Company lists · Data refreshed September 2026
Top 25 B2B lead generation and marketing agencies based in Seattle, United States
RevenueBase identified 52 B2B lead generation and marketing agencies headquartered in Seattle, United States as of September 2026 and tracks 431 professional contacts across them, including 116 with verified work emails. New York is the largest hub.
This list covers B2B lead generation and 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 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 B2B lead generation and marketing agencies based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 94 contacts → | ||||
Indirect evidence “Welcome to Salesmrkt, powered by Salesbox.io!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 44 contacts → | ||||
Strong evidence “Motionvillee, being a B2B Video First Marketing agency, excels in simplifying your complex services and delivering your message effectively to potential customers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 35 contacts → | ||||
Partial evidence “Unreal Digital Group is the full-service, women-owned marketing agency that helps companies look, feel and sound different.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 35 contacts → | ||||
Strong 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. | |||||
| 5 | 23 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 22 contacts → | ||||
Indirect evidence “Altus Alliance is a revenue growth services firm focused on sales targeting and execution.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Strong evidence “Formed in Seattle in 1993, Direct Resources Group is a direct marketing agency focusing on lead generation, customer acquisition, cross-sell marketing, membership, and fundraising.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 15 contacts → | ||||
Partial evidence “We help businesses achieve their desired results by creating fully transparent, customized digital marketing strategies and tactics.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 15 contacts → | ||||
Indirect evidence “You can get clients in 1 of 2 ways: 1) Inbound 2) Outbound I recommend doing both, but for immediate results, just do outbound.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 11 contacts → | ||||
Strong 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. | |||||
| 11 | 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. | |||||
| 12 | 6 contacts → | ||||
Strong evidence “BlackWing Creative is a B2B marketing agency located in Seattle and San Francisco.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Strong evidence “LeadScorz integrates the entire supply chain for your lead generation program, including acquisition, routing, analytics reporting, and process management and optimization.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 contacts → | ||||
Partial 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 | 5 contacts → | ||||
Indirect evidence “Grow your pipeline, faster.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Strong evidence “Gigantic builds high converting marketing websites for growing B2B companies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “Understand marketing in a way that doesn't suck the joy out of running your business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Indirect evidence “KickoffLabs is audience growth made easy Giveaways, Landing Pages, Popups, and embedded forms!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Partial evidence “Growth Response is done-for-you outbound prospecting service for B2B SaaS and digital agencies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Strong 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. | |||||
| 21 | 1 contacts → | ||||
Strong evidence “High quality targeted B2B and B2C business leads to for sales & development managers, marketing managers and more.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “Brawas Digital – Growth Marketing for Ambitious Brands Brawas Digital is a results-driven digital marketing agency helping businesses grow through strategic advertising and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial 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. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “We help you grow your real estate business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Dupuy & co.” 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: B2B lead generation and marketing 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 B2B lead generation and marketing agencies.
- Partial evidence
- Its own public description names part of B2B lead generation and marketing agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name B2B lead generation and marketing 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 52 B2B lead generation and marketing 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 116 reachable decision-makers.
Free signup · no credit card
B2B lead generation and marketing agencies 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 52 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 B2B lead generation and 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 “B2B lead generation and 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 B2B lead generation and 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 B2B lead generation and 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, 116 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.
B2B lead generation and marketing agencies by metro in the United States
- B2B lead generation and marketing agencies in New York345
- B2B lead generation and marketing agencies in Miami189
- B2B lead generation and marketing agencies in Los Angeles186
- B2B lead generation and marketing agencies in San Francisco178
- B2B lead generation and marketing agencies in Austin173
- B2B lead generation and marketing agencies in Chicago145
- B2B lead generation and marketing agencies in Houston136
- B2B lead generation and marketing agencies in Sheridan126
- B2B lead generation and marketing agencies in San Diego125
- B2B lead generation and marketing agencies in Atlanta118
- B2B lead generation and marketing agencies in Dallas118
- B2B lead generation and marketing agencies in Denver111
- B2B lead generation and marketing agencies in Boston84
- B2B lead generation and marketing agencies in Las Vegas82
- B2B lead generation and marketing agencies in Tampa78
- B2B lead generation and marketing agencies in Orlando77
- B2B lead generation and marketing agencies in Phoenix77
- B2B lead generation and marketing agencies in Wilmington66
- B2B lead generation and marketing agencies in Philadelphia61
- B2B lead generation and marketing agencies in Charlotte57
- B2B lead generation and marketing agencies in Scottsdale54
- B2B lead generation and marketing agencies in Seattle52
- B2B lead generation and marketing agencies in Boca Raton49
- B2B lead generation and marketing agencies in San Jose48
- B2B lead generation and marketing agencies in Portland47
- B2B lead generation and marketing agencies in Fort Lauderdale44
- B2B lead generation and marketing agencies in Minneapolis42
- B2B lead generation and marketing agencies in Salt Lake City41
- B2B lead generation and marketing agencies in Dover39
- B2B lead generation and marketing agencies in Irvine37
- B2B lead generation and marketing agencies in Pittsburgh37
- B2B lead generation and marketing agencies in San Antonio34
- B2B lead generation and marketing agencies in Nashville33
- B2B lead generation and marketing agencies in Raleigh33
- B2B lead generation and marketing agencies in Washington32
- B2B lead generation and marketing agencies in Columbus30
- B2B lead generation and marketing agencies in Cheyenne29
- B2B lead generation and marketing agencies in Cincinnati29
- B2B lead generation and marketing agencies in Jacksonville28
- B2B lead generation and marketing agencies in Plano28
- B2B lead generation and marketing agencies in Boulder26
- B2B lead generation and marketing agencies in Lewes25
- B2B lead generation and marketing agencies in New York City25
- B2B lead generation and marketing agencies in St Petersburg25
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 B2B lead generation and 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 B2B lead generation and marketing agencies are there based in Seattle, United States?
RevenueBase identified 52 B2B lead generation and 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?
Salesmrkt, headquartered in Seattle, tops this list with the largest team on record.
Which city has the most B2B lead generation and marketing agencies?
New York leads with 345 headquartered companies, followed by Miami (189) and Los Angeles (186).
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 116 verified decision-maker contacts tracked across these 52 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.
Ready to reach these companies? Verified emails and direct dials for all 52 B2B lead generation and marketing agencies based in Seattle, United States. Start with a free account, no credit card.
Download this list →Related lists
B2B lead generation and marketing agencies by geography
- B2B lead generation and marketing agencies based in Brisbane, Australia
- B2B lead generation and marketing agencies based in Melbourne, Australia
- B2B lead generation and marketing agencies based in Sydney, Australia
- B2B lead generation and marketing agencies based in Curitiba, Brazil
- B2B lead generation and marketing agencies based in Rio De Janeiro, Brazil
- B2B lead generation and marketing agencies based in Sao Paulo, Brazil
- B2B lead generation and marketing agencies based in Calgary, Canada
- B2B lead generation and marketing agencies based in Edmonton, Canada
- B2B lead generation and marketing agencies based in Mississauga, Canada
- B2B lead generation and marketing agencies based in Montreal, Canada
- B2B lead generation and marketing agencies based in Ottawa, Canada
- B2B lead generation and marketing agencies based in Toronto, Canada
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- B2B lead generation and marketing agencies based in Brisbane, Australia
- B2B lead generation and marketing agencies based in Melbourne, Australia
- B2B lead generation and marketing agencies based in Sydney, Australia
- B2B lead generation and marketing agencies based in Curitiba, Brazil
- B2B lead generation and marketing agencies based in Rio De Janeiro, Brazil
- B2B lead generation and marketing agencies based in Sao Paulo, Brazil