Company lists · Data refreshed October 2026

Top 25 International advertising agencies based in Boston, United States

Name: International advertising agencies based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 49 companies tracked

RevenueBase identified 49 company matches for international advertising agencies associated with Boston, United States as of October 2026 and tracks 4,563 professional contacts across them, including 1,496 with verified work emails. Across the United States, New York is the largest hub for this category (638 companies); Boston has 49.

This list covers company matches for international advertising agencies associated with Boston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built

49Companies

4,563Contacts tracked

1,496Verified emails

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The 25 largest international advertising agencies based in Boston, United States

Ranked by team size

Top 25 of 49 company matches for international advertising agencies based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Digitas North America	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	1,001-5,000	2,654 contacts →
	Exact match “Digitas is the Networked Experience Agency, built on the vision that we create magnetic experiences that earn the right for brands to exist in human networks.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2	Arnold Worldwide	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	201-500	447 contacts →
	Exact match “Arnold is an independent-minded integrated advertising agency that believes creativity should always be a lever for growth.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3	Hill Holliday	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	201-500	246 contacts →
	Exact match “At Hill Holliday, we help our clients fight the daily share battle with ideas that win.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4	Connelly Partners	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	142 contacts →
	Exact match “We’re Connelly Partners, an independent, full-service marketing agency spanning hubs in Boston, Dublin and Vancouver.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5	Allen & Gerritsen	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	132 contacts →
	Exact match “A&G (Allen & Gerritsen) exists to help brands Be Unignorable.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6	Genuine	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	76 contacts →
	Exact match “Genuine is a digital marketing agency that lives up to its name.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7	451 Agency	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	72 contacts →
	Exact match “451 Agency is an award-winning, fully integrated marketing, advertising, and communications agency that specializes in creative design, advertising, public relations, digital…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8	Small Army Finn Partners	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	69 contacts →
	Exact match “Small Army is now FINN Partners, a global marketing and communications firm helping brands build deeper relationships.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9	Overdrive	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	51-200	68 contacts →
	Exact match “Overdrive is a full-service digital agency built for brands that need more than vendor support-they need strategic firepower and operational efficiency.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10	Marlo Marketing	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	30 contacts →
	Exact match “Integrated.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11	Zozimus Agency	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	24 contacts →
	Exact match “We understand that you can’t jam a prescriptive service down someone’s throat just because it fits your agenda.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12	We Make Heart	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	1-10	24 contacts →
	Exact match “Heart is a brand company and creative studio.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13	Colossus	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	22 contacts →
	Exact match “2025 AdAge Small Agency Award Winner.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14	Pile And Company	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	18 contacts →
	Exact match “Pile and Company is a consulting firm focused on marketing resources and relationships.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15	Brand Content	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	16 contacts →
	Exact match “Is relentless a positive attitude?” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16	Genrevv	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	16 contacts →
	Exact match “We’re a consumer-centric strategy and creative agency that scales revenue, audience, and brand.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17	REALM	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	14 contacts →
	Exact match “We are a global B2B agency that delivers strongly integrated media campaigns that solve real business challenges.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18	The Grist	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	1-10	13 contacts →
	Exact match “We are a Boston ad agency infused with grit, bootstraps, and an entrepreneurial spirit of resilience and determination.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19	Holland-Mark	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	11 contacts →
	Exact match “Holland-Mark is a small agency that makes big impact.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20	Banme Media	Exact match	Boston, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Welcome to our cutting-edge advertising agency, banMe (Best Advertising Near Me).” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21	Karis Marketing E Inteligência DE Mercado	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	9 contacts →
	Exact match “Somos a Karis Marketing, uma empresa multinacional, especializada em desenvolver e implementar grandes estratégias para empreendedores, com o objetivo de decolar negócios e…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22	Goel Strategies	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	8 contacts →
	Exact match “Creative / Marketing Agency” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23	The Fantastical	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	6 contacts →
	Exact match “Performance-driven creative shifts creative marketing to emphasize accountability by being data conscious, digitally centric and consumer focused.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24	Visual Dialogue Boston	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	1-10	6 contacts →
	Exact match “For more than 25 years, Visual Dialogue has been asking smart questions, developing thoughtful creative solutions, and going beyond the expected to tell our clients’ stories.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25	Rattle Advertising	Exact match	Boston, MA, United StatesHQ recorded Oct 1, 2026	11-50	5 contacts →
	Exact match “Located at the intersection of downtown Boston's Financial and Innovation Districts, Rattle is a full-service advertising, marketing, and design agency that combines insightful…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “international advertising agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 49 international advertising agencies based in Boston, United States

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International advertising agencies based in Boston, United States at a glance

As of Oct 1, 2026

32.8%Verified-email coverage

93.1Average contacts per company

11-50Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 49 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Boston, United States whose business descriptions match “international advertising agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,496 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

International advertising agencies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “international advertising agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many international advertising agencies are there based in Boston, United States?

RevenueBase identified 49 company matches for international advertising agencies associated with Boston, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Digitas North America tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most international advertising agencies?

New York leads the United States with 638 company records, followed by Los Angeles (316) and Miami (174). Boston has 49.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,496 professional contacts with verified work emails tracked across these 49 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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 SmartSearch, 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.