According to Dealogic, there are a lot of multi- million dollar companies spent huge fortune to expand their businesses by buying their competitors. They believed that buying their competitor is much wiser to grow their business rather than trying to make it on their own.

Here are some of the companies who spent hefty check on acquisitions in 2015 to grow their business by joining forces with their competitors.

Pfizer and Allergan deal

Pfizer is the maker of some known medical drugs around the world, among of it are: Lipitor, which can lower high cholesterol and triglyceride levels and Lyrica that can treat muscle pain. But after its $148.57 billion deal, it is expected that company would eventually become the largest drugmaker when it comes to sales.

AB InBev buys SABMiller

The company behind Budweiser, Corona and Stella Artois is expected to expand its business to Africa and Asia after it agreed to buy the maker of Peroni and Miller Genuine Draft for $105.56 billion in October.

Dow Chemical and DuPont deal

Dow Chemical agreed to buy competitor DuPont with an agreement that they will combine both companies. The deal was closed for $62.38 billion. After the auspicious agreement, Dow DuPont will be starting to make products including Teflon coatings, Kevalr fibers and Ziploc bags.

Heinz and Kraft Foods deal

Both companies brought together brands including Oscar Meyer, Capri Sun, Ore-Ida, Maxwell House after they Heinz purchased Kraft Foods for $53.83 billion in July.

Charter Communications buys Time Warner Cable

In May, Charter Communications agreed to buy Time Warner Cable for $56.80 billion. The company is also planning to buy Bright House Networks for $10 billion. If ever materialize, it will make Charter one of the largest TV and internet provider in U.S. Comcast already tried to buy Time Warner in 2014, but it was hampered by the U.S government.