Takeout Tycoons GrubHub and Seamless Merge Food delivery websites join to stave off competitors By Ruth Brown, Newser Staff Posted May 20, 2013 4:39 PM CDT 3 comments Comments (Shutterstock) (Newser) – Yahoo and Tumblr weren't the only online properties getting into bed together today: GrubHub and Seamless, two of the largest food-delivery websites in the US, have announced a merger, combining forces to fend off an increasing number of startup rivals, Bloomberg reports. "This has nothing to do with cost savings; it has everything to do with increasing growth," says GrubHub's co-founder. "We’re totally focused on the top line and how we continue to drive more orders for our restaurants." The two companies had a combined revenue of $100 million last year, processing $875 million in food sales. The merged company will offer ordering from 20,000 restaurants across 500 cities, adds CNNMoney. The deal still has to be approved by regulators.