Company lists · Data refreshed September 2026
Top 25 Outsourced martech companies based in Seattle, United States
RevenueBase identified 72 outsourced martech companies headquartered in Seattle, United States as of September 2026 and tracks 755 professional contacts across them, including 195 with verified work emails. New York is the largest hub.
This list covers outsourced martech companies 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 21, 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.
The 25 largest outsourced martech companies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 181 contacts → | ||||
Indirect evidence “We believe every business deserves great marketing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 94 contacts → | ||||
Indirect evidence “Welcome to Salesmrkt, powered by Salesbox.io!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 93 contacts → | ||||
Indirect evidence “Hey there!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 73 contacts → | ||||
Indirect evidence “A complete and instant marketing team for early-stage B2B SaaS companies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 50 contacts → | ||||
Indirect evidence “2A is a one-stop-shop marketing agency focused on the tech industry.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 contacts → | ||||
Indirect evidence “LIFT provides marketing and technology services that help B2B companies improve results through digital demand generation, marketing automation, CRM and analytics.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Indirect evidence “With the hosted Ethofy Inspired Marketing suite, marketers have a way to recapture their time and repurpose their budget dollars.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 17 contacts → | ||||
Indirect evidence “We’re the premier enterprise technology marketing firm that helps decision-makers understand your tech’s value, leading to faster outcomes for them-and improved sales results for…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 contacts → | ||||
Indirect evidence “Etumos is a marketing technology consultancy focused on innovating B2B & B2C marketing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Indirect evidence “Since 1995, Portent has been delivering business-changing growth for brands in tech, travel, physical retail, e-commerce, publishing, and more.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 contacts → | ||||
Indirect evidence “Knack Collective is a strategic B2B marketing agency helping technology companies turn complexity into scalable growth.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “Founded in 2008, Solomon Solution is headquartered in Seattle, Washington.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Indirect evidence “At Audienz, we blend the best of business consulting and creative marketing to help you break through in the age of diminishing attention spans.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “NW Media Partners is a boutique digital marketing company specializing in managed service programmatic advertising for agencies & brands of all sizes.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “InnerActivate helps enterprise brands get more done with what they already have by increasing utilization and effectiveness of existing marketing technologies, mining actionable…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “A MARKETING SOLUTION-MAKER GCDirect is a marketing solution-maker that is media-neutral.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “Business Launch & Scale Consulting: Marketing Strategy, Branding, Lead Generation, Content Curation, Marketing Tech Support, Website Setup, Email Marketing, Marketing Automation…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “Ride Marketing Group is a Seattle-based digital marketing agency that helps local service businesses across the USA grow through proven online strategies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “XPath Media is a performance-driven digital marketing agency, specializing in full-funnel customer acquisition, conversion, and retention.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Sphere Strategy is a leading marketing agency that specializes in delivering cutting-edge, data-driven digital solutions for businesses in highly regulated industries.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Indirect evidence “Marketing consulting for E-commerce and SaaS companies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Xeddi is a Seattle based software company that is dedicated to the creation, promotion and elevation of sales software solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Traction Hero is the tech-savvy marketing agency that solves high growth companies’ most pressing marketing challenges.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Down Low Marketing builds quality and sustainable marketing programs at small-to-medium sized companies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: outsourced martech companies. 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 outsourced martech companies.
- Partial evidence
- Its own public description names part of outsourced martech companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name outsourced martech companies. 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 72 outsourced martech companies based in Seattle, United States
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Outsourced martech companies based in Seattle, United States at a glance
As of Sep 21, 2026Companies by employee count
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 72 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 outsourced martech companies, 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 “outsourced martech companies”. 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 outsourced martech companies), 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 outsourced martech companies, 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, 195 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 21, 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.
Outsourced martech companies by metro in the United States
- Outsourced martech companies in New York338
- Outsourced martech companies in Los Angeles165
- Outsourced martech companies in Miami158
- Outsourced martech companies in Chicago142
- Outsourced martech companies in Austin138
- Outsourced martech companies in Atlanta133
- Outsourced martech companies in San Francisco132
- Outsourced martech companies in Dallas119
- Outsourced martech companies in Denver107
- Outsourced martech companies in Houston106
- Outsourced martech companies in Las Vegas98
- Outsourced martech companies in San Diego92
- Outsourced martech companies in Orlando86
- Outsourced martech companies in Seattle72
- Outsourced martech companies in Sheridan72
- Outsourced martech companies in Boston70
- Outsourced martech companies in Tampa69
- Outsourced martech companies in Charlotte68
- Outsourced martech companies in Phoenix66
- Outsourced martech companies in Portland58
- Outsourced martech companies in San Jose58
- Outsourced martech companies in Minneapolis55
- Outsourced martech companies in Wilmington47
- Outsourced martech companies in Irvine40
- Outsourced martech companies in Philadelphia40
- Outsourced martech companies in Raleigh40
- Outsourced martech companies in Scottsdale39
- Outsourced martech companies in Jacksonville38
- Outsourced martech companies in Salt Lake City38
- Outsourced martech companies in Nashville31
- Outsourced martech companies in Washington30
- Outsourced martech companies in San Antonio29
- Outsourced martech companies in Boulder28
- Outsourced martech companies in Louisville28
- Outsourced martech companies in Cincinnati27
- Outsourced martech companies in Fort Lauderdale27
- Outsourced martech companies in Indianapolis27
- Outsourced martech companies in Columbus26
- Outsourced martech companies in Cleveland25
- Outsourced martech companies in New York City25
- Outsourced martech companies in St. Louis25
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 outsourced martech companies, 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 outsourced martech companies are there based in Seattle, United States?
RevenueBase identified 72 outsourced martech companies 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?
Outboundengine, headquartered in Seattle, tops this list with the largest team on record.
Which city has the most outsourced martech companies?
New York leads with 338 headquartered companies, followed by Los Angeles (165) 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 195 verified decision-maker contacts tracked across these 72 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 21, 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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