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Company lists · Data refreshed September 2026

Top 25 Marketplace SEO agencies based in Seattle, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 53 companies tracked

RevenueBase identified 53 marketplace SEO agencies headquartered in Seattle, United States as of September 2026 and tracks 430 professional contacts across them, including 124 with verified work emails. New York is the largest hub.

This list covers marketplace SEO 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
53Companies
430Contacts tracked
124Verified emails
Explore all 53 companies → Free signup · no credit card · 500 free credits

The 25 largest marketplace SEO agencies based in Seattle, United States

Ranked by team size
Top 25 of 53 marketplace SEO agencies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marketplace SEO agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SeomozPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 202651-200105

“SEOmoz is the world’s most popular provider of SEO software.”

Source: company website · checked Sep 5, 2026
2
LoganixPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5035

“Loganix provides SEO execution for agencies, consultants, and in-house marketing teams.”

Source: company website · checked Sep 5, 2026
3
prerender.ioIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5027

“Your website was built for humans.”

Source: company website · checked Sep 5, 2026
4
ODD DOG MediaIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5023

“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 5, 2026
5
SellersliceIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5021

“Founded by two Amazon marketing experts with a combined 50 years of eCommerce experience, our goal is to provide a holistic Amazon marketing approach at a cost effective rate.”

Source: company website · checked Sep 5, 2026
6
Orca Pacific A Monks CompanyIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 2026201-50020

“We’re a team of former Amazonians and top industry experts who work from within Amazon’s backyard.”

Source: company website · checked Sep 5, 2026
7
Logic InboundIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5016

“Logic Inbound identifies and executes on growth opportunities.”

Source: company website · checked Sep 5, 2026
8
Marketeering GroupPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5016

“Marketeering Group is the digital marketing agency delivering flexible solutions to complex problems with strategic and impact-driven SEO implementation.”

Source: company website · checked Sep 5, 2026
9
Fujisan MarketingIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-1015

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

Source: company website · checked Sep 5, 2026
10
SeoarmyPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-5015

“SEOArmy is a leading provider of scalable SEO services, helping agencies and businesses access expert-level SEO and content-driven growth at competitive rates.”

Source: company website · checked Sep 5, 2026
11
Navazon INCIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-509

“Navazon utilizes extensive expertise in eCommerce to guide and teach businesses with tailored services to successfully market their products on Amazon.com, increasing sales and…”

Source: company website · checked Sep 5, 2026
12
BizangoIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-108

“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 5, 2026
13
Johnfschuster EcommerceIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-106

“Our team helps you grow your revenue and leads using ecommerce marketing and ecommerce development based out of Seattle, WA.”

Source: company website · checked Sep 5, 2026
14
Clarity Online SEOPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-104

“Seattle's SEO Agency”

Source: company website · checked Sep 5, 2026
15
Search To Sale Driving Revenue From SEO & GEOIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-104

“Generative AI has given marketers powerful new capabilities, but it has also injected a lot of noise and uncertainty into content.”

Source: company website · checked Sep 5, 2026
16
Rein Marketing Solutions, LLCIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-103

“For the past 15 years we have helped businesses create their eCommerce brand presence.”

Source: company website · checked Sep 5, 2026
17
Akiha MarketingIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-102

“At Akiha Marketing, we are more than just a digital marketing agency – we are a dynamic team of passionate storytellers, creatives, and brand enthusiasts dedicated to helping your…”

Source: company website · checked Sep 5, 2026
18
OmsparkIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-102

“OmSpark is an AI engineering and consulting practice based in Seattle.”

Source: company website · checked Sep 5, 2026
19
Brandow DigitalIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-502

“Brandow Digital is a trailblazing internet search-optimization firm located in Seattle, Washington.”

Source: company website · checked Sep 5, 2026
20
seo.coPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 202611-502

“SEO.co is an internationally recognized search engine optimization company.”

Source: company website · checked Sep 5, 2026
21
Seattle PPC AgencyIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-102

“Marketing consulting for E-commerce and SaaS companies.”

Source: company website · checked Sep 5, 2026
22
TorseoppcIndirect evidence
Seattle, United StatesHQ checked Sep 5, 20261-102

“TORSEOPPC is a digital marketing agency with deep expertise in Search Engine Optimization, Google Pay Per Click Campaigns and content creation using Artificial Intelligence and…”

Source: company website · checked Sep 5, 2026
23
SEO BandwagonPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-102

“SEO Bandwagon was founded in 2010 to help business owners run their website more effectively and get found by new customers in Google & Bing.”

Source: company website · checked Sep 5, 2026
24
StrategycPartial evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-101

“The average service business spends a month on SEO.”

Source: company website · checked Sep 5, 2026
25
Lars Marketing, LLCIndirect evidence
Seattle, WA, United StatesHQ checked Sep 5, 20261-101

“Lars Marketing provides Paid Search Marketing and Search Engine Optimization services for small and medium size business.”

Source: company website · checked Sep 5, 2026

Showing 25 of 53 marketplace SEO 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 124 reachable decision-makers.

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Marketplace SEO agencies based in Seattle, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 300 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
33
11-50
15
51-200
3
201-500
2

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 53 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 marketplace SEO agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “marketplace SEO agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among marketplace SEO 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 an evidence 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, 124 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 5, 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.

Marketplace SEO agencies by metro in the United States

Frequently asked

How many marketplace SEO agencies are there based in Seattle, United States?

RevenueBase identified 53 marketplace SEO 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?

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

Which city has the most marketplace SEO agencies?

New York leads with 300 headquartered companies, followed by Los Angeles (186) and Houston (148).

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 124 verified decision-maker contacts tracked across these 53 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 53 marketplace SEO agencies based in Seattle, United States. Start with a free account, no credit card.

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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.

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