Company lists · Data refreshed November 2026

Top 25 Grassroots marketing agencies worldwide

Name: Grassroots marketing agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 45,102 companies tracked

RevenueBase identified 45,102 company matches for grassroots marketing agencies worldwide as of November 2026 and tracks 354,787 professional contacts across them, including 71,919 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for grassroots marketing agencies worldwide, 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 November 5, 2026. Country and city lists for grassroots marketing agencies follow the table.

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 Nov 5, 2026 How this list was built

45,102Companies

354,787Contacts tracked

71,919Verified emails

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The 25 largest grassroots marketing agencies worldwide

Ranked by team size

Top 25 of 45,102 company matches for grassroots marketing agencies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	Mosaic North America	Exact match	Toronto, ON, CanadaHQ recorded Nov 5, 2026	5,001-10,000	3,127 contacts →
	Exact match “At Mosaic, we change the way people experience brands and make moments that stick.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Marketing Werks	Exact match	Chicago, IL, United StatesHQ recorded Nov 5, 2026	n/a	2,265 contacts →
	Exact match “Marketing Werks has become Product Connections, a fully integrated engagement agency specializing in omnichannel solutions that build relationships between brands and consumers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Marketizon	Exact match	London, United KingdomHQ recorded Nov 5, 2026	n/a	1,989 contacts →
	Exact match “Marketizon is the leader in developing innovative, multi-channel marketing technologies.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Heaven Hopscotch Groupe	Exact match	Paris, FranceHQ recorded Nov 5, 2026	n/a	1,669 contacts →
	Exact match “Heaven est une agence de publicité next-generation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	GMR Marketing	Exact match	New Berlin, CA, United StatesHQ recorded Nov 5, 2026	501-1,000	1,583 contacts →
	Exact match “We are the Experience Agency making unforgettable stories born of humanity.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Jack Morton Worldwide	Exact match	Boston, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,487 contacts →
	Exact match “Jack Morton is an award-winning global brand experience agency.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Momentum Worldwide	Exact match	New York, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,387 contacts →
	Exact match “People are no longer satisfied with simply "hearing" a brand's message.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Credico	Exact match	Chicago, United StatesHQ recorded Nov 5, 2026	n/a	1,376 contacts →
	Exact match “Credico is the world's leading face-to-face customer acquisition agency, helping our clients attract and retain loyal customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	MCI	Exact match	Geneva, FranceHQ recorded Nov 5, 2026	1,001-5,000	1,287 contacts →
	Exact match “The power of people united in purpose is unstoppable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	TEAM	Exact match	Fort Lauderdale, NY, United StatesHQ recorded Nov 5, 2026	5,001-10,000	1,229 contacts →
	Exact match “TEAM is dedicated to crafting brand experiences that are not just seen and heard but truly felt.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	IVE Group	Exact match	Sydney, AustraliaHQ recorded Nov 5, 2026	1,001-5,000	933 contacts →
	Exact match “IVE Group is Australia’s largest diversified marketing company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	ITA Group, INC	Exact match	West Des Moines, IA, United StatesHQ recorded Nov 5, 2026	501-1,000	932 contacts →
	Exact match “ITA Group helps leading brands around the world take action with confidence, resulting in increased sales, purchases, retention, referrals and alignment.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Pico Group	Exact match	Hong Kong, United StatesHQ recorded Nov 5, 2026	1,001-5,000	923 contacts →
	Exact match “Pico is a global leader in total brand activation with a proven track record of more than five decades.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	160over90	Exact match	New York, NY, United StatesHQ recorded Nov 5, 2026	501-1,000	856 contacts →
	Exact match “160over90 is an award-winning global marketing agency which forges stronger human connections and creates shared moments where people feel something real.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Pardgroup	Exact match	Milan, ItalyHQ recorded Nov 5, 2026	501-1,000	833 contacts →
	Exact match “MILAN \| LONDON \| DUBAI \| MADRID \| DUBLIN \| LUGANO \| PARIS \| NEW YORK \| HONG KONG \| SHENZHEN Pardgroup is your partner for transforming ideas into memorable retail and field…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Laboratory	Exact match	Toronto, ON, CanadaHQ recorded Nov 5, 2026	n/a	794 contacts →
	Exact match “We develop strategic, creative solutions that aren’t afraid of challenging tradition, because the way we see it – great marketing shouldn’t have to feel like marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Allied Global Marketing	Exact match	Los Angeles, CA, United StatesHQ recorded Nov 5, 2026	201-500	723 contacts →
	Exact match “In business for over 30 years, Allied has built upon its roots in film advertising and publicity to become a global leader in entertainment, culture, and lifestyle marketing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Tradeway	Exact match	Randburg, South AfricaHQ recorded Nov 5, 2026	201-500	698 contacts →
	Exact match “Tradeway is South Africa's leading independent activation agency.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Linney	Exact match	Mansfield, United KingdomHQ recorded Nov 5, 2026	1,001-5,000	689 contacts →
	Exact match “We’re Linney, a connected marketing partner helping brands turn complexity into clarity across digital, physical and ecommerce channels.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Kestone	Exact match	Mohan Cooperative Industrial, United Arab EmiratesHQ recorded Nov 5, 2026	201-500	666 contacts →
	Exact match “We’re a 28 years old B2B marketing agency.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	CMD	Exact match	Portland, OR, United StatesHQ recorded Nov 5, 2026	n/a	631 contacts →
	Exact match “Take command of every opportunity with a partner that gets results.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Activasia	Exact match	Pasig City, PhilippinesHQ recorded Nov 5, 2026	201-500	573 contacts →
	Exact match “OUR PURPOSE SPREADING HAPPINESS.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	TRG	Exact match	Dallas, TX, United StatesHQ recorded Nov 5, 2026	501-1,000	571 contacts →
	Exact match “We make memories that move markets.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Direct Result Marketing	Exact match	Amsterdam, NetherlandsHQ recorded Nov 5, 2026	1,001-5,000	548 contacts →
	Exact match “We are the market leader in our sector in the field of strategy, campaigns, street marketing and fundraising for more than 25 charitable organizations and commercial brands.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Event 360	Exact match	Parker, CO, United StatesHQ recorded Nov 5, 2026	51-200	547 contacts →
	Exact match “The Event 360 Difference From logistics to execution, coaching to communications, we’re the peer-to-peer fundraising event production company that does it all, so you can focus…” Recorded in the RevenueBase company graph · Nov 5, 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 “grassroots marketing 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 45,102 grassroots marketing agencies worldwide

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Grassroots marketing agencies worldwide at a glance

As of Nov 5, 2026

20.3%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

30,535

11-50

12,098

51-200

1,824

201-500

352

501-1,000

101

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for grassroots marketing agencies are linked below.
What qualifies: Company records worldwide whose business descriptions match “grassroots marketing 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. 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 71,919 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 November 5, 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.

Grassroots marketing agencies by location

213 lists · largest first

Every Grassroots marketing agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “grassroots marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grassroots marketing agencies are there worldwide?

RevenueBase identified 45,102 company matches for grassroots marketing agencies worldwide as of November 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?

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

Which country has the most grassroots marketing agencies?

The United States leads with 12,178 companies, followed by India (2,866) and the United Kingdom (2,743). Every grassroots marketing agencies list by country and city is linked on this page.

Which city has the most grassroots marketing agencies?

London leads with 878 company records, followed by New York (712) and Sao Paulo (686).

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 71,919 professional contacts with verified work emails tracked across these 45,102 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 November 5, 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.