First Onsite delivers critical infrastructure services through MacIvor Onsite, a purpose-built integrator specializing in utility-scale power generation, hyperscale data centers, and mission-critical facilities.

MacIvor Onsite combines MacIvor Engineering‘s EPCM and engineering governance expertise with First Onsite’s national construction scale and field execution strength. The result is a single, accountable platform that aligns engineering, procurement, construction management, commissioning, operations readiness, and long-term asset support from early project development through commercial operation.

As Lead Integrator, MacIvor Onsite holds a single point of accountability across all critical interfaces — reducing interface risk, strengthening schedule and cost control, and supporting reliable transition from construction into operations.