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Startup · United States

WindBorne Systems

HQ Palo AltoFounded 201951-200 employees

WindBorne Systems is revolutionizing weather forecasting by deploying a constellation of smart, long-duration balloons that collect unparalleled atmospheric data across the globe. By integrating this data with advanced AI models, they deliver exceptionally accurate weather forecasts, addressing significant data gaps in atmospheric analysis. Founded in 2019 by a team of former SpaceX engineers, WindBorne has already launched over 2,000 balloons and established partnerships with organizations like NOAA and the US Air Force. Their innovative approach promises to enhance our ability to predict and respond to extreme weather events, paving the way for a more resilient future.

Startup
Website
Total raised
$67.9M
5 rounds
Last round
$37.0M
Series B · Aug 5, 2026
Systems
4

Funding5 rounds · $67.9M

Equity raised
$67.9M
Latest
$37.0MSeries B · Aug 5, 2026
Cumulative raised$67.9M
May 12, 2023Aug 5, 2026

Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.

Systems4

Guardian

Waitlisted disaster-preparedness software platform for electric utilities.

Maturity not rated

MetaMesh

Weather-forecasting model that blends WeatherMesh with other forecast models.

Maturity not rated

WeatherMesh

AI weather-forecasting model incorporating atmospheric observations.

Maturity not rated

Newest unveiled first. Open a system for its milestone timeline, components and sources.

Supply Chain1 facility

Facilities1

  • WindBorne Redwood Shores headquarters
    Headquarters · Redwood City, CA, United States
    Operating
    Confirmed

People7

All 7 people →

Hiring Observations10 observed listings

View all 19 listings →

A sample of observed listings, not a total vacancy count. Availability may have changed since collection. Categories are inferred from job titles.

Company Metrics

LinkedIn employee profiles
104
Observed Oct 11, 2026
Bright Data / LinkedIn · Source ↗
LinkedIn followers
9,107
Observed Oct 11, 2026
Bright Data / LinkedIn · Source ↗

Employee-profile counts reflect LinkedIn profiles associated with the company, not verified headcount. One observation establishes a baseline; it does not establish growth.

Sources15

Show all 15 sources and supporting evidence

Profile2

  1. 1
    CompanyWindBorne | Better Forecasts

    Windborne Systems · Supports Organization · name

    “WindBorne Systems”
  2. 2
    DatabaseWindBorne Systems - Crunchbase company profile

    Crunchbase · Supports Organization · legal name

    “legal_name: WindBorne Systems Inc.”

Systems3

  1. 3
    CompanyWeatherMesh AI Weather Forecast Model | WindBorne

    WindBorne Systems · Supports System

    “**Now introducing MetaMesh, the only multi-model blend that ingests WeatherMesh** **MetaMesh** is WindBorne's first multi-model blend. Incorporating WeatherMesh, our AI forecast model initialized with our proprietary balloon observations, MetaMesh has access to atmospheric signals that no other blend can replicate.”
  2. 4
    CompanyGlobal Weather Balloon Data | Atlas Constellation | WindBorne

    WindBorne Systems · Supports System

    “Atlas is powered by autonomous, long-duration high-altitude balloons called **Global Sounding Balloons (GSBs)** that drastically improve upon legacy weather balloons in performance, endurance, sustainability, and cost.”
  3. 5
    CompanyOutage Prediction Models for Utilities | WindBorne

    WindBorne Systems · Supports System

    “WINDBORNE GUARDIAN ### Reduce restoration times with balloon-powered outage predictions A disaster preparedness platform built for climate-resilient utilities. Predict storm impacts & navigate weather uncertainty with meteorologist-grade clarity”

Funding6

  1. 6
    Regulatory filingWindBorne Systems Inc. - SEC Form D (0001979342-26-000003)

    U.S. Securities and Exchange Commission · Aug 17, 2026 · Supports Funding round

    “Total Amount Sold $ 37,124,969 USD”
  2. 7
    CompanyWindBorne Systems Raises $37 Million to Build the World's Weather Intelligence Infrastructure

    WindBorne Systems · Aug 5, 2026 · Supports Funding round · amount

    “WindBorne Systems, the weather intelligence company building the world's largest atmospheric sensing network and the AI models it powers, today announced $37 million in Series B funding, bringing total funding to more than $62 million. The oversubscribed round was co-led by Khosla Ventures and Galvanize, with participation from Translink Capital, Biprogy, Lux Capital, and existing investors.”
  3. 8
    CompanyWindBorne Raises $15 Million to Scale Its Balloon Constellation and Bring AI Weather Modeling to the Fight Against Climate Change

    WindBorne Systems · Jun 3, 2024 · Supports Funding round · amount, Funding round · stage

    “WindBorne Systems, the world’s largest atmospheric sensing system and most accurate AI weather model, announced today $15 million in Series A funding led by Khosla Ventures, which earlier led WindBorne’s pre-seed round in 2019 and will take a board seat. Existing investors Footwork VC, Pear VC, and Convective Capital also participated in the round.”
  4. 9
    Regulatory filingWindBorne Systems Inc. - SEC Form D (0001979342-24-000001)

    U.S. Securities and Exchange Commission · May 29, 2024 · Supports Funding round

    “Total Amount Sold $ 14,999,997 USD”
  5. 10
    Regulatory filingWindBorne Systems Inc. - SEC Form D/A (0001979342-23-000002)

    U.S. Securities and Exchange Commission · Jul 7, 2023 · Supports Funding round · amount

    “Total Amount Sold $ 9,869,770 USD”
  6. 11
    NewsWindBorne Systems Raises $6M Seed Round to Improve Weather Forecasts with Balloons, Backed by Footwork, Khosla Ventures, Pear VC

    Business Wire · Jun 22, 2023 · Supports Funding round · amount

    “WindBorne Systems Inc., a weather and climate tech company with an ultra cost-effective balloon-based data source, announced today that it has closed a seed financing round of $6M.”

Supply chain2

  1. 12
    CompanyCareers | WindBorne

    Supports Facility, Organization, Role

    “WindBorne Systems** is based in Redwood Shores, California.”
  2. 13
    DatabaseWindBorne Systems - Linkedin company profile

    LinkedIn · Supports Facility, Organization · employee range, Organization metric · employees in linkedin, Organization metric · followers

    “headquarters: Redwood City, California”

People1

  1. 14
    OtherBlack Flag 100

    Black Flag · Supports Organization, Role

    “WindBorne Systems is revolutionizing weather forecasting by deploying a constellation of smart, long-duration balloons that collect unparalleled atmospheric”

Other1

  1. 15
    CompanyWindBorne Systems careers

    Supports Job posting

    “Lead Software Engineer - Gov Platforms”

Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.