Earnings season is in full swing. Not only is it a great time to see the most up-to-date financials of the world's largest companies, but it's also the most popular time for companies to raise their dividends. Let's take a closer look at two companies that just raised their dividends by 2-4%, so you can determine if you should invest in one of them today. Chartwell Retirement Residences ( TSX:CSH.UN ) Chartwell is Canada's largest owner and operator of senior residences with 138 owned, 46 partially owned, and 10 managed communities across the country. In its fiscal 2017 fourth-quarter and full-year earnings release on February 22, Chartwell announced a 2.1% increase to its monthly distribution to $0.049 per unit, equating to $0.588 per unit on an annualized basis, which brings its yield up to about 3.9% today. Investors must make three additional notes. First, the first payment at the increased rate is payable on April 16 to shareholders of record on March 31.