Company lists · Data refreshed September 2026

Top 25 B2B SEO firms worldwide

Name: B2B SEO firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 21,140 companies tracked

RevenueBase identified 21,140 company matches for B2B SEO firms worldwide as of September 2026 and tracks 139,047 professional contacts across them, including 15,814 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for B2B SEO firms 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 September 21, 2026. Country and city lists for B2B SEO firms 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 Sep 21, 2026 How this list was built

21,140Companies

139,047Contacts tracked

15,814Verified emails

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The 25 largest B2B SEO firms worldwide

Ranked by team size

Top 25 of 21,140 company matches for B2B SEO firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	SEO INC	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 21, 2026	n/a	825 contacts →
	Exact match “Since its inception in 1997, SEO Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	411 Locals	Exact match	Las Vegas, United StatesHQ recorded Sep 21, 2026	201-500	687 contacts →
	Exact match “About Us 411 Locals is an award-winning digital marketing agency dedicated to driving growth for US-based small and medium-sized businesses (SMBs).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Wildnet Technologies	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	590 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Clickout Media	Exact match	Naxxar, MaltaHQ recorded Sep 21, 2026	201-500	463 contacts →
	Exact match “ClickOut Media is an remote first, industry leading, multichannel marketing company, delivering best in class SEO & content for esteemed clients all over the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Seoclerks	Exact match	United StatesHQ recorded Sep 21, 2026	n/a	445 contacts →
	Exact match “The largest SEO Marketplace on the web with SEO experts from every inch of the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Ebrandz LLP	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	201-500	428 contacts →
	Exact match “Within a short span, eBrandz has seen enormous growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	KPL Tech Solution Pvt. LTD	Exact match	Middletown, DE, United StatesHQ recorded Sep 21, 2026	201-500	390 contacts →
	Exact match “Do you want to see your business on heights?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Boostability	Exact match	Lehi, UT, United StatesHQ recorded Sep 21, 2026	201-500	326 contacts →
	Exact match “At Boostability, we're more than just an SEO company; we're your strategic partner in driving online growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Coalition Technologies	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	201-500	320 contacts →
	Exact match “Coalition Technologies is one of the leading SEO & web design agencies in the United States.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Techwyse Internet Marketing	Exact match	Toronto, ON, CanadaHQ recorded Sep 21, 2026	51-200	233 contacts →
	Exact match “If your business isn't generating consistent leads online, the problem usually is your digital presence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	GROW	Exact match	Jerusalem, IsraelHQ recorded Sep 21, 2026	n/a	230 contacts →
	Exact match “GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Walker Sands	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	201-500	199 contacts →
	Exact match “Walker Sands is an integrated B2B growth services agency with expertise in strategy, data, content, creative, strategic communications, digital marketing and RevOps.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Herold	Exact match	Vienna, AustriaHQ recorded Sep 21, 2026	51-200	190 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	That Company	Exact match	Leesburg, FL, United StatesHQ recorded Sep 21, 2026	n/a	187 contacts →
	Exact match “That Company is a White Label internet marketing firm with over 15 years of experience and a strong customer service core.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Channel Technologies Private Limited	Exact match	Noida, IndiaHQ recorded Sep 21, 2026	51-200	168 contacts →
	Exact match “Founded in 1998, Channel Technologies (CT) began with a mission to offer marketing, technology, and management consulting services-with a core strength in building and managing…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Futur Digital	Exact match	Boulogne-billancourt, FranceHQ recorded Sep 21, 2026	201-500	163 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Gr0	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 21, 2026	51-200	157 contacts →
	Exact match “At GR0, we are in the business of helping businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Brandrep	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	152 contacts →
	Exact match “Local Marketing Company who specializes in helping small businesses with building and managing their online presence through Local SEO, Lead Generation, Local Directory submission…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	SKS Tech Solution	Exact match	Noida, IndiaHQ recorded Sep 21, 2026	51-200	148 contacts →
	Exact match “Welcome to SKS TECH SOLUTION, your number one shop for all things Digital Marketing Services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Liveseo	Exact match	Maringá, BrazilHQ recorded Sep 21, 2026	51-200	141 contacts →
	Exact match “Founded in 2016 in Spain, and currently operating in Brazil, liveSEO performs consistent and well-targeted work in SEO (search engine optimization), attracting companies looking…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Publicis PRO	Exact match	London, United KingdomHQ recorded Sep 21, 2026	51-200	139 contacts →
	Exact match “Publicis Pro is the specialist B2B marketing agency within Publicis Groupe, the world's number one marketing holding group.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Blushark Digital	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	137 contacts →
	Exact match “BluShark Digital LLC was founded on the principle of providing high quality online marketing solutions for companies struggling to stand out online.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	National Positions	Exact match	Westlake Village, CA, United StatesHQ recorded Sep 21, 2026	51-200	137 contacts →
	Exact match “National Positions, The Digital Growth Agency, is a 360-degree digital marketing firm located in Southern California.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	MOPRO	Exact match	Newport Beach, CA, United StatesHQ recorded Sep 21, 2026	51-200	134 contacts →
	Exact match “Mopro gives small businesses a website designed to convert, and the A.I-powered tools they need to claim a top spot in search results and win more customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Essentials The Agency	Exact match	Jakarta Barat, IndonesiaHQ recorded Sep 21, 2026	11-50	134 contacts →
	Exact match “At essentials the agency, we help brands take control of their digital presence and dominate their online space, not just exist in it.” Recorded in the RevenueBase company graph · Sep 21, 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 “B2B SEO firms”. 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 21,140 B2B SEO firms worldwide

See the full list, filter by size, metro and specialty, and access 15,814 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B SEO firms worldwide at a glance

As of Sep 21, 2026

11.4%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

15,340

11-50

4,776

51-200

752

201-500

144

501-1,000

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 B2B SEO firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “B2B SEO firms” 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 15,814 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 September 21, 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.

B2B SEO firms by location

87 lists · largest first

Every B2B SEO firms 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 “B2B SEO firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B SEO firms are there worldwide?

RevenueBase identified 21,140 company matches for B2B SEO firms worldwide as of September 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?

SEO INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most B2B SEO firms?

The United States leads with 5,083 companies, followed by India (2,545) and the United Kingdom (1,368). Every B2B SEO firms list by country and city is linked on this page.

Which city has the most B2B SEO firms?

London leads with 359 company records, followed by New Delhi (243) and New York (188).

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 15,814 professional contacts with verified work emails tracked across these 21,140 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 September 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 21,140 B2B SEO firms worldwide. 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 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.