Grimaldi's Coal Brick Oven Pizzeria Executive and Leadership Team

June, 2026

Leadership Overview

Grimaldi's Coal Brick Oven Pizzeria has 4 executives leading key functions including strategy, operations, finance, and human resources.

Dedicated to delivering authentic New York-style pizza, Grimaldi's Coal Brick Oven Pizzeria upholds a leadership philosophy centered on quality, customer experience, and operational excellence, solidifying its market presence since its 1990 establishment.

Leadership Roles at Grimaldi's Coal Brick Oven Pizzeria

  • Chief Executive Officer - Joseph Ciolli
  • Chief Financial Officer - Jack Harthun
  • Chief Operating Officer - Michael Flaum
  • Chief People Officer - Danny Breitegan
  • Joseph Ciolli - Chief Executive Officer

    Joseph Ciolli, the Chief Executive Officer at Grimaldi's Coal Brick Oven Pizzeria, directs the overarching corporate strategy and long-term vision for the American pizzeria chain. Overseeing all facets of the business, Joseph Ciolli ensures alignment with the company's mission of delivering authentic New York-style pizza across its United States locations. This leadership role involves driving growth initiatives, identifying new market opportunities, and maintaining the brand's reputation for quality and exceptional dining experiences. By fostering a culture of excellence, Joseph Ciolli guides the executive team in optimizing operational efficiency and enhancing customer satisfaction. The Chief Executive Officer's strategic decisions directly impact the company's financial performance and its continued expansion within the competitive hospitality sector. This executive's focus remains on strengthening Grimaldi's market position through innovative approaches to menu development and service delivery, ensuring sustained success for the brand.

    Jack Harthun - Chief Financial Officer

    Jack Harthun, the Chief Financial Officer at Grimaldi's Coal Brick Oven Pizzeria, directs all financial planning, accounting, and reporting activities for the organization. Overseeing the fiscal health of the company, Jack Harthun manages budgeting, forecasting, and financial analysis to support strategic decision-making and ensure profitability. This critical role involves optimizing financial performance, managing capital expenditures, and securing funding for growth initiatives across the United States. By maintaining rigorous financial controls, Jack Harthun safeguards the company's assets and enhances its overall economic stability. The Chief Financial Officer's expertise is vital in navigating the complexities of the restaurant industry, ensuring compliance with financial regulations and driving sustainable revenue growth. Jack Harthun's strategic financial oversight is fundamental to Grimaldi's continued success and expansion in the competitive hospitality market.

    Michael Flaum - Chief Operating Officer

    Michael Flaum, the Chief Operating Officer at Grimaldi's Coal Brick Oven Pizzeria, manages the day-to-day operational execution across all restaurant locations. Overseeing the critical functions of service delivery and kitchen management, Michael Flaum ensures adherence to Grimaldi's high standards for food quality and preparation, particularly its signature coal brick oven pizzas. This role involves optimizing supply chain logistics, implementing efficient operational procedures, and driving performance improvements throughout the restaurant network. By focusing on operational excellence, Michael Flaum supports the company's expansion efforts and maintains consistent brand experience for patrons nationwide. The Chief Operating Officer's responsibilities extend to staff training and development, ensuring a skilled workforce capable of delivering exceptional customer service. Michael Flaum's leadership directly contributes to the seamless functioning of each establishment, reinforcing Grimaldi's commitment to authenticity and customer satisfaction in the hospitality industry.

    Danny Breitegan - Chief People Officer

    Danny Breitegan, the Chief People Officer at Grimaldi's Coal Brick Oven Pizzeria, leads all human resources functions, focusing on talent acquisition, employee development, and fostering a positive workplace culture. Overseeing the strategic management of the company's workforce, Danny Breitegan ensures that Grimaldi's attracts, retains, and develops the skilled personnel necessary to deliver exceptional dining experiences. This role involves designing and implementing HR policies, managing compensation and benefits, and championing employee engagement initiatives across all restaurant locations. By prioritizing people operations, Danny Breitegan contributes directly to operational efficiency and brand consistency. The Chief People Officer's commitment to employee well-being and professional growth is integral to maintaining Grimaldi's reputation as a premier employer and a beloved pizzeria chain. Danny Breitegan's leadership cultivates a supportive environment essential for the company's sustained success and expansion.

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    Frequently Asked Questions Regarding Grimaldi's Coal Brick Oven Pizzeria Top Executives and Leadership Team

    Who leads Grimaldi's Coal Brick Oven Pizzeria?
    Grimaldi's Coal Brick Oven Pizzeria is led by Joseph Ciolli (Chief Executive Officer), along with executives such as Jack Harthun (Chief Financial Officer) and Michael Flaum (Chief Operating Officer).
    Who is part of Grimaldi's Coal Brick Oven Pizzeria’s executive team?
    The executive team of Grimaldi's Coal Brick Oven Pizzeria includes leaders such as Joseph Ciolli (Chief Executive Officer), Jack Harthun (Chief Financial Officer), Michael Flaum (Chief Operating Officer) and other senior executives.
    How many executives does Grimaldi's Coal Brick Oven Pizzeria have?
    Grimaldi's Coal Brick Oven Pizzeria has 4 executives leading key business areas.
    What roles are included in Grimaldi's Coal Brick Oven Pizzeria’s leadership team?
    The leadership team of Grimaldi's Coal Brick Oven Pizzeria includes roles such as Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief People Officer.