Company lists · Data refreshed September 2026

Top 25 International SEO software companies worldwide

RevenueBase identified 3,778 international SEO software companies worldwide as of September 2026 and tracks 24,992 professional contacts across them, including 3,576 with verified work emails. The United States is the largest market and London the largest hub.

This list covers international SEO 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 28, 2026. Country and city lists for international SEO 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 28, 2026 86% judged on-target in blind review
3,778Companies
24,992Contacts tracked
3,576Verified emails
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The 25 largest international SEO software companies worldwide

Ranked by team size
Top 25 of 3,778 international SEO software companies worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to international SEO 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChandigarh, IndiaHQ checked Sep 28, 2026201-500629 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500590 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 28, 2026
3Partial evidenceNaxxar, MaltaHQ checked Sep 28, 2026201-500463 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 28, 2026
4Partial evidenceLehi, UT, United StatesHQ checked Sep 28, 2026201-500326 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 28, 2026
5Indirect evidenceNew Delhi, IndiaHQ checked Sep 28, 2026501-1,000300 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 28, 2026
6Strong evidenceVancouver, BC, CanadaHQ checked Sep 28, 202651-200219 contacts →

Strong 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 28, 2026
7Indirect evidenceSingaporeHQ checked Sep 28, 202651-200174 contacts →

Indirect evidence

“Ahrefs is the marketing platform built to keep your brand discoverable across search, AI, and the web.”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceBrighton And Hove, United KingdomHQ checked Sep 28, 202651-200173 contacts →

Strong 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 28, 2026
9Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 28, 202651-200166 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 28, 2026
10Partial evidenceMaringá, BrazilHQ checked Sep 28, 202651-200141 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 28, 2026
11Partial evidenceKyiv, UkraineHQ checked Sep 28, 202651-200127 contacts →

Partial evidence

“Semalt is a results-driven, technology-inspired SEO company.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceBijnor, IndiaHQ checked Sep 28, 202651-200118 contacts →

Indirect evidence

“Leave Code offers you the best digital marketing services for your products and services.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceChiayi City, TaiwanHQ checked Sep 28, 202651-200106 contacts →

Partial evidence

“awoo Intelligence AI AI SEO AI SEO AI AI Marketing PlatformAI GEOGenerative Engine Optimization AI awoo AI AI Agent IDC Fashion EC Awards Plug and Play Japan SparkLabs Taiwan awoo…”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200105 contacts →

Strong evidence

“SEOmoz is the world’s most popular provider of SEO software.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceMontpellier, FranceHQ checked Sep 28, 202651-200100 contacts →

Partial evidence

“Founded in 2004, JVWEB is a leading digital marketing agency in France and in Europe, managing SEO, SEA (Search Engine Adverising), SMA (Social Media Advertising) and Performance…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceGhaziabad, IndiaHQ checked Sep 28, 202651-200100 contacts →

Indirect evidence

“Stop chasing algorithms.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceChennai, IndiaHQ checked Sep 28, 202651-20094 contacts →

Indirect evidence

“Algoritz is the next generation Internet marketing firm growing in a rapid speed ever since it was started in the Year 2010.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceOrlando, FL, United StatesHQ checked Sep 28, 202651-20089 contacts →

Partial evidence

“SeoProfy is your strategic SEO and AI visibility partner for organic and AI visibility that brings real ROI.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceYerevan, ArmeniaHQ checked Sep 28, 202611-5088 contacts →

Indirect evidence

“Who are we?”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceDubai, United Arab EmiratesHQ checked Sep 28, 202651-20080 contacts →

Partial evidence

“Winner of the Global Search Awards Best Large SEO Agency 2023, Clutch Global Top SEO Firm 2023, MENA Search Awards Best Large SEO Agency 2024, 2023, 2022, 2020, and 2018.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceOdesa, UkraineHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

“Serpstat is the go-to platform to speed up search marketing goals achievement.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceBerlin, GermanyHQ checked Sep 28, 202651-20077 contacts →

Strong evidence

“Wir sind eine mehrfach ausgezeichnete Agentur für internationales SEO, GEO und Content Marketing mit Sitz in Berlin.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5077 contacts →

Indirect evidence

“At MediaVision, we believe there's potential hidden in every search.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceKraków, PolandHQ checked Sep 28, 202651-20076 contacts →

Strong evidence

“We’re an international Search Agency: SEO+ SEM +AI.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceParis, FranceHQ checked Sep 28, 202651-20075 contacts →

Indirect evidence

“Weglot is a French SaaS scale-up that makes website translation possible within minutes.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,778 international SEO software companies worldwide

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International SEO software companies worldwide at a glance

As of Sep 28, 2026
14.3%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
2.0%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,499
11-50
990
51-200
215
201-500
37
501-1,000
12
1,001-5,000
7
10001+
4

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 international SEO 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 international SEO software companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “international SEO 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 international SEO 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 international SEO 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, 3,576 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 28, 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.

International SEO software companies by location

16 lists · largest first

Every International SEO 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 international SEO 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 international SEO software companies are there worldwide?

RevenueBase identified 3,778 international SEO 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?

Imark Infotech Pvt. LTD, headquartered in It Park Chandigarh, tops this list with the largest team on record.

Which country has the most international SEO software companies?

The United States leads with 633 companies, followed by India (441) and the United Kingdom (261). Every international SEO software companies list by country and city is linked on this page.

Which city has the most international SEO software companies?

London leads with 74 headquartered companies, followed by New Delhi (44) and New York (39).

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 3,576 verified decision-maker contacts tracked across these 3,778 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 28, 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.