About Us

Our Mission

At Manatus Development Partners, we are dedicated to transforming communities through strategic, mission-driven real estate development. As a vertically integrated owner, operator, and developer, we specialize in projects that deliver long-term social and economic value across New York City’s five boroughs, ensuring that essential community services thrive in the places that need them most.

Since our founding in 2003 by Justin Stern, we have been steadfast in our commitment to partnering with not-for-profit organizations, impact investors, and mission-driven institutions to create high-quality, purpose-built spaces that empower underserved communities. Our expertise spans community facilities, including schools, healthcare centers, administrative offices, religious institutions, supermarkets, and affordable housing—critical infrastructure that enhances quality of life and economic opportunity.

Through adaptive reuse and ground-up development, we embrace a sustainable, thoughtful, and impact-driven approach that fosters inclusion, resilience, and long-term neighborhood growth. At Manatus, we believe real estate is more than just physical structures—it is a catalyst for social change and economic empowerment.

We are actively seeking collaborations with like-minded organizations, institutional investors, and public-private partners who share our vision for equitable, community-focused development. Whether you are a nonprofit seeking expansion, a public entity with an urgent infrastructure need, or an investor looking to make a measurable impact, we welcome the opportunity to co-create transformative projects that leave a lasting legacy.

Let’s build stronger communities together—one impactful project at a time.

Meet Our Team

Justin Stern

Founder, Managing Member

Matt Greely

Associate, Acquisitions and Development

Steven Dobbs

Sr. Vice President of Construction

Alexander Sanchez, P.E.

Project Manager, Construction

Gary Spindler

Gary Spindler

Partner

Mission-Driven Development. Impact-Focused Investing