We work for
cleaner energy
We transform valuable resources for the territory
avoided
treated
Our Mission
We drive a new circular economy model that transforms agricultural and livestock by-products into renewable energy, recovered nutrients, and new opportunities for rural areas.
We develop solutions based on technological innovation, sustainability, and knowledge of the agricultural and livestock sector to recover the value of resources, reduce emissions, and contribute to the competitiveness and economic revitalization of rural areas.
Discover why Biomethane is the paradigm of the Circular Economy
At IAMcarbonzero, we are at the forefront of the transition towards a sustainable future, leading the creation and operation of state-of-the-art biomethane plants. Our mission is to transform organic waste into renewable energy, significantly reducing carbon emissions and offering solutions that are not only ecological and profitable, but also promote ecosystem regeneration. We focus on maximizing the positive impact on the natural environment, actively contributing to environmental, social, and economic preservation and restoration.
Vision
We aim to be the benchmark company in the sustainable transformation of agricultural and livestock resources.
We lead a model that integrates renewable energy, nutrient recovery, and territorial development, demonstrating that the circular economy, supported by technological innovation, can strengthen the competitiveness of the agricultural and livestock sector, accelerate the energy transition, and generate prosperity for rural communities.
We work alongside farmers, livestock breeders, companies, and local administrations to generate a positive and balanced impact at an environmental, economic, and social level.
About us
At IAM Carbonzero, we develop and manage a portfolio of biomethane, nutrient recovery, and associated logistics solution projects in Spain and Portugal, driving a circular economy model that transforms agricultural and livestock by-products into valuable resources for the territory.
We have the financial strength of top-tier public and private investors through two funds classified as Article 9 of the Sustainable Finance Disclosure Regulation (SFDR), promoted by MAPFRE:
- MAPFRE Energías Renovables II, FCR, the first venture capital fund specialized in biomethane in Spain.
- BioEnergy Agro Iberia, FCR, focused on the development of biomethane, biofertilizer, and associated logistics solution projects in the Iberian Peninsula.
Our goal is to drive the transition towards a more sustainable model through the production of renewable energy, the recovery of nutrients for agriculture
and the efficient use of agricultural and livestock resources, contributing to decarbonization, the circular economy, and the strengthening of energy and food autonomy.
We believe that the energy transition will only be fully sustainable when it also contributes to improving the competitiveness of the agricultural sector and generating new opportunities for rural areas.
The Team. Talent to transform resources into value
At IAM Carbonzero, we believe that the transition towards a more sustainable model requires much more than technology. It requires knowledge, experience, and a comprehensive vision capable of connecting the agricultural sector, energy, the environment, finance, and territorial development.
Therefore, we have assembled a multidisciplinary team made up of engineers, agronomists, biologists, economists, lawyers, and specialists in energy, sustainability, project development, and communication, capable of leading all phases of the life cycle of state-of-the-art green infrastructure: from the identification of opportunities, engineering, and administrative processing to financing, construction, operation, and integration with the territory.
We combine more than 20 years of experience in the energy sector and renewable energies, acquired in leading companies (IBEX 35), with the agility, innovation, and adaptability of a company specialized in the circular economy.
We integrate sustainability, technological innovation, and technical excellence to develop solutions that generate environmental, economic, and social value, contributing to the competitiveness of the agricultural sector and the revitalization of rural areas.

J. Marcos González
Technical Director

M. Álvaro Mayordomo
Corporate and Operations Director

Hector Mayordomo
Environment and Permitting Director

Bruno Masoliver
Legal Director

Miriam G. Armesto
Communication and Sustainability Director

Ciro García
Technical Director
Marta García
Head of Resources, Administration and Purchasing

Sara Manjón
Head of Socialization

Diego Ruiz
Head of Business Development

Iñigo Chillón
Biomethane, CO2, By-products Offtake

Rafael Berrocal
Head of Engineering and Processes

Antonio Barco
Head of Environment Extremadura

Juan Romero
Head of Construction

José María Tovar
Territorial Director Extremadura

Blanca Benito
Head of Territorial Area CyL and Madrid/CLM North

Jose Luís Alcaide
Head of Operations and Maintenance

Adolfo Jiménez-Caminero
Engineering, Processes and Construction Coordinator

Jorge Casares
Project Manager

Marina Clemente
Permits and Environment Technician

Javier Pereyra
Head of Territorial Area CLM

Rafael Soria
Head of Biofertilizer Unit

Jesus Calle
Head of Territorial Area North
Eva Ribadavia
Head of Taxation

Marinela Ilie
Administration and Accounting
Hector Mayordomo
Bruno Masoliver
Miriam G. Armesto
Ciro García
Marta García
Marta García
Sara Manjón
Diego Ruiz
Iñigo Chillón
Rafael Berrocal
Antonio Barco
José María Tovar
Blanca Benito
Jose Luís Alcaide
Adolfo Jiménez-Caminero
Jorge Casares
Marina Clemente
Javier Pereyra
Rafael Soria
Jesus Calle
Eva Ribadavia
Eva Ribadavia
Marinela Ilie