Energy Startups

Occidental Petroleum is an integrated energy company engaged in oil and gas production and, increasingly, carbon capture, utilization and storage (CCUS) technologies to reduce emissions across its operations and support decarbonization in other industries.

2 investors

Oxygen8 develops all-electric ventilation systems for residential and large-scale buildings designed to improve indoor air quality while reducing carbon footprints. The company offers decentralized, modular solutions that can be installed suite-by-suite or floor-by-floor to maximize building space.

2 investors

P2X Solutions develops synthetic methanol production facilities, converting renewable energy and captured carbon into sustainable fuel for industrial and energy applications in Finland.

2 investors

papernest is a free service that lets consumers centralize and manage their contracts — electricity, internet, mobile plans, and home insurance — in one place and reduce their bills, including handling contract transfers during a move. It targets individual consumers, with a stated focus on the French market.

2 investors

Paradigm designs and manufactures pollution control devices for diesel and gasoline engines that reduce emissions and particulate matter while lowering maintenance costs and fuel consumption. The company serves the transportation, construction, mining, agriculture, marine and industrial sectors using diesel and gas engines.

2 investors

ParaNetics develops electric motors based on a patented ParaNetic magnetic field technology that utilizes both sides of rotor and stator magnetic fields to achieve higher power output and efficiency. The company targets electric aircraft, underwater submersibles, and other emerging propulsion markets through a licensing and royalty business model.

2 investors

Payaca builds software for renewable energy and clean tech installers to manage and scale their operations, including workflow and quote generation for installation businesses. The platform is aimed at helping clean energy installers streamline their end-to-end operations.

2 investors

PCC Hydrogen produces green hydrogen by converting ethanol, other biofuels, and renewable natural gas into high-purity hydrogen using a patented Pyrocat crystalline catalyst and a production process that yields a capturable pure CO2 byproduct. The company operates a pilot plant producing up to 300 kg of hydrogen per day and targets the industrial energy and ethanol markets.

2 investors

Pearl Certification operates a national home performance registry that verifies and records energy-efficiency and other home improvements, giving homeowners a permanent record that stays with the property so upgrades can be accurately valued. It serves homeowners and public energy programs across the United States.

2 investors

Pegasus Solar designs and manufactures rooftop solar mounting systems and installation hardware for solar installers. The American company focuses on simplifying the installation process from packaging through inspection.

2 investors

Pembroke Olive Downs operates a metallurgical coal mine in Queensland's Bowen Basin, producing high-quality coking coal and PCI products for steelmakers globally. The operation is backed by Denham Capital and licensed to produce up to 20 million tonnes per annum.

2 investors

Penguin Solutions provides memory and AI infrastructure software and systems for enterprises and cloud providers building AI deployments. The company offers a full-stack platform combining infrastructure software, advanced memory technology, compute systems, and services to help customers deploy and scale AI workloads.

2 investors

Perovskia develops and manufactures high-efficiency perovskite solar cells under the "Swiss Made" label, leveraging research partnerships and advanced material science. The company serves the renewable energy sector with eco-friendly solar solutions designed to reduce carbon emissions and support sustainability.

2 investors

PHNXX designs modular renewable energy systems, applying modular design principles from its founders' backgrounds in oil, gas, and mining fuel systems. The company focuses on sustainable energy solutions to support the global energy transition.

2 investors

Photon Vault develops a thermal energy storage system that banks heat energy—harvested from solar thermal power, industrial waste heat, or other high-temperature sources—in a proprietary custom-engineered composite material, then converts a temperature gradient into a pressure gradient to drive a standard generator. The system targets grid-scale energy storage to help offset the intermittency of solar and wind power and support decarbonization of electricity supply.

2 investors

Phyco Bloom uses synthetic biology to engineer algae that capture carbon dioxide and convert it into oil for use as a sustainable fuel or plastic feedstock. The company targets applications such as aviation, shipping, and materials production.

2 investors

Piersica develops solid-state lithium battery technology, including a fiber-based 3D lithium-metal anode and a proprietary lithium-conductive solid polymer electrolyte separator, aiming for ultra-high energy density cells (targeting 600 Wh/kg). Its technology targets battery applications across consumer electronics, automotive, aerospace, medical devices, and energy storage.

2 investors

Builds clean power solutions using advanced DC nanogrids to capture, manage and distribute renewable energy.

2 investors

Pixion develops a patented dry electrode processing technology for lithium-ion battery production, aimed at lowering costs, reducing factory footprints, and improving cell performance. It serves cell producers, materials suppliers, and battery tool manufacturers across the Li-ion value chain.

2 investors

Plains All American operates energy infrastructure in North America, delivering midstream energy services to communities and customers while generating returns for investors.

2 investors

PLANT PV developed and manufactured photovoltaic cell materials, including a "silver-on-aluminum" metallization paste for commercial silicon solar cells. Founded in 2010, the company's technology was acquired by a Japanese materials company in 2019.

2 investors

PLT energia develops, builds, and operates renewable energy plants (wind, solar, agrivoltaic, and storage) as part of the Tortora family's PLT holding group. It is one of Italy's independent renewable energy operators, active across the European market (Italy and Spain) and the United States (Texas).

2 investors

Plug Power develops hydrogen fuel cell and related clean energy technologies. This page presents the company's culture and people-first values rather than product specifics.

2 investors

PositivEnergy is an owner-operator of EV charging infrastructure that develops, designs, deploys, owns, operates and maintains charging assets under a single Charging-as-a-Service agreement. It serves cities, fleets, sports and entertainment venues, airports and utilities in the United States.

2 investors