EarthX Announces 10 Semi-Finalists Competing for Prestigious 2025 EarthX Climate Tech Prize (ft Greentown Lab)

PR Newswire

Selected Startups to Pitch at EarthX’s 9^th Annual E-Capital Summit for $15,000 non-dilutive cash prize. Ocean Exchange Returns to Earthx2025 to Host Blue Economy Pitch Showcase.

DALLAS, April 14, 2025 /PRNewswire/ — EarthX has announced the ten semi-finalists for the 2025 EarthX Climate Tech Prize, selected from more than 200 global applicants. These early-stage startup companies span industry sectors including heavy industry/manufacturing, energy, agtech/food, and the circular economy — and will compete for a $15,000 non-dilutive cash prize and the opportunity to pitch before leading global investment, industry, and innovation leaders at the 9^th Annual EarthX E-Capital Summit taking place Tuesday, April 22 through Thursday, April 24^th in Dallas, Texas.

The 2025 EarthX Climate Tech Prize, powered by Climate Solutions Prize in Montreal, is awarded annually to early-stage ventures with less than $250,000 in revenue and under $500,000 in dilutive funding. Semi-finalists were selected by EarthX and innovation leaders from Austin Technology Incubator, Capital Factory, Greentown Labs, and Unreasonable Group. Last year’s winner was En Solucion, co-founded by Alex Athey, a Texas-based agtech company that produces chemical-free food sanitation. Winners from previous years include an agtech business in Kenya, a materials science business in New York, and an industrial innovator in Texas.

This year’s Semi-Finals will feature 3-minute lightning pitches on Wednesday, April 23 on the E-Capital Summit Investment Forum Stage, with audience members voting live to determine which 3–4 companies will advance to the Finals on Thursday, April 24 at 1:30 p.m. on The TV Stage at Earthx2025.

2025 EarthX Climate Tech Prize Semi-Finalists Include:

Aeon Blue (Sydney, Nova Scotia, Canada) – Produces sustainable eFuels by combining hydrogen generation with direct air capture of CO₂ in a single clean-tech process.
EnnoFlow Technologies (Austin, TX, USA) – Merges edge AI with energy infrastructure to create automated, flexible, and efficient virtual power networks.
HighGround Ranch Developers (Plano, TX, USA) – Funds and connects regenerative ranches with tech platforms to scale climate-friendly agriculture.
OptiCloud (Jackson, WY, USA) – Optimizes digital infrastructure with AI tools that reduce cloud waste, energy use, and operational costs.
Mithril Minerals (Austin, TX, USA) – Develops advanced robotics for low-cost extraction of critical minerals from ocean polymetallic nodules.
Petra Power (Solon, OH, USA) – Develops compact, fuel-flexible solid oxide fuel cells that deliver high-efficiency, zero-emission electricity for vehicles.
PowerBox Technology (Champaign, IL, USA) – Provides integrated solar and storage systems that ensure uninterrupted industrial power and lower energy expenses.
ResonanceX (Santiago de Chile, Chile) – Designs resonant electromagnetic circuits for carbon-free power generation.
Venki Energy (Silver Spring, MD, USA) – Creates removable rooftop solar racking to enable a subscription-based solar model and expand rooftop access.
Zero Electric (Austin, TX, USA) – Repurposes EV batteries into storage systems to support fast EV charging and enhance grid resiliency.