Marina St. Cyr Biography
Marina St. Cyr
Boad Member
Boad Member
Professional Background
Marina St. Cyr is a Partner and Senior Vice President of Operations for a privately held group of companies headquartered in Rancho Cucamonga, California, including Access Partners, Marquee Products, Day Creek Sourcing and Logistics, and My Supply. She has spent more than twenty years building financial, operational, and governance functions for growing businesses, with oversight of accounting and finance, human resources, legal, and sales operations across the portfolio. Her background includes more than ten merger and acquisition transactions, supporting companies ranging from one million to five hundred million dollars in annual revenue. Marina is also a partner in several commercial real estate holdings including commercial property in Rancho Cucamonga and a warehouse facility in Bloomington.
Local Business and Community Roots
Marina has lived in Rancho Cucamonga for 28 years and raised her four children in the city. The companies she leads are headquartered there, and her real estate holdings sit within the Chaffey College service area, including Rancho Cucamonga and Bloomington. Her career has been built primarily inside operating businesses rather than civic organizations, and she views a seat on the Foundation Board as the starting point for a more formal role in the community where she has spent nearly three decades. She does not bring an existing donor network to this role. She brings financial literacy, merger and acquisition experience, and a genuine willingness to build relationships with local businesses on the Foundation's behalf.
Board and Governance Experience
Marina has served since 2025 on the board of UC Academy in Rancho Cucamonga, California, a private K-12 school with more than 900 students, where she sits on the governance committee. In this role, she has coordinated with the board and its parent organization on a new ownership structure, reviewed annual budgets, and assisted the superintendent with hiring decisions for key executive and administrative positions.
Education and the Community College Pathway
Marina began her higher education at a California community college before transferring to the University of Southern California, where she earned a Bachelor of Science in Business Administration. She views the community college pathway as a route to four-year degrees and economic mobility, particularly for first-generation and underserved students, and her own transfer experience informs this directly. Through the companies she has led, Marina supported a scholarship fund for students at California State Polytechnic University, Pomona through 2023, took part in mentoring sessions for women pursuing careers in sales, and helped provide internship opportunities for students entering the business workforce.
Career Chronology
From 1997 to 2007, Marina paused full-time corporate work to raise her four children, maintaining part-time real estate activity and building leadership training curricula for volunteer-led youth programs.
Marina St. Cyr is a Partner and Senior Vice President of Operations for a privately held group of companies headquartered in Rancho Cucamonga, California, including Access Partners, Marquee Products, Day Creek Sourcing and Logistics, and My Supply. She has spent more than twenty years building financial, operational, and governance functions for growing businesses, with oversight of accounting and finance, human resources, legal, and sales operations across the portfolio. Her background includes more than ten merger and acquisition transactions, supporting companies ranging from one million to five hundred million dollars in annual revenue. Marina is also a partner in several commercial real estate holdings including commercial property in Rancho Cucamonga and a warehouse facility in Bloomington.
Local Business and Community Roots
Marina has lived in Rancho Cucamonga for 28 years and raised her four children in the city. The companies she leads are headquartered there, and her real estate holdings sit within the Chaffey College service area, including Rancho Cucamonga and Bloomington. Her career has been built primarily inside operating businesses rather than civic organizations, and she views a seat on the Foundation Board as the starting point for a more formal role in the community where she has spent nearly three decades. She does not bring an existing donor network to this role. She brings financial literacy, merger and acquisition experience, and a genuine willingness to build relationships with local businesses on the Foundation's behalf.
Board and Governance Experience
Marina has served since 2025 on the board of UC Academy in Rancho Cucamonga, California, a private K-12 school with more than 900 students, where she sits on the governance committee. In this role, she has coordinated with the board and its parent organization on a new ownership structure, reviewed annual budgets, and assisted the superintendent with hiring decisions for key executive and administrative positions.
Education and the Community College Pathway
Marina began her higher education at a California community college before transferring to the University of Southern California, where she earned a Bachelor of Science in Business Administration. She views the community college pathway as a route to four-year degrees and economic mobility, particularly for first-generation and underserved students, and her own transfer experience informs this directly. Through the companies she has led, Marina supported a scholarship fund for students at California State Polytechnic University, Pomona through 2023, took part in mentoring sessions for women pursuing careers in sales, and helped provide internship opportunities for students entering the business workforce.
Career Chronology
From 1997 to 2007, Marina paused full-time corporate work to raise her four children, maintaining part-time real estate activity and building leadership training curricula for volunteer-led youth programs.
- Access Partners, Partner and Senior Vice President of Operations, 2019 to present
- Sterno Products, Director of Sales Operations, 2007 to 2018
- Prentiss Properties, Commercial Portfolio Manager, 1994 to 1997
