When DigitalGlobe Inc. launched a merger with its rival in the U.S. satellite imaging market, the in-house legal team had to navigate challenges from a constellation of federal government interests.

Government funding cuts for an earth-imaging purchasing program prompted DigitalGlobe and GeoEye Inc. to combine into an industry giant with a market capitalization of $2.1 billion when the deal closed in January 2013. That first required regulatory approval from the Federal Communications Commission and the National Oceanic and Atmospheric Administration.