Who We Are

Prizma is a niche ESG advisory practice focused on developments, operations, and investments in emerging markets. Our seasoned team members trouble-shoot ESIAs to make them bankable, serve as Independent Environmental and Social Consultants (IESC) and on Independent Engineer (IE) teams advising investors, generate ESG and Sustainability Reports, provide verification and assurance services, and are sought after expert witnesses for international arbitration. 

Allison Rippin Armstrong, ESG & Sustainability Adviser

Allison is a biologist and environmental scientist with over 25 years of experience in permitting, regulatory processes and environmental compliance, working with Indigenous organizations, resource companies, regulatory agencies, indigenous, territorial...

Dr. Don Proebstel, E&S and Renewable Energy Advisor

Don has over 25 years of professional experience, including VP Environmental and Sustainability at Gold Reserve Inc.; Senior Environmental & Social Analyst with the OPIC (now DFC); Senior Analyst Pike Research (now Navigant Research); and Senior Environmental Analyst at AATA International.

Dr. Denes Bulkai, Senior Environmental & Social Expert

Denes has over 35 years of professional experience in environmental and social due diligence, energy efficiency projects and feasibility studies. This includes serving 17 years as a Senior Environmental Advisor at the EBRD in London. Before joining...

Alexandra Armitage, Senior SIA Advisor

Ms. Alex Armitage is a Senior Social Impact Assessment (SIA) Advisor and Associate of Prizma, with over 13 years of experience. Alex has carried out research and assessments in the mining, oil and gas, agriculture, and renewable power sectors across...

Timothy McLaughlin, Senior Social Performance Advisor

Tim has over 23 years’ experience helping mining, oil/gas and infrastructure projects in emerging markets to conform with the E&S performance requirements of international financial institutions (IFC, World Bank, EBRD, Equator Principles). He h...

Felipe Yanes, Senior Renewable Advisor

Felipe is a mechanical civil engineer, holds a master's degree in administration and finance, and has over 23 years of work experience. Felipe has been leading renewable energy projects and related consulting services in Chile and LATAM region for the...

Dr. Rana Aly El Abbady, Senior HSE Consultant & Trainer

Dr. Rana Aly El Abbady is a Senior HSE Consultant & Trainer based in Egypt. She has over 10 years of HSE and Facility Management experience, including as HSE Manager at IFC-financed Acciona (3x50MW -AlSubh/Rising Sun/Sun rise), IFC-financed Phoenix...

Elizabeth Freele, Social Performance Advisor

Ms. Elizabeth Freele has over 12 years of experience as a social performance and sustainability professional and is a Senior Prizma Associate. Her experience spans Africa, Europe, Oceania, and the Americas, including mining, agriculture, renewable...

Rachel A. Aron, Social Development Advisor

Rachel is a seasoned advisor with over 15 years of experience, including 12 years at the African Development Bank Group (AfDB) covering diverse projects across Africa, including in fragile and post-conflict countries. Rachel’s experience i...

Luisa Montes, Environmental Economist

Luisa has 25 years of experience as an environmental economist. She was part of the first economic analysis unit at the Ministry of the Environment and Natural Resources in Mexico, and the Director for Biodiversity, Bio Safety and Access to Natural Resources...

Oliver Nazari-Witt, ESG Consultant

Oliver Nazari-Witt is a part-time ESG Consultant and a full-time student at Georgetown University with a passion for government and sustainability studies. As a member of the Georgetown Impact Investment Group, Oliver has a strong focus on ESG principles...

Mark King, Senior ESG Associate

Mark’s brings over thirty years of international experience to his ESG advisory practice, which is focused on challenging developments and investments around the world. This includes four years as the Chief Officer, Environmental and Social Standards a...