Company lists · Data refreshed September 2026

Top 25 Grassroots marketing agencies based in Washington, United States

Name: Grassroots marketing agencies based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 74 companies tracked

RevenueBase identified 74 grassroots marketing agencies headquartered in Washington, United States as of September 2026 and tracks 1,074 professional contacts across them, including 503 with verified work emails. Across the United States, New York is the largest hub for this category (364 companies); Washington has 74.

This list covers grassroots marketing agencies headquartered in Washington, 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

74Companies

1,074Contacts tracked

503Verified emails

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The 25 largest grassroots marketing agencies based in Washington, United States

Ranked by team size

Top 25 of 74 grassroots marketing agencies based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to grassroots marketing 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	GMMB	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	239 contacts →
	Indirect evidence “We’re bold.” Source: RevenueBase Database · checked Sep 28, 2026
2	Precision	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	135 contacts →
	Partial evidence “Precision is an integrated strategy and marketing agency.” Source: RevenueBase Database · checked Sep 28, 2026
3	Youth Marketing Connection	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	83 contacts →
	Indirect evidence “YMC builds and connects brands and organizations with #GenZ and #GenAlpha.” Source: RevenueBase Database · checked Sep 28, 2026
4	The Brand Guild	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “The Brand Guild is the agency of choice for market makers pushing their way to scale and for market leaders breathing new energy into their organizations.” Source: RevenueBase Database · checked Sep 28, 2026
5	Linder Global Events	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	75 contacts →
	Indirect evidence “Linder is a trusted global events agency that plans, promotes, and produces impactful experiences for Fortune 100 companies and leading nonprofits worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
6	Hilltop Public Solutions	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	52 contacts →
	Partial evidence “At Hilltop, we manage high-stakes, high-profile campaigns, build coalitions and find and mobilize grasstops and grassroots advocates across the country.” Source: RevenueBase Database · checked Sep 28, 2026
7	Rising Tide Interactive	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Partial evidence “Rising Tide Interactive is a full-service digital marketing agency dedicated to using data-driven strategy to achieve results that matter for our clients.” Source: RevenueBase Database · checked Sep 28, 2026
8	Hager Sharp	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “At Hager Sharp, we’ve dedicated the last 50 years to creating communications campaigns for organizations committed to improving health, advancing education, transforming our…” Source: RevenueBase Database · checked Sep 28, 2026
9	Trivision	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Partial evidence “TriVision is an award-winning, full-service marketing agency helping organizations communicate with clarity and create with impact.” Source: RevenueBase Database · checked Sep 28, 2026
10	NEW Blue Interactive	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “We believe that progress doesn’t happen on its own.” Source: RevenueBase Database · checked Sep 28, 2026
11	Values Partnerships	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Values Partnerships is a social impact agency.” Source: RevenueBase Database · checked Sep 28, 2026
12	ICE Factor	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	21 contacts →
	Partial evidence “At ICE Factor, we are more than just an experiential marketing agency-we're your strategic partner in crafting unforgettable brand experiences.” Source: RevenueBase Database · checked Sep 28, 2026
13	Direct Impact	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	20 contacts →
	Indirect evidence “We have been in the business of mobilizing people for more than 20 years.” Source: RevenueBase Database · checked Sep 28, 2026
14	Isom Global Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “We deliver high-impact, KPI-driven campaigns for enterprise, federal, and nonprofit clients across traditional and digital channels.” Source: RevenueBase Database · checked Sep 28, 2026
15	Harbinger	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	14 contacts →
	Partial evidence “Harbinger is an experiential marketing agency that produces in-person events, digital experiences, and media engagement for the world's leading personalities, brands, and…” Source: RevenueBase Database · checked Sep 28, 2026
16	Grit Studio	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Hi, We’re GRIT - We’re the go-to boutique agency for full service outsourced marketing, transforming growth-stage beauty, wellness and modern parenting brands into industry…” Source: RevenueBase Database · checked Sep 28, 2026
17	Vestige Strategies LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Partial evidence “Vestige Strategies, LLC is a Washington, DC-based public affairs firm that specializes in grassroots community and civic engagement strategies.” Source: RevenueBase Database · checked Sep 28, 2026
18	Buoyant	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Buoyant Partners is an award-winning, full-service marketing & communications firm based in Washington, DC, that helps our clients shift outdated, under-performing and…” Source: RevenueBase Database · checked Sep 28, 2026
19	HAVIT	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Our agency may be rooted in DC and Philly, but we don’t stop there.” Source: RevenueBase Database · checked Sep 28, 2026
20	Strategies For Change Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Welcome to Strategies for Change Group (SFCG) – a marketing consultancy firm and the driving force behind transformation in your initiatives.” Source: RevenueBase Database · checked Sep 28, 2026
21	Dash Coordinating & Marketing, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “DASH Coordinating & Marketing, LLC is a vibrant young company, comprised of a team of creative minds who manage all aspects of marketing and business planning; from grass roots…” Source: RevenueBase Database · checked Sep 28, 2026
22	Departmentc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “DepartmentC is a collective of designers, writers and strategists with a passion for connecting our customers with theirs.” Source: RevenueBase Database · checked Sep 28, 2026
23	Four Corners Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “At Four Corners Strategies, we turn ideas into extraordinary experiences through strategic vision, creativity, and flawless execution.” Source: RevenueBase Database · checked Sep 28, 2026
24	Pharos	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Pharos is a pioneering force in the digital landscape, guiding businesses towards a sustainable and purposeful future.” Source: RevenueBase Database · checked Sep 28, 2026
25	Megan Flynn Marketing	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “We're on a mission to help small businesses thrive by providing personalized marketing services at prices small businesses can afford.” 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: grassroots 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 grassroots marketing agencies.
Partial evidence: Its own public description names part of grassroots marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grassroots 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 74 grassroots marketing agencies based in Washington, United States

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Grassroots marketing agencies based in Washington, United States at a glance

As of Sep 28, 2026

46.8%Verified-email coverage

14.5Average 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 Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 74 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 grassroots 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 Washington, United States whose own description of what they do matches “grassroots 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 grassroots 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 grassroots marketing agencies, and records with no verified work email. Companies headquartered outside Washington 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, 503 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.

Grassroots marketing 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 grassroots 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 grassroots marketing agencies are there based in Washington, United States?

RevenueBase identified 74 grassroots marketing agencies headquartered in Washington, 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?

GMMB, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most grassroots marketing agencies?

New York leads the United States with 364 headquartered companies, followed by Los Angeles (291) and Miami (144). Washington has 74.

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 503 verified decision-maker contacts tracked across these 74 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.