Newcomb & Boyd has added two new mechanical engineers and four co-ops to its staff.Daniel T. Schultzhas joined the firm andLynda B. Herrigrejoined the firm as a mechanical engineer.Treston Vines,Mark Azarraga,Kai Chi Wong, andNathan Firesheetshave joined the firm as co-ops.

Viessmann Manufacturing has appointed Richard Corcoran general manager of Viessmann Manufacturing Co. (U.S.) Inc. He brings 20 years of experience in the North American plumbing and heating industry to this position.

The Reliable Automatic Sprinkler Co. is pleased to introduce Mike Cauley as their new sales representative covering New England.