A global leader in ESG investing
About Trillium Asset Management UK Ltd.
A historically successful investment process, integrated with Trillium’s global leadership in ESG and advocacy, the Trillium UK team combines 45 years of investment experience between Ian Warmerdam and Jamie Mariani, coupled with Trillium’s legacy of nearly 40 years of highly reputable, ESG integrated investment experience.
Firm Fact Sheet - PDFBased in Edinburgh, both Jamie and Ian are highly experienced portfolio managers with a history of building competitive global equity portfolios over many investment cycles.
The team is passionate about the power of sustainability and direct engagement with firms to drive positive impact, with long-standing results in ESG-centric investing and is focused on building upon Trillium’s near 40-year track record of ESG investing and shareholder advocacy with clients in the UK and Europe.
The ESG Global Conviction strategy takes a complementary approach leveraging Trillium’s heritage in proprietary, in-depth and integrated ESG research and commitment to advocacy with Ian Warmerdam’s growth orientated investment process.

Assets Under Management*
Founded
Distinct Strategies
Our Investment Strategies: ESG Global Conviction & ESG International Conviction
We Believe the Best Companies Have a Purpose Beyond Maximising Shareholder Returns
Unconstrained, concentrated, high conviction equity funds not constructed in relation to an index. A long-term, fundamental, bottom-up process, seeking high-quality companies with under-appreciated secular growth across the market-cap spectrum. While our process does not incorporate ‘top-down’ in the traditional sense (we do not try to predict economic / market cycles and typically do not react to geopolitical events) we do orientate the strategies around long-term secular trends we deem to be under-appreciated. We actively seek to mitigate ESG risks and benefit from ESG opportunities through research and active engagement
While we tend to be biased towards quality and growth, strong valuation analysis and work is paramount in our process. We are long-term investors and buy our companies with a ‘hold-forever’ mindset. Our modelling and valuation work is typically done on a 5-year horizon.
Our Sustainable Investment Approach

ESG
Key issues identified & measured at industry level
Industry peers analyzed, ranked using external and independent information sources
Contributions by both fundamental and ESG
research teams
*integrated, dynamic approval process
Risk Management
Strategy specific criteria
Position sizing
Risk controls
Sell discipline
Fundamentals
Industry research focused on predictable growth
Identify enduring franchises
High quality financials
Proven management
Advocacy
Direct engagement
Sign on letters and coalition efforts
Shareholder resolution
Proxy voting