Open Source Alternatives to CarbonClick
60 open source Climate Tech options similar to CarbonClick, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Re Sustainability47SustainabilityNew York, United States$1.5MA platform focused on enabling businesses to achieve and report on sustainability goals.
Open source
Aemetis15Climate TechCupertino, United StatesAemetis is a renewable fuels and biochemicals company focused on low-carbon solutions like RNG and SAF.
Open source · Self-hostable
Carbon-Ledger stellar8Climate TechVerifiable carbon credits on the Stellar blockchain with a transparent audit trail.
Open source
Greencognition6Climate TechGreencognition explores green technology solutions, integrating AI for sustainable innovations.
Open source
Crusoe Energy63Energy & Climate TechDenver, United States$610.0MOpen source
Anaergia63Energy & Climate TechBurlington, CanadaAnaergia is a global leader in anaerobic digestion and renewable natural gas solutions.
Open source
EOS Data Analytics60AgTechKyiv, UkraineEOS Data Analytics provides AI-powered satellite imagery analytics for Earth observation.
Open source
Nordic Salt Cycle55Climate TechHelsinki, Finland$41.8MDeveloping a novel, sustainable process for extracting valuable minerals from industrial wastewater.
Open source
Algaeing55TextileTel Aviv, Israel$12.0MDevelops eco-positive, scalable solutions for textile fiber and fabric dyeing.
Open source
SolCold50CleantechTel Aviv, IsraelDevelops a patented nano-material for passive solar cooling without electricity.
Open source
Voltfang41EV ChargingBerlin, Germany$15.0MAI-powered platform for optimizing electric vehicle charging infrastructure and operations.
Open source
EnergyX41Energy & Climate TechAustin, United StatesEnergyX is developing advanced lithium extraction technology for sustainable battery production.
Open source
SmartGreen37IndustrialTel Aviv, Israel$3.0MSmartGreen provides advanced solutions to optimize energy and operational performance for commercial and industrial buildings using AI and big data.
Open source
Intellivolt35EV ChargingLondon, United KingdomIntellivolt provides intelligent EV charging solutions for businesses and fleets.
Open source
Suena Energy35Energy & Climate TechTel Aviv, Israel$10.1MSuena Energy develops AI-powered solutions for optimizing energy consumption in buildings.
Open source
WeatherXM33Climate TechAthens, GreeceDecentralized weather network powered by a global community of weather stations.
Open source
Marine Hound21Climate TechValletta, MaltaMalta-based company developing an emissions monitoring system for the maritime industry.
Open source
everwave18Climate TechHamburg, Germanyeverwave is a German startup developing a platform for cleaning up plastic waste from rivers.
Open source
- D.A.A. Tech11Environmental ConsultingWindsor, United States
A global consulting, engineering, and construction management firm providing environmentally focused and digitally powered solutions.
Open source
Bio Green Cleaning8Green CleaningSan Diego, United StatesEco-friendly commercial cleaning services using non-toxic, biodegradable products.
Open source
Octopus Energy76EnergyLondon, United Kingdom$800.0MGlobal clean energy tech company using proprietary software to provide affordable, renewable energy solutions.
Open source
Stripe, Inc.72BillingSouth San Francisco, United States$11.4BStripe, Inc. is an Irish-American multinational financial services and software as a service company dual-headquartered in South San Francisco, California, Unit
Open source
Warmly63Agentic AISan Francisco, United States$19.7MAutonomous Revenue Agents platform for B2B Go-To-Market (GTM) products.
Open source
ecobee63Smart HomeToronto, Canada$96.0MSmart thermostats and home devices for enhanced comfort, security, and energy savings.
Open source
Workiva62Enterprise SoftwareAmes, United StatesAI-powered platform unifying data and processes for finance, accounting, sustainability, risk, and audit teams.
Open source
Tomorrow.io62WeatherBoston, United States$259.0MThe world's leading Weather and Climate Security Platform, providing actionable weather intelligence.
Open source
Intruder60CybersecurityLondon, United Kingdom$63.0MAttack surface management company.
Open source
Smartex.ai58Textile ManufacturingPorto, Portugal$24.7MAI-driven software and hardware solutions for real-time textile defect detection and quality control.
Open source
Harri58HR TechNew York, United States$80.0MHarri provides a comprehensive Human Capital Management (HCM) platform for frontline employees in the hospitality and service sectors.
Open source
Iyzico58FintechIstanbul, Turkey$30.6MOnline payment gateway and financial services provider for businesses in Turkey and emerging markets.
Open source
Bitwarden57CybersecuritySanta Barbara, United States$130.0MOpen-source password manager for individuals, teams, and businesses.
Open source · Self-hostable
Adam57AI Copilot$508.4MAdam is an AI-powered CAD co-pilot that generates 3D models from text descriptions in seconds.
Open source
Belkin Vision56HealthcareGeneva, Switzerland$38.5MAlcon is a global leader in eye care, providing a broad portfolio of products to enhance sight and improve lives.
Open source
Scala Biodesign56Life SciencesTel Aviv, Israel$21.5MDesigns proteins with superior properties using computational analysis, evolutionary insights, and AI.
Open source
BitPay56FintechAtlanta, United StatesBitPay is a cryptocurrency payment service provider facilitating transactions for businesses and individuals.
Open source
Catena Labs56Agentic AISan Francisco, United States$36.0MPioneering the first AI-native financial institution for autonomous AI agents.
Open source
Cardano55BlockchainA secure, scalable, and sustainable proof-of-stake blockchain platform for decentralized applications and smart contracts.
Open source · Self-hostable
Mappedin55Real Estate TechWaterloo, Canada$56.6MDigital mapping technology for indoor spaces.
Open source
Aura Aero54AerospaceToulouse, France$340.0MA French aerospace startup developing sustainable aircraft.
Open source
Allbirds54Apparel & FashionSan Francisco, USA$150.0MSustainable footwear and apparel company.
Open source
EarthDaily Analytics54Earth ObservationVancouver, CanadaDelivers high-quality Earth observation data and advanced analytics for agriculture, environment, and urban planning.
Open source
Halo Digital53AI Enablers$11.0MDigital infrastructure for manufacturing to boost efficiency and reduce costs.
Open source
Ghost53Publishing PlatformSingapore, Singapore$7.4MAn open-source platform for professional publishers to create, share, and grow a business around their content.
Open source · Self-hostable
H2Pro53WaterTel Aviv, IsraelRevolutionary electrolyzer technology for affordable green hydrogen production at scale.
Open source
Banked53FintechLondon, United Kingdom$2.0MA payment infrastructure company enabling account-to-account payments.
Open source
Netskope52CybersecuritySanta Clara, United States$1.5BNetskope provides a leading security service edge (SSE) platform that unifies security and networking to protect data and users everywhere.
Open source
Vivint Solar52Solar EnergyLehi, United StatesResidential solar energy provider offering design, installation, and financing of solar systems.
Open source
- APAppknox52CybersecuritySingapore, Singapore$63.0M
Mobile app security solutions provider.
Open source
Collos48Climate TechBoston, United States$1.1MColossus is a climate-technology company focused on accelerating the clean-energy movement through solar software and a marketplace.
Open source
Spotlight.ai47EnterpriseTel Aviv, Israel$1.0MAI-driven platform for sales discovery, business case building, and value positioning.
Open source
Crusoe45AI InfrastructureDenver, United StatesAI infrastructure and GPU cloud platform leveraging sustainable energy for efficient computing.
Open source
- VNVNYX44FashionTechAmsterdam, Netherlands$1.1M
Automating fashion resale for scalability and profitability.
Open source
Caudal Energy42Renewable EnergyOxford, United Kingdom$5.3MDeveloping predictable renewable power systems from tidal flow.
Open source
Credbull41FintechTel Aviv, Israel$1.5MAI-powered platform for managing and optimizing B2B payment workflows.
Open source
Qanta.ai38Fintech$1.0MAI-powered agent for mortgage lenders automating customer engagement and profile creation.
Open source
Nuitée34Travel TechCasablanca, MoroccoA B2B travel infrastructure company connecting hotels, agencies, and online travel distributors.
Open source
GrackerAI33Agentic SEOTel Aviv, IsraelAI-powered programmatic SEO platform for B2B SaaS to scale content and dominate search categories.
Open source
Booth Guru31EventsTel Aviv, IsraelAI-driven behavioral intelligence for scalable live events, focusing on signal intelligence beyond traditional registration and attendance.
Open source
Kiinns30Food SafetyTel Aviv, IsraelRevolutionizing food production with biodegradable liners and robotic cleaning to enhance food safety.
Open source
Brexia29FintechAI-powered platform for automating and optimizing B2B payments and financial operations.
Open source