Trinity Sling stays on top of overhead lifting and rigging product knowledge and new developments in many different industries: construction, manufacturing, pressure pumping and hydraulic fracing, fall protection, tower and wind energy, highway guard rail, geosynthetics, cargo, and architectural railing. Established in 1979, Trinity Sling has grown into a provider of rigging materials for railing and overhead lifting in many different industries and associated pressure pumping and hydraulic fracing iron restraint systems throughout North America.