Rank: 35

Previous Rank: 48

Revenue: $237,000,000

Previous Revenues: $140,322,000 (2012), $66,841,000 (2011)

Location: Chicago, IL

Phone: 312-565-6868

Website: www.merge.com

Executives: Michael W. Ferro, Jr. Chairman Executive; Jeff Surges, CEO

Year Est: 1987

Employees: 900

M&A: Ophthalmic Imaging Systems , 8/11

Major Revenue: 34.8% Software; 47.2% Hardware; 18% Services