Company lists · Data refreshed September 2026

Top 25 Search engine optimization software companies worldwide

Name: Search engine optimization software companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 13,313 companies tracked

RevenueBase identified 13,313 search engine optimization software companies worldwide as of September 2026 and tracks 105,585 professional contacts across them, including 9,098 with verified work emails. The United States is the largest market and London the largest hub.

This list covers search engine optimization software companies 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 29, 2026. Country and city lists for search engine optimization software companies 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 29, 2026 86% judged on-target in blind review

13,313Companies

105,585Contacts tracked

9,098Verified emails

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The 25 largest search engine optimization software companies worldwide

Ranked by team size

Top 25 of 13,313 search engine optimization software companies worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to search engine optimization software companies: 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	SEO INC	Indirect evidence	Carlsbad, CA, United StatesHQ checked Sep 29, 2026	n/a	825 contacts →
	Indirect evidence “Since its inception in 1997, SEO Inc.” Source: RevenueBase Database · checked Sep 29, 2026
2	Imark Infotech Pvt. LTD	Indirect evidence	Chandigarh, IndiaHQ checked Sep 29, 2026	201-500	629 contacts →
	Indirect evidence “With a vision of delivering innovative solutions through cutting-edge technology, Mr.” Source: RevenueBase Database · checked Sep 29, 2026
3	Wildnet Technologies	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	590 contacts →
	Indirect 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 29, 2026
4	KPL Tech Solution Pvt. LTD	Indirect evidence	Middletown, DE, United StatesHQ checked Sep 29, 2026	201-500	390 contacts →
	Indirect evidence “Do you want to see your business on heights?” Source: RevenueBase Database · checked Sep 29, 2026
5	Boostability	Indirect evidence	Lehi, UT, United StatesHQ checked Sep 29, 2026	201-500	326 contacts →
	Indirect 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 29, 2026
6	Clearpath Technology PVT LTD	Strong evidence	New Delhi, IndiaHQ checked Sep 29, 2026	501-1,000	300 contacts →
	Strong 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 29, 2026
7	MOZ	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 29, 2026	51-200	219 contacts →
	Partial evidence “Marketing Analytics Software for SEO, Links, and Brand • A Vibrant Online Marketing Community • Resources for Learning Inbound Marketing Moz develops inbound marketing software…” Source: RevenueBase Database · checked Sep 29, 2026
8	Awesome Motive, INC	Indirect evidence	West Palm Beach, FL, United StatesHQ checked Sep 29, 2026	201-500	206 contacts →
	Indirect evidence “We are the people behind WPBeginner, OptinMonster, MonsterInsights, WPForms, SeedProd, Smash Balloon, All In One SEO, PushEngage & more.” Source: RevenueBase Database · checked Sep 29, 2026
9	Ahrefs	Partial evidence	SingaporeHQ checked Sep 29, 2026	51-200	174 contacts →
	Partial evidence “Ahrefs is the marketing platform built to keep your brand discoverable across search, AI, and the web.” Source: RevenueBase Database · checked Sep 29, 2026
10	Brightlocal	Partial evidence	Brighton And Hove, United KingdomHQ checked Sep 29, 2026	51-200	173 contacts →
	Partial evidence “BrightLocal offers local SEO software and services that help businesses get found, chosen, and trusted in their local area.” Source: RevenueBase Database · checked Sep 29, 2026
11	WP SEO AI	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 29, 2026	51-200	166 contacts →
	Partial 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 29, 2026
12	Liveseo	Strong evidence	Maringá, BrazilHQ checked Sep 29, 2026	51-200	141 contacts →
	Strong 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 29, 2026
13	MOPRO	Partial evidence	Newport Beach, CA, United StatesHQ checked Sep 29, 2026	51-200	134 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026
14	Essentials The Agency	Indirect evidence	Jakarta Barat, IndonesiaHQ checked Sep 29, 2026	11-50	134 contacts →
	Indirect evidence “At essentials the agency, we help brands take control of their digital presence and dominate their online space, not just exist in it.” Source: RevenueBase Database · checked Sep 29, 2026
15	Dealeron	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	201-500	129 contacts →
	Indirect evidence “DealerOn has been the perfect partner for over dealers across North America.” Source: RevenueBase Database · checked Sep 29, 2026
16	Semalt	Indirect evidence	Kyiv, UkraineHQ checked Sep 29, 2026	51-200	127 contacts →
	Indirect evidence “Semalt is a results-driven, technology-inspired SEO company.” Source: RevenueBase Database · checked Sep 29, 2026
17	FIX Group Of Companies	Indirect evidence	Mesa Geitonia, CyprusHQ checked Sep 29, 2026	501-1,000	126 contacts →
	Indirect evidence “FIX - профессиональная компания, оказывающая полный спектр услуг в области интернет-маркетинга: разработка web-ресурсов и web-приложений, поисковая оптимизация и продвижение…” Source: RevenueBase Database · checked Sep 29, 2026
18	SEOP	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	121 contacts →
	Strong evidence “SEOP is one of the leaders in the Search Engine Optimization industry and was co-founded by SEO experts that thrive on a combination of in-depth expertise and creative, forward…” Source: RevenueBase Database · checked Sep 29, 2026
19	Leavecode Technologies	Indirect evidence	Bijnor, IndiaHQ checked Sep 29, 2026	51-200	118 contacts →
	Indirect evidence “Leave Code offers you the best digital marketing services for your products and services.” Source: RevenueBase Database · checked Sep 29, 2026
20	Seobrothers	Strong evidence	Skanste, LatviaHQ checked Sep 29, 2026	51-200	116 contacts →
	Strong evidence “SEOBROTHERS is a full-cycle SEO agency where search engine optimisation and digital marketing drive everything we do.” Source: RevenueBase Database · checked Sep 29, 2026
21	CGS Infotech Solutions	Indirect evidence	Tampa, FL, United StatesHQ checked Sep 29, 2026	501-1,000	115 contacts →
	Indirect evidence “CGS Infotech is a global Information Technology & Media company serving over thousand customers in 40 countries since 1995.” Source: RevenueBase Database · checked Sep 29, 2026
22	G-Rank	Indirect evidence	Hyderabad, IndiaHQ checked Sep 29, 2026	51-200	114 contacts →
	Indirect evidence “G-Rank an ISO 9001:2008 certified company is established in the year 2010 and now it is a leading Digital Marketing Company that is authorized by Google.” Source: RevenueBase Database · checked Sep 29, 2026
23	Studiohawk	Partial evidence	Melbourne, AustraliaHQ checked Sep 29, 2026	51-200	111 contacts →
	Partial evidence “StudioHawk is Australia’s #1 dedicated SEO & AI Search agency.” Source: RevenueBase Database · checked Sep 29, 2026
24	Grizzly NEW Marketing	Indirect evidence	Breda, NetherlandsHQ checked Sep 29, 2026	51-200	109 contacts →
	Indirect evidence “Grizzly New Marketing is een gespecialiseerd SEO marketingbureau in Nederland (Breda en Rotterdam), België (Antwerpen-Berchem) en de Verenigde Staten (New York).” Source: RevenueBase Database · checked Sep 29, 2026
25	Bigseo	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	51-200	108 contacts →
	Indirect evidence “En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Source: RevenueBase Database · checked Sep 29, 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: search engine optimization software companies. 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 search engine optimization software companies.
Partial evidence: Its own public description names part of search engine optimization software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name search engine optimization software companies. 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 13,313 search engine optimization software companies worldwide

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Search engine optimization software companies worldwide at a glance

As of Sep 29, 2026

8.6%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

9,589

11-50

2,988

51-200

529

201-500

102

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 search engine optimization software companies, 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 search engine optimization software companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “search engine optimization software companies”. 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 search engine optimization software companies), 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 search engine optimization software companies, 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, 9,098 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 29, 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.

Search engine optimization software companies by location

57 lists · largest first

Every Search engine optimization software companies 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 search engine optimization software companies, 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 search engine optimization software companies are there worldwide?

RevenueBase identified 13,313 search engine optimization software companies 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 INC, headquartered in Carlsbad, tops this list with the largest team on record.

Which country has the most search engine optimization software companies?

The United States leads with 2,804 companies, followed by India (1,537) and the United Kingdom (850). Every search engine optimization software companies list by country and city is linked on this page.

Which city has the most search engine optimization software companies?

London leads with 258 headquartered companies, followed by New Delhi (142) and New York (119).

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 9,098 verified decision-maker contacts tracked across these 13,313 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 29, 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.