Gilbert + Tobin Executive and Leadership Team

September, 2026

Leadership Overview

Gilbert + Tobin has 4 executives leading key functions including strategy, technology, finance, and human resources.

Committed to delivering exceptional legal outcomes, Gilbert + Tobin drives innovation across financial services, healthcare, and infrastructure sectors to navigate the complex Australian regulatory landscape with precision and expertise.

Leadership Roles at Gilbert + Tobin

  • Chief Executive Officer - Sam Nickless
  • Chief Financial Officer - Nyree Dayeian
  • Chief Information Officer - Mitchell Owens
  • Chief People Officer - Anna Sparkes
  • Sam Nickless - Chief Executive Officer

    Sam Nickless, the Chief Executive Officer at Gilbert + Tobin, directs the firm's overarching strategic vision and operational performance. By aligning corporate advisory services with evolving market demands, the Chief Executive Officer ensures the firm maintains a competitive edge in the Australian legal sector. Sam Nickless oversees high-level engagement with public and private sector clients, fostering growth across critical practice areas like mergers and acquisitions. This leadership role involves constant collaboration with the Board to refine long-term objectives and enhance service delivery models. Through rigorous management of firm-wide initiatives, the Chief Executive Officer optimizes resource allocation to support complex legal matters. By prioritizing innovation and client-centric solutions, Nickless secures the firm's position as a market leader. The Chief Executive Officer consistently drives excellence, ensuring that every legal strategy aligns with the broader mission of providing sophisticated, high-impact counsel to diverse industry partners.

    Nyree Dayeian - Chief Financial Officer

    Nyree Dayeian, the Chief Financial Officer at Gilbert + Tobin, manages the firm's fiscal health and long-term financial planning. By overseeing capital allocation, budgeting, and revenue forecasting, the Chief Financial Officer ensures the firm possesses the resources necessary to support complex legal operations. Nyree Dayeian drives financial transparency and accountability, providing the Board with critical insights into market performance and profitability across various sectors like healthcare and financial services. This leadership role involves managing risk and ensuring compliance with all financial regulations. By optimizing cost structures and investment strategies, the Chief Financial Officer supports the firm's commitment to delivering exceptional legal outcomes. Dayeian coordinates with other C-suite leaders to align financial goals with the firm's broader strategic objectives. Through meticulous oversight of fiscal operations, the Chief Financial Officer maintains the firm's stability, enabling sustained growth and the continued pursuit of innovative solutions within the competitive Australian legal market.

    Mitchell Owens - Chief Information Officer

    Mitchell Owens, the Chief Information Officer at Gilbert + Tobin, architects the firm's digital infrastructure and technological capabilities. By implementing advanced cybersecurity protocols and data management systems, the Chief Information Officer protects sensitive client information across all legal sectors. Mitchell Owens drives the integration of legal technology tools that streamline corporate advisory workflows and enhance regulatory compliance efficiency. This leadership role requires constant coordination with the IT department to ensure seamless operations across the firm's national footprint. By modernizing digital platforms, the Chief Information Officer enables legal teams to deliver faster, more accurate results for complex infrastructure and technology projects. Owens prioritizes scalable solutions that support the firm's growth and operational agility. Through the deployment of cutting-edge software, the Chief Information Officer maintains the firm's reputation for technological sophistication, ensuring that digital assets remain robust, secure, and fully aligned with the evolving needs of the modern legal landscape.

    Anna Sparkes - Chief People Officer

    Anna Sparkes, the Chief People Officer at Gilbert + Tobin, directs the firm's human capital strategy and talent development initiatives. By fostering a culture of excellence and inclusion, the Chief People Officer ensures the firm attracts and retains top-tier legal talent capable of handling complex, high-stakes matters. Anna Sparkes oversees professional development programs, performance management systems, and employee engagement strategies that align with the firm's mission. This leadership role involves collaborating with department heads to build high-performing teams across all practice areas, including corporate advisory and regulatory compliance. By prioritizing workforce wellness and career progression, the Chief People Officer strengthens the firm's internal capabilities. Sparkes drives initiatives that promote diversity and leadership growth, ensuring the firm remains a preferred destination for legal professionals. Through the strategic management of human resources, the Chief People Officer supports the firm's ability to deliver innovative, high-quality legal services to clients throughout Australia.
    Anna Sparkes

    Frequently Asked Questions Regarding Gilbert + Tobin Top Executives and Leadership Team

    Who leads Gilbert + Tobin?
    Gilbert + Tobin is led by Sam Nickless (Chief Executive Officer), along with executives such as Nyree Dayeian (Chief Financial Officer) and Mitchell Owens (Chief Information Officer).
    Who is part of Gilbert + Tobin’s executive team?
    The executive team of Gilbert + Tobin includes leaders such as Sam Nickless (Chief Executive Officer), Nyree Dayeian (Chief Financial Officer), Mitchell Owens (Chief Information Officer) and other senior executives.
    How many executives does Gilbert + Tobin have?
    Gilbert + Tobin has 4 executives leading key business areas.
    What roles are included in Gilbert + Tobin’s leadership team?
    The leadership team of Gilbert + Tobin includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Information Officer, Chief People Officer.