About Rio

Thomas specialises in financial services, having held previous roles at Deloitte, where he focused on EU Taxonomy Regulation, developing a 'Taxonomy Map' for global corporate and financial clients. He has extensive experience advising on sustainability frameworks like PCAF, TCFD, SBTi, and compliance with CSRD and SFDR, including Article 8/9 disclosures and double materiality. Thomas is skilled in sustainability standards such as CDP, SASB, and ISSB, enhancing informed decision-making towards net zero targets.

Jess Harris leads teams in delivering sustainability solutions for an array of global projects and sectors. Jess has a strong background in carbon accounting and disclosure, delivering TCFD, CDP, ESOS, SECR, RE100, SBTi, and annual GHG reporting projects across financial services, public sector, and construction industries.

Joe is a Senior Consultant at Rio, where he leverages his expertise to empower a diverse clientele. From working on key accounts ranging from FTSE 100 and 250 companies to prominent financial service firms, Joe has helped to guide businesses on their sustainability journeys. As a fully-fledged practitioner of IEMA Joe holds experience in Greenhouse Gas (GHG) Accounting, impact assessments, and comprehensive materiality assessments.

Katharina is a Senior Consultant at Rio. Having led carbon strategy and Environmental, Social and Governance (ESG) reporting for a large beauty retailer, Katharina has delivered TCFD, CDP Climate, DJSI, Sustainability, and GHG reports and a double materiality assessment to inform a holistic sustainability strategy.

As a Sustainability Consultant with Rio, Allegra lends her expertise to clients in financial services, renewable energy, infrastructure, and government. With a background in climate science and environmental policy, Allegra has consistently delivered climate risk assessments, CFD, CDP, SBTi, ESG data metric analysis, and GHG accounting for quarterly and annual reporting.

Clémentine is a Sustainability Consultant with Rio, her primary experience is in carbon accounting in public sector, international development organisations, waste management services and financial services. She has delivered CFD, CDP, SBTi, and GHG quarterly and annual reporting, with an emphasis in ESG data analytics. ​

Charlotte is a Sustainability Analyst with Rio. She specialises in data management for a diverse client set including clients in the infrastructure, government and waste management sectors. She also provides support on quarterly and annual reports for clients including ESG analysis and GGC returns.

Calum is a Sustainability Analyst at Rio, where he leverages his strong understanding of ESG frameworks, policies, and reporting directives. With experience spanning private, public, and third-sector organisations, he specialises in providing data support and analysis. Calum’s expertise helps clients make informed decisions and advance their sustainability strategies.