H. T. Lyons, Inc., one of the Lehigh Valley's most successful companies, will celebrate its 25th anniversary with an open house Thursday, Oct. 15, from 3 p.m. to 7 p.m.

Coverage is invited. H.T. Lyons employees and customers, along with founder Ted Lyons, will attend.

H.T. Lyons is an energy management, heating, ventilating, air-conditioning and industrial contracting firm with 320 employees. It is a subsidiary of PP&L Resources, Inc.

Directions: H.T. Lyons is located at 6475 Ruch Road, East Allen Township, Northampton County. From Route 22, take Airport Road north, bear left at Lehigh Lumber onto Snowdrift Road. Turn left at the first stop sign onto Colony Drive. Follow that road around a bend and turn left at the Colony Drive Industrial Park sign.