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Artificial Intelligence

WindBorne Systems: Funding, Investors & Team (Sep 2026)

WindBorne creates and manages a network of long-lasting intelligent weather balloons that gather atmospheric information for various purposes, such as predicting weather, researching climate, and monitoring the environment. Equipped with sensors, these high-altitude balloons collect detailed data from different levels of the atmosphere, leading to precise and thorough atmospheric measurements. By offering high-quality atmospheric data, WindBorne Systems aids in improving weather forecasts, ultimately assisting in reducing the effects of extreme weather conditions.

windbornesystems.com LinkedIn Stanford, United States 11-50 employees Founded 2019
Analytics Artificial Intelligence (AI) Geospatial B2B
Total raised
$63.0M
Rounds
4
Latest
Series B
Aug 2026

WindBorne Systems has raised $63.0M across 4 funding rounds on record, the most recent a Series B of $37.0M announced in Aug 2026.

That round is above the $5.7M median round size for Artificial Intelligence companies tracked on FundedIQ over the last two years.

WindBorne Systems Company Profile and Key Stats

Total funding raised
$63.0M
across 4 rounds on record
Funding rounds on record
4
Latest funding round
Series B
$37.0M in Aug 2026
Employees
11-50
reported band
Founded
2019
Headquarters
Stanford, United States
Investors on record
13
5 named below

Latest funding round on record: Aug 2026.

WindBorne Systems Funding Rounds

Date
Round
Amount
Series B
$37.0M
Undisclosed round
$5.0M
Undisclosed round
$15.0M
Seed
$6.0M

WindBorne Systems raised $6.0M in a Seed announced in Jun 2023.

11 months later, an undisclosed round of $15.0M was announced in May 2024.

7 months later, an undisclosed round of $5.0M was announced in Dec 2024.

1.7 years later, a Series B of $37.0M was announced in Aug 2026.

WindBorne Systems Investors

Khosla Ventures Pear VC Lux Capital Bill & Melinda Gates Foundation Galvanize Climate Solutions

13 investors are recorded in total; the 5 named above are those the record identifies.

WindBorne Systems Founders and Leadership Team

Name
Role
Contact
John Dean
Founder
Locked
Kai Marshland
Founder
Locked
Mei-Lan Steimle
COO
Locked

Contact details for the WindBorne Systems team: 3 of 3 have an email address on file, 2 have a LinkedIn profile.

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WindBorne Systems Funding Compared to Other Artificial Intelligence Startups

Segment
Companies
Median round
29,795
$7.5M
4,307
$30M

WindBorne Systems' latest round of $37.0M is above the median round in Artificial Intelligence. Medians cover the last 24 months of disclosed rounds.

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WindBorne Systems Funding FAQs

What does WindBorne Systems do?

WindBorne creates and manages a network of long-lasting intelligent weather balloons that gather atmospheric information for various purposes, such as predicting weather, researching climate, and monitoring the environment. Equipped with sensors, these high-altitude balloons collect detailed data from different levels of the atmosphere, leading to precise and thorough atmospheric measurements. By offering high-quality atmospheric data, WindBorne Systems aids in improving weather forecasts, ultimately assisting in reducing the effects of extreme weather conditions.

How much funding has WindBorne Systems raised?

WindBorne Systems has raised $63.0M across 4 rounds on record. The most recent is a Series B of $37.0M announced in Aug 2026.

When did WindBorne Systems last raise funding?

WindBorne Systems' most recent funding round on record is a Series B of $37.0M, announced in Aug 2026.

Who has invested in WindBorne Systems?

Investors on record for WindBorne Systems include Khosla Ventures, Pear VC, Lux Capital, Bill & Melinda Gates Foundation, Galvanize Climate Solutions. FundedIQ records 13 investors in total.

Who founded WindBorne Systems?

FundedIQ lists John Dean (Founder), Kai Marshland (Founder) at WindBorne Systems.

Where is WindBorne Systems headquartered?

WindBorne Systems is based in Stanford, California, United States.

How many employees does WindBorne Systems have?

WindBorne Systems is in the 11-50 employee band.

When was WindBorne Systems founded?

WindBorne Systems was founded in 2019.

How does WindBorne Systems' funding compare to other Artificial Intelligence startups?

WindBorne Systems' latest round of $37.0M is above the $5.7M median round size for Artificial Intelligence companies on FundedIQ across 7,234 tracked companies over the last two years.

About FundedIQ's WindBorne Systems Funding Data

FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.

Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for WindBorne Systems is left off this page rather than filled in.

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