Company lists · Data refreshed November 2026

Top 25 Online advertising consultants worldwide

Name: Online advertising consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 39,448 companies tracked

RevenueBase identified 39,448 company matches for online advertising consultants worldwide as of November 2026 and tracks 235,505 professional contacts across them, including 43,011 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for online advertising consultants 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 6, 2026. Country and city lists for online advertising consultants 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 6, 2026 How this list was built

39,448Companies

235,505Contacts tracked

43,011Verified emails

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The 25 largest online advertising consultants worldwide

Ranked by team size

Top 25 of 39,448 company matches for online advertising consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mediaocean	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,111 contacts →
	Exact match “Mediaocean is powering the future of the advertising ecosystem with technology that empowers brands and agencies to deliver impactful omnichannel marketing experiences.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Smartly	Exact match	Helsinki, FinlandHQ recorded Nov 6, 2026	501-1,000	922 contacts →
	Exact match “Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Logical Position	Exact match	Lake Oswego, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	907 contacts →
	Exact match “Logical Position (LP) is an Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	NP Digital	Exact match	San Diego, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 contacts →
	Exact match “Neil Patel has been recognized by the Wall Street Journal, Forbes, and the United Nations, to name a few, as one of the most influential and successful marketers and entrepreneurs…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Interactive Avenues	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	501-1,000	785 contacts →
	Exact match “Interactive Avenues is India’s leading full-service digital marketing company with offices in Mumbai (headquarters), Gurugram, Bengaluru, Chennai and Kolkata.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Cadastra	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	744 contacts →
	Exact match “We are a global company that blends digital marketing services, consulting and technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Perion	Exact match	New York, United StatesHQ recorded Nov 6, 2026	501-1,000	685 contacts →
	Exact match “Perion is helping agencies, brands and retailers get better results with their marketing investments by providing advanced technology across all major digital channels.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Performics India	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	682 contacts →
	Exact match “Performics is India's largest performance marketing agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Techmagnate	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	201-500	577 contacts →
	Exact match “Techmagnate is a leading, award-winning digital marketing agency.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Precis	Exact match	Stockholm, SwedenHQ recorded Nov 6, 2026	201-500	571 contacts →
	Exact match “Precis is a modern, tech-powered digital marketing agency specialising in media buying, analytics, creative, and proprietary technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Hiveminds	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	201-500	525 contacts →
	Exact match “We are HiveMinds, a unit of Madison World.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Adsmurai	Exact match	Barcelona, United StatesHQ recorded Nov 6, 2026	201-500	507 contacts →
	Exact match “Adsmurai is a Growth-Tech Partner that helps brands transform marketing into a connected, measurable, and scalable growth system.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Ebrandz LLP	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	434 contacts →
	Exact match “Within a short span, eBrandz has seen enormous growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Localedge	Exact match	Buffalo, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	401 contacts →
	Exact match “LocalEdge, a Hearst Media Services Company, offers a full suite of online advertising products and services for any size business and budget across the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Innity	Exact match	Petaling Jaya, MalaysiaHQ recorded Nov 6, 2026	201-500	393 contacts →
	Exact match “Innity is a leading online media company in Asia that offers best in class data-driven ad tech solutions that combines creative programmatic, ad-serving, data management, audience…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ARM Worldwide	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	51-200	386 contacts →
	Exact match “Established in 2013,#ARM Worldwide is a renowned digital advertising and marketing communications enterprise that specializes in developing and implementing digital strategies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	MBM	Exact match	Auckland, New ZealandHQ recorded Nov 6, 2026	51-200	385 contacts →
	Exact match “MBM was founded in 2010, and became New Zealand’s largest independent media agency with over 100 staff in its Auckland and Wellington offices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Yeahmobi	Exact match	Xian, ChinaHQ recorded Nov 6, 2026	201-500	381 contacts →
	Exact match “Yeahmobi is a leading mobile marketing company that helps businesses reach global growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Online Marketing Gurus	Exact match	Crows Nest, TX, United StatesHQ recorded Nov 6, 2026	51-200	376 contacts →
	Exact match “Online Marketing Gurus (OMG) is an award-winning Leading Digital Marketing Agency, with locations in Australia, USA, UAE & Singapore.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Vertoz	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	351 contacts →
	Exact match “Vertoz (NSE: VERTOZ) is a global AI‑led digital advertising ecosystem, where strategies and execution are engineered for outcomes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	First Page	Exact match	Melbourne, AustraliaHQ recorded Nov 6, 2026	201-500	348 contacts →
	Exact match “When it comes to Digital Marketing, it’s the First Page, or it’s nothing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Ethinos	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	201-500	347 contacts →
	Exact match “As a leading digital marketing agency headquartered in Mumbai, with a strong presence across multiple locations in India and even in Australia, Ethinos brings together creative…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Outerbox	Exact match	Akron, OH, United StatesHQ recorded Nov 6, 2026	201-500	346 contacts →
	Exact match “At OuterBox, we believe growth is oxygen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Adaan Digital Solutions	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	201-500	316 contacts →
	Exact match “Adaan specializes in designing and implementing digital marketing services and solutions for SMBs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	W3era WEB Technology PVT LTD	Exact match	Jaipur, IndiaHQ recorded Nov 6, 2026	201-500	298 contacts →
	Exact match “Most businesses don't struggle because they lack effort.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “online advertising consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 39,448 online advertising consultants worldwide

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Online advertising consultants worldwide at a glance

As of Nov 6, 2026

18.3%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

27,105

11-50

9,983

51-200

1,661

201-500

370

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

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 online advertising consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “online advertising consultants” 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 43,011 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 6, 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.

Online advertising consultants by location

184 lists · largest first

Every Online advertising consultants 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 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 “online advertising consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many online advertising consultants are there worldwide?

RevenueBase identified 39,448 company matches for online advertising consultants 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?

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

Which country has the most online advertising consultants?

The United States leads with 6,509 companies, followed by India (6,219) and the United Kingdom (1,955). Every online advertising consultants list by country and city is linked on this page.

Which city has the most online advertising consultants?

London leads with 699 company records, followed by New Delhi (511) and Noida (389).

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 43,011 professional contacts with verified work emails tracked across these 39,448 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 6, 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.