Impax Asset Management

Ian Simm, the founder, serves as CEO and oversees the firm's strategic direction. The listed equities and private infrastructure teams operate with dedicated portfolio managers and investment committees, though Simm remains closely involved in product development and thematic positioning. The firm has not publicly disclosed a single CIO; investment authority sits with the heads of each strategy group under the executive committee.

Impax's private infrastructure team originates deals through a network of developers, project sponsors, and financial intermediaries across Europe and North America. The firm targets operating-stage renewable energy assets and energy-efficiency platforms, often acting as lead or co-lead investor. Impax also participates in auction processes run by utilities and independent power producers divesting non-core renewable portfolios.

No. Impax is a publicly listed specialist asset manager trading on the London Stock Exchange's AIM market. It manages institutional and retail capital through pooled funds and segregated mandates. There is no family-office vehicle or private investment partnership for founder Ian Simm's personal capital commingled with client assets.

Impax's primary focus is on listed equities and mature private infrastructure assets. The firm has not historically maintained a dedicated venture capital strategy of material scale. Its private infrastructure funds target operational renewable energy projects rather than early-stage technology companies, though the listed-equity strategies can include growth-stage companies within their public-markets portfolios.

Impax is built around a sustainability thesis and excludes fossil-fuel extraction, exploration, and production companies from its portfolios. The firm also typically avoids tobacco, weapons manufacturing, and other industries that fail its environmental, social, and governance screens. Its investment universe centers on renewable energy, water infrastructure, resource efficiency, sustainable food, and environmental services.

Impax operates through two distinct business divisions: listed equities, which runs thematic funds including the flagship Impax Environmental Markets trust, and private infrastructure, which manages closed-end funds targeting renewable energy platforms. The two teams share a common sustainability research framework but maintain separate investment processes, client bases, and fee structures.

Impax offers co-investment opportunities to its institutional limited partners, particularly within the private infrastructure funds. Pension funds and sovereign wealth funds have historically co-invested alongside Impax in specific renewable energy platform deals, per the firm's disclosures. Impax itself does not typically co-invest alongside external general partners in areas outside its own mandate.