Ocean Science Consulting NZ (Asia-Pacific) Limited (OSC-NZ) is the New Zealand branch of Ocean Science Consulting Ltd (OSC; www.osc.co.uk). OSC-NZ offers a comprehensive service to clients undertaking seismic surveys in New Zealand and the Asia-Pacific region, handling all environmental requirements from beginning to end. Services include supply of Marine Mammal Observers (MMO), Marine Fauna Observers (MFO), Passive Acoustic Monitoring (PAM) Operators and towed and static hydrophone arrays. Additional services include project planning and management, marine policy and regulation development, permit applications, government liaison, iwi consultation & stakeholder engagement, Environmental Impact Assessments (EIA), Marine Mammal Mitigation Plans (MMMP), and advice documents. Our acousticians undertake Sound-Transmission-Loss Modelling (STLM - for the purposes of the Seismic Code), noise measurement and propagation modelling and real-time-attended-noise-validation monitoring and modelling (noise-level limits/thresholds). OSC-NZ also offers a New Zealand Department of Conservation (DOC) accredited Marine Mammal Observer and Passive Acoustic Monitoring (PAM) training course and competency assessment for experienced MMOs and PAM Operators.