Company lists · Data refreshed September 2026

Top 25 Agency internet marketing agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 125,199 companies tracked

RevenueBase identified 125,199 agency internet marketing agencies worldwide as of September 2026 and tracks 629,298 professional contacts across them, including 139,450 with verified work emails and 94,444 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers agency internet marketing agencies worldwide, 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 23, 2026. Country and city lists for agency internet marketing agencies follow the table.

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 23, 2026 86% judged on-target in blind review

125,199Companies

629,298Contacts tracked

139,450Verified emails

94,444Mobile numbers

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The 25 largest agency internet marketing agencies worldwide

Ranked by team size

Top 25 of 125,199 agency internet marketing agencies worldwide, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to agency internet 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	HIBU	Partial evidence	Cedar Rapids, IA, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,426 contacts →
	Partial evidence “Hibu is a leading provider of technology-driven, integrated digital marketing solutions for America’s local businesses, trusted by tens of thousands of local business owners.” Source: RevenueBase Database · checked Sep 23, 2026
2	IO	Partial evidence	Herentals, BelgiumHQ checked Sep 23, 2026	1,001-5,000	3,670 contacts →
	Partial evidence “iO is an AI-native partner in marketing and technology, with experts across 12 campuses in Belgium, the Netherlands, Sweden, Denmark and Bulgaria.” Source: RevenueBase Database · checked Sep 23, 2026
3	Best Version Media	Partial evidence	Brookfield, WI, United StatesHQ checked Sep 23, 2026	n/a	2,416 contacts →
	Partial evidence “Best Version Media simplifies local marketing by offering small and midsize businesses a complete mix of solutions to keep them top-of-mind, from community magazine ads to digital…” Source: RevenueBase Database · checked Sep 23, 2026
4	Constant Contact	Partial evidence	Waltham, MA, United StatesHQ checked Sep 23, 2026	1,001-5,000	1,611 contacts →
	Partial evidence “We deliver for small businesses with powerful tools to simplify and amplify digital marketing.” Source: RevenueBase Database · checked Sep 23, 2026
5	Localiq	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	1,534 contacts →
	Partial evidence “Grow your business with digital marketing powered by AI and local expertise.” Source: RevenueBase Database · checked Sep 23, 2026
6	YELL	Partial evidence	Reading, United KingdomHQ checked Sep 23, 2026	501-1,000	1,284 contacts →
	Partial evidence “Since 1966, we’ve been helping UK businesses grow – from printed ads in the Yellow Pages to powerful, AI-driven digital marketing that delivers real results.” Source: RevenueBase Database · checked Sep 23, 2026
7	Scorpion	Indirect evidence	Draper, UT, United StatesHQ checked Sep 23, 2026	501-1,000	1,076 contacts →
	Indirect evidence “Scorpion is the leader in helping local businesses succeed by focusing on what truly matters-driving revenue.” Source: RevenueBase Database · checked Sep 23, 2026
8	Brasil Monks	Indirect evidence	São Paulo, BrazilHQ checked Sep 23, 2026	1,001-5,000	963 contacts →
	Indirect evidence “Media.Monks, the digital-first operating brand of S4Capital plc, connects content, data & digital media and technology services across one global team built from the bottom up.” Source: RevenueBase Database · checked Sep 23, 2026
9	Logical Position	Indirect evidence	Lake Oswego, OR, United StatesHQ checked Sep 23, 2026	501-1,000	899 contacts →
	Indirect evidence “Logical Position (LP) is an Inc.” Source: RevenueBase Database · checked Sep 23, 2026
10	WEBFX	Partial evidence	Harrisburg, PA, United StatesHQ checked Sep 23, 2026	501-1,000	866 contacts →
	Partial evidence “We're here to be your digital marketing growth partner in the AI era.” Source: RevenueBase Database · checked Sep 23, 2026
11	NP Digital	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	866 contacts →
	Indirect evidence “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Source: RevenueBase Database · checked Sep 23, 2026
12	SEO INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 23, 2026	n/a	825 contacts →
	Indirect evidence “Since its inception in 1997, SEO Inc.” Source: RevenueBase Database · checked Sep 23, 2026
13	Cadastra	Partial evidence	São Paulo, BrazilHQ checked Sep 23, 2026	501-1,000	786 contacts →
	Partial evidence “We are a global company that blends digital marketing services, consulting and technology.” Source: RevenueBase Database · checked Sep 23, 2026
14	Abstrakt Marketing Group	Indirect evidence	St Louis, MO, United StatesHQ checked Sep 23, 2026	501-1,000	724 contacts →
	Indirect evidence “We book the qualified meetings that fill your pipeline for any B2B company ready to grow.” Source: RevenueBase Database · checked Sep 23, 2026
15	LWS	Partial evidence	Almada, PortugalHQ checked Sep 23, 2026	n/a	595 contacts →
	Partial evidence “A Empresa Lojawebsite!LWS - Criação de Sites Profissionais, Lda, tem como principal objectivo usar a Internet como um meio de comunicação para alavancar o crescimento de PME's, e…” Source: RevenueBase Database · checked Sep 23, 2026
16	Wildnet Technologies	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	201-500	590 contacts →
	Partial evidence “Wildnet Technologies - Best Digital Marketing Agency \| White Label Services for Growing Agencies \| Results-Driven AI SEO Services We don't just run campaigns-we build growth…” Source: RevenueBase Database · checked Sep 23, 2026
17	Precis	Partial evidence	Stockholm, SwedenHQ checked Sep 23, 2026	201-500	535 contacts →
	Partial evidence “Precis is a modern, tech-powered digital marketing agency specialising in media buying, analytics, creative, and proprietary technology.” Source: RevenueBase Database · checked Sep 23, 2026
18	Tombras	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 23, 2026	201-500	496 contacts →
	Indirect evidence “Tombras is a 450+ person, full-service agency with a digital mindset.” Source: RevenueBase Database · checked Sep 23, 2026
19	Amsive	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	501-1,000	488 contacts →
	Partial evidence “Amsive is a data-driven performance marketing agency that enhances marketing ROI through innovative customer acquisition and engagement solutions.” Source: RevenueBase Database · checked Sep 23, 2026
20	Mavlers	Partial evidence	San Jose, CA, United StatesHQ checked Sep 23, 2026	501-1,000	488 contacts →
	Partial evidence “At Mavlers, we’re more than just a digital marketing and technology partner-we’re your behind-the-scenes powerhouse.” Source: RevenueBase Database · checked Sep 23, 2026
21	Clickout Media	Partial evidence	Naxxar, MaltaHQ checked Sep 23, 2026	201-500	463 contacts →
	Partial evidence “ClickOut Media is an remote first, industry leading, multichannel marketing company, delivering best in class SEO & content for esteemed clients all over the world.” Source: RevenueBase Database · checked Sep 23, 2026
22	M C Saatchi Performance	Indirect evidence	London, United KingdomHQ checked Sep 23, 2026	201-500	457 contacts →
	Indirect evidence “We are a Global digital media agency specializing in taking a human approach to connecting brands with people across all channels.” Source: RevenueBase Database · checked Sep 23, 2026
23	Partoo	Indirect evidence	Paris, FranceHQ checked Sep 23, 2026	201-500	437 contacts →
	Indirect evidence “At Partoo, our mission is to help businesses get closer to their customers, thanks to digital!” Source: RevenueBase Database · checked Sep 23, 2026
24	Orbidi	Indirect evidence	Santa Cruz De Tenerife, SpainHQ checked Sep 23, 2026	201-500	417 contacts →
	Indirect evidence “Somos como el piloto automático de un avión.” Source: RevenueBase Database · checked Sep 23, 2026
25	Avatar	Indirect evidence	Caba, IndiaHQ checked Sep 23, 2026	51-200	412 contacts →
	Indirect evidence “About us Avatar is an independent digital agency.” Source: RevenueBase Database · checked Sep 23, 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: agency internet 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 agency internet marketing agencies.
Partial evidence: Its own public description names part of agency internet marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name agency internet 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 125,199 agency internet marketing agencies worldwide

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Agency internet marketing agencies worldwide at a glance

As of Sep 23, 2026

22.2%Verified-email coverage

15.0%Mobile-number coverage

5.0Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

98,587

11-50

21,274

51-200

2,550

201-500

430

501-1,000

1,001-5,000

5,001-10,000

10001+

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 agency internet 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.
Coverage: 45 countries, largest first: the United States, the United Kingdom, Brazil, Canada, Spain, Australia, France, Germany, the Netherlands, Italy and 35 more. Country and city lists for agency internet marketing agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “agency internet 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 agency internet 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 agency internet marketing agencies, and records with no verified work email.
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, 139,450 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 23, 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.

Agency internet marketing agencies by location

521 lists · largest first

Every Agency internet 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 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 agency internet 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 agency internet marketing agencies are there worldwide?

RevenueBase identified 125,199 agency internet marketing agencies worldwide 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?

HIBU, headquartered in Cedar Rapids, tops this list with the largest team on record.

Which country has the most agency internet marketing agencies?

The United States leads with 43,980 companies, followed by the United Kingdom (12,621) and Brazil (10,417). Every agency internet marketing agencies list by country and city is linked on this page.

Which city has the most agency internet marketing agencies?

London leads with 3818 headquartered companies, followed by Sao Paulo (2039) and New York (1610).

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 139,450 verified decision-maker contacts tracked across these 125,199 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 23, 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.