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Gregory Yianni

Senior Manager - ESG Services London 

Gregory joined JTC in 2022 with a significant background in sustainability.

His current role focusses on expanding the Environmental, Social and Governance (ESG) services offering within JTC to support new and existing clients with their own ESG strategy formation and policy implementation as well as navigating ESG reporting requirements.

Previously at PwC in London, Gregory specialised in working with private equity and financial services clients on a variety of ESG / sustainability projects linked with investments and portfolios within multiple sectors. Some of these projects included designing and delivering training to senior leadership teams in key areas of climate risk, ESG reporting landscape and future impact of TCFD. He is also a ICAEW Chartered Accountant with extensive experience in external audit and ESG assurance of a range of companies including in the renewables and utilities sector.


  • ACA
  • CFA Institute - Certificate in ESG Investing
  • BSc (Hons)

In Their Spare Time

Outside spending time with friends and family, Gregory is an enthusiast in travel and sports particularly football, tennis and recently started playing padel. Particular travelling highlights include seeing orangutans in the Borneo rainforest and a visit to Antarctica is a top priority bucket list item.


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We value shared ownership

We operate around the principle that if our people have a stake in the business, they will do a better job for our clients.

We invest in people

Over 83% of our employees hold a relevant professional qualification or are working towards this through our dedicated JTC Academy.

We embrace technology

We operate a variety of best-in-class systems to deliver and maintain an impeccable standard of administration and use technology to innovate in both service delivery and efficiency.

We value relationships

We aim to work with clients who share our belief in the importance of building strong relationships over time.

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