Stream Executive and Leadership Team

June, 2026

Leadership Overview

Stream has 6 executives leading key functions including strategy, operations, finance, human resources, and people management.

Driven by a commitment to excellence, Stream Realty Partners operates as a commercial real estate services company, specializing in leasing, property management, tenant representation, development, investment, and sustainability, impacting markets across North America.

Leadership Roles at Stream

  • President & Chief Executive Officer - Christopher Jackson
  • Chief Financial Officer - Ariella Middlebrook
  • Chief Operating Officer - Blake Kendrick
  • President - Shannan Hoover
  • Chief Human Resources Officer - Kathryn Lengyel
  • Chief People Officer (Interim) - Sam Dwinell
  • Christopher Jackson - President & Chief Executive Officer

    Christopher Jackson, the President & Chief Executive Officer at Stream, directs the company's overall strategic vision and operational execution. Overseeing all facets of the commercial real estate services firm, Jackson ensures alignment with the core mission of delivering exceptional leasing, property management, tenant representation, development, investment, and sustainability solutions. This leadership role involves guiding the executive team to foster innovation and maintain Stream's market-leading position. By driving growth initiatives and optimizing business processes, Christopher Jackson directly impacts the firm's expansion and financial performance across its diverse service offerings. The President & Chief Executive Officer's focus remains on enhancing client value and solidifying Stream's reputation for excellence in the real estate sector.
    Christopher Jackson

    Ariella Middlebrook - Chief Financial Officer

    Ariella Middlebrook, the Chief Financial Officer at Stream, oversees all financial aspects of the company, including accounting, financial planning, and investment strategy. Managing the firm's capital structure and financial reporting, Middlebrook ensures fiscal responsibility and supports strategic growth initiatives. This position involves analyzing market trends and financial performance to guide investment decisions and optimize profitability. By maintaining robust financial controls and fostering strong relationships with financial partners, Ariella Middlebrook directly enhances Stream's financial stability and capacity for expansion. The Chief Financial Officer's expertise is critical in navigating the complexities of the commercial real estate market and maximizing shareholder value.
    Ariella Middlebrook

    Blake Kendrick - Chief Operating Officer

    Blake Kendrick, the Chief Operating Officer at Stream, manages the day-to-day operational activities and ensures the efficient delivery of services across the organization. Overseeing property and facilities management, leasing operations, and development projects, Kendrick drives operational excellence and process improvement. This role involves coordinating cross-functional teams to achieve strategic objectives and maintain high standards of service delivery. By optimizing resource allocation and implementing best practices, Blake Kendrick directly contributes to Stream's ability to execute complex real estate transactions and manage extensive property portfolios. The Chief Operating Officer's dedication to operational efficiency underpins the firm's capacity for sustained growth and client satisfaction.
    Blake Kendrick

    Shannan Hoover - President

    Shannan Hoover, the President at Stream, drives strategic initiatives and operational oversight for key business segments. Focusing on enhancing client services and expanding market reach, Hoover collaborates with executive leadership to refine service delivery models for leasing, property management, and tenant representation. This leadership position involves championing innovation and ensuring operational alignment with the company's growth objectives. By fostering strong client relationships and identifying new business opportunities, Shannan Hoover directly supports Stream's market expansion and revenue generation. The President's commitment to excellence reinforces the firm's position as a leader in commercial real estate services.

    Kathryn Lengyel - Chief Human Resources Officer

    Kathryn Lengyel, the Chief Human Resources Officer at Stream, leads all human capital strategies and organizational development initiatives. Overseeing talent acquisition, employee relations, compensation, and benefits, Lengyel cultivates a high-performance culture aligned with Stream's business objectives. This role involves developing programs to attract, retain, and develop top talent within the competitive commercial real estate landscape. By ensuring a supportive and engaging work environment, Kathryn Lengyel directly contributes to employee satisfaction and overall organizational effectiveness. The Chief Human Resources Officer's focus on people empowers the firm's teams to deliver exceptional service and drive innovation across all service lines.
    Kathryn Lengyel

    Sam Dwinell - Chief People Officer (Interim)

    Sam Dwinell, the Chief People Officer (Interim) at Stream, guides the company's human capital strategy during a transitional period. Overseeing talent management, organizational culture, and employee engagement initiatives, Dwinell ensures continuity and strategic alignment of people operations. This role involves supporting the executive team in attracting and retaining skilled professionals essential for Stream's commercial real estate services. By implementing effective HR policies and fostering a positive work environment, Sam Dwinell directly contributes to the firm's operational stability and employee development. The Chief People Officer (Interim)'s focus is on maintaining a strong workforce to support Stream's ongoing success.

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    Frequently Asked Questions Regarding Stream Top Executives and Leadership Team

    Who leads Stream?
    Stream is led by Christopher Jackson (President & Chief Executive Officer), along with executives such as Ariella Middlebrook (Chief Financial Officer) and Blake Kendrick (Chief Operating Officer).
    Who is part of Stream’s executive team?
    The executive team of Stream includes leaders such as Christopher Jackson (President & Chief Executive Officer), Ariella Middlebrook (Chief Financial Officer), Blake Kendrick (Chief Operating Officer) and other senior executives.
    How many executives does Stream have?
    Stream has 6 executives leading key business areas.
    What roles are included in Stream’s leadership team?
    The leadership team of Stream includes roles such as President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, President, Chief Human Resources Officer.