Hydroclimate Resilience Startups

20 Companies 4 Categories Climate Solutions

Climate change is making water less reliable. Rain increasingly comes at the wrong time, in the wrong place, or in the wrong quantity. This landscape tracks startups built for that volatility. They help observe and predict changing water conditions, understand flood and drought risk, and capture excess water so it can be used later.

Filter and ordering

Category

Water Observation & Forecasting

4 companies

Startups that improve how we observe and predict rainfall and local water conditions. Better real-time data matters as precipitation becomes more erratic and historical averages become less reliable.

Precip

precip.ai

Precip builds AI weather models and a weather API for hyperlocal rainfall and snowfall observation, forecasts, and historical precipitation data.

3 Employees Seed Stage 2023 Founded
Trajectory Signals Strength Slight

Confidence: Medium

Aqunia

aqunia.com

Aqunia builds flood prediction and water resource forecasting tools that combine AI, physical hydrological models, satellite data, and limited ground observations to help governments and enterprises monitor and anticipate local water conditions.

12 team members incl. part-time & contractors Employees Unknown Stage 2025 Founded
Trajectory Signals Strength Moderate

Confidence: High

Rainbow Weather

rainbow.ai

Rainbow Weather builds an AI weather platform and API that delivers hyperlocal minute by minute precipitation forecasts and rain maps.

11-50 employees Employees Seed Stage 2021 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

WeatherXM

weatherxm.com

WeatherXM builds a community powered network of weather stations that collects hyperlocal observations and turns them into real time weather data and forecasts.

11-50 employees Employees Series A Stage 2022 Founded
Trajectory Signals Strength Slight

Confidence: Low

Category

Flood Intelligence & Response

7 companies

Startups that predict floods, map their impact, and help users respond. As extreme rainfall becomes more frequent, they turn flood risk into information that can support concrete decisions.

FloodMapp

floodmapp.com

FloodMapp builds real time flood forecasting and live inundation mapping software that helps emergency managers, government agencies, and infrastructure operators plan, respond, and recover from flooding.

11-50 Employees Seed Stage 2018 Founded
Trajectory Signals Strength Slight

Confidence: Medium

Floodbase

floodbase.com

Floodbase is a geospatial intelligence company that uses satellite imagery, AI, and flood monitoring data to help insurers, governments, and other organizations design, underwrite, and manage parametric flood insurance and flood-risk decisions.

11-50 employees Employees Series A Stage 2015 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

Previsico

previsico.com

Previsico builds live flood forecasting software that helps organisations predict flood risk, map likely impacts, and act before damage happens.

about 40 Employees Series A Stage 2019 Founded
Trajectory Signals Strength Slight

Confidence: Medium

7Analytics

7analytics.ai

7Analytics builds flood risk intelligence software that predicts localized flooding and helps insurers, banks, and asset owners price risk, plan, and respond.

about 20 Employees Seed Stage 2020 Founded
Trajectory Signals Strength Slight

Confidence: Medium

Aurassure

aurassure.com

Aurassure builds AI powered climate intelligence systems that help governments, cities, and enterprises monitor environmental conditions and respond to risks such as flooding, air quality, and extreme weather.

51-200 employees Employees Unknown Stage 2022 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

Green Stream

greenstream.com

Green Stream builds flood and weather early warning systems that combine environmental sensors, communications, cloud software, and real time data for public safety teams, environmental professionals, and property owners.

2 to 10 Employees Unknown Stage 2017 Founded
Trajectory Signals Strength Slight

Confidence: Medium

StormHarvester

stormharvester.com

StormHarvester builds AI software for wastewater utilities that combines live network data, machine learning, and rainfall intelligence to predict and prevent flooding, pollution, blockages, and other network failures.

100-149 Employees Series A Stage 2017 Founded
Trajectory Signals Strength Slight

Confidence: Medium

Category

Drought, Groundwater & Water Availability Intelligence

6 companies

Startups that improve visibility into water scarcity, groundwater conditions, and future supply. Their products help users understand how available water is changing as dry periods become longer and less predictable.

HydroGeoTwin

hydrogeotwin.com

HydroGeoTwin builds a cloud based water intelligence platform that combines satellite, climate, in situ, AI, and modeling data to forecast groundwater and surface water availability and support water management decisions.

2 to 10 employees Employees Pre Seed Stage 2025 Founded
Trajectory Signals Strength

Confidence: Low

iFLUX

iflux.be

iFLUX builds real time groundwater monitoring solutions that help water utilities, environmental teams, and infrastructure operators understand groundwater flow, contamination spread, and water availability.

11-50 employees Employees Unknown Stage 2017 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

G-Strata

g-strata.com

G-Strata builds groundwater intelligence tools that help teams find, characterize, and manage underground water before drilling. Its platform combines geophysical sensing, AI, and hydrogeological data to reduce dry well risk and support aquifer planning.

10 team members listed Employees Unknown Stage 2016 Founded
Trajectory Signals Strength Slight

Confidence: Medium

PlanetAI Space Group

planetai.space

PlanetAI Space builds satellite and AI based software that measures environmental risk, natural capital, and groundwater conditions for decision makers.

29 Employees Unknown Stage 2022 Founded
Trajectory Signals Strength Slight

Confidence: Medium

Waterplan

waterplan.com

Waterplan is an AI native platform that helps companies measure, monitor, and report water risk so they can better manage water scarcity, operational disruption, and stewardship goals.

51-200 employees Employees Series A Stage 2020 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

Hydro-EO

hydro-eo.com

Hydro-EO is the Portugal-based subsidiary of H2O Geomatics focused on satellite water intelligence for drought, water availability, floods, and other changing water systems.

unknown Employees Unknown Stage 2026 Founded
Trajectory Signals Strength Weak

Confidence: Low

Category

Stormwater Capture, Recharge & Buffering

3 companies

Startups that capture excess rainfall and make it useful later. Their systems reduce pressure during wet periods while helping build a more reliable water reserve for dry ones.

FieldFactors

fieldfactors.com

FieldFactors is a Dutch water technology company that captures, treats, stores, and reuses rainwater locally for cities and sites that need better stormwater buffering and water resilience.

11-50 employees Employees Seed Stage 2016 Founded
Trajectory Signals Strength Moderate

Confidence: Medium

RainGrid

raingrid.com

RainGrid builds intelligent rain retention and reuse systems that capture roof runoff, reduce stormwater overflow, and make stored water available for later use.

2-10 Employees Unknown Stage 2012 Founded
Trajectory Signals Strength

Confidence: Low

OptiRTC

optirtc.com

OptiRTC builds cloud based continuous monitoring and adaptive control software for stormwater systems. Its platform uses weather forecasts, sensors, and automated controls to improve storage, release, reuse, flood resilience, and water quality.

11-50 employees Employees Acquired Stage 2014 Founded
Acquired

Investors

Top-tier and active investors

Top-tier investors who invested

Did not invest

Sequoia logo
A16Z logo
a16z crypto logo
Accel logo
Bessemer logo
Insight Partners logo
Benchmark logo
General Catalyst logo
Lightspeed logo
Index logo
Balderton logo
Atomico logo
Point Nine Capital logo
Creandum logo

Other investors

Funding & Exits

Aug 2026
Jul 2026

Previsico

grant

Investors: InsuResilience Investment Fund

Previsico
Apr 2026
Mar 2026
Feb 2026
Jan 2026

Rainbow Weather

Seed

$5.5M • Investors: Yuri Gurski

Tech.eu
Dec 2025

Aurassure

pre-series A

250M INR • Investors: Rainmatter Capital, Unicorn India Ventures, Maithan Alloys

The Economic Times
Oct 2025
Jul 2025

FieldFactors

equity financing

EUR 1.6M • Investors: Connect the Drops, Tailwind Climate, Amplifica Capital, Vanzal Limited, Water Innovation Fund

FieldFactors raises €1.65M
Mar 2025
Feb 2025

Floodbase

equity

$5M • Investors: Ecosystem Integrity Fund, Pulse Fund

Floodbase

7Analytics

strategic investment

Investors: IAG Firemark Ventures

7Analytics
Jan 2025

StormHarvester

Series A

GBP 8.4M • Investors: Emerald Technology Ventures, YFM Equity Partners

StormHarvester
Aug 2024
May 2024

WeatherXM

Series A

$7.7M • Investors: Lightspeed Faction, Protocol Labs, Borderless Capital, Arca, Alumni Ventures, Placeholder VC, Red Beard Ventures, Metaplanet, GS Futures, Consensys Mesh, Westerly Ventures, dlab, Eleftherios Diakomichalis, Juan Benet

PR Newswire

7Analytics

capital increase

EUR 4M • Investors: Scale Capital, strategic investors

7Analytics
Feb 2024
Jan 2024

FieldFactors

prize / grant

CHF • Investors: HCL Group, UpLink / World Economic Forum

HCLTech
Dec 2023
Nov 2023

RainGrid

co-investment / award

CAD 250K • Investors: HCL Group

RainGrid

iFLUX

equity

EUR 2M • Investors: PureTerra Ventures, V2HFin, PMV, University of Antwerp, existing investors

PMV

Rainbow Weather

Seed

EUR 1.8M • Investors: Kolos Ventures, Verras Capital, Melnichek Investments

Vestbee
Sep 2023
Jul 2023
May 2023

Waterplan

Series A

$11M • Investors: Base10 Partners, Giant Ventures, Transition Global, Y Combinator, MCJ Collective, Branson Family

GlobeNewswire
Jan 2023

Floodbase

Series A

$12M • Investors: Lowercarbon Capital, Collaborative Fund, Floating Point, Vidavo Ventures

Business Wire
Nov 2022

OptiRTC

Acquisition

Acquirer: Aliaxis • Status: Completed

Aliaxis
Sep 2022

7Analytics

Seed

$2.5M • Investors: Momentum, Construct Venture, OBOS Oppstart

Construct Venture
Aug 2022
Jun 2022

WeatherXM

Seed

$5M • Investors: Placeholder VC, Metaplanet, Consensys Mesh, Protocol Labs, Borderless Capital, SOSV, DLTx

The Block

iFLUX

EIC Accelerator grant

EUR 2.4M • Investors: European Innovation Council

CORDIS
Apr 2022

Waterplan

Seed

$7M • Investors: Transition Global, Giant Ventures, Branson Family, Leonardo DiCaprio, Manu Ginobili

Bloomberg Línea
Feb 2022

FloodMapp

Seed

$6M • Investors: Union Square Ventures, Mundi Ventures, Climate X, Jelix Ventures

FloodMapp blog
Sep 2021
Jul 2021
Jan 2021
Jul 2020
Nov 2019
Aug 2019
May 2019

iFLUX

equity

EUR 1.4M • Investors: Qbic II, VMH, University of Antwerp, existing investors

iFLUX
Jan 2019

FloodMapp

Seed

AUD 1.3M • Investors: Shark Tank’s Steve Baxter’s Transition Level Investments (now TEN13), Allectus Capital, Jelix Ventures

Business News Australia
Dec 2014

OptiRTC

formation backing

Investors: MissionPoint Partners, Geosyntec

PR Newswire

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Market analysis

From Floods to Droughts: The New Water Resilience Stack

An analysis of startups building for a more volatile water cycle, covering water forecasting, flood intelligence, groundwater monitoring and systems that capture excess rain for...

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