Company lists · Data refreshed September 2026

Top 14 Search intelligence platforms based in San Francisco, United States

RevenueBase identified 31 search intelligence platforms headquartered in San Francisco, United States as of September 2026 and tracks 1,135 professional contacts across them, including 404 with verified work emails. Across the United States, San Francisco is the largest hub for this category.

This list covers search intelligence platforms headquartered in San Francisco, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

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 29, 2026 86% judged on-target in blind review
31Companies
1,135Contacts tracked
404Verified emails
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The 14 largest search intelligence platforms based in San Francisco, United States

Ranked by team size
Top 14 of 31 search intelligence platforms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to search intelligence platforms: 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
1Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500671 contacts →

Strong evidence

“Constructor is the only search and discovery platform designed exclusively for commerce where conversions matter.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-500205 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-50062 contacts →

Strong evidence

“Sentieo, an AlphaSense company, provides the first financial intelligence platform specifically designed for the research needs of investors.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-5016 contacts →

Partial evidence

“Action on AI Search with Athena.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 2026201-50013 contacts →

Partial evidence

“Jumpshot delivers digital intelligence from within the Internet’s most valuable walled gardens.”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-507 contacts →

Partial evidence

“CanIRank studies your website and competitors to identify specific actions you can take right now to grow your search engine traffic.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceSan Francisco, United StatesHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“TopK focuses on providing the most relevant search results while your engineering teams can focus on what matters the most - building your product.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Extruct AI is a state-of-the-art company search, lookalike and research engine.”

Source: RevenueBase Database · checked Sep 29, 2026
9Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-504 contacts →

Strong evidence

“Thred tracks account-level research, queries, and click-throughs across websites ranking in AI search platforms like ChatGPT, giving you realtime buying signals, insights, and…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

“Mushi Labs was founded in 2014.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202611-502 contacts →

Indirect evidence

“Wookey Technologies' is transformation system for finding necessary information to improve the experience of the internet.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261-102 contacts →

Partial evidence

“Lumona is an AI-enabled search engine featuring perspectives from social media to help you understand your search results.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-2001 contacts →

Indirect evidence

“When someone asks ChatGPT or Perplexity for the best product in a category, the model fetches live pages and cites them.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“At MeasureSEO we offer tools and services to help grow your search marketing and make it measurable.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 14 of 31 search intelligence platforms based in San Francisco, United States

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Search intelligence platforms based in San Francisco, United States at a glance

As of Sep 29, 2026
35.6%Verified-email coverage
36.6Average contacts per company
11-50Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
12
11-50
12
51-200
3
201-500
4

Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 31 companies.

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 intelligence platforms, 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.
What qualifies
Companies headquartered in San Francisco, United States whose own description of what they do matches “search intelligence platforms”. 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 search intelligence platforms), 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 search intelligence platforms, and records with no verified work email. Companies headquartered outside San Francisco 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 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, 404 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 29, 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.

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 search intelligence platforms, 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 search intelligence platforms are there based in San Francisco, United States?

RevenueBase identified 31 search intelligence platforms headquartered in San Francisco, 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?

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

Which city in the United States has the most search intelligence platforms?

San Francisco leads the United States with 31 headquartered companies, followed by New York (27) and Austin (9).

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 404 verified decision-maker contacts tracked across these 31 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 29, 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.