E4tech is an energy and sustainability strategy consultancy. We work internationally with a wide range of organisations to maximise opportunities in the clean energy transition.

Our expert advice and guidance around sustainable energy solutions is based on our commitment to delivering better outcomes for the environment and businesses.



We are hiring for multiple positions based in London and Lausanne, to find out more visit Working with us.

Strategy development

E4tech provides strategy development, analysis and support for early-stage organisations, major corporations, governments, and multilateral institutions.

Investor services

E4tech conducts technical, market and business assessments of target organisations as part of full due diligence processes, and similar assessments of major projects where government or multilateral funding is sought.

Techno-economic analysis

The E4tech team is also very comfortable with in-depth techno-economic and other analysis to support our clients with business and strategy development, positioning and other issues.


Sustainability is at the heart of everything we do; we conduct LCAs, model land-use change and develop methodologies for carbon accounting in fuels, as well as supporting the process and methods of developing robust standards.

Policy Support and Review

Sustainability is now a key policy driver and area of policy intervention, leading to new policy instruments and new markets. We understand that rapidly changing boundary conditions define the energy technology sector and offer support and analysis to aid effective decision making within those conditions.

Market Analysis

We provide bespoke assessments of current and future markets and their composition, assessing technology, competition and opportunities. Through modelling, we quantify market sizes and dynamics and help you identify promising locations, evaluate risks and develop entry and mitigation strategies.

Bioenergy & biochemicals

- Novel bioenergy technologies, related feedstocks and biomass systems

Sustainability & resources

Methodology, policy development and sustainability assessments

Fuel cells & hydrogen

Clean energy solutions electronics to transport and power generation

Low carbon transport

Propulsion systems, fuels and energy supply from fuel feedstocks to vehicle end-of-life

System transition enablers

Emerging sustainable technologies, energy storage both large- and small-scale

Innovation & policy

New and emerging energy prospects

Latest Knowledge

E4tech explores how Energy Community Contracting Parties could meet Renewable Energy Directive targets

E4tech contributed to a study for the Energy Community promoting the use of renewable energy in the transport sector in Albania, Bosnia and Herzegovina, Kosovo, North Macedonia, Georgia, Moldova, Montenegro, Serbia and Ukraine - the Energy Community Contracting Parties.