Since 1918, Triangle has been providing construction services to meet the unique needs of each client. We have expertise and ... insight to meet a wide range of challenges, and offer our clients the flexibility of four construction methods: * Construction management * Design/build * General contracting * Integrated project delivery (IPD) Headquartered in Grand Rapids, Michigan, our reputation in the industry is well-recognized and built upon the dedication, excellence, and professionalism of our highly skilled staff. Triangle builds exceptional facilities, great people, and strong communities. read more