Trusted Leadership in Construction Management
Oakland-based construction management and development consulting firm delivering expert oversight on projects from $1M to over $1B.
Built on Experience, Driven by Purpose
R Sinclair Group, LLC was founded with a clear mission: to bring the highest level of construction management expertise to projects that matter. Based in Oakland, California, our firm represents the convergence of decades of hands-on project management experience with a deep commitment to community impact.
Our leadership team has managed some of the most complex construction projects in the Bay Area and beyond—from major airport modernizations and highway infrastructure to large-scale residential developments and public facilities. This breadth of experience enables us to navigate the unique challenges of every project type with confidence and precision.
What sets us apart is not just our technical capability, but our unwavering commitment to integrity, transparent communication, and building projects that strengthen the communities where they stand.
Our Mission
To deliver exceptional construction management services that ensure every project is completed on time, within budget, and to the highest quality standards—while creating lasting positive impact in the communities we serve.
Our Vision
To be the most trusted construction management partner in the Western United States, recognized for our expertise, integrity, and commitment to building projects that elevate communities and create opportunities for all.
Meet Our Team
Veteran project managers with decades of combined experience in complex construction management.
Marvin Ross
Managing Partner
A veteran project manager with an extensive track record managing complex, high-value construction projects across infrastructure, transportation, and residential development. Marvin brings a disciplined, results-driven approach to every engagement, with deep expertise in stakeholder coordination, risk management, and community-focused development.
Partner announcement coming soon
Partner
Managing Partner
Details about our second managing partner will be announced soon. Together, our leadership team brings complementary expertise and a shared commitment to delivering excellence in construction management.
What Guides Us
Precision
Every detail matters. We deliver meticulous oversight ensuring nothing falls through the cracks.
Integrity
Transparent communication, honest assessments, and ethical practices in every engagement.
Community
Building projects that strengthen neighborhoods through local hiring and workforce development.
Excellence
Holding ourselves and our partners to the highest standards of quality and performance.
Ready to Work Together?
Let's discuss how our experience and commitment can drive your next project to success.
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