Planet OS
Sunnyvale, US · Founded 2012 · Delaware corporation · 2 employees on LinkedIn · 1 known investors
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Planet OS provides streamlined access to weather, climate and environmental data from leading data providers.
Also known as Planet OS
Founders & leadership
Planet OS was founded in 2012 by Rainer Sternfeld and Kalle Kagi.
Board
Investors · 1
Reported raises · per SEC filings
Form D private placements$5M disclosed across 1 round · 2016
▶$5MraisedMar 2016 · 5 investors · Other TechnologyRule 506(b)
- Talal ShamoonDirector
- Rainer SternfeldExecutive Officer, Director
- Kalle KagiExecutive Officer, Director
- Offering amount
- $13M
- Amount sold
- $5M
- Proceeds to insiders
- $218.7K
- First sale
- Mar 2016
- Incorporated
- Corporation, Delaware, 2012
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Planet OS offers access to weather, climate and environmental datasets aggregated from external data providers, positioning its service as a way for customers to avoid building and maintaining their own data-integration pipelines. Its stated sector focus spans research and education, climate adaptation and broader climate solutions, including air quality monitoring, water quality monitoring and smart grids.
The company maintains public developer-facing resources, including an API documentation and code-examples repository, a collection of Jupyter notebooks, public demos, and open-source front-end projects such as a multi-renderer charts library (cirrusjs) and reusable UI components for building data applications. Repository activity spans 2016 through 2023.
▸Full profile — market position, technology, go-to-market, geography
Market position
Positioned as an intermediary between environmental data providers and end users, emphasizing reduced data-integration effort for customers.
Technology
Planet OS aggregates weather, climate and environmental data from multiple providers and exposes it through an API, with public documentation, code examples and Jupyter notebooks supporting integration. Its public repositories include JavaScript charting and UI component libraries for data applications, a JavaScript OPeNDAP client (jsdap), and Scala- and Java-based components including forks of an Elasticsearch Scala client and a Java implementation of the zarr API.
Go-to-market
Materials indicate an orientation toward organizations that consume environmental data, including research and education users and customers working in climate adaptation, air and water quality monitoring, and smart grids; developer-oriented API documentation, notebooks and demos suggest technical users integrating data programmatically.
Geography
Listed with a location in Amsterdam, Netherlands.
Compiled by commissioned research from 2 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
2 people who came through Planet OS went on to found or lead other companies.
Legal entities · 1
corporate structure▸Research sources · 2
primary sources listed
- Planet OS · GitHubgithub.com · web
2 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Planet OS do?
- Planet OS provides streamlined access to weather, climate and environmental data from leading data providers.
- Who founded Planet OS?
- Planet OS was founded by Rainer Sternfeld, Kalle Kagi in 2012.
- Who are Planet OS's investors?
- Planet OS's investors include Trind Ventures.
- How much funding has Planet OS raised?
- Planet OS has disclosed $5M raised across 1 round.
- Where is Planet OS headquartered?
- Planet OS is headquartered in Sunnyvale, US.