Definitive Healthcare Executive and Leadership Team

August, 2026

Leadership Overview

Definitive Healthcare has 6 executives leading key functions including marketing, financial strategy, technology development, commercial operations, human resources, and legal affairs.

Focused on delivering actionable intelligence for the healthcare ecosystem, Definitive Healthcare empowers organizations to navigate complex provider data landscapes through advanced software solutions and comprehensive market analytics.

Leadership Roles at Definitive Healthcare

  • Chief Financial Officer - Casey Heller
  • Chief Marketing Officer - Justin Steinman
  • Co-Founder & Chief Technology Officer - Nathan Salmon
  • Chief of Staff, Commercial - Karin Campbell
  • Chief Human Resources Officer - Jeannine Sheehan
  • Chief Legal Officer - Jonathan Paris
  • Casey Heller - Chief Financial Officer

    Casey Heller, the Chief Financial Officer at Definitive Healthcare, manages all fiscal operations and long-term financial planning. Overseeing capital allocation and investor relations, the Chief Financial Officer ensures the company maintains a robust balance sheet to support ongoing software innovation. This leadership role involves monitoring revenue streams from diverse sectors, including staffing, recruiting, and healthcare facilities. By implementing rigorous financial controls, Casey Heller secures the stability required for sustained market expansion. Heller also collaborates with the executive team to evaluate potential acquisitions and strategic investments that enhance the data platform. Through precise forecasting and risk management, the Chief Financial Officer provides the necessary oversight to sustain profitability. Ultimately, Heller drives the financial health of the organization, ensuring that resources align with the core mission of providing high-quality data on physicians and hospitals to a global client base.

    Justin Steinman - Chief Marketing Officer

    Justin Steinman, the Chief Marketing Officer at Definitive Healthcare, directs global brand positioning and demand generation strategies. Overseeing the alignment of product messaging with the needs of pharma, biotech, and medical device sectors, the Chief Marketing Officer ensures market penetration across North American and international territories. This leadership role involves architecting digital campaigns that highlight the value of healthcare provider data. By optimizing lead acquisition funnels, Justin Steinman directly impacts the company's growth trajectory. Furthermore, Steinman manages the integration of customer insights into the broader marketing roadmap, ensuring that the software platform remains the primary choice for financial services and consulting firms. Through rigorous analysis of market trends, the Chief Marketing Officer maintains a competitive edge, driving brand awareness and supporting the expansion of the client base within the complex healthcare technology landscape.
    Justin Steinman

    Nathan Salmon - Co-Founder & Chief Technology Officer

    Nathan Salmon, the Co-Founder & Chief Technology Officer at Definitive Healthcare, architects the technical infrastructure and software development lifecycle. Overseeing the engineering teams, the Co-Founder & Chief Technology Officer ensures the platform delivers accurate, real-time data on healthcare providers and IDNs. This leadership role involves driving innovation in data processing and cloud architecture to support the needs of the pharma and technology industries. By prioritizing scalable solutions, Nathan Salmon maintains the integrity and performance of the core software product. Salmon also works closely with product management to translate market requirements into technical specifications. Through the continuous refinement of data ingestion pipelines, the Co-Founder & Chief Technology Officer enables the company to provide unparalleled insights into the healthcare market. Ultimately, Salmon secures the technological foundation that allows the organization to remain at the forefront of the healthcare data analytics industry.

    Karin Campbell - Chief of Staff, Commercial

    Karin Campbell, the Chief of Staff, Commercial at Definitive Healthcare, coordinates cross-functional initiatives to optimize commercial performance. Overseeing the execution of strategic projects, the Chief of Staff, Commercial ensures that sales and service teams remain aligned with corporate objectives. This leadership role involves streamlining communication between departments to improve operational efficiency across the healthcare provider and consulting sectors. By facilitating high-level decision-making processes, Karin Campbell supports the rapid scaling of commercial operations. Campbell also manages key internal workflows that connect product development with market-facing activities. Through the implementation of performance metrics, the Chief of Staff, Commercial drives accountability and ensures that the organization meets its growth targets. Ultimately, Campbell fosters a cohesive environment where commercial strategies translate into tangible business outcomes, reinforcing the company's position as a leader in healthcare data intelligence.

    Jeannine Sheehan - Chief Human Resources Officer

    Jeannine Sheehan, the Chief Human Resources Officer at Definitive Healthcare, directs talent acquisition, organizational development, and employee engagement strategies. Overseeing the cultivation of a high-performance culture, the Chief Human Resources Officer ensures the company attracts top-tier professionals capable of advancing the software platform. This leadership role involves designing programs that support professional growth and retention across all departments, from engineering to sales. By fostering an inclusive work environment, Jeannine Sheehan drives the organizational agility required to compete in the healthcare data market. Sheehan also collaborates with the executive team to align human capital strategies with the company's long-term business goals. Through the implementation of robust performance management systems, the Chief Human Resources Officer ensures that the workforce remains focused on delivering value to clients. Ultimately, Sheehan secures the human infrastructure necessary for the company to maintain its status as an industry innovator.
    Jonathan Paris, the Chief Legal Officer at Definitive Healthcare, manages all legal affairs, regulatory compliance, and corporate governance. Overseeing the protection of intellectual property and data privacy standards, the Chief Legal Officer ensures the company adheres to the complex regulations governing healthcare information. This leadership role involves mitigating legal risks associated with the collection and distribution of data on physicians and healthcare providers. By providing strategic counsel to the board and executive team, Jonathan Paris supports the company's expansion into new markets and service areas. Paris also negotiates critical commercial contracts and partnerships that underpin the business model. Through the proactive management of legal challenges, the Chief Legal Officer maintains the integrity of the organization's operations. Ultimately, Paris secures the legal framework that allows the company to operate with confidence while delivering essential data services to the global healthcare industry.
    Jonathan Paris

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    Frequently Asked Questions Regarding Definitive Healthcare Top Executives and Leadership Team

    Who leads Definitive Healthcare?
    Definitive Healthcare is led by Casey Heller (Chief Financial Officer), along with executives such as Justin Steinman (Chief Marketing Officer) and Nathan Salmon (Co-Founder & Chief Technology Officer).
    Who is part of Definitive Healthcare’s executive team?
    The executive team of Definitive Healthcare includes leaders such as Casey Heller (Chief Financial Officer), Justin Steinman (Chief Marketing Officer), Nathan Salmon (Co-Founder & Chief Technology Officer) and other senior executives.
    How many executives does Definitive Healthcare have?
    Definitive Healthcare has 6 executives leading key business areas.
    What roles are included in Definitive Healthcare’s leadership team?
    The leadership team of Definitive Healthcare includes roles such as Chief Financial Officer, Chief Marketing Officer, Co-Founder & Chief Technology Officer, Chief of Staff, Commercial, Chief Human Resources Officer.