Dallas Innovates, Every Day: Here's what's new + next in North Texas. The city of Richardson is partnering with infrastructure consulting firm Halff to expand its headquarters in the city-the company's largest office firmwide-and to grow its workforce in an effort to enhance full-service engineering and related services in the suburb north of Dallas.... The post Infrastructure Consulting firm Halff to Relocate its Richardson HQ to Bigger Digs in the City appeared first on Dallas Innovates.