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Zephyr Health
Helps medical companies make better and faster decisions
About Zephyr Health
Zephyr Health, established in 2011, operated as an insights-as-a-service provider focused on the life sciences sector. The company was founded by William King, who drew upon his extensive background in global leadership roles at Johnson & Johnson to address the challenge of leveraging disconnected data in healthcare. His experience in sales, marketing, and strategy within the pharmaceutical industry fueled his passion for creating technology solutions to improve efficiency and strategic decision-making.
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The firm's core business was centered on a big data analytics platform, later known as Zephyr Illuminate, designed to organize and visualize vast amounts of global health data. By employing proprietary algorithms, the platform connected disparate data sources—such as public health records from PubMed and the CMS, and conference data—to deliver actionable insights for its clients. The business model was structured as an enterprise software subscription, providing predictive customer and market insights. This service enabled clients to make more informed decisions across the entire product lifecycle, from pre-launch to maturity.
Zephyr Health served a client base that included large pharmaceutical corporations, biopharmaceutical firms, medical device companies, and clinical research organizations (CROs). The platform's primary benefit was its ability to help these organizations identify and engage with the right physicians and institutions, optimize clinical trials, and accelerate the commercialization of new treatments. By doing so, it aimed to significantly reduce the time and expense associated with bringing new therapies to market. The company attracted notable venture backing from investors including Kleiner Perkins, Icon Ventures, and Google Ventures. A significant milestone occurred in October 2018 when Zephyr Health was acquired by Anju Software, a life sciences software platform, integrating its data analytics capabilities into Anju's broader suite of solutions. Keywords: life sciences data, pharmaceutical analytics, medical device insights, healthcare data platform, clinical trial optimization, KOL optimization, physician data, treatment data, product lifecycle performance, big data healthcare, commercializing drugs, market insights pharma, biopharmaceutical intelligence, Zephyr Illuminate, William King, Anju Software acquisition, healthcare business intelligence, drug development analytics, CRO data solutions, customer targeting pharma
At a glance
- Status
- Acquired
- Founded
- 2011
- Headquarters
- San Francisco, United States
- Employees
- 18
- Open positions
- None listed
- Dealroom signal
- 42.5/100
- Industry
- Health, Enterprise Software
- Sub-industry
- BioTechnology
- Sector
- Biotech & Life Sciences, Analytics, Biotechnology, Hard Tech, DT and LS, science-based
- Technology
- Deep Tech
- Business model
- SaaS
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning Zephyr Health.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| ACQUISITION✓Exit | Oct 2018 | $0 | — | Anju Software | — |
| SERIES C✓Equity / VC | Aug 2015 | $18M | $70M | Kleiner Perkins · Icon Ventures | — |
Growth signals
Latest recorded traffic for Zephyr Health is 250 monthly website visits. Zephyr Health's team grew 5.9% over the past year.
Similar companies
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A2 investors entered at this stage
Icon Ventures
Kleiner Perkins
Other known investors2 additional known investors
Anju Software
GV
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Zephyr Health on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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