Dialog Group Berhad Executive and Leadership Team

June, 2026

Leadership Overview

Dialog Group Berhad has 4 executives leading key functions including strategy, terminals operations, finance, and business development.

Driven by a commitment to excellence, Dialog Group Berhad provides essential technical services across the oil, gas, and petrochemical value chain, shaping the industry's future through strategic leadership and operational expertise.

Leadership Roles at Dialog Group Berhad

  • Chief Executive Officer - Mark De
  • Chief Executive Officer, Terminals Business - Seow Teo
  • Group Chief Financial Officer - Zainab Mohd Salleh
  • President & Partner - Valerie Hausladen
  • Mark De - Chief Executive Officer

    Mark De, the Chief Executive Officer at Dialog Group Berhad, directs the overarching corporate strategy and operational framework. Overseeing all business units, Mark De ensures alignment with the company's mission to deliver technical services to the upstream, midstream, and downstream sectors of the oil, gas, and petrochemical industry. This leadership position involves driving innovation and efficiency across the organization, fostering a culture of continuous improvement. Mark De's strategic vision guides the company's expansion and market positioning within Malaysia and beyond. The Chief Executive Officer's responsibilities include managing key stakeholder relationships and ensuring the long-term financial health and sustainability of Dialog Group Berhad. By setting clear objectives and performance benchmarks, Mark De propels the company's growth and reinforces its standing as a leader in the energy services sector.

    Seow Teo - Chief Executive Officer, Terminals Business

    Seow Teo, the Chief Executive Officer, Terminals Business at Dialog Group Berhad, spearheads the strategic development and operational execution of the company's terminals division. This critical role involves managing the infrastructure and logistics supporting the midstream and downstream segments of the oil, gas, and petrochemical industry. Seow Teo ensures the efficient and safe handling of products, optimizing throughput and storage capacity to meet market demands. The Chief Executive Officer, Terminals Business drives initiatives to enhance terminal services, focusing on reliability and cost-effectiveness for clients. Seow Teo's leadership ensures seamless integration with other business operations, contributing significantly to Dialog Group Berhad's comprehensive service offering. By overseeing capital projects and operational upgrades, Seow Teo strengthens the company's competitive advantage in the Malaysian energy services landscape.

    Zainab Mohd Salleh - Group Chief Financial Officer

    Zainab Mohd Salleh, the Group Chief Financial Officer at Dialog Group Berhad, manages the comprehensive financial operations and strategic fiscal planning for the entire organization. This executive function encompasses budgeting, forecasting, financial reporting, and capital allocation across all sectors of the oil, gas, and petrochemical industry. Zainab Mohd Salleh ensures robust financial controls and compliance with regulatory requirements, safeguarding the company's assets and profitability. The Group Chief Financial Officer plays a pivotal role in securing funding for expansion projects and optimizing the company's capital structure. Zainab Mohd Salleh's financial acumen supports strategic decision-making, driving sustainable growth and enhancing shareholder value. By meticulously analyzing financial performance and market trends, Zainab Mohd Salleh provides critical insights that inform Dialog Group Berhad's long-term business objectives.

    Valerie Hausladen - President & Partner

    Valerie Hausladen, the President & Partner at Dialog Group Berhad, drives strategic partnerships and business development initiatives across the energy services sector. This leadership role focuses on expanding Dialog Group Berhad's market reach and forging key alliances within the upstream, midstream, and downstream oil, gas, and petrochemical industries. Valerie Hausladen cultivates relationships with clients and industry stakeholders, identifying new opportunities for growth and collaboration. The President & Partner's responsibilities include overseeing major client engagements and ensuring the delivery of high-value technical services. Valerie Hausladen's strategic foresight and business acumen are instrumental in navigating complex market dynamics and securing competitive advantages for the company. By championing innovative solutions and client-centric approaches, Valerie Hausladen significantly contributes to Dialog Group Berhad's sustained success and industry leadership.

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    Frequently Asked Questions Regarding Dialog Group Berhad Top Executives and Leadership Team

    Who leads Dialog Group Berhad?
    Dialog Group Berhad is led by Mark De (Chief Executive Officer), along with executives such as Seow Teo (Chief Executive Officer, Terminals Business) and Zainab Mohd Salleh (Group Chief Financial Officer).
    Who is part of Dialog Group Berhad’s executive team?
    The executive team of Dialog Group Berhad includes leaders such as Mark De (Chief Executive Officer), Seow Teo (Chief Executive Officer, Terminals Business), Zainab Mohd Salleh (Group Chief Financial Officer) and other senior executives.
    How many executives does Dialog Group Berhad have?
    Dialog Group Berhad has 4 executives leading key business areas.
    What roles are included in Dialog Group Berhad’s leadership team?
    The leadership team of Dialog Group Berhad includes roles such as Chief Executive Officer, Chief Executive Officer, Terminals Business, Group Chief Financial Officer, President & Partner.