To develop guidance and capacity in biodiversity and impact assessment, the Convention on Biological Diversity collaborates with a wide range of partners including:

The Calabash Project seeks to identify and expand opportunities for civil society involvement in decision-making through environmental assessment processes, and to define issues, options, approaches and tools for integrating environmental planning, assessment and management into small-scale community driven developments.

The Canadian Environmental Assessment Agency provides Canadians with high-quality environmental assessments that contribute to informed decision making, in support of sustainable development. It administers a Participant Funding Program which supports individuals and non-profit organizations interested in participating in environmental assessments.

The Convention on Environmental Impact Assessment in a Transboundary Context (Espoo, 1991) sets out the obligations of Parties to assess the environmental impact of certain activities at an early stage of planning. It also lays down the general obligation of States to notify and consult each other on all major projects under consideration that are likely to have a significant adverse environmental impact across borders.

The International Association for Impact Assessment is a forum for advancing innovation, development and communication of best practice in impact assessment. Its international membership promotes development of local and global capacity for the application of environmental assessment in which sound science and full public participation provide a foundation for equitable and sustainable development.

The International Council on Mining & Minerals members offer strategic industry leadership towards achieving continuous improvements in sustainable development performance in the mining, minerals and metals industry including through the development of impact assessment guidance.

IUCN - The World Conservation Union seeks to develop and promote best practice guidelines and principles on environmental impact assessment, including through a dialogue on Mining and Biodiversity, which is set in the context of broader interaction between the conservation community and extractives industries on environmental and social issues.

The Commission for Environmental Assessment is a private foundation, with a budget of its own funded by government subsidies. It acts as an independent expert committee and is involved in all Environmental Impact Assessments in the Netherlands. Independent expertise is the Commission's hallmark. It has no administrative responsibilities and does not interfere with political judgements. The Commission checks compliance with the legislative requirements for EIA and SEA and assesses the quality of information available to administrators when making their decision.

The South Asian Regional Environment Assessment Association seeks to build the environmental impact assessment (EIA) capacity of the South Asian countries through establishing and strengthening an independent institutional network that promotes an effective use of impact assessment techniques for integrating environment and development.

The Southern African Institute for Environmental Assessment is a non-profit Environmental Trust, whose mission is to support sustainable development in Southern Africa through promoting the effective and efficient use of Environmental Assessment as a planning tool. The Institute provides strategic support to governments, local authorities, development agencies, NGOs and private sector clients, who are increasingly aware of the need to incorporate Environmental Assessment as an integral part of their planning.

The United Nations Environment Programme seeks to provide leadership and encourage partnership in caring for the environment by inspiring, informing, and enabling nations and peoples to improve their quality of life without compromising that of future generations. Its Economics and Trade Branch is launching a trade and biodiversity initiative, which aims to support the implementation of the Convention on Biological Diversity by building national institutional and governmental capacities in developing countries for assessing, designing and implementing policies that maximize development gains from trade-related policies in the agricultural sector while minimizing the impact on agricultural biodiversity.

The United Nations University seeks to contribute to efforts to resolve the pressing global problems through research. In this vein, UNU has established a Wiki on Environmental Impact Assessment, which provides an online platform for the international community to engage in knowledge building on Impact Assessment.