About us

We are bold, innovative, efficient and focused on fulfilling our established goals. We are constantly learning and sharing experiences.

We are CLAM.

Nice to meet you.



CLAM has 25 years of experience in the consulting and management market in engineering and projects, especially in the area of environmental issues (ecology, environment, hydrology, geochemistry, waste, monitoring, licensing, among others), with a relevant history of services both in the industrial, service and mining sectors. Managed by its partners José Cláudio Nogueira Vieira, Marcelo Rocha Figueiredo and Leonardo Inácio de Oliveira, CLAM´s technical team is made up of geologists, engineers, geographers, biologists, veterinarians, social scientists, analysts and specialists in many areas of knowledge related to environmental issues, in addition to supervisors, technicians and assistants for the various types of field work developed. CLAM pays special attention to OHSE issues and has a robust OSHSS that is essential and inseparable from its activities.


Act proactively in favor of sustainability of society and natural resources.


To provide innovative solutions with emphasis on customer satisfaction, the evolution and recognition of employees, the sustainability of business and the development of communities, generating value for shareholders.


To be a reference and leader in the segment we operate in, internationally recognized for delivering innovative solutions, technical excellence and the ability to attract and retain talent.

We respect the human beings

  • We treat everyone how we would like to be treated.
  • We respect and value employees.
  • We are transparent and truthful in interpersonal relationships.

We cultivate a positive mindset

  • We are committed to success.
  • We always act as owners of the company.
  • Our team is our strength.
  • We innovate and transform.

We work efficiently and effectively

  • We do more and better with less.
  • We always try to be the best at what we do.

We always improve our management and leadership

  • We educate by example, with discipline and commitment.
  • We comply with our agreements without neglecting to contribute to continuous improvement.
  • We standardize and implement best practices.

We act and evolve with humility

  • We understand that success is constantly being built.
  • We act with simplicity.
  • We always aim at learning more and we are never satisfied.

Our team

Qualified professionals

CLAM teams are made up of engineers, geologists, biologists, geographers, environmental managers, veterinarians, analysts and specialists in social communication, among other specialties in addition to support professionals, all of whom are very well trained, qualified and united in the purpose of efficiently achieving their agreed goals.

Maximum care

Health and safety, our priorities

CLAM has specialized, dedicated teams, with maximum attention and effort in the management of occupational health and safety, an issue of recognized importance by all employees and senior management.


Occupational Health and Safety Policy

1. Promote the health and physical and mental integrity of employees;
2. Identify, manage and reduce the risks associated with the processes and services provided;
3. Work preventively to reduce risks to the Health and Safety of employees;
4. Comply with the legal Health and Safety requirements defined by the competent authorities;
5. Continuously develop and optimize processes related to Health and Safety;
6. Act with the commitment to involve employees in matters and decisions related to OH&S.

Socio-environmental initiatives

Projeto Alazão

CLAM values and knows its responsibility to invest in actions that help transform the world into a better place. Alazão Project works with the reception and treatment of large animals that are victims of abuse and neglect.

Meet our


Marcelo Rocha Figueiredo

Administrative and Financial Director

Marcelo Rocha Figueiredo is responsible for all administrative and financial management at CLAM. He is a Civil Engineer graduated from the School of Engineering at UFMG in 1996 with several courses and postgraduate courses in the area.

José Cláudio Nogueira Vieira

Commercial Director

José Cláudio Nogueira Vieira heads the commercial and market intelligence department. He is a Civil Engineer (UFMG, 1996) with a postgraduate degree in Real Estate Project Management from FUMEC and an MBA in Finance from the Brazilian Institute of Capital Markets.

Leonardo Inácio de Oliveira

Director of Operations

Leonardo Inácio de Oliveira is Director of the operations sector at CLAM. Graduated in Civil Engineering (UFMG, 1996), with Master in Environmental Engineering (Hydrogeology and Soil Contamination, DESA / UFMG, 1999) and Doctorate in Environmental Engineering (Hydrogeology and Soil Contamination) from the University of Michigan (USA, 2004).

Our team


Since 2023, CLAM Meio Ambiente has been committed to the United Nations Global Compact, which addresses corporate initiative responsibility and its principles in the areas of human rights, decent work, the environment, and anti-corruption.

We support

Logo pacto global

Em 2023,  conquistamos a certificação ISO 45001 em Sistema de Gestão de Segurança e Saúde Ocupacional pelo RINA, organismo reconhecido internacionalmente. Esta credencial destaca nosso comprometimento contínuo com a segurança e a saúde de nossos colaboradores, alinhado com as melhores práticas internacionais.

Certified by

In 2022, we achieved recognition of competence from ABNT NBR ISO/IEC 17025 - General requirements for laboratory tests by the Minas Gerais Metrological Network (RMMG). The seal was awarded after a few steps, as well as diagnosis, planning, implementation and auditing. Showing all the commitment of CLAM to continue being a model company, when we talk about consulting and management in engineering and projects related to the environment.

Certified by

Em 2023 os esforços da CLAM rumo à excelência global nos negócios a partir da verificação dos registros de operações da empresa foram reconhecidos pela cial dun & bradstreet. O Data Universal Numbering System conferido nesta ocasião é uma identificação universal que autentica a existência da companhia, para aumentar a confiança nesta marca e facilitar transações comerciais.

Certified by

Certificado DUNS

In August 2020, awarding the efforts made by its employees, CLAM was recognized for its performance in the Legal Compliance Assessment conducted between 08/04/2020 and 08/06/2020 by the Health and Occupational Safety Management of the Vale’s Special Board for Redress and Development.

Certified by


Occupational Health and Safety Policy

In 2018, we were pleased to receive the Safety Quality Award, which we accepted with great pride due to our performance in Vale's Eliezer Batista Complex Project (S11D).

Certified by


In 2021, we were chosen as Outstanding Suppliers in Minas Gerais. Award received for our performance in the Contract Management and Environment of Vale's South/Southeast Corridor.

Certified by


Documentary Evaluation



Assessment of Physical Conditions



Assessment of Physical Conditions



We are committed to the future, and you can be a part of it.