Company lists · Data refreshed September 2026
Top 25 Semantic search companies based in the United States
RevenueBase identified 81 company matches for semantic search companies associated with the United States as of September 2026 and tracks 1,466 professional contacts across them, including 524 with verified work emails. San Francisco is the largest hub.
This list covers company matches for semantic search companies 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 September 22, 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 companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 589 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 205 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 157 contacts → | ||||
Exact match “App Orchid accelerates enterprise AI, analytics, and decision intelligence-connecting data, context, and users to drive smarter, faster outcomes.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 36 contacts → | ||||
Exact match “Founded by Dr.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 32 contacts → | ||||
Exact match “TopQuadrant turns complex data into AI-ready data foundations for the world’s largest enterprises.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 27 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 26 contacts → | ||||
Exact match “We Structure the World's Knowledge.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 25 contacts → | ||||
Exact match “Tursio is a database search tool that connects internal data to business users and AI agents.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 23 contacts → | ||||
Exact match “Get hired today.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 16 contacts → | ||||
Exact match “Lovelace is the only provider of enterprise-scale context engines capable of analyzing trillions of real-time data points to create knowledge graphs that are usable by autonomous…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 16 contacts → | ||||
Exact match “SparkCognition acquired Maana on July 1, 2021.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 13 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 11 contacts → | ||||
Exact match “Search Strategy Solutions is a group of search-industry veterans with broad experience in the many disciplines of search including: data and metadadata, taxonomy and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “Lymba offers best-in-class Knowledge Management software solutions to transform large unstructured data collections into actionable knowledge.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “Search is broken for consumers, marketers, and e-commerce sites.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “Semandex has pioneered the application of semantic technology for government and business solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match “Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 8 contacts → | ||||
Exact match “Rapider enables businesses to search, analyze, and act on their internal knowledge.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 7 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “iseek.ai is redefining how institutions and enterprises find and synthesize essential information.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “LEAD builds a RAG-ready Behavioral Knowledge Graph that trains AI to understand organizational behavior, including how internal social networks shape collaboration…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 6 contacts → | ||||
Exact match “Create an AI search strategy to supercharge your lead generation efforts.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 5 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “We're building vertical-specific search and recommendation systems for e-commerce and enterprise.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Fairview Research delivers data enrichment and search solutions using cutting-edge semantic technologies to organizations across all industries.” Recorded in the RevenueBase company graph · Sep 22, 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 companies”. 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 81 semantic search companies based in the United States
See the full list, filter by size, metro and specialty, and access 524 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Semantic search companies based in the United States at a glance
As of Sep 22, 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 81 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 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. 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 524 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 September 22, 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 companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many semantic search companies are there based in the United States?
RevenueBase identified 81 company matches for semantic search companies associated with the United States as of September 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?
Conductor tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most semantic search companies?
San Francisco leads with 9 company records, followed by New York (8) and Richardson (3).
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 524 professional contacts with verified work emails tracked across these 81 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 September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 81 semantic search companies based in the United States. Start with a free account, no credit card.
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Semantic search companies by geography
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Semantic search companies based in Germany
- 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
Company intelligence · public preview
Top 25 semantic search companies 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 81 matching company records for semantic search companies based in the United States, with 1,466 tracked contacts and 524 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: September 22, 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 companies 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 |  Conductorconductor.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 589 contacts → |
“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 description excerpt · September 22, 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 | 205 contacts → |
“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  APP Orchid INCapporchid.comHQ: San Ramon, CA, United StatesReported employees: 51-200 | San Ramon, CA, United States | 51-200 | Exact match | 157 contacts → |
“App Orchid accelerates enterprise AI, analytics, and decision intelligence-connecting data, context, and users to drive smarter, faster outcomes.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Jina AIjina.aiHQ: Sunnyvale, CA, United StatesReported employees: 11-50 | Sunnyvale, CA, United States | 11-50 | Exact match | 36 contacts → |
“Founded by Dr.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Topquadranttopquadrant.comHQ: Raleigh, NY, United StatesReported employees: 11-50 | Raleigh, NY, United States | 11-50 | Exact match | 32 contacts → |
“TopQuadrant turns complex data into AI-ready data foundations for the world’s largest enterprises.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Lead Semanticsleadsemantics.comHQ: Chapel Hill, United StatesReported employees: 11-50 | Chapel Hill, United States | 11-50 | Exact match | 27 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Diffbotdiffbot.comHQ: Menlo Park, CA, United StatesReported employees: 11-50 | Menlo Park, CA, United States | 11-50 | Exact match | 26 contacts → |
“We Structure the World's Knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Tursiotursio.aiHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 25 contacts → |
“Tursio is a database search tool that connects internal data to business users and AI agents.” Recorded description excerpt · September 22, 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 | 23 contacts → |
“Get hired today.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Lovelacelovelace.aiHQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 16 contacts → |
“Lovelace is the only provider of enterprise-scale context engines capable of analyzing trillions of real-time data points to create knowledge graphs that are usable by autonomous…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  MAANAsparkcognition.comHQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 16 contacts → |
“SparkCognition acquired Maana on July 1, 2021.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Macheyemacheye.comHQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 13 contacts → |
“MachEye’s embedded search, powered by LLMs, offers intelligent search, actionable insights, and interactive stories on your business data.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Search Strategy Solutionssearchstrategysolutions.comHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 11 contacts → |
“Search Strategy Solutions is a group of search-industry veterans with broad experience in the many disciplines of search including: data and metadadata, taxonomy and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  LYMBAlymba.comHQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 11 contacts → |
“Lymba offers best-in-class Knowledge Management software solutions to transform large unstructured data collections into actionable knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Diviniadivinia.aiHQ: Cupertino, CA, United StatesReported employees: 11-50 | Cupertino, CA, United States | 11-50 | Exact match | 11 contacts → |
“Search is broken for consumers, marketers, and e-commerce sites.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Semandex Networkssemandex.com HQ: Princeton, NJ, United StatesReported employees: 11-50 | Princeton, NJ, United States | 11-50 | Exact match | 10 contacts → |
“Semandex has pioneered the application of semantic technology for government and business solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Language Computer Corporationlanguagecomputer.comHQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 9 contacts → |
“Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Rapider AIrapider.aiHQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 8 contacts → |
“Rapider enables businesses to search, analyze, and act on their internal knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  TOPKtopk.ioHQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 7 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  iseek.aiiseek.aiHQ: New Hope, PA, United StatesReported employees: 51-200 | New Hope, PA, United States | 51-200 | Exact match | 6 contacts → |
“iseek.ai is redefining how institutions and enterprises find and synthesize essential information.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 6 contacts → |
“LEAD builds a RAG-ready Behavioral Knowledge Graph that trains AI to understand organizational behavior, including how internal social networks shape collaboration…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Contentmassivecontentmassive.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 6 contacts → |
“Create an AI search strategy to supercharge your lead generation efforts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Hawksearchhawksearch.comHQ: Des Plaines, IL, United StatesReported employees: 11-50 | Des Plaines, IL, United States | 11-50 | Exact match | 5 contacts → |
“HawkSearch is an intelligent search and recommendations platform that powers success for any size business across all industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Refinejoinrefine.ioHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 4 contacts → |
“We're building vertical-specific search and recommendation systems for e-commerce and enterprise.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fairview Research LLCfairviewresearch.com HQ: New Haven, CT, United StatesReported employees: 11-50 | New Haven, CT, United States | 11-50 | Exact match | 3 contacts → |
“Fairview Research delivers data enrichment and search solutions using cutting-edge semantic technologies to organizations across all industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 81 company matches
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Semantic search companies: dataset insights
September 22, 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
81 records in the displayed employee bands.
0 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 81 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: September 22, 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 companies?
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 companies did RevenueBase find based in the United States?
The saved snapshot records 81 matching company records, 1,466 tracked contacts and 524 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: September 22, 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
Semantic search companies by geography
Cite this list
RevenueBase Data Team. Top 25 semantic search companies based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/semantic-search-companies/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
- Semantic search companies based in Germany
- 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
Company intelligence · public preview
Top 25 semantic search companies based in the United States
RevenueBase records 81 matching company records for semantic search companies based in the United States, with 1,466 tracked contacts and 524 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: September 22, 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 companies 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 | Conductorconductor.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 589 contacts → |
“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 description excerpt · September 22, 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 | 205 contacts → |
“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | APP Orchid INCapporchid.com HQ: San Ramon, CA, United StatesReported employees: 51-200 | San Ramon, CA, United States | 51-200 | Exact match | 157 contacts → |
“App Orchid accelerates enterprise AI, analytics, and decision intelligence-connecting data, context, and users to drive smarter, faster outcomes.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Jina AIjina.ai HQ: Sunnyvale, CA, United StatesReported employees: 11-50 | Sunnyvale, CA, United States | 11-50 | Exact match | 36 contacts → |
“Founded by Dr.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Topquadranttopquadrant.com HQ: Raleigh, NY, United StatesReported employees: 11-50 | Raleigh, NY, United States | 11-50 | Exact match | 32 contacts → |
“TopQuadrant turns complex data into AI-ready data foundations for the world’s largest enterprises.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Lead Semanticsleadsemantics.com HQ: Chapel Hill, United StatesReported employees: 11-50 | Chapel Hill, United States | 11-50 | Exact match | 27 contacts → |
“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 description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Diffbotdiffbot.com HQ: Menlo Park, CA, United StatesReported employees: 11-50 | Menlo Park, CA, United States | 11-50 | Exact match | 26 contacts → |
“We Structure the World's Knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Tursiotursio.ai HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 25 contacts → |
“Tursio is a database search tool that connects internal data to business users and AI agents.” Recorded description excerpt · September 22, 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 | 23 contacts → |
“Get hired today.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Lovelacelovelace.ai HQ: Pittsburgh, PA, United StatesReported employees: 11-50 | Pittsburgh, PA, United States | 11-50 | Exact match | 16 contacts → |
“Lovelace is the only provider of enterprise-scale context engines capable of analyzing trillions of real-time data points to create knowledge graphs that are usable by autonomous…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | MAANAsparkcognition.com HQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 16 contacts → |
“SparkCognition acquired Maana on July 1, 2021.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Macheyemacheye.com HQ: San Jose, CA, United StatesReported employees: 11-50 | San Jose, CA, United States | 11-50 | Exact match | 13 contacts → |
“MachEye’s embedded search, powered by LLMs, offers intelligent search, actionable insights, and interactive stories on your business data.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Search Strategy Solutionssearchstrategysolutions.com HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 11 contacts → |
“Search Strategy Solutions is a group of search-industry veterans with broad experience in the many disciplines of search including: data and metadadata, taxonomy and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | LYMBAlymba.com HQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 11 contacts → |
“Lymba offers best-in-class Knowledge Management software solutions to transform large unstructured data collections into actionable knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Diviniadivinia.ai HQ: Cupertino, CA, United StatesReported employees: 11-50 | Cupertino, CA, United States | 11-50 | Exact match | 11 contacts → |
“Search is broken for consumers, marketers, and e-commerce sites.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Semandex Networkssemandex.com HQ: Princeton, NJ, United StatesReported employees: 11-50 | Princeton, NJ, United States | 11-50 | Exact match | 10 contacts → |
“Semandex has pioneered the application of semantic technology for government and business solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Language Computer Corporationlanguagecomputer.com HQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 9 contacts → |
“Language Computer Corporation (LCC) is a privately-owned U.S.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Rapider AIrapider.ai HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 8 contacts → |
“Rapider enables businesses to search, analyze, and act on their internal knowledge.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TOPKtopk.io HQ: San Francisco, United StatesReported employees: 1-10 | San Francisco, United States | 1-10 | Exact match | 7 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | iseek.aiiseek.ai HQ: New Hope, PA, United StatesReported employees: 51-200 | New Hope, PA, United States | 51-200 | Exact match | 6 contacts → |
“iseek.ai is redefining how institutions and enterprises find and synthesize essential information.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 6 contacts → |
“LEAD builds a RAG-ready Behavioral Knowledge Graph that trains AI to understand organizational behavior, including how internal social networks shape collaboration…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Contentmassivecontentmassive.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 6 contacts → |
“Create an AI search strategy to supercharge your lead generation efforts.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Hawksearchhawksearch.com HQ: Des Plaines, IL, United StatesReported employees: 11-50 | Des Plaines, IL, United States | 11-50 | Exact match | 5 contacts → |
“HawkSearch is an intelligent search and recommendations platform that powers success for any size business across all industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Refinejoinrefine.io HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 4 contacts → |
“We're building vertical-specific search and recommendation systems for e-commerce and enterprise.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Fairview Research LLCfairviewresearch.com HQ: New Haven, CT, United StatesReported employees: 11-50 | New Haven, CT, United States | 11-50 | Exact match | 3 contacts → |
“Fairview Research delivers data enrichment and search solutions using cutting-edge semantic technologies to organizations across all industries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 81 company matches
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Semantic search companies: dataset insights
September 22, 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
81 records in the displayed employee bands.
0 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 81 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: September 22, 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 companies?
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 companies did RevenueBase find based in the United States?
The saved snapshot records 81 matching company records, 1,466 tracked contacts and 524 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: September 22, 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
Semantic search companies by geography
Cite this list
RevenueBase Data Team. Top 25 semantic search companies based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/semantic-search-companies/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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