Belly is a Chicago-based customer rewards and loyalty service for SMBs. Belly has received over $1 million in seed funding from Lightbank. Lightbank was founded by Groupon co-founders Brad Keywell and Eric Lefkofsky.

Yesterday Groupon Inc. (NASDAQ:GRPN) had an initial public offering. The company set their stock price at $20 and yesterday it closed at $26.11. The company was given a valuation of over $17 billion. BusinessInsider.com has compiled a list of how much the executives and investors made from the IPO. Below is the list:

E La Carte is a company that has developed a tablet product for restaurants and other hospitality-related companies. E La Carte has raised $4 million in funding from Lightbank, the company that was made by Groupon co-founders Eric Lefkofsky and Brad Keywell. E La Carte previously raised over $1 million from SV Angel, Dave McClure, Joshua Schachter, Roy Rodenstein, and Skip Sack.

Benzinga has raised $1.5 million from Lightbank, the investment fund started by Groupon founders Eric Lefkofsky and Brad Keywell. Benzinga is a financial media source company that delivers streaming news.

DoubleDutch is an enterprise mobile start-up company that has raised $1.2 million in funding. The lead investor is Lightbank, a venture capital firm run by Groupon co-founders Eric Lefkofsky and Brad Keywell. Charles River Ventures, Launch Capital, Accelerator Ventures, Venture51, Zig Capital, and other angel investors also participated in this round.

Poggled is a daily deals website that is focused on night clubs that has raised $5.6 million. The Chicago based company has a $33 million pre-money valuation. Some of the investors in this round include Eric Lefkofsky, Brad Keywell, and New Enterprise Associates.

Groupon co-founders Eric Lefkofsky and Brad Keywell has invested in Watermelon Express through their investment arm Lightbank. Watermelon makes cross-platform applications to help people prepare for standardized tests like the MCAT, LSAT, GRE, SAT, etc. Some of the test preparation tools include games, practice questions, and diagnostic tests. Watermelon’s apps have been used by 75,000 students across 20 countries. Their apps cost about $30 each. [TechCrunch]

Eric Lefkofsky and Brad Keywell have started an early-stage fund called Lightbank. They plan to invest as much as about $10 million annually in technology companies. This includes startups that need financing that range from $100,000 to $1 million. The two want to help make Chicago a technology hub that helps support the heaps of “untapped entrepreneurial talent.”

Eric Lefkofsky and Brad Keywell met at the University of Michigan. Both founded companies in the past. Lefkofsky founded InnerWorkings, a printing company that went public in 2006. In 2005 the two started a transportation company called Echo Global Logistics. That company went public last year.

In 2007 Eric and Brad started Groupon and raised about $36 million. Groupon has over 3 million subscribers. Between the two of them, Eric and Brad raised over $150 million in funding and generated about $1.5 billion in returns.