Our corporate structure

The chart below sets out the ownership of Thames Water and those group companies that connect Kemble Water Holdings Limited, our ultimate parent company, to the regulated company, Thames Water Utilities Limited.

Ownership chart

List of investors

Our ultimate holding company is Kemble Water Holdings Limited, see the below table for the effective equity interests as at 12 January 2018.

Shareholders % holding


OMERS Infrastructure provides investment advice, investment management services to the OMERS Administration Corporation (OAC) with respect to global infrastructure investment opportunities, in sectors including energy, transportation, and government regulated services. OAC is the trustee and administrator of the OMERS primary pension plan (and trustee of the pension funds). OMERS primary pension plan is a large Canadian public employee pension plan regulated by the Financial Services Commission of Ontario in Canada.
Universities Superannuation Scheme (USS)
Universities Superannuation Scheme was established in 1975 as the principal pension scheme for universities and other higher education institutions in the UK. It has circa 390,000 scheme members across more than 350 institutions and is one of the largest pension schemes in the UK, with total fund assets of over £60 billion (as at March 2017).
Infinity Investments S.A is a subsidiary of the Abu Dhabi Investment Authority (ADIA). ADIA manages a global investment portfolio that is diversified across more than two dozen asset classes and sub-categories.
Wren House
Wren House Infrastructure Management Limited, an English limited liability company, was set up in late 2013 as the global direct infrastructure investment vehicle of the Kuwait Investment Authority (“KIA”). The KIA is the sole shareholder of Wren House. Wren House has been assigned responsibility for building partnerships, sourcing and execution of transactions, as well as asset management. Wren House’s strategy is targeting the creation of a long-term focused, sustainable infrastructure platform and Wren House seeks to do so through partnership investment models for sizeable transactions where large sums of capital can be deployed.
bcIMC is one of Canada’s largest institutional investors within the capital markets. It invests on behalf of public sector clients in British Columbia and its activities help finance the retirement benefits of more than 538,000 plan members, as well as the insurance and benefit funds that cover over 2.3 million workers in British Columbia.
Hermes (BT Pension Scheme)
Hermes GPE is one of Europe's leading independent specialists in global private markets. It manages the asset on behalf of the BT Pension Scheme. Hermes GPE invests in and advises on infrastructure, private equity and credit products on behalf of its clients and is specialised in co-investments, primary fund and secondary investments.
Cicero Investment Corporation
As a sovereign wealth fund, Cicero Investment Corporation is a vehicle to diversify China’s foreign exchange holdings and seek maximum returns for its shareholder within acceptable risk tolerance.
QIC is a global diversified alternative investment firm offering infrastructure, real estate, private equity, liquid strategies and multi-asset investments. It is one of the largest institutional investment managers in Australia.
Aquila GP Inc. is a leading infrastructure management firm and a wholly owned subsidiary of Fiera Infrastructure Inc., a leading investor across all subsectors of the infrastructure asset class.
PGGM (Stichting Pensioenfonds Zorg en Welzijn)
PGGM are a pension fund service provider and manage the pensions for different pension funds, the affiliated employers and their employees