Energy Startups

Liquidstar builds a global network of modular micro data centers powered by solar energy to provide compute, connectivity, water, and internet services to remote and frontier regions. The company targets areas lacking reliable infrastructure and emergency scenarios by offering self-powered, sustainable utility infrastructure.

2 investors

LiSTie develops high-purity lithium recovery technology for electric vehicles, renewable energy storage, and fusion energy applications. The company aims to address future lithium supply shortages through sustainable recovery methods and circular resource management.

2 investors

Look After My Bills is a personal finance service that automatically switches users to better energy deals each year. It targets UK consumers looking to lower their household bills.

2 investors

Loris is a conversation intelligence platform that analyzes customer support interactions with AI; acquired by Contentsquare in 2025.

2 investors

LuminUltra provides microbial monitoring and testing solutions, including ATP field testing (Bugcount), qPCR diagnostics (Genecount), lab services, and a digital platform (Relay), to help industries detect and manage microbial risks. The company serves sectors such as food and beverage and water systems through products, research, and lab services.

2 investors

Luminus develops LED technology and light emitting products for diverse applications including architectural lighting, horticulture, automotive displays, and industrial systems. The company focuses on delivering superior color quality, thermal performance, and specialized light characteristics to replace conventional lighting technologies.

2 investors

Lumo provides a smart energy management system that optimizes how UK homeowners generate, store, and use energy from solar panels and home batteries. The platform helps households reach "zero bill" status by intelligently managing when to use stored energy, export excess power to the grid, or import small amounts, while maintaining home comfort.

2 investors

Lumvin is a Swiss company offering LED lighting retrofitting and technical product engineering, focused on re-use and sustainable renovation of existing lighting systems. It also develops new technical components, working with regional partners and apprentices from libs.

2 investors

M2X Energy converts waste methane from landfills and biogas facilities into renewable natural gas and low-carbon methanol. The company works with site partners on fuel supply and operates from an office in Rockledge, Florida.

2 investors

Malta Inc. develops a steam-based ultra-high temperature heat pump that delivers 300–550°C process heat for industrial decarbonization and serves as the core technology for its utility-scale long-duration energy storage system. It targets heavy industry and energy infrastructure, including chemicals, iron and steel, refining, and power generation.

2 investors

Manchester Energy develops and operates a diversified energy logistics platform focused on midstream infrastructure and energy solutions. The company serves customers and stakeholders navigating the energy transition by providing logistics capabilities across various end-use demand segments.

2 investors

ManoCap Energy designs, finances, builds, and operates clean energy infrastructure for businesses in Africa, including hybrid solar-plus-battery power systems and electric fleet solutions funded through power purchase agreements with no upfront cost to the customer. It targets African businesses seeking to lower energy and transport costs and reduce carbon emissions.

2 investors

MARCLEY provides solar power solutions for the housing sector based on Germany's "gemeinschaftliche Gebäudeversorgung" (GGV) model, letting residents sign a separate low-cost solar power contract alongside their existing electricity contract. It serves owners' associations, property managers, cooperatives, private owners, and municipal and church housing companies in Germany.</parameter> <parameter name="hq_country">DE

2 investors

MarsCharge builds electric vehicle chargers designed to support grid resiliency and enable the expansion of decentralized charging infrastructure. The company serves the electric vehicle industry by developing technology for a distributed grid capable of powering widespread EV adoption.

2 investors

Marvel Fusion develops a laser-based inertial fusion energy concept, combining a proprietary fast ignitor approach with innovations in lasers, targets, and power plant technology to enable commercial fusion power generation. The company works with strategic partner Siemens Energy and industrial suppliers across Europe and the United States.

2 investors

MassCEC is a venture capital and investment fund that commits $50 million through 2030 to support climatetech companies, with a focus on hard technologies that reduce greenhouse gas emissions, advance clean energy, and build community climate resilience. The fund invests in Massachusetts-based companies across the climate solutions sector through various instruments including SAFE notes, convertible notes, and equity.

2 investors

MaxxWatt is an independent technical partner for battery energy storage system (BESS) projects, supporting procurement, construction, and commissioning phases. It works with EPCs and developers to stabilize projects, manage supply chain and manufacturer risks, and secure technical acceptance and operational readiness.

2 investors

MClimate builds LoRaWAN-based IoT devices and a buildings management platform (MClimate Enterprise) for monitoring, controlling and automating heating, cooling, energy use, air quality and water systems in buildings. Its products serve property owners and facility managers aiming to cut energy consumption, reduce CO2 footprint and meet ESG goals.

2 investors

SOLshare is a climate-tech company in Bangladesh that builds peer-to-peer solar electricity trading networks through its SOLbazaar platform, connecting rural households with and without solar home systems. It focuses on providing reliable energy access and income opportunities for underserved rural communities.

2 investors

measurable.energy analyzes appliance-level power usage from existing smart sockets to measure real desk, room and zone utilization in commercial buildings, giving facilities and workplace teams occupancy insight without installing additional sensors. The data supports space rationalization, facilities scheduling, energy demand strategy and hybrid working decisions.

2 investors

Mecsia is a UK-wide operator of building maintenance and technical services companies, providing mechanical and electrical maintenance, fire and security systems, drainage solutions, and building energy management to commercial, healthcare, education, and industrial clients. The group coordinates multiple regional service providers to deliver 24/7 facilities management and compliance services with emphasis on sustainability and ESG goals.

2 investors

Mercari operates a financial derivatives market infrastructure serving OTC market participants with trading products across commodities, energy, environmental certificates, interest rates, and foreign exchange, primarily in Australian markets.

2 investors

Metal Light develops zinc-air batteries that store grid electricity as shelf-stable zinc metal for long-duration energy storage, positioning the technology as a safer, lower-cost alternative to lithium-ion. It targets data centers, grid operators, and retail electricity providers in the U.S. seeking reliability and peak-demand management.

2 investors

Metastable extracts critical metals like cobalt, lithium, copper and aluminium from recycled materials using proprietary carbothermal reduction technology, producing them in standard commodity forms for reuse.

2 investors