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SJSM Group builds, operates, and governs specialized business units across civic policy, maritime infrastructure, tactical logistics, and commercial real estate stewardship.
Discipline
Discipline
We maintain strict operational standards and strong leadership to ensure reliable execution and lasting stability.
Partnerships
Partnerships
We cultivate strategic alliances across public and private sectors to drive collaborative growth and shared values.
Speed (Primero)
Speed (Primero)
We act with decisive urgency - prioritizing fast, proactive, execution to capture opportunities without compromising quality.
About SJSM Group
About SJSM Group
SJSM Group is the parent company of a portfolio of specialized business units. Built on military discipline and precision, we deliver critical work for our public and private sector partners.
We combine centralized leadership with independent teams—giving each business unit the freedom to focus on its trade while backed by shared resources and high standards.
Leadership
Leadership
Felix Michael Ceballos, AICP
Felix Michael Ceballos, AICP
Founder & Managing Partner
Felix is an AICP-certified urban planner and executive leader across urban development, asset management, and tactical operations with distinguished experience across public, private, and military spheres. His track record includes directing asset management for the 8.5 million-square-foot PortNYC portfolio, serving as a lead project manager executing the $380 million NYC Ferry expansion at NYCEDC, and overseeing capital projects and facilities operations across 59 schools for Success Academies. With military experience spanning logistics, marine safety, and incident management, he holds an MPA in Urban Development & Sustainability from Baruch College, advanced graduate certificates in Real Estate Development and Finance from Fordham University, and dual bachelor's degrees from Stony Brook University.
Karen A. Mendez, LMSW
Karen A. Mendez, LMSW
Founder & Managing Partner
Karen is an accomplished operations and social work professional with more than fifteen years of comprehensive experience in program management, event logistics, and real estate operations. She possesses specialized expertise in optimizing administrative workflows, overseeing multidisciplinary initiatives, and cultivating strategic community partnerships, with a distinguished career encompassing financial aid leadership at The New School, event management at Smithbucklin, and clinical practice at the Jewish Child Care Association alongside directing property portfolio management for SJSM Group. Karen holds an MS in Non-Profit Management from The New School, an MSW from Hunter College, and a BSW from Stony Brook University, maintaining active New York State LMSW licensure and certification as a Tax Credit Specialist.OPERATING BUSINESS UNITS
THE PRIMERO BRANDS
THE PRIMERO BRANDS
Four specialized divisions united under the heraldic "1P" mark—symbolizing first-mover speed, structural durability, and disciplined execution.
Division 01 • Policy
Primero Civic Advisors
Primero Civic Advisors
"Guiding Policy. Shaping Communities."
Public policy advisory, municipal master planning, and public-private partnership (P3) governance for regional agencies.
Division 02 • Maritime
Primero Port Strategies
Primero Port Strategies
"Navigating Infrastructure. Anchoring Growth."
Waterfront master planning, maritime operations optimization, and coastal intermodal logistics integration.
Division 03 • Tactical Ops
Semper Primero Logistics
Semper Primero Logistics
"Always First. Mission Ready."
Tactical procurement, supply chain management, and freight transport.
Division 04 • Real Estate
Primero Management Partners
Primero Management Partners
"Standard Bearers in Stewardship."
Commercial and multi-family facilities oversight, preventative maintenance management, and real estate asset stewardship.
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