Company lists · Data refreshed November 2026
Top 25 Semantic search platforms based in the United States
RevenueBase identified 79 company matches for semantic search platforms associated with the United States as of November 2026 and tracks 1,884 professional contacts across them, including 999 with verified work emails. San Francisco is the largest hub.
This list covers company matches for semantic search platforms associated with the United States, 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.
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.
The 25 largest semantic search platforms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 831 contacts → | ||||
Exact match “Algolia is the retrieval intelligence layer that turns intent into trusted, decision-grade outcomes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 210 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 5, 2026 · View company records in RevenueBase | |||||
| 3 | 117 contacts → | ||||
Exact match “At Parallel Web Systems, we’re bringing a new web to life: it’s built with, by, and for AIs.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 106 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 5, 2026 · View company records in RevenueBase | |||||
| 5 | 105 contacts → | ||||
Exact match “A9.com, an Amazon company, solves some of the biggest challenges in search and advertising.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 43 contacts → | ||||
Exact match “Search More.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 37 contacts → | ||||
Exact match “Autonomy is a technology company on a mission to make access to mobility easy and affordable through car subscriptions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 27 contacts → | ||||
Exact match “Coginiti is the Semantic Intelligence Platform that helps data teams build, govern, and operationalize trusted business logic across every data platform, so AI agents and humans…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 22 contacts → | ||||
Exact match “Get hired today.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 17 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 5, 2026 · View company records in RevenueBase | |||||
| 11 | 16 contacts → | ||||
Exact match “Typesense, Inc.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 15 contacts → | ||||
Exact match “At Kobai, we focus on a problem most modern data platforms haven’t solved yet: understanding data across systems.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 14 contacts → | ||||
Exact match “MachEye’s embedded search, powered by LLMs, offers intelligent search, actionable insights, and interactive stories on your business data.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 13 contacts → | ||||
Exact match “iAsk is an AI search engine that delivers the fastest and most accurate responses in seconds, making it an attractive option for users looking for a more intuitive and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “Search is a fundamental need of modern connected software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 13 contacts → | ||||
Exact match “Nomad Data puts instant, trusted answers at your fingertips.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Shaped is the real-time retrieval engine for search, feeds, and agents.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 12 contacts → | ||||
Exact match “Search is broken for consumers, marketers, and e-commerce sites.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “HawkSearch is an intelligent search and recommendations platform that powers success for any size business across all industries.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Perfect Search Corporation produces search appliances that can quickly index and search a wide variety of data, unstructured and structured, using proprietary algorithms that can…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “Lucenia is an enterprise search engine based on Lucene, the same open source library that powers Elasticsearch, and founded by the original creator of Amazon's OpenSearch.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 6 contacts → | ||||
Exact match “As a true industry pioneer, providing some of the world’s most powerful, flexible and scalable search solutions since 1981, Thunderstone Software LLC has developed hard-to-match…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 5 contacts → | ||||
Exact match “TopK focuses on providing the most relevant search results while your engineering teams can focus on what matters the most - building your product.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 5 contacts → | ||||
Exact match “bcloud AI is a technology company engaged in the research, development, and commercialisation of artificial-intelligence-powered enterprise search and data-intelligence software…” Recorded in the RevenueBase company graph · Nov 5, 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 “semantic search platforms”. 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 79 semantic search platforms based in the United States
See the full list, filter by size, metro and specialty, and access 999 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Semantic search platforms based in the United States at a glance
As of Nov 5, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 79 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “semantic search platforms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 999 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.
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 platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many semantic search platforms are there based in the United States?
RevenueBase identified 79 company matches for semantic search platforms associated with the United States 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 city has the most semantic search platforms?
San Francisco leads with 10 company records, followed by New York (7) and Palo Alto (4).
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 999 professional contacts with verified work emails tracked across these 79 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.
Ready to reach these companies? Verified emails and direct dials for all 79 semantic search platforms based in the United States. Start with a free account, no credit card.
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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.
More company lists
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- AI companies based in the United States
- Cybersecurity companies based in the United States
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- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 semantic search platforms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 79 matching company records for semantic search platforms based in the United States, with 1,884 tracked contacts and 999 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 semantic search platforms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Algoliaalgolia.comHQ: Palo Alto, CA, United StatesReported employees: 501-1,000 | Palo Alto, CA, United States | 501-1,000 | Exact match | 831 contacts → |
“Algolia is the retrieval intelligence layer that turns intent into trusted, decision-grade outcomes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Lucidworkslucidworks.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 210 contacts → |
“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Parallel WEB Systemsparallel.aiHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 117 contacts → |
“At Parallel Web Systems, we’re bringing a new web to life: it’s built with, by, and for AIs.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Searchstaxsearchstax.comHQ: El Segundo, CA, United StatesReported employees: 51-200 | El Segundo, CA, United States | 51-200 | Exact match | 106 contacts → |
“SearchStax - the Search Experience Company - enables marketers and developers to deliver fast, relevant website search experiences.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  a9.coma9.comHQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 105 contacts → |
“A9.com, an Amazon company, solves some of the biggest challenges in search and advertising.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ceramic.aiceramic.aiHQ: Mountain View, CA, United StatesReported employees: Not recorded | Mountain View, CA, United States | Not recorded | Exact match | 43 contacts → |
“Search More.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Autonomyautonomy.comHQ: Santa Monica, CA, United StatesReported employees: 51-200 | Santa Monica, CA, United States | 51-200 | Exact match | 37 contacts → |
“Autonomy is a technology company on a mission to make access to mobility easy and affordable through car subscriptions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Coginiticoginiti.coHQ: Los Gatos, GA, United StatesReported employees: 11-50 | Los Gatos, GA, United States | 11-50 | Exact match | 27 contacts → |
“Coginiti is the Semantic Intelligence Platform that helps data teams build, govern, and operationalize trusted business logic across every data platform, so AI agents and humans…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Unnanu Enterprise AI Searchunnanu.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 22 contacts → |
“Get hired today.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Index Dataindexdata.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 17 contacts → |
“Index Data is a software development and consulting enterprise headquartered in Copenhagen and the United States, with offices in several countries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Typesensetypesense.orgHQ: Houston, United StatesReported employees: 11-50 | Houston, United States | 11-50 | Exact match | 16 contacts → |
“Typesense, Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  KOBAIkobai.ioHQ: Pleasanton, CA, United StatesReported employees: 11-50 | Pleasanton, CA, United States | 11-50 | Exact match | 15 contacts → |
“At Kobai, we focus on a problem most modern data platforms haven’t solved yet: understanding data across systems.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Macheyemacheye.comHQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 14 contacts → |
“MachEye’s embedded search, powered by LLMs, offers intelligent search, actionable insights, and interactive stories on your business data.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  iask.aiiask.aiHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 13 contacts → |
“iAsk is an AI search engine that delivers the fastest and most accurate responses in seconds, making it an attractive option for users looking for a more intuitive and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Bonsaibonsai.ioHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 13 contacts → |
“Search is a fundamental need of modern connected software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Nomad Datanomad-data.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 13 contacts → |
“Nomad Data puts instant, trusted answers at your fingertips.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Shapedshaped.aiHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 13 contacts → |
“Shaped is the real-time retrieval engine for search, feeds, and agents.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Diviniadivinia.aiHQ: Cupertino, CA, United StatesReported employees: 11-50 | Cupertino, CA, United States | 11-50 | Exact match | 12 contacts → |
“Search is broken for consumers, marketers, and e-commerce sites.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Hawksearchhawksearch.comHQ: Des Plaines, IL, United StatesReported employees: 11-50 | Des Plaines, IL, United States | 11-50 | Exact match | 10 contacts → |
“HawkSearch is an intelligent search and recommendations platform that powers success for any size business across all industries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Language Computer Corporationlanguagecomputer.comHQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 10 contacts → |
“Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Perfect Search Corporationperfectsearchcorp.comHQ: Orem, UT, United StatesReported employees: 11-50 | Orem, UT, United States | 11-50 | Exact match | 8 contacts → |
“Perfect Search Corporation produces search appliances that can quickly index and search a wide variety of data, unstructured and structured, using proprietary algorithms that can…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Lucenialucenia.ioHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 7 contacts → |
“Lucenia is an enterprise search engine based on Lucene, the same open source library that powers Elasticsearch, and founded by the original creator of Amazon's OpenSearch.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Thunderstone Software LLCthunderstone.comHQ: Cleveland, OH, United StatesReported employees: 11-50 | Cleveland, OH, United States | 11-50 | Exact match | 6 contacts → |
“As a true industry pioneer, providing some of the world’s most powerful, flexible and scalable search solutions since 1981, Thunderstone Software LLC has developed hard-to-match…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  TOPKtopk.ioHQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 5 contacts → |
“TopK focuses on providing the most relevant search results while your engineering teams can focus on what matters the most - building your product.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Bcloud AIbcloud.aiHQ: Columbus, OH, United StatesReported employees: 11-50 | Columbus, OH, United States | 11-50 | Exact match | 5 contacts → |
“bcloud AI is a technology company engaged in the research, development, and commercialisation of artificial-intelligence-powered enterprise search and data-intelligence software…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 79 company matches
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Semantic search platforms: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
78 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 79 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for semantic search platforms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many semantic search platforms did RevenueBase find based in the United States?
The saved snapshot records 79 matching company records, 1,884 tracked contacts and 999 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 semantic search platforms based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/semantic-search-platforms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 semantic search platforms based in the United States
RevenueBase records 79 matching company records for semantic search platforms based in the United States, with 1,884 tracked contacts and 999 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 5, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 semantic search platforms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Algoliaalgolia.com HQ: Palo Alto, CA, United StatesReported employees: 501-1,000 | Palo Alto, CA, United States | 501-1,000 | Exact match | 831 contacts → |
“Algolia is the retrieval intelligence layer that turns intent into trusted, decision-grade outcomes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Lucidworkslucidworks.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 210 contacts → |
“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Parallel WEB Systemsparallel.ai HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 117 contacts → |
“At Parallel Web Systems, we’re bringing a new web to life: it’s built with, by, and for AIs.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Searchstaxsearchstax.com HQ: El Segundo, CA, United StatesReported employees: 51-200 | El Segundo, CA, United States | 51-200 | Exact match | 106 contacts → |
“SearchStax - the Search Experience Company - enables marketers and developers to deliver fast, relevant website search experiences.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | a9.coma9.com HQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 105 contacts → |
“A9.com, an Amazon company, solves some of the biggest challenges in search and advertising.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ceramic.aiceramic.ai HQ: Mountain View, CA, United StatesReported employees: Not recorded | Mountain View, CA, United States | Not recorded | Exact match | 43 contacts → |
“Search More.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Autonomyautonomy.com HQ: Santa Monica, CA, United StatesReported employees: 51-200 | Santa Monica, CA, United States | 51-200 | Exact match | 37 contacts → |
“Autonomy is a technology company on a mission to make access to mobility easy and affordable through car subscriptions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Coginiticoginiti.co HQ: Los Gatos, GA, United StatesReported employees: 11-50 | Los Gatos, GA, United States | 11-50 | Exact match | 27 contacts → |
“Coginiti is the Semantic Intelligence Platform that helps data teams build, govern, and operationalize trusted business logic across every data platform, so AI agents and humans…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Unnanu Enterprise AI Searchunnanu.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 22 contacts → |
“Get hired today.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Index Dataindexdata.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 17 contacts → |
“Index Data is a software development and consulting enterprise headquartered in Copenhagen and the United States, with offices in several countries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Typesensetypesense.org HQ: Houston, United StatesReported employees: 11-50 | Houston, United States | 11-50 | Exact match | 16 contacts → |
“Typesense, Inc.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | KOBAIkobai.io HQ: Pleasanton, CA, United StatesReported employees: 11-50 | Pleasanton, CA, United States | 11-50 | Exact match | 15 contacts → |
“At Kobai, we focus on a problem most modern data platforms haven’t solved yet: understanding data across systems.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Macheyemacheye.com HQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 14 contacts → |
“MachEye’s embedded search, powered by LLMs, offers intelligent search, actionable insights, and interactive stories on your business data.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | iask.aiiask.ai HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 13 contacts → |
“iAsk is an AI search engine that delivers the fastest and most accurate responses in seconds, making it an attractive option for users looking for a more intuitive and…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Bonsaibonsai.io HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 13 contacts → |
“Search is a fundamental need of modern connected software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nomad Datanomad-data.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 13 contacts → |
“Nomad Data puts instant, trusted answers at your fingertips.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Shapedshaped.ai HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 13 contacts → |
“Shaped is the real-time retrieval engine for search, feeds, and agents.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Diviniadivinia.ai HQ: Cupertino, CA, United StatesReported employees: 11-50 | Cupertino, CA, United States | 11-50 | Exact match | 12 contacts → |
“Search is broken for consumers, marketers, and e-commerce sites.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hawksearchhawksearch.com HQ: Des Plaines, IL, United StatesReported employees: 11-50 | Des Plaines, IL, United States | 11-50 | Exact match | 10 contacts → |
“HawkSearch is an intelligent search and recommendations platform that powers success for any size business across all industries.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Language Computer Corporationlanguagecomputer.com HQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 10 contacts → |
“Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Perfect Search Corporationperfectsearchcorp.com HQ: Orem, UT, United StatesReported employees: 11-50 | Orem, UT, United States | 11-50 | Exact match | 8 contacts → |
“Perfect Search Corporation produces search appliances that can quickly index and search a wide variety of data, unstructured and structured, using proprietary algorithms that can…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Lucenialucenia.io HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 7 contacts → |
“Lucenia is an enterprise search engine based on Lucene, the same open source library that powers Elasticsearch, and founded by the original creator of Amazon's OpenSearch.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Thunderstone Software LLCthunderstone.com HQ: Cleveland, OH, United StatesReported employees: 11-50 | Cleveland, OH, United States | 11-50 | Exact match | 6 contacts → |
“As a true industry pioneer, providing some of the world’s most powerful, flexible and scalable search solutions since 1981, Thunderstone Software LLC has developed hard-to-match…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | TOPKtopk.io HQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 5 contacts → |
“TopK focuses on providing the most relevant search results while your engineering teams can focus on what matters the most - building your product.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Bcloud AIbcloud.ai HQ: Columbus, OH, United StatesReported employees: 11-50 | Columbus, OH, United States | 11-50 | Exact match | 5 contacts → |
“bcloud AI is a technology company engaged in the research, development, and commercialisation of artificial-intelligence-powered enterprise search and data-intelligence software…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 79 company matches
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Semantic search platforms: dataset insights
November 5, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
78 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 79 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for semantic search platforms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many semantic search platforms did RevenueBase find based in the United States?
The saved snapshot records 79 matching company records, 1,884 tracked contacts and 999 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 5, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 semantic search platforms based in the United States. Snapshot: November 5, 2026. https://revenuebase.ai/companies/semantic-search-platforms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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