Energy Startups

Mantis Space is a space utility company focused on delivering more energy to satellites and other assets in low earth orbit. It aims to support the growth of the space economy.

1 investor

Mantle Reach Power develops and operates utility-scale renewable energy projects, including wind, solar, and battery storage facilities across North American power markets.

1 investor

The Margam Green Energy Plant is a biomass power station in the UK that generates renewable energy by burning waste wood. It operates as part of the clean energy infrastructure sector, with fuel supplied under a long-term contract.

1 investor

Marine Power Systems develops PelaFlex, a floating platform technology for deploying offshore wind turbines in deep waters beyond 60 metres, targeting the 80% of global offshore wind resources previously inaccessible to conventional fixed-bottom installations.

1 investor

Marom Energy is a renewable energy project developer that initiates, develops, and operates medium- and large-scale solar, energy storage, and data center projects on land and rooftops. Based in Israel with activities also in Croatia, it partners with landowners and local communities across the electricity generation value chain.

1 investor

Massive Mobility builds EV charging infrastructure and related software in India, including universal AC charging sockets, a smart charging network platform (1Charging.com), an e-rickshaw online marketplace (BharatMobility), and an EV leasing service (ZECAT) for fleet operators and retail users. It serves the electric two-, three-, and four-wheeler ecosystem, partnering with OEMs and government discoms to deploy charging stations.

1 investor

Mastergrid provides custom electrical engineering solutions and expertise for industrial power systems, serving industrial clients with technical design and implementation services.

1 investor

MatAlytics develops real-time AI software that provides physically-based information to power operators for operational decision-making. The company was founded in 2023 as a spin-out from the University of Nottingham, building on academic research into energy systems.

1 investor

Matcha builds a software platform and charge point operator service for EV charging in multifamily and shared residential properties. The company serves property owners and renters, offering dynamic pricing, reservations, and energy management without upfront costs to landlords.

1 investor

MATEL designs and manufactures high-efficiency electric motors and EV powertrains for industrial applications, automotive, and renewable energy sectors. The company specializes in energy-saving motor-control solutions and supports India's Mission Shunya for zero-emission vehicles.

1 investor

Metinvest is developing a steel production facility in Piombino, Italy with the capacity to produce approximately 2.7 million tonnes of low-carbon hot-rolled steel annually. The project is a brownfield investment at the former Lucchini site in Tuscany, designed to strengthen Metinvest's EU-based flat steel position.

1 investor

Matla A Bokone Solar operates a roughly 75MW solar power plant near Kimberley in South Africa's Northern Cape Province, producing renewable electricity that connects to Eskom's grid. Developed under Round 4 of the South African government's REIPPPP, the project supplies power equivalent to the needs of around 85,000 medium-sized homes.

1 investor

Matrix Service Company is a heavy industrial contractor that engineers, constructs, and maintains energy, power, and industrial infrastructure through operating companies organized into utility and power infrastructure, process and industrial facilities, and storage and terminal solutions segments. It serves energy, industrial, and power and utility clients across North America and beyond.

1 investor

Johnson Matthey is a materials and catalysis company with over 200 years of history in platinum group metals (PGMs). The company operates through core businesses in clean air catalysts for vehicle emission control, PGM services including refining and metal management, clean air solutions for stationary applications, and hydrogen technologies for fuel cells and electrolysers.

1 investor

Maumee Ventures is the venture capital investment arm of The Andersons, focusing on early-stage ag innovation across plant nutrients, crop protection, grain supply chain, freight logistics, precision science, food safety, and renewable energy. The firm provides capital alongside operational support and distribution capabilities rather than pursuing quick exits.

1 investor

Maverick Water Group builds and operates localized non-potable water systems for large-volume water users, offering infrastructure-as-a-service models and capital financing to reduce water costs and consumption. The company serves industrial and commercial clients seeking sustainable water solutions through performance-based contracts and asset ownership.

1 investor

Big Digital Energy develops digital infrastructure and power-ready sites for high-performance compute (HPC), offering colocation for high-performance computing and digital assets. Its focus includes site selection based on scalable power and fiber connectivity to support long-term compute demand, including workloads related to national security.

1 investor

Max Flow Chemicals supplies oilfield production chemicals and salt water disposal (SWD) treatment products, including scale and corrosion inhibitors, H2S and oxygen scavengers, biocides, and paraffin solvents. It provides chemical solutions for oil and gas production and water disposal operations.

1 investor

Maxem provides energy management software and charging infrastructure solutions to support organizations in their electrification transition. The company combines expertise in energy, software, and EV charging infrastructure.

1 investor

Sunbelt Solomon supplies, designs, maintains, rents, repairs, recycles, and resells power-distribution equipment such as transformers, voltage regulators, reclosers, and switchgear. It serves utilities and industrial power customers through a national service center network offering new and remanufactured equipment.

1 investor

Maxwell+spark designs and manufactures lithium-ion battery systems to electrify industrial mobility and equipment such as forklifts and refrigeration units, replacing diesel, gas, and lead-acid power. It serves industrial and supply-chain logistics operators globally, with sales in South Africa, the USA, EU, and Australia.

1 investor

Maymaan develops AquaStroke engine technology, an internal combustion engine that runs on a blend of 70% water and 30% bio-alcohol to produce power while lowering NOx and SOx emissions. The company operates in the cleantech and energy sector focused on lower-emission engine technology.

1 investor

Mazama Energy combines oil & gas and geothermal expertise. The company is in the energy sector.

1 investor

Mazi Mobility operates a shared battery swapping network for electric motorcycles across Africa, enabling riders to quickly exchange depleted batteries for charged ones at swap stations. The company targets boda boda (motorcycle taxi) operators in Nairobi and other African markets seeking affordable clean energy.

1 investor