Company lists · Data refreshed November 2026

Top 25 Semantic search engine companies worldwide

RevenueBase identified 429 company matches for semantic search engine companies worldwide as of November 2026 and tracks 5,880 professional contacts across them, including 1,627 with verified work emails. The United States is the largest market and Bangalore the largest hub.

This list covers company matches for semantic search engine companies 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 semantic search engine companies 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
429Companies
5,880Contacts tracked
1,627Verified emails
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The 25 largest semantic search engine companies worldwide

Ranked by team size
Top 25 of 429 company matches for semantic search engine companies 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchPalo Alto, CA, United StatesHQ recorded Nov 6, 2026501-1,000831 contacts →

Exact match

“Algolia is the retrieval intelligence layer that turns intent into trusted, decision-grade outcomes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, United StatesHQ recorded Nov 6, 2026201-500675 contacts →

Exact match

“At Conductor, we’re on a mission to help companies realize the full potential of their AI search presence and translate their wisdom into content that helps people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500256 contacts →

Exact match

“Botify’s AI search solutions give brands the power to be found everywhere, by consumers, bots, and agents alike.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 2026201-500210 contacts →

Exact match

“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSeoul, South KoreaHQ recorded Nov 6, 202651-200165 contacts →

Exact match

“Saltlux makes all efforts to fulfill its mission of helping people in "communicating knowledge", by innovative products and solutions in information search and mining solutions to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchGijón, NY, SpainHQ recorded Nov 6, 2026201-500122 contacts →

Exact match

“Transformational Search Made with Empathy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEl Segundo, CA, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“SearchStax - the Search Experience Company - enables marketers and developers to deliver fast, relevant website search experiences.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“performance.io are the specialist SEO and AI search agency helping brands drive online performance in the evolving search landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMunich, GermanyHQ recorded Nov 6, 202651-20069 contacts →

Exact match

“Every day, companies and government agencies generate huge amounts of data, distributed across emails, file storage systems, specialist applications, cloud services, and databases.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5049 contacts →

Exact match

“SUSO Digital is an award-winning SEO and AI Search agency.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRome, ItalyHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“WordLift is an AI-driven platform revolutionizing digital content strategy for e-commerce, news, and media.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLa Coruña, SpainHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“Somos una compañía tecnológica nacida en el año 2007 y especializada en arquitectura de software, clasificación de textos y comercio electrónico.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSofia, BulgariaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“Ontotext is a global leader in semantic technology and knowledge graph solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Founded by Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHong Kong, United StatesHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Aloha is a Hong Kong–based Search and AI Engine visibility technology company, founded in 2016, focused on helping brands stay visible where decisions are now shaped, across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchChapel Hill, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Lead Semantics develops and markets AI solutions targeting 'Text and Knowledge' using state of the art NLP, Large Language Models, and Semantic Graph technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMenlo Park, CA, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“We Structure the World's Knowledge.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAustin, TX, United StatesHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Get hired today.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchItalyHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“By leveraging Big Data, Machine Learning & Semantic Web techs we are building a high-quality knowledge-graph derived from hundreds of sources.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPlzeň, Czech RepublicHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“SentiSquare vyvíjí malé specializované AI jazykové modely (SLM) šité na míru potřebám firem.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFreiburg, GermanyHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Averbis GmbH, located in Freiburg, Germany, develops search technologies and text analytics software for the health care market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Index Data is a software development and consulting enterprise headquartered in Copenhagen and the United States, with offices in several countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGrootebroek, NetherlandsHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Infolution develops scalable text processing solutions that utilize the power of innovative semantic technology to enhance the performance and intelligence of enterprises.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDarmstadt, GermanyHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Die Empolis Intelligent Views GmbH zählt mit ihrer Knowledge-Graph-Plattform zu den führenden Anbietern semantischer Technologien und wissensbasierter KI im deutschsprachigen Raum.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Squiz DXP Search empowers you to surface the most relevant answers on your website, regardless of content silos or formats.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 429 semantic search engine companies worldwide

See the full list, filter by size, metro and specialty, and access 1,627 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Semantic search engine companies worldwide at a glance

As of Nov 6, 2026
27.7%Verified-email coverage
13.7Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · Bangalore
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
266
11-50
124
51-200
27
201-500
9
501-1,000
1
1,001-5,000
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 semantic search engine companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “semantic search engine companies” 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 1,627 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.

Semantic search engine companies by location

2 lists · largest first

Every Semantic search engine companies 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 “semantic search engine companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many semantic search engine companies are there worldwide?

RevenueBase identified 429 company matches for semantic search engine companies 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?

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

Which country has the most semantic search engine companies?

The United States leads with 100 companies, followed by Germany (25). Every semantic search engine companies list by country and city is linked on this page.

Which city has the most semantic search engine companies?

Bangalore leads with 16 company records, followed by New York (12) and San Francisco (11).

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 1,627 professional contacts with verified work emails tracked across these 429 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.