Y Combinator companies

The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,197 companies.

CompanyClusterProgramStatusLast signal
ALT TEX

Biodegradable and carbon neutral textiles, engineered from food waste.

Climate and energybiodegradable materials from food wasteY CombinatorS22Activechecked 2026-08-23
Birch Biosciences

We recycle plastic using engineered enzymes

Climate and energyenzymatic plastic recyclingY CombinatorS22Activechecked 2026-08-23
MaverickX

Engineering the future of chemistry for natural resource extraction

Climate and energychemical extraction optimizationY CombinatorS22Activechecked 2026-08-23
PacesAI

Agentic AI for Power Projects and AI Infrastructure

Climate and energyAI agents for renewable energy infrastructureY CombinatorS22Activechecked 2026-08-23
Voltic

Electric cargo ships

Climate and energyelectric cargo shipsY CombinatorS22Activechecked 2026-08-24
Wand Solar

We enable landlords to generate income from solar panels.

Climate and energySolar revenue for rental propertiesY CombinatorS22Activechecked 2026-08-23
AirMyne

Building systems to remove carbon dioxide from air at industrial scale

Climate and energyindustrial carbon dioxide captureY CombinatorW22Activechecked 2026-08-24
Alga Biosciences

We stop cows from burping methane.

Climate and energymethane reduction for livestockY CombinatorW22Activechecked 2026-08-23
Axross Pte LtdAI

AI-driven HVAC control system for improved energy performance

Climate and energyAI-optimized HVAC control for manufacturersY CombinatorW22Activechecked 2026-08-24
Carbon Crusher

We make carbon negative roads

Climate and energycarbon removal construction materialsY CombinatorW22Inactivechecked 2026-08-17
Nira Energy

Software to find the best sites for renewables on the electrical grid

Climate and energyRenewable grid interconnection planning softwareY CombinatorW22Activechecked 2026-08-23
Perl Street

Financing the next-generation of infrastructure projects

Climate and energyInfrastructure financing platformY CombinatorW22Activechecked 2026-08-23
Phase Biolabs

We make carbon negative chemicals from CO2 using fermentation

Climate and energycarbon negative chemicals from CO2Y CombinatorW22Activechecked 2026-08-23
Posh

Rapidly deployable energy solutions for modern commercial and…

Climate and energyDeployable energy storage for data centersY CombinatorW22Activechecked 2026-08-23
Seabound

Carbon capture equipment for ships

Climate and energymarine carbon capture technologyY CombinatorW22Activechecked 2026-08-23
SmartHelioAI

Software to prevent downtime in a solar plant

Climate and energysolar plant predictive maintenanceY CombinatorW22Activechecked 2026-08-24
Unravel Carbon

Enterprise software for companies to track & reduce their carbon…

Climate and energyenterprise carbon tracking and supply chainY CombinatorW22Activechecked 2026-08-23