NorthStar Executive and Leadership Team

May, 2026

Leadership Overview

NorthStar has 10 executives leading key functions including strategy, finance, and operations.

Driven by a commitment to client resilience, NorthStar provides essential emergency preparedness and remediation services across diverse sectors, ensuring operational continuity during critical events.

Leadership Roles at NorthStar

  • Chief Executive Officer - Scott State
  • Co-Founder & Chief Executive Officer - Sebastian Scalera
  • Chief Executive Officer & President - Dan Lee
  • Chief Financial Officer - Kevin Shulko
  • President - George Lopez
  • President - Samuel Brown
  • President - Bill Donovan
  • President - Mark Medford
  • Branch President - Diana Thomson
  • President, Western Operations (US) - Bryan DiLoreto
  • Scott State - Chief Executive Officer

    Scott State, the Chief Executive Officer at NorthStar, directs the overarching corporate strategy and operational execution. This leadership role involves guiding the company's 29 years of experience in emergency preparedness and remediation services across retail, education, healthcare, manufacturing, hospitality, and industrial environments. State ensures that NorthStar's extensive national network of over 50 branch offices and 930 response locations effectively supports clients facing disasters. Overseeing the dispatch of teams ranging from 10 to thousands of employees, Scott State guarantees immediate and scalable response capabilities for incidents of any magnitude, from everyday issues to catastrophic events like hurricanes and acts of terrorism. The Chief Executive Officer's focus remains on maintaining the company's proven credentials and resolving complex client situations with expertise and resources.
    Scott State

    Sebastian Scalera - Co-Founder & Chief Executive Officer

    Sebastian Scalera, the Co-Founder & Chief Executive Officer at NorthStar, shapes the strategic vision and foundational principles of the organization. Scalera's leadership drives the company's mission to provide critical emergency preparedness and remediation services, leveraging over 29 years of industry experience. This role involves ensuring that NorthStar's extensive capabilities in hazardous material abatement, soil & mold remediation, demolition, and reconstruction are consistently applied across all 50 states. Sebastian Scalera oversees the integration of the national network of over 50 branch offices and 930 response locations, guaranteeing rapid deployment of resources. The Co-Founder & Chief Executive Officer's strategic direction ensures clients receive expert support for everyday incidents and catastrophic events, reinforcing NorthStar's commitment to client resilience and recovery.

    Dan Lee - Chief Executive Officer & President

    Dan Lee, the Chief Executive Officer & President at NorthStar, commands the strategic direction and operational oversight of the company. Lee's executive purview encompasses the delivery of comprehensive emergency preparedness and remediation services, drawing upon NorthStar's nearly three decades of specialized experience. This leadership position involves ensuring seamless coordination across the national network of over 50 branch offices and 930 response locations, facilitating immediate dispatch of response teams. Dan Lee's responsibilities include maintaining the highest standards in hazardous material abatement, demolition, and reconstruction services nationwide. The Chief Executive Officer & President's focus is on reinforcing NorthStar's capacity to effectively manage client recovery from diverse disasters, from biological and chemical incidents to catastrophic natural events.

    Kevin Shulko - Chief Financial Officer

    Kevin Shulko, the Chief Financial Officer at NorthStar, manages the company's financial health and strategic resource allocation. Shulko's oversight ensures that NorthStar maintains the financial stability required to support its extensive operations across all 50 states, including hazardous material abatement, demolition, and reconstruction services. This role is critical in funding the national network of over 50 branch offices and 930 response locations, enabling the immediate dispatch of large-scale response teams. Kevin Shulko directs financial planning, budgeting, and investment strategies that underpin NorthStar's capacity to respond to both routine incidents and catastrophic events. The Chief Financial Officer's fiscal management supports the company's ability to provide critical emergency preparedness and remediation services effectively and efficiently.
    Kevin Shulko

    George Lopez - President

    George Lopez, the President at NorthStar, drives operational excellence and strategic growth across key business segments. Lopez's leadership focuses on enhancing NorthStar's nearly 30 years of experience in emergency preparedness and remediation services, ensuring clients in retail, education, healthcare, and industrial sectors receive unparalleled support. This role involves overseeing the effective deployment of resources from the national network of over 50 branch offices and 930 response locations. George Lopez ensures that teams are equipped and ready to manage diverse situations, from hazardous material spills to recovery from catastrophic events. The President's commitment is to uphold NorthStar's reputation for expertise and reliability in resolving complex client challenges nationwide.

    Samuel Brown - President

    Samuel Brown, the President at NorthStar, directs strategic initiatives and operational performance across the organization. Brown's executive focus is on reinforcing NorthStar's extensive capabilities in emergency preparedness and remediation, ensuring clients receive expert services in hazardous material abatement, demolition, and reconstruction. This leadership position involves optimizing the utilization of the company's national network, comprising over 50 branch offices and 930 response locations, to guarantee swift and effective client support. Samuel Brown oversees the management of response teams, ensuring their readiness to address incidents ranging from minor spills to major catastrophic events. The President's dedication is to maintaining NorthStar's high standards of service and client recovery.

    Bill Donovan - President

    Bill Donovan, the President at NorthStar, spearheads the company's operational strategies and service delivery excellence. Donovan's leadership emphasizes NorthStar's nearly three decades of expertise in providing critical emergency preparedness and remediation services to diverse industries. This role involves ensuring the seamless coordination of response efforts from the national network of over 50 branch offices and 930 integrated U.S. response locations. Bill Donovan oversees the deployment of teams capable of managing any scale of emergency, from biological and chemical remediation to recovery from natural disasters. The President's focus is on upholding NorthStar's commitment to resolving client challenges with efficiency and proven credentials.

    Mark Medford - President

    Mark Medford, the President at NorthStar, drives the strategic execution and operational integrity of the company's service offerings. Medford's leadership reinforces NorthStar's extensive experience in emergency preparedness and remediation, ensuring clients across various sectors receive expert support. This position involves overseeing the effective deployment and management of resources from the national network of over 50 branch offices and 930 response locations. Mark Medford ensures that response teams are prepared to handle a wide spectrum of incidents, including hazardous material spills and recovery from catastrophic events. The President's objective is to maintain NorthStar's high standards for client recovery and operational resilience.
    Mark Medford

    Diana Thomson - Branch President

    Diana Thomson, the Branch President at NorthStar, directs regional operations and client engagement within specific geographic markets. Thomson's leadership focuses on implementing NorthStar's emergency preparedness and remediation strategies at a local level, ensuring adherence to the company's high standards. This role involves managing branch resources and personnel to provide timely and effective services, including hazardous material abatement and disaster recovery support. Diana Thomson oversees the coordination of response teams to address client needs efficiently. The Branch President's objective is to strengthen NorthStar's presence and service delivery within their designated operational areas, contributing to overall client satisfaction and resilience.

    Bryan DiLoreto - President, Western Operations (US)

    Bryan DiLoreto, the President, Western Operations (US) at NorthStar, leads and expands the company's service delivery across the western United States. DiLoreto's executive focus is on enhancing NorthStar's emergency preparedness and remediation capabilities within this key region, ensuring clients receive expert support for diverse challenges. This role involves optimizing the deployment of resources from the company's extensive network to address incidents ranging from hazardous material spills to recovery from major natural disasters. Bryan DiLoreto oversees regional teams, ensuring their readiness and effectiveness in executing demolition, abatement, and reconstruction services. The President, Western Operations (US)'s objective is to drive growth and maintain operational excellence throughout the western territories.

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    Frequently Asked Questions Regarding NorthStar Top Executives and Leadership Team

    Who leads NorthStar?
    NorthStar is led by Scott State (Chief Executive Officer), along with executives such as Sebastian Scalera (Co-Founder & Chief Executive Officer) and Dan Lee (Chief Executive Officer & President).
    Who is part of NorthStar’s executive team?
    The executive team of NorthStar includes leaders such as Scott State (Chief Executive Officer), Sebastian Scalera (Co-Founder & Chief Executive Officer), Dan Lee (Chief Executive Officer & President) and other senior executives.
    How many executives does NorthStar have?
    NorthStar has 10 executives leading key business areas.
    What roles are included in NorthStar’s leadership team?
    The leadership team of NorthStar includes roles such as Chief Executive Officer, Co-Founder & Chief Executive Officer, Chief Executive Officer & President, Chief Financial Officer, President.