Cactus Executive and Leadership Team

May, 2026

Leadership Overview

Cactus has 7 executives leading key functions including strategy, finance, operations, staff, technology, life sciences, and co-founding.

Driven by innovation, Cactus provides essential communication solutions, focusing on academic, scientific, and medical fields to advance global knowledge and research.

Leadership Roles at Cactus

  • Chief Executive Officer - Paul Xu
  • Chief Financial Officer - Ariel Wu
  • Chief Operating Officer - Luis Zhou
  • President, Cactus Life Sciences - Elvira Dsouza
  • President & Co-Founder - Edward Shi
  • Chief of Staff - Hilman Mehta
  • Technology Chief of Staff - Dimple Ranpara
  • Paul Xu - Chief Executive Officer

    Paul Xu, the Chief Executive Officer at Cactus, directs the company's overarching strategy and global operations. Xu guides the executive team in executing the mission of providing advanced communication solutions for academic and scientific communities. This leadership involves fostering innovation within the editing and medical communications divisions, ensuring alignment with market demands and client needs. Xu's focus remains on driving sustainable growth and expanding Cactus's influence in the global research landscape. The Chief Executive Officer role demands a keen understanding of the evolving needs of researchers and institutions worldwide, ensuring Cactus remains at the forefront of communication services. Paul Xu's strategic vision shapes the company's direction, prioritizing client success and scientific advancement.

    Ariel Wu - Chief Financial Officer

    Ariel Wu, the Chief Financial Officer at Cactus, manages all financial aspects of the organization. Wu oversees budgeting, financial planning, and risk management, ensuring the company's fiscal health and stability. This role is critical in supporting Cactus's expansion initiatives and operational efficiency across its editing and medical communications services. The Chief Financial Officer ensures robust financial controls are in place, providing strategic financial insights to the executive team. Wu's responsibilities include optimizing resource allocation to support research and development efforts and maintaining strong relationships with financial stakeholders. Ariel Wu's expertise underpins the company's ability to invest in new technologies and services, driving long-term value for clients and the organization.

    Luis Zhou - Chief Operating Officer

    Luis Zhou, the Chief Operating Officer at Cactus, oversees the day-to-day operational execution of the company's communication solutions. Zhou manages the integration of services across academic editing, scientific editing, and medical communications, ensuring seamless delivery and high-quality output. This leadership position involves optimizing workflows, enhancing operational efficiency, and managing global teams to meet client demands. The Chief Operating Officer plays a vital part in scaling operations to support Cactus's growth trajectory. Luis Zhou's commitment to operational excellence ensures that the company consistently delivers on its promises to the scientific and academic sectors. Zhou drives process improvements that enhance service delivery and client satisfaction.

    Elvira Dsouza - President, Cactus Life Sciences

    Elvira Dsouza, the President, Cactus Life Sciences at Cactus, leads the strategic direction and operational management of the company's life sciences division. Dsouza focuses on delivering specialized editing and communication services tailored to the pharmaceutical, biotechnology, and healthcare sectors. This leadership role involves driving growth, fostering client relationships, and ensuring the highest standards of scientific accuracy and communication quality. The President, Cactus Life Sciences oversees a dedicated team of experts committed to advancing medical research and communication. Elvira Dsouza's deep industry knowledge guides the development of innovative solutions for life science professionals globally. Dsouza ensures the division meets the evolving needs of the scientific community.
    Elvira Dsouza

    Edward Shi - President & Co-Founder

    Edward Shi, the President & Co-Founder at Cactus, provides foundational leadership and strategic vision for the company. Shi contributes to the company's long-term direction, focusing on innovation and market expansion within the communication solutions sector. This role involves guiding the development of services that support academic and scientific endeavors worldwide. The President & Co-Founder works closely with the executive team to uphold the company's mission and values. Edward Shi's entrepreneurial spirit drives the continuous evolution of Cactus's offerings, ensuring relevance and impact in a dynamic global market. Shi's involvement ensures the company remains committed to its founding principles.

    Hilman Mehta - Chief of Staff

    Hilman Mehta, the Chief of Staff at Cactus, acts as a strategic partner to the Chief Executive Officer, facilitating the execution of key initiatives. Mehta coordinates cross-functional projects, manages executive communications, and ensures strategic priorities are translated into actionable plans across the organization. This role involves streamlining operations and enhancing collaboration between departments, including academic and medical communications. The Chief of Staff supports the CEO in driving organizational effectiveness and managing stakeholder relationships. Hilman Mehta's contributions are essential in maintaining strategic alignment and operational momentum throughout Cactus. Mehta ensures that executive decisions are effectively implemented across all business units.

    Dimple Ranpara - Technology Chief of Staff

    Dimple Ranpara, the Technology Chief of Staff at Cactus, bridges the gap between technology strategy and operational execution. Ranpara supports the Chief Technology Officer and executive leadership in implementing technology roadmaps that enhance communication solutions. This involves overseeing the integration of new platforms and tools across editing and medical communications services. The Technology Chief of Staff ensures that technological advancements align with business objectives and client needs. Dimple Ranpara's role is crucial in driving digital transformation and maintaining Cactus's technological edge in the market. Ranpara facilitates efficient adoption of new technologies across all departments.

    Frequently Asked Questions Regarding Cactus Top Executives and Leadership Team

    Who leads Cactus?
    Cactus is led by Paul Xu (Chief Executive Officer), along with executives such as Ariel Wu (Chief Financial Officer) and Luis Zhou (Chief Operating Officer).
    Who is part of Cactus’s executive team?
    The executive team of Cactus includes leaders such as Paul Xu (Chief Executive Officer), Ariel Wu (Chief Financial Officer), Luis Zhou (Chief Operating Officer) and other senior executives.
    How many executives does Cactus have?
    Cactus has 7 executives leading key business areas.
    What roles are included in Cactus’s leadership team?
    The leadership team of Cactus includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, President, Cactus Life Sciences, President & Co-Founder.