OS GROUP aims to achieve the best outcome for our partners while supporting our community, we are backed by generations of hard work and experience - and our reputation reflects this.

For more information on either , please use the buttons below.

Who We Are

Here at OS GROUP, our purpose is simple:

What we do, we do well.

Our focus is to grow our business delivering uncompromised quality with uncompromising safety process and systems. For us, safety of our people, our partners and our community are non-negotiable.

If it’s not safe, it doesn’t happen.

We have built an impeccable reputation for exemplary work within sensitive cultural and environmental areas. Our partners bear testament to our commitment, management, and outcomes of these environments.

Our legacy is important to us.

Northland is our home – our whanau owned business can whakapapa to Ngāpuhi and Te Roroa and long term, our focus is on the prosperity of our rohe (area).

We create value without compromising our values.

Our people are our strength

  • David O'Rourke

    OWNER/DIRECTOR - OS CONSTRUCTION

    BMS (Hons 1st Class)

    • Commerce degree: Accounting, Information Systems, Strategy & Ecommerce

    • Civil, mechanical, and operational experience

    • Wide ranging business, governance, and leadership skills.

    Ph: 027 496 8609

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  • Daniel O'Rourke

    OWNER/DIRECTOR - OS SAFETREE

    • Experienced in scoping (methodology types), pricing, delivery, and reporting

    • Experienced L4 tree faller with hazardous, machine assist and jacking qualifications and competency

    • Experienced in the formation and delivery of H&S processes and systems to NZ forestry best practice standards

    • Excellent organisational skills and client liaison

    Ph: 027 538 6768

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  • Dan Hogg

    OS CONSTRUCTION

    LBP Practitioner

    • Master Builder, extensive New Zealand, United Kingdom & Australian experience

    • Site Lead: wide ranging civil construction and site management and sub-contractor management

    • Many years experience in both high end and standard residential construction

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  • Phil Christini

    OS SAFETREE

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  • Jono Christini

    OS SAFETREE

    • Team leader 15 yrs + practical experience: Forestry, hazardous

    • Experienced L3 tree faller with hazardous and machine assist competency

    • H&S culture advocate and mentor

    • Deep knowledge of forestry best practice standards

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  • Tony Smith

    OS CONSTRUCTION

    NZCE (Civil), NZIM Dip Mgmt, CMEngNZ, CPEng

    • Senior Engineer: 40 years

    • Significant civil and infrastructure engineering experience across New Zealand

    • Extensive residential building renovation and construction experience

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