Energy Startups

1 investor

Ocean Yield operates in offshore oil and gas asset leasing, providing modern production vessels and floating storage and offloading units to energy companies.

1 investor

OceanSight develops marine sensors and interconnect solutions that provide ocean data to customers in offshore energy, subsea infrastructure, maritime security, environmental research, and fisheries operations. The company operates manufacturing and research facilities across North America and Europe.

1 investor

Oceanvolt develops electric propulsion systems for sailboats and marine vessels, replacing traditional diesel engines with sustainable electric alternatives. The company serves boatbuilders and the global sailing industry with propulsion technology focused on environmental performance and quieter operation.

1 investor

Odura is a Dutch energy consultancy that provides energy advice, solar PV expertise, and Scope 12 inspections, along with software and product development for flexible energy systems. It serves clients seeking guidance on energy systems and safety/quality compliance.

1 investor

1 investor

OE Systems develops WaveMove, a wave energy converter that generates electricity from ocean waves using a surface collector and hydraulic cylinders. The system operates standalone or integrated with wind turbines to provide stable renewable energy with capacity factors above 50% in many locations.

1 investor

oekostrom AG is an Austrian energy supplier providing clean, renewable electricity and operating its own power plants. It serves both residential and commercial customers, including tailored offers for businesses with annual consumption above 100,000 kWh.

1 investor

OffGridBox provides integrated systems combining renewable energy generation and water purification for households and institutions such as health clinics and schools, including in humanitarian settings like refugee camps. Operating since 2016 with an initial pilot in Rwanda, it aims to give communities affordable access to clean water and renewable energy in the face of climate change.

1 investor

Ohme provides integrated EV charging infrastructure and management software for shared residential parking in property developments. The platform combines hardware (ePod S chargers), a building manager dashboard, and payment processing to help developers and property managers deploy and operate charging across multiple sites.

1 investor

Okapi provides solar panel leasing for homeowners in Malaysia, offering zero-downpayment plans and flexible financing to fund residential solar installations. It works with installer partners to make home solar energy affordable without upfront costs.

1 investor

Omniflow manufactures smart outdoor IoT devices powered by integrated wind and solar energy, including lamposts and urban furniture designed for cities and public spaces. The company's systems reduce energy consumption by over 60% compared to standard LED lighting while enabling multiple connected applications.

1 investor

ON.energy builds grid-safe, resilient energy infrastructure systems that integrate with existing power grids and support hospitals, data centers, and cities. The company focuses on making energy reliable, clean, abundant and affordable through AI-driven infrastructure solutions.

1 investor

One Planet Studio builds and invests in ventures focused on accelerating decarbonization and addressing environmental challenges. The company operates as a studio supporting entrepreneurs and impact-driven startups in the clean technology and sustainable construction sectors.

1 investor

OnePlanetCapital is a venture capital firm that invests in early-stage climate technology companies with global reach and impact. The firm operates multiple investment vehicles including a core fund targeting 6-8 companies annually, an SEIS fund for UK climate tech startups, a syndicate structure for investors and family offices, and an institutional fund for later-stage, high-growth portfolio companies.

1 investor

ONiON Mobility manufactures electric three-wheeled and two-wheeled vehicles and develops battery-swapping infrastructure. The company operates a mobile ecosystem for ride-hailing and logistics services across Cambodia and Southeast Asia.

1 investor

1 investor

Oorjan provides solar energy systems for residential and commercial customers.

1 investor

OpConnect manufactures hardware for electric vehicle charging, with products made in Portland, Oregon. The company serves fleet operators and property managers across the USA and is expanding internationally to Canada, Puerto Rico, and Europe.

1 investor

Open Energy develops electric vehicle platforms and battery swap systems for B2B fleet operators in logistics and ridesharing, combining automotive engineering expertise with AI-powered energy management solutions.

1 investor

Open Motors builds an EV platform along with charging and battery-swap solutions to help entrepreneurs and fleet operators develop electric vehicles. The company focuses on mobility and energy infrastructure for human-driven and AI-powered fleets, aiming to reduce total cost of ownership.

1 investor

OptiFuel Systems develops fuel efficiency technology for transportation, partnering with manufacturers of rail, transit, and commercial vehicle systems.

1 investor

OptiGrid provides a battery optimisation and trading intelligence platform that uses AI-driven electricity price forecasting and optimisation to help asset owners operate grid-scale batteries and make investment decisions. It targets Australia's National Electricity Market, serving battery and energy asset owners in the renewable energy sector.

1 investor

Optimeering builds real-time forecasting and automation software for same-day European power market operations, including imbalance price forecasts and aFRR/mFRR capacity market forecasts. It serves energy market players and has developed pricing and clearing algorithms for the Nordic reserve capacity markets in collaboration with the Nordic TSOs.

1 investor