Company lists · Data refreshed September 2026

Top 25 E-commerce SEO agencies based in Seattle, United States

Name: E-commerce SEO agencies based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 57 companies tracked

RevenueBase identified 57 e-commerce SEO agencies headquartered in Seattle, United States as of September 2026 and tracks 438 professional contacts across them, including 140 with verified work emails. Across the United States, New York is the largest hub for this category (239 companies); Seattle has 57.

This list covers e-commerce 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

57Companies

438Contacts tracked

140Verified emails

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The 25 largest e-commerce SEO agencies based in Seattle, United States

Ranked by team size

Top 25 of 57 e-commerce SEO agencies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to e-commerce SEO 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Seomoz	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	51-200	105 contacts →
	Partial evidence “SEOmoz is the world’s most popular provider of SEO software.” Source: RevenueBase Database · checked Sep 28, 2026
2	Emplicit	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	51-200	37 contacts →
	Indirect evidence “We help ecommerce brands reach their maximum potential by delivering highly-specialized Amazon & other platform expertise tailored to the unique needs of each clients.” Source: RevenueBase Database · checked Sep 28, 2026
3	Loganix	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “Loganix provides SEO execution for agencies, consultants, and in-house marketing teams.” Source: RevenueBase Database · checked Sep 28, 2026
4	BEAR	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “Bear is a full-service digital commerce agency specializing in crafting innovative, future-forward digital solutions that empower brands to scale and grow.” Source: RevenueBase Database · checked Sep 28, 2026
5	Sellerslice	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
6	Aeolidia Shopify Partner Agency	Indirect evidence	Seattle, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “Aeolidia has championed design-forward brands for over 20 years, launching more than 700 thoughtful redesigns to help businesses level up.” Source: RevenueBase Database · checked Sep 28, 2026
7	Fujisan Marketing	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	15 contacts →
	Indirect evidence “We help businesses achieve their desired results by creating fully transparent, customized digital marketing strategies and tactics.” Source: RevenueBase Database · checked Sep 28, 2026
8	Seoarmy	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
9	Navazon INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 28, 2026
10	Bizango	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Strong evidence “We're a full-service web design and online marketing agency dedicated to serving businesses, bestselling authors, startups and e-commerce.” Source: RevenueBase Database · checked Sep 28, 2026
11	Johnfschuster Ecommerce	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence “Our team helps you grow your revenue and leads using ecommerce marketing and ecommerce development based out of Seattle, WA.” Source: RevenueBase Database · checked Sep 28, 2026
12	Pac4	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “eCommerce specialists Pac4 provides the expertise, technical knowledge and services to succeed in the continually changing landscape of online retailing.” Source: RevenueBase Database · checked Sep 28, 2026
13	Clarity Online SEO	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Seattle's SEO Agency” Source: RevenueBase Database · checked Sep 28, 2026
14	Search To Sale Driving Revenue From SEO & GEO	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Generative AI has given marketers powerful new capabilities, but it has also injected a lot of noise and uncertainty into content.” Source: RevenueBase Database · checked Sep 28, 2026
15	Rein Marketing Solutions, LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “For the past 15 years we have helped businesses create their eCommerce brand presence.” Source: RevenueBase Database · checked Sep 28, 2026
16	Omspark	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “OmSpark is an AI engineering and consulting practice based in Seattle.” Source: RevenueBase Database · checked Sep 28, 2026
17	KMB Consulting	Strong evidence	Seattle, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “KMB Consulting is a boutique e-commerce agency helping brands build and grow their presence on Amazon.” Source: RevenueBase Database · checked Sep 28, 2026
18	seo.co	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Partial evidence “SEO.co is an internationally recognized search engine optimization company.” Source: RevenueBase Database · checked Sep 28, 2026
19	Brandow Digital	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “Brandow Digital is a trailblazing internet search-optimization firm located in Seattle, Washington.” Source: RevenueBase Database · checked Sep 28, 2026
20	The Growth Chef Marketing Group	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Marketing & E-Commerce consultancy by Trang Cao, & Hovhannes Mkhitaryan.” Source: RevenueBase Database · checked Sep 28, 2026
21	Seattle PPC Agency	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Marketing consulting for E-commerce and SaaS companies.” Source: RevenueBase Database · checked Sep 28, 2026
22	SEO Bandwagon	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 28, 2026
23	Digishopgirl Media	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	11-50	1 contacts →
	Indirect evidence “DigiShopGirl Media is the leading boutique agency dedicated to providing best practices and expertise in the rapidly evolving Direct-to-Consumer brand industry.” Source: RevenueBase Database · checked Sep 28, 2026
24	Seattle Innovative Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Professional SEO Web Design, Search Engine Optimization, Web Development and Search Engine Marketing from Seattle Innovative Design, a Seattle Website Design studio.” Source: RevenueBase Database · checked Sep 28, 2026
25	S2 Marketing	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Strong evidence “Email marketing, paid ads, and e-commerce expertise.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: e-commerce SEO agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names e-commerce SEO agencies.
Partial evidence: Its own public description names part of e-commerce SEO agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name e-commerce SEO agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 57 e-commerce SEO agencies based in Seattle, United States

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E-commerce SEO agencies based in Seattle, United States at a glance

As of Sep 28, 2026

32.0%Verified-email coverage

7.7Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 57 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 e-commerce SEO 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 “e-commerce SEO 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 e-commerce SEO 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 e-commerce 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 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, 140 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 28, 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.

E-commerce SEO 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 e-commerce SEO 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 e-commerce SEO agencies are there based in Seattle, United States?

RevenueBase identified 57 e-commerce 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 in the United States has the most e-commerce SEO agencies?

New York leads the United States with 239 headquartered companies, followed by Los Angeles (165) and Miami (99). Seattle has 57.

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 140 verified decision-maker contacts tracked across these 57 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 28, 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.