Company lists · Data refreshed September 2026

Top 25 Enterprise SEO agencies worldwide

RevenueBase identified 26,927 enterprise SEO agencies worldwide as of September 2026 and tracks 189,320 professional contacts across them, including 35,471 with verified work emails and 21,899 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers enterprise SEO 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 2, 2026. Country and city lists for enterprise SEO 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
26,927Companies
189,320Contacts tracked
35,471Verified emails
21,899Mobile numbers
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The 25 largest enterprise SEO agencies worldwide

Ranked by team size
Top 25 of 26,927 enterprise SEO agencies worldwide, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise SEO 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMelbourne, AUn/a6,891 contacts →

Indirect evidence

“The way people search is changing.”

Source: RevenueBase Database · checked Sep 2, 2026
2Indirect evidenceHarrisburg, PA, US501-1,000874 contacts →

Indirect evidence

“We're here to be your digital marketing growth partner in the AI era.”

Source: RevenueBase Database · checked Sep 2, 2026
3Indirect evidenceFransisco, US201-500626 contacts →

Indirect evidence

“With a vision of delivering innovative solutions through cutting-edge technology, Mr.”

Source: RevenueBase Database · checked Sep 2, 2026
4Partial evidenceNew York, NY, US201-500609 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 2, 2026
5Indirect evidenceAlmada, PTn/a597 contacts →

Indirect 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 2, 2026
6Partial evidenceNaxxar, MT201-500464 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 2, 2026
7Indirect evidenceNew York, NY, US201-500427 contacts →

Indirect evidence

“Within a short span, eBrandz has seen enormous growth.”

Source: RevenueBase Database · checked Sep 2, 2026
8Indirect evidenceMiddletown, DE, US201-500390 contacts →

Indirect evidence

“Do you want to see your business on heights?”

Source: RevenueBase Database · checked Sep 2, 2026
9Indirect evidenceBrisbane City, AU51-200342 contacts →

Indirect evidence

“Online Marketing Gurus (OMG) is an award-winning Leading Digital Marketing Agency, with locations in Australia, USA, UAE & Singapore.”

Source: RevenueBase Database · checked Sep 2, 2026
10Partial evidenceLehi, UT, US201-500330 contacts →

Partial evidence

“At Boostability, we're more than just an SEO company; we're your strategic partner in driving online growth.”

Source: RevenueBase Database · checked Sep 2, 2026
11Partial evidenceLos Angeles, CA, US201-500320 contacts →

Partial evidence

“Coalition Technologies is one of the leading SEO & web design agencies in the United States.”

Source: RevenueBase Database · checked Sep 2, 2026
12Indirect evidenceHouston, TX, US501-1,000257 contacts →

Indirect evidence

“AdsRole is a results-driven digital marketing company that helps businesses grow through smart advertising and proven growth strategies.”

Source: RevenueBase Database · checked Sep 2, 2026
13Indirect evidenceToronto, ON, CA51-200233 contacts →

Indirect evidence

“If your business isn't generating consistent leads online, the problem usually is your digital presence.”

Source: RevenueBase Database · checked Sep 2, 2026
14Partial evidenceLyon, FR201-500225 contacts →

Partial evidence

“Eskimoz est une agence d’acquisition digitale internationale qui aide les entreprises à optimiser leurs revenus et booster leur croissance grâce aux leviers digitaux tels que SEO…”

Source: RevenueBase Database · checked Sep 2, 2026
15Indirect evidenceCesson-Sevigne, FR51-200215 contacts →

Indirect evidence

“MEDIAVEILLE est une agence de conseil et de services de marketing online qui met en œuvre des stratégies de conquête et de fidélisation sur Internet.”

Source: RevenueBase Database · checked Sep 2, 2026
16Indirect evidenceNimes, FR51-200213 contacts →

Indirect evidence

“L’agence digitale marseillaise Jalis a été fondée par Serge et Ghizlaine Alagy en 2002.”

Source: RevenueBase Database · checked Sep 2, 2026
17Indirect evidenceAT51-200191 contacts →

Indirect evidence

“Seit der Gründung in 1919 hat sich Herold laufend weiterentwickelt und ist heute Teil der group.one, die zu einer der führenden Unternehmensgruppen in Europa im Bereich Domains…”

Source: RevenueBase Database · checked Sep 2, 2026
18Partial evidenceLondon, GB201-500187 contacts →

Partial evidence

“TechShu is a work-first performance marketing agency in India, helping enterprises and high-growth brands drive measurable revenue through data-led digital marketing.”

Source: RevenueBase Database · checked Sep 2, 2026
19Indirect evidenceStrathfield, AU51-200182 contacts →

Indirect evidence

“Global Digital Infrastructure, Marketing & Creative Specialists | Founded 2010 | Australia · UAE · New Zealand · United Kingdom · Brazil · Indonesia AIIMS™ Group is an…”

Source: RevenueBase Database · checked Sep 2, 2026
20Indirect evidenceHelsinki, FI51-200165 contacts →

Indirect evidence

“Even before AI-powered Search and platforms like ChatGPT or Perplexity started reshaping how people search, we anticipated the shift in user behaviour.”

Source: RevenueBase Database · checked Sep 2, 2026
21Partial evidenceLeeds, GB51-200165 contacts →

Partial evidence

“ICS-digital is a global SEO, content, advertising, translation & digital PR agency working in over 100 languages, across over 90 markets in the most highly regulated and highly…”

Source: RevenueBase Database · checked Sep 2, 2026
22Indirect evidenceBoulogne-Billancourt, FR201-500163 contacts →

Indirect evidence

“Votre agence de Marketing Digital, spécialiste du référencement local depuis 2009 Chez Futur Digital, nous comprenons l'importance cruciale d'une présence digitale robuste pour…”

Source: RevenueBase Database · checked Sep 2, 2026
23Indirect evidenceParis, FR201-500159 contacts →

Indirect evidence

“Ad’s up est une agence spécialisée dans la création et l'optimisation de campagnes de liens sponsorisés sur les différents moteurs de recherche (Google, Yahoo et Bing) et réseaux…”

Source: RevenueBase Database · checked Sep 2, 2026
24Indirect evidenceOdesa, UA51-200159 contacts →

Indirect evidence

“We are experts in the digital world and know how to make Google love your website even more.”

Source: RevenueBase Database · checked Sep 2, 2026
25Indirect evidenceMiami, FL, US201-500154 contacts →

Indirect evidence

“As one of the fastest-rising digital marketing agencies in the U.S, V Digital Services operates in more than 300 American cities, where we offer premier white-label solutions for…”

Source: RevenueBase Database · checked Sep 2, 2026

Showing 25 of 26,927 enterprise SEO agencies worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 35,471 reachable decision-makers.

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Enterprise SEO agencies worldwide at a glance

As of Sep 2, 2026
18.7%Verified-email coverage
11.6%Mobile-number coverage
7.0Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · London
Sep 2, 2026Page data refreshed

Companies by employee count

1-10
20,087
11-50
5,741
51-200
774
201-500
110
501-1,000
19
1,001-5,000
7
5,001-10,000
4
10001+
7

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 enterprise SEO 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
39 countries, largest first: the United States, the United Kingdom, France, Canada, Spain, Germany, Australia, the Netherlands, Brazil, Italy and 29 more. Country and city lists for enterprise SEO agencies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “enterprise SEO 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 enterprise SEO 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 enterprise SEO 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, 35,471 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 2, 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.

Enterprise SEO agencies by location

97 lists · largest first

Every Enterprise SEO 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 enterprise SEO 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 enterprise SEO agencies are there worldwide?

RevenueBase identified 26,927 enterprise SEO 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?

SEO, headquartered in Melbourne, tops this list with the largest team on record.

Which country has the most enterprise SEO agencies?

The United States leads with 9,866 companies, followed by the United Kingdom (3,422) and France (1,573). Every enterprise SEO agencies list by country and city is linked on this page.

Which city has the most enterprise SEO agencies?

London leads with 911 headquartered companies, followed by New York (377) and Paris (324).

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 35,471 verified decision-maker contacts tracked across these 26,927 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 2, 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.