• Transbay Transit Center, San Francisco

    Transbay Transit Center, San Francisco

  • Transbay Transit Center, Night Welding, San Francisco

    Transbay Transit Center, Night Welding, San Francisco

  • Merritt College Health & Science Building, Oakland

    Merritt College Health & Science Building, Oakland

  • The Durrant (ISI Banner and Greg Santiago PM), Berkeley

    The Durrant (ISI Banner and Greg Santiago PM), Berkeley

  • UC Berkeley Art Museum & Pacific Film Archive

    UC Berkeley Art Museum & Pacific Film Archive

  • 201 Folsom Street, The Lumina, San Francisco

    201 Folsom Street, The Lumina, San Francisco

  • 1501 Filbert Street, San Francisco

    1501 Filbert Street, San Francisco

  • War Memorial Veterans Building, San Francisco

    War Memorial Veterans Building, San Francisco

  • Emergency Welding Inspection during Fleetweek, San Francisco

    Emergency Welding Inspection during Fleetweek, San Francisco

Quality is our cornerstone. Safety is our commitment.

At ISI, we believe in creating a safe environment, from the structures we inspect, to the materials we test. By embracing a culture of quality, we focus on perfecting our abilities, products and processes. Every ISI employee contributes toward this goal, creating a synergy that spurs innovation and provides our clients with exceptional value.

SBE | MWBE | DBE