Company lists · Data refreshed September 2026
Top 25 Online classified ad sites worldwide
RevenueBase identified 1,779 online classified ad sites worldwide as of September 2026 and tracks 51,964 professional contacts across them, including 6,522 with verified work emails. The United States is the largest market and Dubai the largest hub.
This list covers online classified ad sites 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 20, 2026. Country and city lists for online classified ad sites 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.
The 25 largest online classified ad sites worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,826 contacts → | ||||
Strong evidence “Info Edge, India’s premier online classifieds company is fundamentally in the matching business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,810 contacts → | ||||
Partial evidence “Avito is the most popular classifieds site in Russia and is the biggest classifieds site in the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,553 contacts → | ||||
Indirect evidence “At OLX, we build leading AI-first marketplace ecosystems, powered by trust and loved by customers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,588 contacts → | ||||
Partial evidence “Quikr, which now operates leading transaction marketplaces built on top of India’s largest classifieds platform, is India’s largest platform that is used by over 30 million unique…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,327 contacts → | ||||
Indirect evidence “Aksoy Group bünyesinde yılında kurulan sahibinden.com, teknoloji merkezinde geliştirdiği yenilikçi ürün ve hizmetlerle Türkiye’nin lider teknoloji şirketlerinden biri olmaya devam…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,134 contacts → | ||||
Strong evidence “Adevinta is a leading online classifieds group and champion for sustainable commerce across Europe and beyond.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 867 contacts → | ||||
Indirect evidence “One of the world’s biggest Consumer-Driven Platform!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 744 contacts → | ||||
Partial evidence “eBay is one of the world’s largest online marketplaces, connecting people with the things they need and love virtually anytime, anywhere.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 676 contacts → | ||||
Indirect evidence “Trade Me is New Zealand’s most influential ecommerce platform and as quintessentially Kiwi as you can get.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 653 contacts → | ||||
Indirect evidence “At carsales, we’re all about making buying and selling a great experience.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 554 contacts → | ||||
Indirect evidence “Welcome to Karrot - your community super app from Korea!” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 543 contacts → | ||||
Partial evidence “Welcome to SMG Swiss Marketplace Group We are a pioneering network of online marketplaces and a cutting-edge digital company that simplifies people’s lives with innovative…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 512 contacts → | ||||
Indirect evidence “dubizzle is the UAE'S favorite marketplace to buy, sell and find anything.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 481 contacts → | ||||
Partial evidence “Dubizzle Group, the #1 Classifieds platform in MENA, owns and operates digital classifieds portals across 8 countries in the region with over 54 million monthly visits.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 462 contacts → | ||||
Strong evidence “Kleinanzeigen is a free online classifieds market that brings the joy of sustainable trade to everyone.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 415 contacts → | ||||
Indirect evidence “Wallapop is the leading platform for conscious and humane consumption in Spain.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 400 contacts → | ||||
Partial evidence “OpenSooq is the leading mobile-first classifieds marketplace in the Middle East and North Africa region.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 388 contacts → | ||||
Strong evidence “OLX, as a subsidiary of Astra Group is the largest online classifieds site in Indonesia, plays a pivotal role in connecting sellers and buyers across a diverse spectrum of…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 378 contacts → | ||||
Partial evidence “Everything But The House (EBTH) is a premier online auction marketplace offering a seamless, fully authenticated experience for buying and selling secondhand goods.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 353 contacts → | ||||
Partial evidence “OLX India is a leading classifieds platform, boasting over 100+ million app downloads across diverse categories, including cars, bikes, real estate, and electronics.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 348 contacts → | ||||
Indirect evidence “OfferUp is on a mission to unleash the power of local.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 344 contacts → | ||||
Indirect evidence “Subito è l'azienda n.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 335 contacts → | ||||
Indirect evidence “Nesten alle i Norge prøvd FINN.no Hvert år tilbringer hver nordmann i snitt 30 timer på tjenesten vår, og til sammen surfer brukerne våre gjennom mer enn 15 milliarder sider.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 271 contacts → | ||||
Indirect evidence “ikman (ඉක්මන්) is derived from the sinhala word "fast" or "quick" and is our signature style of offering exceptional buying/ selling experience to our consumers.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 268 contacts → | ||||
Partial evidence “Established in 2005, Yad2 is the #1 classified platform in Israel.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: online classified ad sites. 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 online classified ad sites.
- Partial evidence
- Its own public description names part of online classified ad sites, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name online classified ad sites. 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 1,779 online classified ad sites worldwide
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Online classified ad sites worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 online classified ad sites, 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 online classified ad sites are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “online classified ad sites”. 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 online classified ad sites), 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 online classified ad sites, 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, 6,522 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 20, 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.
Online classified ad sites by location
3 lists · largest firstEvery Online classified ad sites 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 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 online classified ad sites, 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 online classified ad sites are there worldwide?
RevenueBase identified 1,779 online classified ad sites 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?
Info Edge India LTD, headquartered in Uttar, tops this list with the largest team on record.
Which country has the most online classified ad sites?
The United States leads with 131 companies, followed by the United Kingdom (43) and Germany (39). Every online classified ad sites list by country and city is linked on this page.
Which city has the most online classified ad sites?
Dubai leads with 30 headquartered companies, followed by Dhaka (18) and London (18).
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 6,522 verified decision-maker contacts tracked across these 1,779 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 20, 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.