Relativity Executive and Leadership Team

August, 2026

Leadership Overview

Relativity has 4 executives leading key functions including revenue strategy, organizational operations, supply chain logistics, and manufacturing technology.

Driven by a commitment to iterative aerospace innovation, Relativity revolutionizes the path from design to flight by manufacturing cost-effective, high-performance, and reusable rockets for the global launch market.

Leadership Roles at Relativity

  • President, Horizon Manufacturing Technologies - Quan Lac
  • Chief Revenue Officer - Joshua Brost
  • Chief of Staff - Emma Alexander
  • Vehicle Manufacturing & Supply Chain Chief of Staff - Arwa Tizani
  • Quan Lac - President, Horizon Manufacturing Technologies

    Quan Lac, the President, Horizon Manufacturing Technologies at Relativity, architects the advanced 3D printing systems that define the company's unique approach to rocket production. Overseeing the development of proprietary manufacturing hardware, the President, Horizon Manufacturing Technologies ensures that the firm maintains a technological edge in the aerospace industry. This leadership role involves directing the research and development of large-scale additive manufacturing platforms capable of producing high-performance rocket structures. By pushing the boundaries of what is possible in aerospace fabrication, Quan Lac directly impacts the company's ability to deliver reusable launch vehicles at scale. Lac drives innovation by integrating cutting-edge software and robotics into the manufacturing process to enhance precision and reduce waste. Through the continuous improvement of production technologies, the President, Horizon Manufacturing Technologies enables the company to maintain its market position as a leader in cost-effective, high-performance launch services for diverse customer requirements.

    Joshua Brost - Chief Revenue Officer

    Joshua Brost, the Chief Revenue Officer at Relativity, directs all commercial launch service agreements and customer acquisition strategies. Overseeing the expansion of the Terran R market presence, the Chief Revenue Officer ensures alignment between customer launch requirements and the company's 3D printing production capabilities. This leadership role involves managing complex negotiations with satellite operators and government agencies to secure long-term launch manifests. By optimizing the sales funnel and identifying emerging demand across North American and international markets, Joshua Brost directly impacts the company's financial growth. Brost secures competitive positioning for the firm by translating technical rocket performance metrics into tangible value propositions for clients. Through rigorous market analysis and strategic partnership development, the Chief Revenue Officer maintains a robust pipeline that supports the rapid scaling of launch operations and ensures the long-term viability of the reusable rocket business model.

    Emma Alexander - Chief of Staff

    Emma Alexander, the Chief of Staff at Relativity, coordinates cross-functional initiatives and streamlines executive decision-making processes. Overseeing the integration of internal workflows, the Chief of Staff ensures that organizational objectives remain synchronized with the rapid development cycles of the Terran R launch vehicle. This leadership role involves managing high-priority projects that span engineering, operations, and corporate strategy to maintain operational efficiency. By facilitating communication between the C-suite and department heads, Emma Alexander directly impacts the speed of the company's iterative development approach. Alexander drives organizational health by implementing systems that support the scaling of the workforce and the optimization of internal resources. Through the management of critical business rhythms and the execution of strategic directives, the Chief of Staff enables the leadership team to focus on the core mission of revolutionizing aerospace manufacturing through advanced 3D printing technology.

    Arwa Tizani - Vehicle Manufacturing & Supply Chain Chief of Staff

    Arwa Tizani, the Vehicle Manufacturing & Supply Chain Chief of Staff at Relativity, manages the complex logistics and material procurement required for 3D printed rocket production. Overseeing the supply chain architecture, the Vehicle Manufacturing & Supply Chain Chief of Staff ensures that raw materials and specialized components arrive in time to support the aggressive manufacturing schedule of the Terran R vehicle. This leadership role involves coordinating with engineering teams to refine production processes and reduce lead times for critical hardware. By optimizing the flow of materials from global suppliers to the manufacturing floor, Arwa Tizani directly impacts the cost-effectiveness of the company's launch services. Tizani drives operational excellence by identifying bottlenecks in the supply chain and implementing scalable solutions that accommodate the unique demands of 3D printing. Through rigorous oversight of manufacturing throughput, the Vehicle Manufacturing & Supply Chain Chief of Staff supports the company's ability to meet customer launch needs.

    Explore Leadership Teams in Aerospace & Defense

    Frequently Asked Questions Regarding Relativity Top Executives and Leadership Team

    Who leads Relativity?
    Relativity is led by Quan Lac (President, Horizon Manufacturing Technologies), along with executives such as Joshua Brost (Chief Revenue Officer) and Emma Alexander (Chief of Staff).
    Who is part of Relativity’s executive team?
    The executive team of Relativity includes leaders such as Quan Lac (President, Horizon Manufacturing Technologies), Joshua Brost (Chief Revenue Officer), Emma Alexander (Chief of Staff) and other senior executives.
    How many executives does Relativity have?
    Relativity has 4 executives leading key business areas.
    What roles are included in Relativity’s leadership team?
    The leadership team of Relativity includes roles such as President, Horizon Manufacturing Technologies, Chief Revenue Officer, Chief of Staff, Vehicle Manufacturing & Supply Chain Chief of Staff.