BURNT ISLAND VENTURES — Full Portfolio

LAIIER develops sensor-based leak detection solutions for commercial buildings and industrial equipment, helping property operators, insurers, and facilities managers prevent water damage and reduce downtime.

Climate TechConstruction TechEnterprise SoftwareIoTPropTechLondon

Matt Johnson(Executive Officer, Director)inBibiana Nelson(Executive Officer)Colin Nunn(Executive Officer)

BoardFaisal Al-Husssein(Director)Zena Bruges(Director)Alyssa Bryan(Director)

Co-investorsMundi VenturesVirta VenturesClosed Loop Partners

Electrochemical water purifier using patent-pending technology to remove contaminants including PFOA.

Mansfield, US

Julie Bliss Mullen(Executive Officer, Director)Leanne Hersey(Founder)inPamela Lynch(Executive Officer)Orren Schneider(Executive Officer)

BoardJiten Manglani(Director)

Board seatTom FergusonWayne Byrne· per SEC Form D · $15M raise · filed Jul 2023

Co-investorsDCVC (Data Collective)Echo River CapitalHG VenturesMassVenturesThe Alchemy Fund

Aqua Membranes makes precision-printed elements for industrial reverse osmosis (RO) systems, designed to increase production, lower energy costs, reduce cleaning cycles, and improve recovery without retrofits.

Advanced ManufacturingCleantechHardwareNew MaterialsAlbuquerque, US

Rodney Herrington(Founder)Craig Beckman(CEO)Christopher Kurth(Chief Technology Officer)Rick Sanders(Director)Michael Reardon(Director)Stuart Schoenmann(Director)

Board seatSteve Kloos· per SEC Form D

Co-investorsClean Energy VentureClean Energy VenturesHelios Climate VenturesNovaCapitalCycle CapitalMicron Ventures

AquiSense develops UV-C LED water disinfection systems that treat water without chemicals, serving homes, factories, restaurants, remote communities, and space applications.

CleantechDeep TechHardwareKentucky, US

Oliver Lawal(President & CEO)inStuart Bauman(CFO/Treasurer)inJennifer Pagán(CTO)in

Board seatSteve Kloos· per SEC Form D

Co-investorsKeyhorse Capital

Longmont, US

Rose Nash(Executive Officer, Director)

PartnerTom Ferguson· quoted

Board seatSteve Kloos· per SEC Form D

Co-investorsBaruch Future VenturesDeepWork Capital

Daupler develops a response management platform for utilities, public works, and service organizations to manage service requests and emergency situations more efficiently.

Enterprise SoftwareGovTechRoboticsSaaSKansas City, US

John Bertrand(Founder and CEO)Ryan Rosenbaum(CTO)

BoardJiten Manglani(Director)

Board seatTom Ferguson· per SEC Form D

Co-investorsKCRise FundKnoll VenturesRunway Venture PartnersSandalphon CapitalTechstars

2S Water manufactures AquaValid, a real-time water analyzer that continuously measures dissolved metals in process water using optical-emission spectroscopy technology.

CleantechClimate TechHardwareIoT

Co-investorsForesightStartup TNT

Aclarity develops proprietary technology to break down PFAS (per- and polyfluoroalkyl substances) compounds using electricity, offering an alternative to traditional disposal methods that involve landfilling or incineration.

CleantechClimate TechHardware

Michael Shaw(President and Chief Executive Officer)

Co-investorsEcho River CapitalHG VenturesMaroon Venture Partners FundMassVentures

AlgaFilm develops an algae-based biofilm technology for wastewater treatment that recovers nutrients as a sustainable alternative to conventional treatment methods.

BiotechCleantechClimate TechVancouver, CA

Pierre Côté(President)Ahren Britton(CEO)

A publication and information resource serving oil and gas industry associations across the United States.

Data & InfrastructureEnergyMedia & Entertainment

Aquafortus develops energy-efficient treatment technology for high-salinity industrial wastewater, enabling resource recovery at significantly lower costs than conventional desalination methods.

Advanced ManufacturingCleantechClimate TechEnergyNew MaterialsHouston, US

Hoshang(CEO)Dave Allworth(Chief Financial Officer)Richard(Chief Technology Officer)Matt(Chief Operating Officer)

BoardIris Jancik

Co-investorsDCVC (Data Collective)

Aquatic Labs develops solid-state, semiconductor-based water sensors that measure parameters such as pH, total alkalinity, conductivity, and temperature without consumable reagents, paired with a data pipeline for real-time insights.

CleantechHardwareIoT

Allan Adams(Founder)in

Co-investorsFuture Planet CapitalPropeller VC

Beagle Services provides water security and plumbing solutions for residential properties, offering automatic shutoff valves, smart water sensors, and leak detection technology installed and maintained by certified plumbers.

IoTPropTechSanta Monica, US

Paul Vacquier(Executive Officer)

Co-investorsResolute VenturesTop Corner CapitalWonder Ventures

Cala manufactures a heat pump water heater designed for residential use that heats water efficiently for households of up to five people.

CleantechEnergyHardwareIoTSomerville, US

Michael Rigney(Executive Officer, Director)

BoardMichael Ting(Director)David Wilson(Director)Thomas Ferguson(Director)in

Co-investorsClean Energy VentureClimate CapitalLeap Forward Ventures

CivilGrid consolidates thousands of datasets on underground utilities, land rights, geotech conditions, and other site data into a real-time map for civil engineers, utility operators, and construction teams.

Construction TechData & InfrastructureGovTechSaaS

Josh(Co-founder)Brandon(Co-founder)

Co-investors2.12 AngelsA*Afore CapitalAnorak VenturesEnergy Impact PartnersSpark Capital

CNSRV manufactures the DC:02 Gen2, a closed-loop water recirculation system for commercial kitchens that defrosts food while using 98% less water than traditional running-faucet methods.

CleantechFoodTechHardware

CREW is a Yale spinout that adds calcium carbonate (ground limestone) to wastewater treatment plants to intensify biological treatment, cut chemical costs, and permanently remove carbon dioxide.

CleantechClimate TechDeep TechNew Haven, US

Joachim Katchinoff(Co-founder & CEO)inNoah Planavsky(Co-Founder & Scientific Advisor)in

Co-investorsAP VenturesConnecticut InnovationsCounteract OneEcho River CapitalEmerald Technology Ventures AgSony Ventures Corporation+2 more

Cacique is a food manufacturer that produces Mexican-style cheese products, including shredded and grated varieties.

FoodTechMedia & Entertainment

Co-investorsAvestria Ventures

Floodbase provides flood mapping technology and parametric flood insurance products that pay out based on the magnitude of flooding over a large area, enabling policies that settle within days of an event.

AI & Machine LearningClimate TechInsurTechBrooklyn, US

Bessie Schwarz(Executive Officer, Director, Promoter)Elizabeth Tellman(Executive Officer, Director, Promoter)

BoardMarty Schneider(Director)Sasha Brown(Director)John Loser(Director)in

Co-investorsEcosystem Integrity FundFloating PointGroundForce CapitalLOWERCARBONLowercarbon CapitalMercy Corps Ventures+4 more

HOPE Hydration provides water refill stations that dispense free water at events, using NFC-enabled bottles and readers to power features like gamified refill leaderboards and sponsorship activations while reducing single-use plastic.

Climate TechHardwareIoT

Jorge Richardson(Founder)Cristina Gnecco(Founder)inDave Tigue(Founder)in

Independent Agent is a magazine and digital publication that provides insurance industry trends, analysis, and business strategies for property-casualty independent insurance agents and brokers.

InsurTechMedia & Entertainment

Irrigreen manufactures smart in-ground sprinkler systems for residential lawns that use mapping technology to reduce water waste by up to 50% compared to traditional irrigation.

AgTechHardwareIoT

Co-investorsEcho River CapitalMFV PartnersTamiami AngelUlu VenturesAnorak VenturesSum Ventures

NLine Energy makes the SteamLine Turbine, which generates electricity from excess steam pressure that industrial facilities otherwise waste, reducing operating costs and emissions.

CleantechClimate TechEnergy

Power Almanac provides a contact database of verified decision-makers across 22,000 local governments and 343,000 officials in the United States, with phone verification and role-based targeting for government sales and marketing campaigns.

Data & InfrastructureGovTechMarketing TechSales Tech

Power and Water manufactures custom-built power supply and control panels designed for their Soneco systems, featuring switch-mode technology for energy efficiency and remote monitoring capabilities.

Advanced ManufacturingAI & Machine LearningCleantechClimate TechEnergyHardwareSwansea, GB

Previsico provides a flood forecasting and hydrological monitoring service that predicts and monitors flood risks, including surface water, small streams, and drainage systems often not covered by standard flood alerts.

AI & Machine LearningClimate TechInsurTech

Prof. Yu(Co-founder)Dr Avi Baruch(Co-founder)in

Co-investors24 HaymarketConnecticut InnovationsBlueOrchard Finance S AForesight Group

SewerAI provides an AI platform for underground infrastructure inspection, turning CCTV and MACP footage into automatically coded defect data, risk scores, and capital rehabilitation plans.

AI & Machine LearningCleantechSaaS

Matt Rosenthal(Co-CEO & Co-Founder)Billy Gilmartin(Co-CEO & Co-Founder)inSepehr Sobhani(VP of Engineering)Abhinoor Dhull(VP of Operations)Dave Barden(VP of Sales)Matthew Szymanski(Head of Finance)

Co-investorsEmerald Technology Ventures AgInnovius CapitalBuilders VCCerity Partners VenturesJMI EquitySuffolk Technologies

Shower Stream develops IoT-enabled showerheads that reduce water and energy consumption for hospitality properties while providing operational data analytics.

CleantechEnterprise SoftwareHardwareIoTPropTech

Co-investorsEcho River CapitalNew Stack VenturesNewlin VenturesSWAN Impact NetworkTrue Wealth VenturesNorth Texas Angel Network

Sønr provides external insight and intelligence to help technology and innovation teams identify uncertainty before making decisions or commitments.

Data & InfrastructureEnterprise SoftwareSaaS

Spout builds a countertop machine that generates drinking water from air using electricity and filters, with no plumbing, bottles, or delivery.

CleantechConsumerHardware

Subeca provides smart water metering technology that delivers real-time and hourly meter readings over flexible network options including Amazon Sidewalk, LoRaWAN, and Bluetooth.

CleantechHardwareIoTDallas, US

Anne Mushow(Chief Executive Officer)Kelly Galway(Chief Product and Technology Officer)Hank McCarrick(Executive Officer, Director)Don E. Whitson(Executive Officer)

SwiftComply provides compliance software that automates administrative workflows and data management for water utilities to help them enforce environmental regulations.

CleantechGovTechSaaSPleasanton, US

Mick O'Dwyer(Founder & CEO)

Co-investorsM33 GrowthPrefix Capital

TeamSolve builds Knowledge Twin, an AI-powered system that captures and organizes operational data and field work for utility and industrial teams.

AI & Machine LearningEnterprise SoftwareIoTSaaS

waterloop is a nonprofit news outlet that produces journalism focused on water sustainability.

Climate TechImpact & Social GoodMedia & Entertainment

Travis Loop(Founder)in

Waterly provides software for water, wastewater, stormwater, and greywater systems operators to manage their infrastructure.

AgTechCleantechClimate TechEnterprise SoftwareGovTechIoTSaaS

Chris Sosnowski(Founder/Chief Cook and Bottle Washer)Jason Vasquez(Founder/Chief Plumber)Michael Murdyin

Co-investorsEmerald Technology Ventures Ag

Water & Waste Water Asia is a trade media publication covering the water and wastewater industry across Asia, with news, market reports, case studies, interviews, and a magazine.

CleantechMedia & Entertainment

Boston, US

Co-investorsTechstars

Ziptility provides operations and asset management software for small water and wastewater utilities, with mobile apps to capture, organize, and analyze field data for maintenance scheduling, GIS mapping, and long-term planning.

GovTechIoTSaaSBloomington, US

Jim Good(Founder)inJeffrey Buszkiewicz(Executive Officer)Douglas Dayhoff(Director)Tyler Henke(Executive Officer, Director)Steven Naimark(Director)

Co-investorsElevate VenturesIU Ventures

ZwitterCo develops zwitterionic anti-fouling membranes that resist organic fouling for filtration of industrial wastewater and process streams.

Advanced ManufacturingCleantechNew MaterialsCambridge, US

Alex Rappaport(Co-Founder & CEO)in

BoardStephen Remondi(Director)

Co-investorsBantam GroupDCVC (Data Collective)Genoa VenturesHG VenturesMunich Re Ventures