Company lists · Data refreshed September 2026

Top 13 Health risk assessment platform companies based in San Francisco, United States

RevenueBase identified 27 health risk assessment platform companies headquartered in San Francisco, United States as of September 2026 and tracks 888 professional contacts across them, including 411 with verified work emails. Across the United States, New York is the largest hub for this category (35 companies); San Francisco follows with 27.

This list covers health risk assessment platform companies 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 28, 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 28, 2026 86% judged on-target in blind review
27Companies
888Contacts tracked
411Verified emails
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The 13 largest health risk assessment platform companies based in San Francisco, United States

Ranked by team size
Top 13 of 27 health risk assessment platform companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to health risk assessment platform companies: 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
1Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 2026501-1,000566 contacts →

Partial evidence

“At Vida, we help people get better, and we’re helping the healthcare system get better, too.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-20076 contacts →

Strong evidence

“ZestyAI is the leading risk platform trusted by Property and Casualty insurers and regulators across the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5066 contacts →

Strong evidence

“all.health has developed a comprehensive preventative and proactive healthcare platform that combines clinical-grade sensors, machine learning, patient histories, insurance claims…”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-20064 contacts →

Partial evidence

“Our mission is to break down barriers that limit people from getting quality healthcare, empowering them to live happier, healthier lives.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“Build once.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceSan Francisco, United StatesHQ checked Sep 28, 202611-5010 contacts →

Partial evidence

“Allelica develops clinical Polygenic Risk Score (PRS) tests to prevent cardiovascular disease and cancer.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261-109 contacts →

Partial evidence

“Preffect is a dynamic startup driven to revolutionizing Health and Wellness through the power of AI and innovative product experiences.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-506 contacts →

Partial evidence

“Well Advised is a digital health company that helps consumers find optimal healthcare coverage and clinical care as their financial and health circumstances change.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“Blood tests are a high resolution snapshot of what’s happening inside organs, tissues and cells.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“RENDLE has created a simple, scalable and effective way to improve the health and happiness of populations by using data analytics and predictive metrics for lifestyle improvement.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202611-501 contacts →

Indirect evidence

“Corporate Wellness starts with you.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Wellest is GPS for health.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Quantify is a digital health company pioneering a cause-focused, data-driven approach to resolving chronic symptoms.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 13 of 27 health risk assessment platform companies based in San Francisco, United States

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Health risk assessment platform companies based in San Francisco, United States at a glance

As of Sep 28, 2026
46.3%Verified-email coverage
32.9Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
11
51-200
3
501-1,000
2

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 27 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 health risk assessment platform companies, 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 “health risk assessment platform companies”. 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 health risk assessment platform companies), 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 health risk assessment platform companies, 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, 411 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 28, 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.

Health risk assessment platform companies by metro in the United States

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 health risk assessment platform companies, 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 health risk assessment platform companies are there based in San Francisco, United States?

RevenueBase identified 27 health risk assessment platform companies 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?

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

Which city in the United States has the most health risk assessment platform companies?

New York leads the United States with 35 headquartered companies, followed by San Francisco (27) and Chicago (18).

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 411 verified decision-maker contacts tracked across these 27 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 28, 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.