Company lists · Data refreshed September 2026

Top 19 Discovery layer providers worldwide

RevenueBase identified 64 discovery layer providers worldwide as of September 2026 and tracks 3,120 professional contacts across them, including 217 with verified work emails. The United States is the largest market and Boston the largest hub.

This list covers discovery layer providers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for discovery layer providers follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
64Companies
3,120Contacts tracked
217Verified emails
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The 19 largest discovery layer providers worldwide

Ranked by team size
Top 19 of 64 discovery layer providers worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to discovery layer providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 19, 2026201-500205 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceSanta Monica, CA, United StatesHQ checked Sep 19, 202651-20046 contacts →

Indirect evidence

“Autonomy is a technology company on a mission to make access to mobility easy and affordable through car subscriptions.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceBrasilia, BrazilHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“A Dataeasy, fundada em 2003 com sede em Goiânia e escritórios em Brasília, São Paulo e Campo Grande, lidera em todo o território brasileiro nos seguimentos de ECM (Enterprise…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceBelfast, United KingdomHQ checked Sep 19, 202611-5023 contacts →

Indirect evidence

“Human-centric technology.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceEspoo, FinlandHQ checked Sep 19, 202611-5023 contacts →

Indirect evidence

“Profium provides you with software products and solutions that help you to enrich, find and manage your information assets”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceDresden, GermanyHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“INTERGATOR is a state-of-the-art enterprise search that can be used as single-point-of-information-access to search and display all documents and data of a company or organization.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceAuckland, New ZealandHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“We help corporates and government organisations find what matters most: useful information.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceAldie, VA, United StatesHQ checked Sep 19, 20261-109 contacts →

Indirect evidence

“Esgisoft is an IT consulting firm specialized in Enterprise Content Management and Enterprise Search/Information retrieval/eDiscovery Solutions for enterprise customers worldwide.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceBangalore, IndiaHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“SearchScale solutions are purpose built to satisfy requirements of advanced level customers who are typically leaders in their own domains.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceCambridge, MA, United StatesHQ checked Sep 19, 202611-505 contacts →

Indirect evidence

“Imagine a workplace where knowledge navigates to people.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceBalingen, GermanyHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

“Our objective is the intelligent processing and central administration of all information that are important for your demands.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceBoston, MA, United StatesHQ checked Sep 19, 202611-503 contacts →

Partial evidence

“A leader in cognitive search and knowledge discovery.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceGatineau, QC, CanadaHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

“Norconex provides enterprise search and content management solutions, specializing in scalable web crawling, data extraction, and indexing tools like Norconex Crawlers.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceBoston, MA, United StatesHQ checked Sep 19, 20261-102 contacts →

Partial evidence

“ACCESS TO INFORMATION IS A HUMAN RIGHT Kazark is a Search & Discovery engine with a revolutionary and intuitive interface that better organizes content improving navigation.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceChicago, IL, United StatesHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Provider of enterprise search software”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceColorado Springs, CO, United StatesHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“Xpriori was established in September 2003 to fulfill the vision of providing the infrastructure engine and unique solutions for the next generation of information management.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceNetherlandsHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“NubiloSoft accelerates software development by providing companies with professional, ready-to-go components and tools.”

Source: RevenueBase Database · checked Sep 19, 2026
18Partial evidenceUnited StatesHQ checked Sep 19, 20261-101 contacts →

Partial evidence

“Leveraging market-leading enterprise search tools with years of implementation knowledge and experience - LTG can assist your business in discovering structured and unstructured…”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceWindham, NH, United StatesHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

“NorthRidge Software specializes in advanced search solutions that enable organizations to fully leverage investments in content assets and enterprise applications.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 19 of 64 discovery layer providers worldwide

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Discovery layer providers worldwide at a glance

As of Sep 19, 2026
7.0%Verified-email coverage
48.8Average contacts per company
1-10Median size (employees)
4.7%Largest-city concentration · Boston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
20
51-200
4
201-500
3
1,001-5,000
1

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among discovery layer providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for discovery layer providers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “discovery layer providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names discovery layer providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among discovery layer providers, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 217 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 19, 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.

Discovery layer providers by location

1 lists · largest first

Every Discovery layer providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names discovery layer providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many discovery layer providers are there worldwide?

RevenueBase identified 64 discovery layer providers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Lucidworks, headquartered in San Francisco, tops this list with the largest team on record.

Which country has the most discovery layer providers?

The United States leads with 25 companies. Every discovery layer providers list by country and city is linked on this page.

Which city has the most discovery layer providers?

Boston leads with 3 headquartered companies, followed by San Francisco (3) and Cambridge (2).

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 217 verified decision-maker contacts tracked across these 64 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 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.