Company lists · Data refreshed September 2026
Top 25 Voice search optimization agencies worldwide
RevenueBase identified 4,930 voice search optimization agencies worldwide as of September 2026 and tracks 69,096 professional contacts across them, including 4,060 with verified work emails. The United States is the largest market and London the largest hub.
This list covers voice search optimization agencies 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 22, 2026. Country and city lists for voice search optimization agencies 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 voice search optimization agencies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,896 contacts → | ||||
Partial evidence “The way people search is changing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 183 contacts → | ||||
Indirect evidence “Incorporated in 2010, AuroIN LLC is a premier digital marketing agency based in World Trade Center, New York, specializing in AI-driven SEO strategies that deliver measurable ROI.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 149 contacts → | ||||
Partial evidence “GPO is everything search.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 127 contacts → | ||||
Indirect evidence “Semalt is a results-driven, technology-inspired SEO company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 123 contacts → | ||||
Partial evidence “Adthena is the market-leading, AI-driven search intelligence platform that helps enterprise brands and agencies lower paid search costs, protect brand equity and stay ahead of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 111 contacts → | ||||
Partial evidence “StudioHawk is Australia’s #1 dedicated SEO & AI Search agency.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 108 contacts → | ||||
Indirect evidence “En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 106 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 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 103 contacts → | ||||
Indirect evidence “We are specialists in SEO & Web Designing We are extremely skilled and extremely experienced provider of all of the Web solutions available.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 103 contacts → | ||||
Indirect evidence “At DigiXpressions, we are dedicated to shaping the future of the digital marketplace with a strong focus on technology, innovation, and process.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 102 contacts → | ||||
Indirect evidence “Since 2004, Savit Interactive has been at the forefront of digital marketing, empowering businesses across India, the US, UK, Australia, Dubai, and more to build a strong and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 100 contacts → | ||||
Indirect evidence “Stop chasing algorithms.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 91 contacts → | ||||
Partial evidence “Writesonic runs your marketing for the AI-search era.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 89 contacts → | ||||
Indirect evidence “SeoProfy is your strategic SEO and AI visibility partner for organic and AI visibility that brings real ROI.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 88 contacts → | ||||
Partial evidence “Jaywing is a data science led search and online media specialist with an integrated approach to marketing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 88 contacts → | ||||
Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 87 contacts → | ||||
Indirect evidence “Kadabra is an online marketing powerhouse We specialize in SEO, Media, PPC, ASO and Business Analytics.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 80 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 22, 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: voice search optimization agencies. 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 voice search optimization agencies.
- Partial evidence
- Its own public description names part of voice search optimization agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name voice search optimization agencies. 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 4,930 voice search optimization agencies worldwide
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Voice search optimization agencies worldwide at a glance
As of Sep 22, 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 voice search optimization agencies, 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 voice search optimization agencies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “voice search optimization agencies”. 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 voice search optimization agencies), 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 voice search optimization agencies, 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, 4,060 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 22, 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.
Voice search optimization agencies by location
15 lists · largest firstEvery Voice search optimization agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Voice search optimization agencies based in the United States1,030
- Voice search optimization agencies based in India417
- Voice search optimization agencies based in the United Kingdom360
- Voice search optimization agencies based in France234
- Voice search optimization agencies based in Germany184
- Voice search optimization agencies based in Spain139
- Voice search optimization agencies based in Canada136
- Voice search optimization agencies based in Australia121
- Voice search optimization agencies based in the Netherlands114
- Voice search optimization agencies based in Brazil78
- Voice search optimization agencies based in Poland69
- Voice search optimization agencies based in Israel38
- Voice search optimization agencies based in Italy30
- Voice search optimization agencies based in Sweden27
- Voice search optimization agencies based in Switzerland27
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 voice search optimization agencies, 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 voice search optimization agencies are there worldwide?
RevenueBase identified 4,930 voice search optimization agencies 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, headquartered in Melbourne, tops this list with the largest team on record.
Which country has the most voice search optimization agencies?
The United States leads with 1,030 companies, followed by India (417) and the United Kingdom (360). Every voice search optimization agencies list by country and city is linked on this page.
Which city has the most voice search optimization agencies?
London leads with 122 headquartered companies, followed by Paris (61) and New York (52).
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 4,060 verified decision-maker contacts tracked across these 4,930 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 22, 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.