep 23, 2026
16
Bonsai Media Group
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5029 contacts →

Indirect evidence

“Bonsai Media Group is a digital advertising agency headquartered in Seattle.”

Source: RevenueBase Database · checked Sep 23, 2026
17
The Vida Agency
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5027 contacts →

Partial evidence

“The Vida Agency (Vida) is a marketing and community engagement firm based in Seattle, WA that helps brands and organizations engage their audiences in ways that resonate.”

Source: RevenueBase Database · checked Sep 23, 2026
18
Hydrogen Advertising
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5025 contacts →

Indirect evidence

“WHAT WE DO: Inspired by the simplest element in the universe, Hydrogen Advertising harnesses the power of simplicity to help local, regional and international advertising clients…”

Source: RevenueBase Database · checked Sep 23, 2026
19
Efelle Creative, Digital Marketing Agency
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5024 contacts →

Partial evidence

“efelle is an internationally recognized ecommerce & digital marketing agency based out of Seattle, Washington, delivering highly functional and engaging websites, applications…”

Source: RevenueBase Database · checked Sep 23, 2026
20
ODD DOG Media
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5023 contacts →

Partial evidence

“We’re a Seattle-founded marketing agency with established teams in Portland and Salt Lake City, dedicated to serving small and mid-sized businesses.”

Source: RevenueBase Database · checked Sep 23, 2026
21
TDW CO
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5022 contacts →

Indirect evidence

“TDW+Co, previously known as T.D.”

Source: RevenueBase Database · checked Sep 23, 2026
22
Goodo Studios
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 20261-1019 contacts →

Indirect evidence

“Helping 7-8 figure brands with hassle-free creative that converts!”

Source: RevenueBase Database · checked Sep 23, 2026
23
Extreme Arts And Sciences
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 202611-5018 contacts →

Partial evidence

“Extreme Arts and Sciences is a digital marketing agency that works with business, marketing and technical leaders to articulate strategies in the form of compelling digital…”

Source: RevenueBase Database · checked Sep 23, 2026
24
Actuate Media
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 23, 20261-1018 contacts →

Indirect evidence

“Actuate Media is a results-driven, industry-leading advertising agency known for 100% transparency, performance-driven strategies, and client success.”

Source: RevenueBase Database · checked Sep 23, 2026
25
Parsons CO
Partial evidenceSeattle, WA, United StatesHQ checked Sep 23, 20261-1018 contacts →

Partial evidence

“From marketing to media relations, strategy to social media, planning to promotions, we bring a unique perspective, uncommon creativity and proven expertise to lifestyle brands.”

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 370 big marketing agencies based in Seattle, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 812 reachable decision-makers.

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Big marketing agencies based in Seattle, United States at a glance

As of Sep 23, 2026
18.9%Verified-email coverage
11.6Average contacts per company
1-10Median size (employees)
767.3%Largest-city concentration · New York
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
277
11-50
76
51-200
13
201-500
4

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 370 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 big marketing agencies, 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 “big marketing agencies”. 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 big marketing agencies), 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 big marketing agencies, 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, 812 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 23, 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.

Big marketing agencies 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 big marketing agencies, 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 big marketing agencies are there based in Seattle, United States?

RevenueBase identified 370 big marketing agencies 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?

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

Which city has the most big marketing agencies?

New York leads with 2839 headquartered companies, followed by Los Angeles (1843) and Miami (1070).

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 812 verified decision-maker contacts tracked across these 370 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 23, 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.

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