Company lists · Data refreshed September 2026
Top 25 Search and discovery software companies based in the United States
RevenueBase identified 228 search and discovery software companies headquartered in the United States as of September 2026 and tracks 12,210 professional contacts across them, including 5,068 with verified work emails and 3,482 with mobile numbers. San Francisco is the largest hub.
This list covers search and discovery software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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 search and discovery software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,693 | ||||
“AlphaSense is the technology behind the business world’s most important decisions – from Wall Street to boardrooms across every major industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | LighthouseIndirect evidence | 1,043 | |||
“Lighthouse is a global leader in eDiscovery, digital forensics, AI-driven analytics, and legal intelligence solutions, empowering legal teams, corporate counsel, and global brands…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 811 | ||||
“Algolia is a leading AI search and discovery platform, powering more than 1.75 trillion queries each year for over businesses worldwide.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 671 | ||||
“Constructor is the only search and discovery platform designed exclusively for commerce where conversions matter.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 589 | ||||
“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.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 538 | ||||
“Everlaw keeps legal teams one step ahead of the growing demands of ediscovery by transforming how they discover the truth.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 492 | ||||
“Reveal helps legal professionals solve complex discovery problems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 253 | ||||
“Botify’s AI search solutions give brands the power to be found everywhere, by consumers, bots, and agents alike.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 205 | ||||
“Lucidworks makes search a superpower-ensuring the right information reaches the right people at the right time.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | qlu.aiPartial evidence | 113 | |||
“QLU is designed for executive search teams.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 110 | ||||
“SearchStax - the Search Experience Company - enables marketers and developers to deliver fast, relevant website search experiences.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 89 | ||||
“IPRO is reinventing the way organizations interact with their data.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 82 | ||||
“CloudNine, an industry standard setter and innovator, empowers you to simplify eDiscovery, external and internal investigations, audits and access requests for law firms…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 80 | ||||
“Infinnium is redefining the way organizations interact with data to gain actionable intelligence.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 73 | ||||
“Recommind was acquired by OpenText in July 2016.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 | ||||
“H5 is a leading provider of technology-assisted review and e-discovery services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 64 | ||||
“For over two decades, Ad.net has been the leader in independent search and social technology, working with premium brands and publishers to generate millions in annual incremental…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Round Table GroupPartial evidence | 58 | |||
“Celebrating our 30th anniversary in 2024, we are a well-established market leader and innovator in expert search.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 56 | ||||
“Discover Technologies specializes in IT consulting, enterprise search/ advanced content indexing and accessibility/usability solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 53 | ||||
“Our AI and NLP-powered discovery platform includes on-site Smart Search, Smart Category Merchandising, Product Recommendations, and Personalization enabling ecommerce websites to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 46 | ||||
“Autonomy is a technology company on a mission to make access to mobility easy and affordable through car subscriptions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | X1Indirect evidence | 46 | |||
“X1 creates exceptional solutions for people and organizations that need to find information, whether on individual desktops or company networks at the fastest speeds in the…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 | ||||
“We are the data navigators.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Searchblox Software, INCPartial evidence | 37 | |||
“SearchBlox is the company behind SearchAI, an agentic search platform built for enterprises and eCommerce.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 | ||||
“iDiscover is a global leader in eDiscovery software and services, providing mission-critical eDiscovery support in complex intellectual property, antitrust, class action, and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 228 search and discovery software companies based in the United States
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Search and discovery software companies based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among search and discovery software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “search and discovery software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among search and discovery software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 5,068 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Search and discovery software companies by metro
- Search and discovery software companies in San Francisco26
Frequently asked
How many search and discovery software companies are there based in the United States?
RevenueBase identified 228 search and discovery software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Alphasense, headquartered in New York, tops this list with the largest team on record.
Which city has the most search and discovery software companies?
San Francisco leads with 26 headquartered companies, followed by New York (17) and Los Angeles (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,068 verified decision-maker contacts tracked across these 228 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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