The Mariner Infrastructure Investment Management team incorporates certain ESG factors into the selection of underlying portfolio assets, with a bias away from coal-fired power facilities and fossil fuel exploration assets. Additionally, the team has a bias toward climate friendly assets. Additionally, several of the team's transactions over the past several years have also focused on impact, incorporating certain conditionality clauses whereby the bank counterparty is obligated to allocate released capital towards sustainability and/or development-focused lending. For example, the team partnered with Credit Agricole to securitize $3 billion of mixed infrastructure assets with a conditionality clause requiring the Bank to redeploy approximately $2 billion of new green lending.
Apart from the integration of certain ESG and impact factors, Mariner has also made a "Charitable Commitment" to donate 5% of its retained asset management fees to a qualified recipient to further its social impact. To date, Mariner has donated over $1 million to the US Fund for UNICEF. In addition, in 2019 Mariner has made a charitable contribution to the High Water Women organization.