OMERS

Outline of OMERS Infrastructure assets:[4]

• Associated British Ports — handles nearly a quarter of the U.K.'s seaborne trade by weight
• Alectra — (2.96%) municipal electricity utility serving over one million customers in Alliston, Aurora, Barrie, Beeton, Brampton, Bradford, Guelph, Hamilton, Markham, Mississauga, Penetanguishene, Richmond Hill, Rockwood, St. Catharines, Thornton, Tottenham and Vaughan in Ontario
• BridgeTex — a crude oil pipeline between the Permian Basin in West Texas and the Gulf Coast, with a capacity of 440,000 barrels per day
• Bruce Power — a company running eight nuclear power reactors owned by Ontario Hydro with a capacity of 6,300 MW.
• CannAmm — a provider of drug and alcohol testing and occupational health services in Canada
• Caruna — a large electricity distribution network in Finland supplying almost 635,000 customers with 12,600 TWh of electricity distributed annually
• Ciel Satellite Group — a provider of satellite services to customers throughout North, Central and South America
• Chicago Skyway — manages, operates and maintains the 12.5-kilometre (7.8-mile) Chicago Skyway toll road under a concession agreement which runs until 2104
• CLH — provides refined oil products transportation and storage in Spain and the U.K.
• Confederation Bridge — a 12.9-km bridge between New Brunswick and Prince Edward Island
• Detroit River Tunnel — the DRTP owns a cross-border rail tunnel linking Detroit, Michigan and southwestern Ontario, a part of the route between the Port of Montreal and Chicago
• DynaLife — an Edmonton-based medical laboratory servicing northern and central Alberta with more than 18 million tests annually.
• Ellevio — Sweden's second largest electricity distributor supplying approximately 900,000 customers
• GNL Quintero — LNG regasification terminal supplying Santiago, Chile and surrounding region
• Indinfravit — five operational toll road concessions in India.
• Leeward Renewable Energy — 19 operating windfarms across nine U.S. states with a capacity of 1.7-gigawatt
• Long Term Care Facilities — 12 long-term care facilities in Ontario
• LifeLabs — a community laboratory services provider, performing more than 100 million lab tests annually serving 19 million patients in Canada
• London City Airport — the closest airport to Central London
• MapleCo / SGN Smart — MapleCo funds the purchase and installation of gas and electricity smart meters under long-term rental contractors with U.K. energy supply companies
• MCV — a natural gas-fired combined heat and power plant in Michigan with a 1,600+ MW electricity capacity, and 1.5 million pounds per hour process steam production capacity
• NET4GAS — Exclusive gas transmission system operator in the Czech Republic, operating more than 3,800 km of pipelines and transporting 45 billion m³ of natural gas annually
• NextBridge Infrastructure — NextBridge is a partnership between OMERS Infrastructure, NextEra Energy and Enbridge established to develop a 450-km regulated transmission line in northern Ontario
• Niagara Health System — a 375-bed acute care hospital facility located in St. Catherines, Ontario, with a contract with the Government of Ontario in 2009
• New Jersey Lottery — a 15-year contract to manage it
• Nova Scotia Schools — 16 public schools in Nova Scotia, which have been leased to the Province through 2020
• Oncor — a transmission and distribution company in Texas, providing electricity to more than 10 million customers via more than 119,000 miles (191,000 km) of transmission and distribution lines
• Port of Melbourne — a port that is visited by more than 3,000 ships per year
• Royal Ottawa Hospital — a 188-bed mental health care centre with a contract from the Government of Ontario since 2003
• Scotia Gas Networks — The U.K.'s second largest gas distribution network, supplying approximately 5.8 million residential, commercial and industrial consumers in Scotland and Southeast England
• Tank & Rast — a network of motorway service areas in Germany with 500 million visitors each year
• Teranet — The exclusive provider of essential, statutory electronic property search and registration services under long-term concessions in the provinces of Ontario and Manitoba
• Thames Water — a water utility in England and Wales, providing services to approximately 9 million water and 15 million wastewater customers across London and the Thames Valley
• Vento II — a 49% interest in a portfolio of four U.S. wind farms located in Minnesota, Illinois, Oregon and Texas, with a capacity of 599 megawatts
• William Osler Health System — a 608-bed, full-service community hospital in Brampton, Ontario with a contract with the Government of Ontario since 2003

Among the private companies OPE owns are Marketwired (purchased at the end of 2006)[5] and Oxford Properties (purchased at the beginning of 2003).[6]

OMERS and Apax Partners (a fund OMERS invests in) jointly own Cengage Learning, a large education resource company formerly known as Thomson Learning before OMERS and Apax Partners bought it on May 11, 2007. Some parts of Thomson Learning had been sold off to other groups before this sale. Among Cengage's major brands are Gale (formerly Thomson Gale) and Nelson Education (Nelson Canada, not Nelson USA Education).

In 2019, OMERS ventures launched a $315M European Venture fund, a fully owned subsidiary of OMERS Ventures led by Managing Partner Harry Briggs.[7]