TD Waterhouse Canada Inc. is a Canadian financial services corporation headquartered in Toronto, Ontario.

Greenline Investor Services merged with Gardiner Group Stockholders in 1987, becoming the first Canadian bank to purchase seats on the Toronto, Montreal, Vancouver and Alberta stock exchanges.

In 2001, with the bursting of the dot-com bubble and lower trade volumes that brought down Waterhouse's share price, TD bought back that minority stake at US$9 per share for only US$378 million, earning a tidy profit on the privatization.

[10] TD Direct Investing Europe, a discount broking subsidiary in the United Kingdom, with headquarters in Leeds, which also used the TD Waterhouse brand, was sold in 2016 to Interactive Investor in a deal financed by JC Flowers.

[13] In light of this, TD Active Trader was announced in 2023 to serve clients that previously used thinkorswim.

[18] The brokerage also offers online educational resources for learning how to trade assets and how to invest.

It works with clients to produce an investment strategy and provides them with portfolio management services.