Company lists · Data refreshed November 2026

Top 25 SEO audit tool vendors worldwide

RevenueBase identified 1,399 company matches for SEO audit tool vendors worldwide as of November 2026 and tracks 39,242 professional contacts across them, including 1,052 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for SEO audit tool vendors 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 November 5, 2026. Country and city lists for SEO audit tool vendors 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 Nov 5, 2026 How this list was built
1,399Companies
39,242Contacts tracked
1,052Verified emails
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The 25 largest SEO audit tool vendors worldwide

Ranked by team size
Top 25 of 1,399 company matches for SEO audit tool vendors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAmsterdam, NetherlandsHQ recorded Nov 5, 202651-200232 contacts →

Exact match

“WP SEO AI started in 2023 as three founders solving their own SEO challenges.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchSingaporeHQ recorded Nov 5, 202651-200176 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchKyiv, UkraineHQ recorded Nov 5, 202651-200141 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSeattle, WA, United StatesHQ recorded Nov 5, 202651-200107 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchYerevan, CA, ArmeniaHQ recorded Nov 5, 202651-20094 contacts →

Exact match

“Who are we?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchOdesa, UkraineHQ recorded Nov 5, 202651-20075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchAustin, United StatesHQ recorded Nov 5, 202651-20068 contacts →

Exact match

“Silktide makes software to understand and improve websites, covering accessibility, SEO, UX, data privacy, and more.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchChicago, IL, United StatesHQ recorded Nov 5, 202651-20062 contacts →

Exact match

“seoClarity is an enterprise search intelligence platform that merges SEO and AI search optimization to keep global brands visible across a fragmented search landscape.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact match港区, JapanHQ recorded Nov 5, 202651-20062 contacts →

Exact match

“Web Merketing Tools & Services.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchBonn, GermanyHQ recorded Nov 5, 202611-5058 contacts →

Exact match

“We believe SEO doesn't have to be mysterious.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchAltadena, CA, United StatesHQ recorded Nov 5, 202611-5058 contacts →

Exact match

“Your AI-powered SEO Co-Pilot Summary: Scalenut is an AI-powered SEO platform that helps businesses drive organic traffic and build sustainable businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchBeaumaris, AustraliaHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Established in 1997, Trillion (formerly Trellian) pioneered in web-based, self-serve SEO tools.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchHai Chau, VietnamHQ recorded Nov 5, 202651-20054 contacts →

Exact match

“TopOnSeek cung cấp các dịch vụ SEO toàn diện cho website của bạn, trong đó bao gồm dịch vụ: 1.Auditing/Kiểm tra lỗi SEO và Kèm giải pháp xử lý, 2.Tư vấn chiến lược SEO - Nghiên…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchSheridan, WY, United StatesHQ recorded Nov 5, 202651-20048 contacts →

Exact match

“WEBCEO LLC, founded in produces the world-famous WebCEO SEO Platform with 24 tools and white-label functionality.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchHenley-on-thames, United KingdomHQ recorded Nov 5, 202611-5047 contacts →

Exact match

“Screaming Frog is a search marketing agency drawing on years of experience from within the world of digital marketing.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchMérignac, FranceHQ recorded Nov 5, 202651-20043 contacts →

Exact match

“Oncrawl is a technical SEO data provider.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchGurgaon, IndiaHQ recorded Nov 5, 202651-20040 contacts →

Exact match

“RankWatch is globally recognized as one of the most prestigious names in the Digital Marketing industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchAnglet, FranceHQ recorded Nov 5, 202611-5036 contacts →

Exact match

“Première.page is an agency that has specialised in natural referencing for 10 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchWarsaw, CA, PolandHQ recorded Nov 5, 202611-5035 contacts →

Exact match

“Senuto is a SaaS-based SEO analytics platform and know-how consultancy that delivers data to help you easily improve your search engine ranking through data-driven content…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBrighton, United KingdomHQ recorded Nov 5, 202651-20033 contacts →

Exact match

“Pi Datametrics is the enterprise SEO and search intelligence platform built for the AI era of search.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLiège, BelgiumHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“eTeamsys is a search engine optimization company located in Luxembourg and Belgium that will bring you better rankings in search engine result pages, increase your traffic…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchBratislava, SlovakiaHQ recorded Nov 5, 202611-5032 contacts →

Exact match

“Mangools is an All-in-One SEO toolset suitable for business owners, marketers, bloggers & agencies, covering everything from Keyword research - SERP analysis - Rank tracking -…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSector 2, RomaniaHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“SEOmonitor is the platform that empowers SEO agencies to plan and track keyword performance with high accuracy, connect organic keywords with conversions and sessions, forecast…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchAarhus C, DenmarkHQ recorded Nov 5, 202611-5029 contacts →

Exact match

“AccuRanker is the fastest and most accurate rank tracker and LLM visibility tool for agencies and enterprises.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchLondon, NY, United KingdomHQ recorded Nov 5, 202611-5028 contacts →

Exact match

“SearchPilot helps large retailers discover what works in GEO, AI discovery, and organic search.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,399 SEO audit tool vendors worldwide

See the full list, filter by size, metro and specialty, and access 1,052 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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SEO audit tool vendors worldwide at a glance

As of Nov 5, 2026
2.7%Verified-email coverage
28.1Average contacts per company
1-10Median size (employees)
1.9%Largest-city concentration · Paris
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,065
11-50
255
51-200
47
201-500
10
501-1,000
5
1,001-5,000
2
5,001-10,000
1
10001+
1

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 SEO audit tool vendors are linked below.
What qualifies
Company records worldwide whose business descriptions match “SEO audit tool vendors” 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 1,052 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 November 5, 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.

SEO audit tool vendors by location

4 lists · largest first

Every SEO audit tool vendors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “SEO audit tool vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many SEO audit tool vendors are there worldwide?

RevenueBase identified 1,399 company matches for SEO audit tool vendors worldwide as of November 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?

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

Which country has the most SEO audit tool vendors?

The United States leads with 246 companies, followed by India (102) and France (83). Every SEO audit tool vendors list by country and city is linked on this page.

Which city has the most SEO audit tool vendors?

Paris leads with 26 company records, followed by London (24) and New York (17).

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 1,052 professional contacts with verified work emails tracked across these 1,399 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 November 5, 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 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.