Alternatives to Walden Catalyst

Paris-based VC investing in early-stage European deeptech startups focused on climate innovation.

A venture capital firm focused on deeptech innovation.

Venture capital firm focused on DeepTech advancements in Europe.

European venture capital firm focused on early-stage technology companies.

Venture capital firm backing early-stage deeptech founders.

Munich-based venture capital firm investing in early-stage AI-native and deep tech startups.

Nuremberg-based venture capital firm investing in early-stage deep tech and B2B software startups.

A pan-Nordic industry alliance for resilience and competitiveness.

Fueling a 21st-century renaissance by increasing the ambition of philanthropists, scientists, and innovators.

AI-first venture capital firm investing in North America and Europe.

Venture capital fund investing in emerging technologies for defense and security.

Empowering Venture Scientists to solve neglected health and planetary challenges through an entrepreneurship-focused doctoral training program.

Global early-stage venture capital firm that builds and invests in the next generation of founders and technology.

Neotribe Ventures is an early to growth-stage venture capital firm investing in breakthrough technologies across various sectors.

Climate tech venture capital firm investing in technologies that reshape cities for sustainability.

The French public investment bank supporting innovation, growth, and development for French companies.

AI-driven drug discovery spinoff from DeepMind using AlphaFold to discover novel medicines.

Europe's first and most active pre-seed and seed fund.

Venture capital firm investing in early-stage technology companies focused on enterprise software, AI, and developer tools.

Underwater communication technology for faster, more reliable data transmission.

Venture capital firm investing in revolutionary technologies and ambitious founders tackling big problems.

Driving Europe's transition to an 'electro-continent' through investment and advocacy.

AI-driven materials discovery platform for next-generation thermoelectric materials.

Developing ultra-low power non-volatile memory technologies for AI, data centers, and edge computing.

Swapping out silicon for lab-grown brains to power AI.

World's leading laser fusion company.

Revolutionizing EV battery manufacturing with solvent-free dry coating technology for lithium-ion battery electrodes.

Facilitating Ukrainian tech startups' expansion into the UK market and connecting them with investors.

UK-based venture capital fund focused on investing in affordable power plants to support the AI sector.

Global energy technology company providing microinverter-based solar-plus-storage systems and intelligent energy management solutions.

Global venture capital firm backing ambitious entrepreneurs from seed to IPO across technology and life sciences.

Europe's only producer of Gallium Oxide epiwafers for next-generation power semiconductor devices.

Developing next-generation nanozyme catalysts to enable a more sustainable and efficient chemical production industry.

8VC is an American venture capital firm founded by Joe Lonsdale.

A pilot deployment studio connecting early-stage energy startups with corporate energy partners, funding, and pilot opportunities.

Deeptech energy startup developing nanocellulose-based renewable energy storage.

Fusion energy startup aiming for commercial power generation.

A venture capital firm focused on investing in deep technology startups.

Venture capital company supporting innovative Bavarian startups and technology companies with growth capital.

Transforms captured CO2 into high-value supermaterials and develops low-temperature diamond coating technology for AI data centers.

Venture capital fund focused on early-stage European startups in energy, industrial transformation, and AI.

Velaura AI develops ultra-low power silicon and software technologies for AI infrastructure, focusing on energy efficiency for data centers and physical AI applications.

Global leader in telecommunications equipment, consumer electronics, and digital solutions.

Building the world's first mass-produced portable nuclear generators for anywhere power delivery.

Comerc Energia provides comprehensive energy and decarbonization solutions for the free energy market.

AI-powered benchmarking and valuation platform for energy storage and renewable assets, providing insights for bankable decisions.

Developing advanced semiconductor solutions for the 5G and beyond era.

A 250 MW utility-scale battery energy storage system in Medway, Massachusetts, enhancing grid stability.

Developing space infrastructure for data centers and beyond.

Charge Robotics builds robots that construct solar farms, automating labor-intensive tasks to accelerate renewable energy deployment.

Provides data and analytics solutions for the energy and environmental sectors.

Fusion startup developing a commercial fusion power plant.

Designs and manufactures high-performance, power-efficient cloud computing processors.

Provider of enterprise artificial intelligence software and applications.

Energy technology company focused on innovative solutions.

Early-stage venture capital firm investing in AI-driven startups, emphasizing inception-stage funding and long-term partnerships.

Developing flexible, efficient, and low-cost solar cells to turn any surface into an energy source.