Columbia Threadneedle Investments | 79,818 followers on LinkedIn. At Columbia Threadneedle Investments, we invest to make a difference in your world, and the wider world. Millions of people rely on us to manage their money and invest for their future; together they entrust us with over $600 billion*. We are globally connected with a team of over 650 investment professionals providing diverse expertise, spanning almost every asset class and market.