Company lists · Data refreshed September 2026

Top 25 B2B SaaS SEO agencies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 14,267 companies tracked

RevenueBase identified 14,267 B2B SaaS SEO agencies worldwide as of September 2026 and tracks 119,294 professional contacts across them, including 15,958 with verified work emails. The United States is the largest market and London the largest hub.

This list covers B2B SaaS 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 21, 2026. Country and city lists for B2B SaaS 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

14,267Companies

119,294Contacts tracked

15,958Verified emails

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The 25 largest B2B SaaS SEO agencies worldwide

Ranked by team size

Top 25 of 14,267 B2B SaaS SEO agencies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to B2B SaaS 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	2x	Partial evidence	Malvern, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,046 contacts →
	Partial evidence “2X is the global leader in B2B marketing-as-a-service (MaaS), a subscription-based alternative to traditional B2B marketing delivery models.” Source: RevenueBase Database · checked Sep 21, 2026
2	SEO INC	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 21, 2026	n/a	825 contacts →
	Partial evidence “Since its inception in 1997, SEO Inc.” Source: RevenueBase Database · checked Sep 21, 2026
3	411 Locals	Indirect evidence	Las Vegas, United StatesHQ checked Sep 21, 2026	201-500	687 contacts →
	Indirect evidence “About Us 411 Locals is an award-winning digital marketing agency dedicated to driving growth for US-based small and medium-sized businesses (SMBs).” Source: RevenueBase Database · checked Sep 21, 2026
4	Digital WEB Solutions	Indirect evidence	United StatesHQ checked Sep 21, 2026	501-1,000	623 contacts →
	Indirect evidence “Digital Web Solutions is a global name in the digital marketing space.” Source: RevenueBase Database · checked Sep 21, 2026
5	Multiview	Partial evidence	Irving, TX, United StatesHQ checked Sep 21, 2026	501-1,000	616 contacts →
	Partial evidence “Multiview is a B2B digital marketing agency helping associations and businesses reach, engage and grow their most valued relationships.” Source: RevenueBase Database · checked Sep 21, 2026
6	Wildnet Technologies	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 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 21, 2026
7	Smart Solutions	Indirect evidence	United StatesHQ checked Sep 21, 2026	n/a	534 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
8	KPL Tech Solution Pvt. LTD	Indirect evidence	Middletown, DE, United StatesHQ checked Sep 21, 2026	201-500	390 contacts →
	Indirect evidence “Do you want to see your business on heights?” Source: RevenueBase Database · checked Sep 21, 2026
9	Inventive SMI	Indirect evidence	IndiaHQ checked Sep 21, 2026	201-500	339 contacts →
	Indirect evidence “Inventive SMi was founded in 2008 with the goal of providing enterprise-grade communications solutions to businesses of all sizes.” Source: RevenueBase Database · checked Sep 21, 2026
10	Boostability	Partial evidence	Lehi, UT, United StatesHQ checked Sep 21, 2026	201-500	326 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 21, 2026
11	Coalition Technologies	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 21, 2026	201-500	320 contacts →
	Partial evidence “Coalition Technologies is one of the leading SEO & web design agencies in the United States.” Source: RevenueBase Database · checked Sep 21, 2026
12	Stan Ventures	Indirect evidence	Lake Bluff, IL, United StatesHQ checked Sep 21, 2026	201-500	319 contacts →
	Indirect evidence “We run the link-building operation behind a lot of agencies you've probably heard of.” Source: RevenueBase Database · checked Sep 21, 2026
13	Clearpath Technology PVT LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 21, 2026	501-1,000	300 contacts →
	Indirect evidence “Clearpath Technology is managed and owned by dedicated and highly experienced team comprising of:* Internet Marketers * Search Engine Optimizers * Web Designers * Web Developers *…” Source: RevenueBase Database · checked Sep 21, 2026
14	TSL Marketing	Strong evidence	Elkridge, MD, United StatesHQ checked Sep 21, 2026	201-500	253 contacts →
	Strong evidence “TSL Marketing provides lead generation, SEO, Website, Content, Channel Marketing and HubSpot agency services to MSPs, IT companies, IT Services firms, and SaaS firms.” Source: RevenueBase Database · checked Sep 21, 2026
15	Alltake	Strong evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	245 contacts →
	Strong evidence “Alltake is the go-to marketing agency for B2B SaaS brands striving with their GTM activities.” Source: RevenueBase Database · checked Sep 21, 2026
16	GROW	Partial evidence	Jerusalem, IsraelHQ checked Sep 21, 2026	n/a	230 contacts →
	Partial evidence “GROW is a full-service marketing agency passionate about helping B2B companies achieve their goals.” Source: RevenueBase Database · checked Sep 21, 2026
17	Walker Sands	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	201-500	199 contacts →
	Partial evidence “Walker Sands is an integrated B2B growth services agency with expertise in strategy, data, content, creative, strategic communications, digital marketing and RevOps.” Source: RevenueBase Database · checked Sep 21, 2026
18	Herold	Indirect evidence	Vienna, AustriaHQ checked Sep 21, 2026	51-200	190 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 21, 2026
19	That Company	Indirect evidence	Leesburg, FL, United StatesHQ checked Sep 21, 2026	n/a	187 contacts →
	Indirect evidence “That Company is a White Label internet marketing firm with over 15 years of experience and a strong customer service core.” Source: RevenueBase Database · checked Sep 21, 2026
20	Channel Technologies Private Limited	Indirect evidence	Noida, IndiaHQ checked Sep 21, 2026	51-200	168 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
21	V Digital Services	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 21, 2026	201-500	152 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 21, 2026
22	Cloudmellow	Indirect evidence	Frisco, TX, United StatesHQ checked Sep 21, 2026	51-200	151 contacts →
	Indirect evidence “CloudMellow is a tech-driven, full-scale digital marketing agency with a proven track record in transforming businesses across the globe through thoughtful and innovative…” Source: RevenueBase Database · checked Sep 21, 2026
23	TACO	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	11-50	147 contacts →
	Indirect evidence “Taco builds agentic workflows with search expertise to drive outsized growth outcomes for our customers.” Source: RevenueBase Database · checked Sep 21, 2026
24	Demand Media BPM LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	144 contacts →
	Strong evidence “Demand Media specializes in a wide range of data driven B2B marketing services geared towards promoting SaaS offerings.” Source: RevenueBase Database · checked Sep 21, 2026
25	Liveseo	Partial evidence	Maringá, BrazilHQ checked Sep 21, 2026	51-200	141 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 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: B2B SaaS SEO 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 B2B SaaS SEO agencies.
Partial evidence: Its own public description names part of B2B SaaS SEO agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name B2B SaaS SEO 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 14,267 B2B SaaS SEO agencies worldwide

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B2B SaaS SEO agencies worldwide at a glance

As of Sep 21, 2026

13.4%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

10,218

11-50

3,336

51-200

530

201-500

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among B2B SaaS 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: Every country. Country and city lists for B2B SaaS SEO agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “B2B SaaS 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 B2B SaaS 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 B2B SaaS 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, 15,958 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 21, 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.

B2B SaaS SEO agencies by location

68 lists · largest first

Every B2B SaaS 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 B2B SaaS 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 B2B SaaS SEO agencies are there worldwide?

RevenueBase identified 14,267 B2B SaaS 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?

2x, headquartered in Malvern, tops this list with the largest team on record.

Which country has the most B2B SaaS SEO agencies?

The United States leads with 3,299 companies, followed by India (1,424) and the United Kingdom (1,121). Every B2B SaaS SEO agencies list by country and city is linked on this page.

Which city has the most B2B SaaS SEO agencies?

London leads with 353 headquartered companies, followed by New York (143) and Toronto (117).

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 15,958 verified decision-maker contacts tracked across these 14,267 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 21, 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.