Climate/Energy
Data/Analytics
Hardware/Robotics

Rainmaker Technology Corporation

Drone-based cloud seeding and water production

CORE INFO

$100M
Total Funding
Series B
Round
2023
Founded
11-50
Team Size
El Segundo, California
Headquarters

Rainmaker sells cloud-seeding infrastructure and field services to water agencies, governments, agricultural stakeholders, and other organizations managing water supplies. Its system combines custom drones, weather forecasting, atmospheric sensors, radar, satellite data, and precipitation measurement to support additional rain or snow from suitable existing clouds.

  • Precipitation impact: Rainmaker reports more than 145 million verified gallons of additional precipitation from its cloud-seeding operations.fastcompany.com
  • Washington Post coverage highlighted Rainmaker's reported precipitation results while noting that outside scientists said the underlying data still needed peer review.washingtonpost.com

WHY WE WOULD WORK AT RAINMAKER TECHNOLOGY CORPORATION

Work on Water Scarcity

Help develop proven technologies that combat water scarcity and support aquifer recharge, watershed management, agriculture, and ecosystem restoration.

Build the Water Platform

Work across Stratus forecasting, Elijah autonomous aircraft, atmospheric sensors, radar, satellite data, and precipitation-validation tools—not just a single product.

Advance Atmospheric Science

Join research spanning cloud microphysics, aerosol-cloud interactions, radar meteorology, quantitative precipitation estimation, and machine-learning-based atmospheric analysis.

Scale Deep-Tech Operations

Help expand a 2023-founded company backed by a $100 million Series B, operating cloud-seeding programs across western U.S. states and investing in national-lab and university research.

Collaborate Across Disciplines

Work alongside atmospheric scientists, radar specialists, data analysts, material scientists, engineers, and field operators in a compact 11–50-person organization.

Measure Real-World Impact

Contribute to missions designed to produce measurable precipitation, with Rainmaker reporting 145 million verified gallons and 82 unambiguous seeding signatures validated through radar and satellite data.

MARKET AND TRACTION

GROWTH TACTICS

  • Expanding cloud-seeding infrastructure and operational services for water agencies, governments, agricultural stakeholders, hydropower operators, and other organizations focused on water availability.

  • Scaling operations across western U.S. states while investing in atmospheric research, national-laboratory and university partnerships, and improved cloud-seeding economics.
  • NOTABLE CUSTOMERS

  • Grand County Water & Sewer Service Agency in Utah has publicly identified Rainmaker as a provider of cloud-seeding professional services for portions of the La Sal and Abajo mountains.

  • Rainmaker has also operated with Utah and Idaho water agencies and coordinated with Idaho agencies and Idaho Power on cloud-seeding operations.
  • KEY METRICS

    ✦ KEY METRIC
  • Rainmaker reports more than 145 million verified gallons of additional precipitation, including 82 unambiguous seeding signatures identified through radar and satellite data.

  • The company reports operations across Utah, Idaho, Oregon, California, and Colorado, and announced a $100 million Series B in September 2026.
  • COMPETITIVE ADVANTAGE

  • Rainmaker operates a vertically integrated platform combining its Stratus forecasting and nowcasting software, custom Elijah UAVs, atmospheric sensors, radar, satellite data, and precipitation-validation tools.

  • Its system is designed to target suitable existing clouds and measure outcomes using telemetry, quantitative precipitation estimation, radar, and satellite-based validation rather than attempting to create clouds from nothing.
  • MARKET POSITION

  • Rainmaker is positioned as a climate and atmospheric-science company serving public-sector and infrastructure-oriented water markets, including watershed management, aquifer recharge, hydropower, ecosystem restoration, wildfire resilience, agriculture, and snowpack enhancement.

  • The company primarily uses glaciogenic cloud seeding and sells infrastructure, field operations, and ongoing services, with a longer-term ambition to commercialize additional water production as an outcome.
  • PRODUCT AND TECH

    Stratus Forecasting Platform

    Rainmaker's proprietary Stratus platform combines weather forecasting, nowcasting, and more than 20 data integrations to identify suitable cloud-seeding conditions. It supports mission planning and real-time operational monitoring.

    Elijah UAV Systems

    Purpose-built Elijah unmanned aircraft carry atmospheric sensors and aerosol-dispersal systems into suitable clouds. The aircraft are designed for autonomous, high-altitude flight in cold and severe icing conditions.

    Atmospheric Sensing

    Integrated sensors collect atmospheric and flight data to characterize cloud conditions and guide seeding operations. Rainmaker applies atmospheric science and cloud-microphysics research to improve targeting and delivery.

    Radar Validation Systems

    Rainmaker uses 25 kW X-band radar, NEXRAD, GOES, polar-orbiting satellite data, and quantitative precipitation estimation to evaluate seeding outcomes. These tools support precipitation measurement and data-driven attribution.

    Cloud-Seeding Services

    Rainmaker provides glaciogenic cloud-seeding infrastructure and operational services for water agencies, governments, agricultural stakeholders, and other organizations. Its approach enhances precipitation from suitable existing clouds rather than creating clouds from nothing.

    COMPANY CULTURE

    Values

  • Combat water scarcity and expand natural abundance

  • Apply scientific rigor to real-world climate challenges

  • Work with nature rather than attempting to create weather from nothing

  • Pursue public-good-oriented research
  • Operating Principles

  • Be transparent about what cloud seeding can and cannot do

  • Validate outcomes with radar, satellite data, and precipitation analysis

  • Operate responsibly and engage affected communities

  • Iterate quickly while maintaining technical discipline
  • Work Style

  • Small, highly technical team spanning atmospheric science, software, hardware, and operations

  • Vertically integrated approach from forecasting and aircraft to field deployment and validation

  • Mission-driven work focused on practical water-availability outcomes

  • Cross-functional collaboration across research and engineering
  • Learning & Growth

  • Purposeful research addressing an existential environmental challenge

  • Priority funding for atmospheric research and experimentation

  • Collaboration with national laboratories, universities, and scientific advisors

  • Opportunities to work across emerging drone, radar, and atmospheric technologies