A multidisciplinary consultancy dedicated to science-based environmental and sustainability advisory for complex projects.
Keystone Advisory Associates is a multidisciplinary environmental and sustainability consultancy based in Turkey, serving clients across the region and internationally. We provide science-based advisory services to developers, investors, financial institutions, and operators working on complex infrastructure, energy, and industrial projects.
Our team combines environmental engineering, hydrogeology, ecology, and ESG expertise with deep practical experience in demanding project environments. We work in alignment with international standards including IFC Performance Standards, EU Taxonomy, EBRD Environmental and Social Policy, and ISO management system frameworks.
Our assessments are grounded in evidence-based methodology and peer-reviewed practices.
We provide objective analysis free from conflicts of interest.
Extensive experience working across diverse regulatory and environmental contexts.
We deliver practical, actionable recommendations tailored to project realities.
We envision a future where environmental sustainability and economic development are fully integrated from the earliest stages of project planning.
We achieve this by combining technical excellence with practical experience and genuine commitment to environmental protection and sustainability.
Comprehensive ESIA for infrastructure, energy, and industrial projects to international standards.
Environmental and social risk assessment for project finance, M&A, and investment decisions.
Site investigation, risk assessment, and remediation management for contaminated land and groundwater.
Groundwater assessment, hydrological studies, and water resource management.
Energy auditing, efficiency consulting, GHG assessment, and renewable energy advisory.
Ground investigation and geotechnical assessment for infrastructure and construction projects.
A structured, transparent methodology from project scoping to final delivery.
We define project scope, key environmental issues, and assessment methodology in close consultation with the client.
Field surveys, data collection, laboratory analysis, and baseline characterisation using robust scientific methods.
Impact prediction, risk evaluation, and significance determination against applicable standards and regulations.
Clear, bankable reports with practical mitigation measures, monitoring plans, and management frameworks.