Company lists · Data refreshed September 2026

Top 25 Startup marketing agencies based in Seattle, United States

RevenueBase identified 285 startup marketing agencies headquartered in Seattle, United States as of September 2026 and tracks 1,330 professional contacts across them, including 296 with verified work emails. New York is the largest hub.

This list covers startup 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 6, 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 6, 2026 86% judged on-target in blind review
285Companies
1,330Contacts tracked
296Verified emails
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The 25 largest startup marketing agencies based in Seattle, United States

Ranked by team size
Top 25 of 285 startup marketing agencies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to startup 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
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 2026n/a167 contacts →

“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: company website · checked Sep 6, 2026
2Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-20094 contacts →

“Welcome to Salesmrkt, powered by Salesbox.io!”

Source: company website · checked Sep 6, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-20073 contacts →

“A complete and instant marketing team for early-stage B2B SaaS companies.”

Source: company website · checked Sep 6, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5071 contacts →

“A performance marketing agency that grows tech and e-commerce companies.”

Source: company website · checked Sep 6, 2026
5Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202651-20050 contacts →

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

Source: company website · checked Sep 6, 2026
6Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5024 contacts →

“Mother Bear (formerly Kingston Marketing Group) is an independent marketing and communications agency.”

Source: company website · checked Sep 6, 2026
7Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5023 contacts →

“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: company website · checked Sep 6, 2026
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1018 contacts →

“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: company website · checked Sep 6, 2026
9Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5016 contacts →

“Logic Inbound identifies and executes on growth opportunities.”

Source: company website · checked Sep 6, 2026
10Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1015 contacts →

“We help businesses achieve their desired results by creating fully transparent, customized digital marketing strategies and tactics.”

Source: company website · checked Sep 6, 2026
11Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1014 contacts →

“The advertising landscape has forever changed.”

Source: company website · checked Sep 6, 2026
12Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5014 contacts →

“AdOrbix, a pioneering digital marketing agency, specializes in crafting tailored strategies to propel brands to new heights in the digital landscape.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5013 contacts →

“Since 1995, Portent has been delivering business-changing growth for brands in tech, travel, physical retail, e-commerce, publishing, and more.”

Source: company website · checked Sep 6, 2026
14Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-5012 contacts →

“We are a small agency that supports our clients with their sales and marketing activities.”

Source: company website · checked Sep 6, 2026
15Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-1011 contacts →

“Full Speed Advertising is a boutique digital marketing agency based in Seattle, WA.”

Source: company website · checked Sep 6, 2026
16Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-109 contacts →

“Summercamp is a full-service marketing agency, hell-bent on finding a better way to do things.”

Source: company website · checked Sep 6, 2026
17Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-109 contacts →

“Let's face it, most local ad campaigns make people check their watch (or phone), zone-out completely, or- even worse-*face palm* It's time we get serious about local advertising…”

Source: company website · checked Sep 6, 2026
18Strong evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-108 contacts →

“We're a full-service web design and online marketing agency dedicated to serving businesses, bestselling authors, startups and e-commerce.”

Source: company website · checked Sep 6, 2026
19Partial evidenceSeattle, United StatesHQ checked Sep 6, 202611-508 contacts →

“Catalyst is a globally recognized marketing partner built to help growing brands scale smarter.”

Source: company website · checked Sep 6, 2026
20Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 202611-508 contacts →

“Most marketing is easy to ignore.”

Source: company website · checked Sep 6, 2026
21Indirect evidenceSeattle, United StatesHQ checked Sep 6, 20261-107 contacts →

“The more artificial life becomes, the more human your brand needs to be.”

Source: company website · checked Sep 6, 2026
22Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-106 contacts →

“Your brand isn’t just a logo.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-105 contacts →

“Grow your pipeline, faster.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-105 contacts →

“Quesinberry and Associates [aka Q&A] has helped organizations evolve their brand, break into new markets, develop campaigns across multiple channels and visualize their content.”

Source: company website · checked Sep 6, 2026
25Partial evidenceSeattle, WA, United StatesHQ checked Sep 6, 20261-105 contacts →

“SAND POINT ARTS & CULTURAL EXCHANGE is a marketing and advertising company based out of 7400 SANDPOINT WAY NE #2035, SEATTLE, Washington, United States.”

Source: company website · checked Sep 6, 2026

Showing 25 of 285 startup marketing agencies based in Seattle, United States

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

As of Sep 6, 2026
22.3%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
520.7%Largest-city concentration · New York
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
235
11-50
40
51-200
9
201-500
1

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 285 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 startup 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 “startup 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 startup 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 startup 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, 296 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 6, 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.

Startup 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 startup 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 startup marketing agencies are there based in Seattle, United States?

RevenueBase identified 285 startup 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?

JI Design & Marketing, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most startup marketing agencies?

New York leads with 1484 headquartered companies, followed by Los Angeles (1079) and Miami (760).

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 296 verified decision-maker contacts tracked across these 285 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 6, 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.