Company lists · Data refreshed September 2026
Top 25 Customer engagement agencies based in Washington, United States
RevenueBase identified 43 customer engagement agencies headquartered in Washington, United States as of September 2026 and tracks 15,702 professional contacts across them, including 1,307 with verified work emails. New York is the largest hub.
This list covers customer engagement 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 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.
The 25 largest customer engagement agencies based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,457 contacts → | ||||
Strong evidence “ibex delivers innovative business process outsourcing (BPO), smart digital marketing, online acquisition technology, and end-to-end customer engagement solutions to help companies…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 54 contacts → | ||||
Partial evidence “Tactis is a strategic customer experience agency specializing in integrating all aspects of customer experience, from customer experience strategy – enabled through user-centric…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 21 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 17 contacts → | ||||
Indirect evidence “Social Media Agency for Local Brands” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 12 contacts → | ||||
Indirect evidence “meraki (mer-ä-kē), v.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 11 contacts → | ||||
Partial evidence “iExcel is a digital marketing consultancy that focuses on driving customer acquisition, retention, and referrals for our clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 contacts → | ||||
Partial evidence “Delucchi Plus is a content marketing firm driving engagement, sales, influence and loyalty and on July 25, we’re merging with Streetsense to become the ultimate experts on…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect evidence “Our agency may be rooted in DC and Philly, but we don’t stop there.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Indirect evidence “Reimagine Main Street was created by the Observer-Reporter to help businesses take advantage of the amazing potential of online marketing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Indirect evidence “Immortology specializes in creating hard to ignore and impossible to forget brand communications that help our clients outsmart, outgrow and outlast – not outspend – their…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “At Campaign Inbox, we strive to help our clients win the fight for the inbox.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Partial evidence “At Show and Tell, we translate your why into compelling marketing and content that drive real engagement and ROI.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “Sage is a team of marketing communications professionals who take pride in truly understanding our clients’ businesses and becoming an extension of their team.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “We architect winning customer acquisition strategies through contextual storytelling, creating digital content-moments and sales-driven marketing strategies that grow businesses.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Partial evidence “Unlock the full potential of your retentions & email marketing with cutting-edge strategies and tools designed to maximize engagement, conversions and loyalty!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “IRL (in real life) is a new type of creative marketing agency specializing in building product, hospitality, and lifestyle brands through experience-driven content.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Partial evidence “Founded in 1997, Market Builders provides business to business communication solutions to improve relationships between our clients and their customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Strong evidence “At Numah Solutions LLC, we specialize in helping tech companies maximize customer engagement, increase customer value, and drive revenue growth.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Indirect evidence “SRJ Digital [Surge Digital] is a digital marketing agency that specializes in organic solutions that create relationships & drive results.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Indirect evidence “We take a human-first approach to developing inspirational creative, scalable growth strategies, digital enterprises, and targeted communications.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “ProspX.ai Was Built for the Future-Harnessing AI & Strategy to Transform Marketing & CX ProspX.ai was founded on the belief that AI and data-driven strategy would redefine how…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “Help businesses build their brand by deploying a fully integrated consumer engagement & commerce system to source new customers & cultivate and maintain customer relationships.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “Renegade Business Solutions (RBS) is an independent, results oriented Internet marketing agency that exists to help its clients lead in the digital age.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Encyclia is a consultancy focusing on acquisition, retention, and advocacy.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence “Company with 10+ years of experience specialized in communicating, connecting, and influencing target audiences.” Source: RevenueBase Database · checked Sep 19, 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: customer engagement 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 customer engagement agencies.
- Partial evidence
- Its own public description names part of customer engagement agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name customer engagement 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 43 customer engagement agencies based in Washington, United States
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Customer engagement agencies based in Washington, United States at a glance
As of Sep 19, 2026Companies by employee count
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 43 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 customer engagement 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 “customer engagement 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 customer engagement 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 customer engagement 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, 1,307 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.
Customer engagement agencies by metro in the United States
- Customer engagement agencies in New York615
- Customer engagement agencies in Los Angeles346
- Customer engagement agencies in Miami197
- Customer engagement agencies in Chicago196
- Customer engagement agencies in Atlanta174
- Customer engagement agencies in San Francisco152
- Customer engagement agencies in Dallas133
- Customer engagement agencies in Austin128
- Customer engagement agencies in Houston102
- Customer engagement agencies in San Diego99
- Customer engagement agencies in Boston96
- Customer engagement agencies in Denver94
- Customer engagement agencies in Minneapolis93
- Customer engagement agencies in Orlando80
- Customer engagement agencies in Seattle77
- Customer engagement agencies in Charlotte67
- Customer engagement agencies in Las Vegas66
- Customer engagement agencies in Portland65
- Customer engagement agencies in Philadelphia59
- Customer engagement agencies in Tampa59
- Customer engagement agencies in Columbus53
- Customer engagement agencies in Phoenix52
- Customer engagement agencies in San Antonio49
- Customer engagement agencies in Irvine45
- Customer engagement agencies in Washington43
- Customer engagement agencies in Sheridan42
- Customer engagement agencies in Cincinnati40
- Customer engagement agencies in Jacksonville39
- Customer engagement agencies in Kansas City39
- Customer engagement agencies in New York City39
- Customer engagement agencies in Scottsdale39
- Customer engagement agencies in Nashville38
- Customer engagement agencies in Raleigh38
- Customer engagement agencies in Salt Lake City38
- Customer engagement agencies in Detroit37
- Customer engagement agencies in Indianapolis37
- Customer engagement agencies in Boca Raton35
- Customer engagement agencies in Brooklyn34
- Customer engagement agencies in Pittsburgh29
- Customer engagement agencies in Fort Lauderdale28
- Customer engagement agencies in Wilmington28
- Customer engagement agencies in Milwaukee27
- Customer engagement agencies in Santa Monica26
- Customer engagement agencies in Boulder25
- Customer engagement agencies in Louisville25
- Customer engagement agencies in New Orleans25
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 customer engagement 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 customer engagement agencies are there based in Washington, United States?
RevenueBase identified 43 customer engagement 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?
IBEX, headquartered in Washington, tops this list with the largest team on record.
Which city has the most customer engagement agencies?
New York leads with 615 headquartered companies, followed by Los Angeles (346) and Miami (197).
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 1,307 verified decision-maker contacts tracked across these 43 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.
Ready to reach these companies? Verified emails and direct dials for all 43 customer engagement agencies based in Washington, United States. Start with a free account, no credit card.
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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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