Consultancy Firms

The Responsible Minerals Initiative provides this list of consultancy firms that are willing and capable to assist with the implementation of the OECD Due Diligence Guidance. The listed service providers are familiar with the issue of responsibly sourced minerals, due diligence, reporting and compliance, and/or have familiarity with in-region transportation/trade paths and issues, and familiarity with the goals of the existing in-region assurance schemes (ITSCI, RCS Global Group / Better Mining).

The RMI is providing this as a service to interested stakeholders and does not endorse or make any claims about the products or services of these providers or their website links. If your company is interested in being included on this list, please contact

Note that per the OECD Guidance, any firm a company chooses to validate their due diligence practices should not be the same firm that helped develop assurance schemes utilized by the company.

Service Providers


Point of Contact


Focus Areas

Description of Services

Andrew Cooper - Sustainability Consultant

Andrew Cooper (

Audit Support, Consulting, Strategic Advisory

Sustainability consultancy with expertise in pre-audit support, supply chain due diligence and responsible business practices, standards development


Benjamin Clair (


Research, advisory, compliance systems design and deployment

The Dragonfly Initiative (TDI)

Assheton Stewart Carter (

Consulting, Communications, Management

Sustainability advisory firm promoting environmentally, socially, and financially responsible initiatives

Kumi Consulting Ltd.

Andrew Britton (

Consulting, Research

Sustainability consultancy firm with a focus on business operations in developing countries

Levin Sources

Estelle Levin-Nally (

Consulting, Research, Training

Consultancy and social venture promoting responsible mineral sourcing and raw materials sustainability

Liz Muller & Partners

Liz Muller (

Auditing, Strategic Advisory

Specializes in multi-industry initiatives that create positive change throughout complex supply chains - from raw material to consumer product

RCS Global

Auditing, Strategic Advisory, Training

Advisory and audit services firm with expertise on responsible mineral sourcing, mine site assessments, and training programs

Responsible Trade, LLC

Mike Loch (

Auditing, Strategic Advisory

Advisory company helping to build responsible minerals supply chains

Ropes and Gray

Michael Littenburg (

Legal, Strategic Advisory

Michael R. Littenberg has more than 25 years of experience representing U.S. and foreign public and private companies, investment banks, private equity funds and other private investment funds in transactional matters, including securities offerings and mergers and acquisitions


Antoine Heuty (

Communications, Data Analytics Implementation

Assesses risk management systems and engages actors to create value across global supply chains