Company lists · Data refreshed September 2026

Top 25 Ecommerce optimization agencies based in Seattle, United States

Name: Ecommerce optimization 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 19, 2026 65 companies tracked

RevenueBase identified 65 ecommerce optimization agencies headquartered in Seattle, United States as of September 2026 and tracks 449 professional contacts across them, including 175 with verified work emails. New York is the largest hub.

This list covers ecommerce optimization 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 19, 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 19, 2026 86% judged on-target in blind review

65Companies

449Contacts tracked

175Verified emails

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The 25 largest ecommerce optimization agencies based in Seattle, United States

Ranked by team size

Top 25 of 65 ecommerce optimization agencies based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to ecommerce optimization 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	Bamboo	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	71 contacts →
	Indirect evidence “A performance marketing agency that grows tech and e-commerce companies.” Source: RevenueBase Database · checked Sep 19, 2026
2	Emplicit	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	51-200	37 contacts →
	Partial 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 19, 2026
3	BEAR	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect 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 19, 2026
4	Efelle Creative, Digital Marketing Agency	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	24 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 19, 2026
5	Sellerslice	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial 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 19, 2026
6	Orca Pacific A Monks Company	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	201-500	20 contacts →
	Indirect evidence “We’re a team of former Amazonians and top industry experts who work from within Amazon’s backyard.” Source: RevenueBase Database · checked Sep 19, 2026
7	Aeolidia Shopify Partner Agency	Indirect evidence	Seattle, United StatesHQ checked Sep 19, 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 19, 2026
8	Fujisan Marketing	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 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 19, 2026
9	Full Speed Advertising	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “Full Speed Advertising is a boutique digital marketing agency based in Seattle, WA.” Source: RevenueBase Database · checked Sep 19, 2026
10	Moda Works	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “At MODA Works, we bring a wealth of experience and knowledge to help you navigate the complex landscape of Amazon.” Source: RevenueBase Database · checked Sep 19, 2026
11	DAY ONE Digital	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Day One Digital is a group of consultants, brand managers, and developers with over 10 years of Amazon experience.” Source: RevenueBase Database · checked Sep 19, 2026
12	Navazon INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial 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 19, 2026
13	Cxglobals	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Full-service offerings to assess digital capability while providing comprehensive BI and Analytics with Channel focus expertise.” Source: RevenueBase Database · checked Sep 19, 2026
14	Bizango	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect 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 19, 2026
15	Brand Focus Digital	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	8 contacts →
	Partial evidence “A Seattle-based company located in the shadows of Amazon, Brand Focus Digital maximizes your eCommerce (Amazon) sales with our expert team of online marketing and business…” Source: RevenueBase Database · checked Sep 19, 2026
16	Rainmaker Ecommerce	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “Brand People <> Helping Brands We are an end-to-end ecommerce management team originally founded in Seattle.” Source: RevenueBase Database · checked Sep 19, 2026
17	Johnfschuster Ecommerce	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial 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 19, 2026
18	Pac4	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	5 contacts →
	Partial 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 19, 2026
19	Clarity Online SEO	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Seattle's SEO Agency” Source: RevenueBase Database · checked Sep 19, 2026
20	Amzgemz	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “We are a dynamic team comprised of e-commerce enthusiasts and jewelry experts who possess a wealth of knowledge and experience in the realm of Amazon consulting and management.” Source: RevenueBase Database · checked Sep 19, 2026
21	Vantage International	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Our engagements provide an elastic executive service.” Source: RevenueBase Database · checked Sep 19, 2026
22	Rein Marketing Solutions, LLC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “For the past 15 years we have helped businesses create their eCommerce brand presence.” Source: RevenueBase Database · checked Sep 19, 2026
23	Green Light GO	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Green Light Go is a full-service web development and consulting agency.” Source: RevenueBase Database · checked Sep 19, 2026
24	blueco.io	Indirect evidence	Seattle, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “BlueCo is a full-service Amazon agency helping sustainable brands scale their revenues on Amazon.” Source: RevenueBase Database · checked Sep 19, 2026
25	KMB Consulting	Indirect evidence	Seattle, United StatesHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “KMB Consulting is a boutique e-commerce agency helping brands build and grow their presence on Amazon.” Source: RevenueBase Database · checked Sep 19, 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: ecommerce optimization 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 ecommerce optimization agencies.
Partial evidence: Its own public description names part of ecommerce optimization agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecommerce optimization 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 65 ecommerce optimization agencies based in Seattle, United States

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Ecommerce optimization agencies based in Seattle, United States at a glance

As of Sep 19, 2026

39.0%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

520.0%Largest-city concentration · New York

Sep 19, 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 65 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 ecommerce optimization 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 “ecommerce optimization 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 ecommerce optimization 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 ecommerce optimization 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, 175 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 19, 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.

Ecommerce optimization 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 ecommerce optimization 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 ecommerce optimization agencies are there based in Seattle, United States?

RevenueBase identified 65 ecommerce optimization 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?

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

Which city has the most ecommerce optimization agencies?

New York leads with 338 headquartered companies, followed by Los Angeles (209) and Miami (158).

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 175 verified decision-maker contacts tracked across these 65 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 19, 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.