Company lists · Data refreshed September 2026

Top 25 Donor engagement marketing agencies based in Washington, United States

Name: Donor engagement 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 53 companies tracked

RevenueBase identified 53 donor engagement marketing agencies headquartered in Washington, United States as of September 2026 and tracks 409 professional contacts across them, including 264 with verified work emails. Across the United States, New York is the largest hub for this category (68 companies); Washington follows with 53.

This list covers donor engagement 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

53Companies

409Contacts tracked

264Verified emails

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The 25 largest donor engagement marketing agencies based in Washington, United States

Ranked by team size

Top 25 of 53 donor engagement 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 donor engagement 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	Avalon Consulting Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	74 contacts →
	Partial evidence “Avalon is a full-service fundraising consulting agency helping nonprofits realize the full potential of their direct marketing programs through multi-channel fundraising…” Source: RevenueBase Database · checked Sep 28, 2026
2	C K	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	66 contacts →
	Partial evidence “C+K is a marketing and advertising company based out of 1640 Rhode Island Ave NW, Washington, District of Columbia, United States.” Source: RevenueBase Database · checked Sep 28, 2026
3	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
4	Blueprint Interactive	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	36 contacts →
	Partial evidence “Blueprint Interactive is a full-service marketing firm specializing in digital strategy, targeting, creative, and advertising.” Source: RevenueBase Database · checked Sep 28, 2026
5	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
6	Ascend Digital Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “With decades of combined experience powering campaigns of all kinds to success, our team crafts innovative, data-driven, and on-message digital campaigns tailored to our clients’…” Source: RevenueBase Database · checked Sep 28, 2026
7	RAD Campaign	Partial evidence	Washington, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Rad Campaign is a full-service web agency that provides web design, development, online marketing and strategic services to non-profit organizations, political campaigns, and…” Source: RevenueBase Database · checked Sep 28, 2026
8	Integrated Direct Marketing, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Integrated Direct Marketing (IDM) is a full-service direct marketing agency that partners with nonprofit organizations to develop and meet fundraising, advocacy, and public…” Source: RevenueBase Database · checked Sep 28, 2026
9	4site Studios	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “4Site Studios is your digital growth partner-an extension of your team, not just a vendor.” Source: RevenueBase Database · checked Sep 28, 2026
10	Openbox9	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Expanding the capacity of nonprofits through graphic design, branding, strategy, and mission-driven communication solutions.” Source: RevenueBase Database · checked Sep 28, 2026
11	Fundraise INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
12	Impact Communications, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Impact Communications is an experienced professional fundraising creative agency.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sage Communications Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Sage Communications is an award-winning marketing and fundraising agency specializing in all things direct response.” Source: RevenueBase Database · checked Sep 28, 2026
14	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
15	TUSK	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “We empower changemakers.” Source: RevenueBase Database · checked Sep 28, 2026
16	MKZ Strategies & Events	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “mKz Event Strategies offers inspired donor engagement that exceeds expectations and surpasses goals.” Source: RevenueBase Database · checked Sep 28, 2026
17	Mesg Marketing	Indirect evidence	Washington, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Through integrated multichannel campaigns and intense optimization based on audience and key performance metrics, we can help you raise more money, grow and cultivate your…” Source: RevenueBase Database · checked Sep 28, 2026
18	Upwave Digital Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “Email Campaigns Digital Fundraising List Acquisition Text-to-Action Web Design” Source: RevenueBase Database · checked Sep 28, 2026
19	Cause Craft Consulting	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Cause Craft Consulting is a small-scale, high-impact management & strategy consulting company that helps marketing, fundraising, communications, advocacy, and digital teams to…” Source: RevenueBase Database · checked Sep 28, 2026
20	Raise The Roots	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Raise the Roots is a digital agency specializing in online engagement for nonprofit organizations.” Source: RevenueBase Database · checked Sep 28, 2026
21	Easy School Marketing	Partial evidence	Washington, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Easy School Marketing is a boutique school marketing and fundraising agency for small independent schools.” Source: RevenueBase Database · checked Sep 28, 2026
22	Modernist Communication Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Modernist Communication Strategies is on a mission to help Change Agents cut through the noise and give their big ideas a microphone.” Source: RevenueBase Database · checked Sep 28, 2026
23	Market ME Consulting	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Market Me Consulting is a social-impact marketing and fundraising agency that helps organizations grow.” Source: RevenueBase Database · checked Sep 28, 2026
24	MY Blueprint LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Blueprint is a creative agency that focuses on innovative media and funding strategies for non-profits and start-up public good companies.” Source: RevenueBase Database · checked Sep 28, 2026
25	Beth Rader Digital Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “We partner with non-profits, political organizations, and Democratic campaigns to help build digital programs that empower supporters, raise millions of dollars, and further…” 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: donor engagement 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 donor engagement marketing agencies.
Partial evidence: Its own public description names part of donor engagement marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name donor engagement 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 53 donor engagement marketing agencies based in Washington, United States

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Donor engagement marketing agencies based in Washington, United States at a glance

As of Sep 28, 2026

64.5%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

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 53 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 donor engagement 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 “donor engagement 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 donor engagement 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 donor engagement 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, 264 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.

Donor engagement 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 donor engagement 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 donor engagement marketing agencies are there based in Washington, United States?

RevenueBase identified 53 donor engagement 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?

Avalon Consulting Group, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most donor engagement marketing agencies?

New York leads the United States with 68 headquartered companies, followed by Washington (53) and Chicago (32).

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 264 verified decision-maker contacts tracked across these 53 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.