• (832) 823-5099 TX
  • (212) 353-3734 NY
  • info@casgroupllc.com

CAS Group®

City and Sea Group LLC (CAS Group) is a trusted engineering, urban planning, and program management firm providing services across the US and worldwide.

We deliver responsive solutions, strategic guidance, and proven tactics to successfully move complex projects from concept to completion.

  • Advisory Services
  • Planning & Engagement
  • Coastal & Marine
  • PM|CM
Technical and advisory services performed for LNG plant in Jacksonville, Florida
Advisory Services

We support investors by performing detailed, yet efficient due diligence of technical, operational, contractual, and management aspects of infrastructure and industrial investment opportunities. We focus on identifying and mitigating downside risks and enhancing upside potential.

  • Technical Support & Due Diligence
  • Site Screening & Selection
  • Feasibility Studies
  • Pre-FEED & FEED Services
  • EPC Services Procurement, Bidding, & Management
  • Risk Assessment & Mitigation

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Planning & Engagement

Engagement is more than participation and reaction. For us, it means building consensus and support. We want communities, stakeholders, and our clients to feel they have been heard through meaningful dialogue with a trusted partner.

  • Public & Stakeholder Engagement
  • Public Relations & Outreach
  • Event Planning & Management
  • Meeting Facilitation & Facilitator Training
  • Urban Planning

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Public and stakeholder engagement services for New York Rising program
Coastal studies
Coastal & Marine Engineering

Designing efficient, cost-effective, and resilient marine facilities and coastal structures including marine terminals and ports. Our global experience is valued by clients for our ability to understand local nuances and produce creative solutions.

  • Coastal & Environmental Modeling
  • Coastal & Waterfront Design
  • Ports & Terminals
  • Data Acquisition & Analysis
  • Water Quality & Numerical Modeling
  • Environmental Litigation

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Program Management /
Construction Management

We help clients successfully move critical infrastructure projects from concept to completion with our proven processes, people, and procedures.

  • Project & Program Management
  • Construction Management & Oversight
  • Claims Management
  • Contracts Management

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PM-CM Services for Salem Power Plant
Construction oversight using remote technology

The CAS Group® Difference

We are specialists with a holistic approach, global perspective, and an efficient team operating like the power of many. We cultivate collaboration on all our projects. Technically proficient and commercially-minded, we know what it takes to move a project from start to finish. It’s in our DNA to delight clients with smart solutions that go beyond what is expected.

  • We collaborate with clients to crystallize objectives
  • Elite professionals respond to clients' unique needs
  • Experienced, knowledgeable, & accountable experts
  • Robust documentation expected from large firms
  • Rigorous execution results is our strong reputation
About Us

Project Highlights

Since 2010, CAS Group® has been integral to the delivery of $2 billion worth of infrastructure and involved in the development of $4 billion more. No project is too big or too small. Visit our Project Portfolio here.

Jacksonville Florida LNG

Small-Scale LNG Facility

Owner's Advisor & Contracts Manager for implementation of first coastal small-scale LNG production facility with barge, road, & rail access.
Hudson River Coastal Engineering

Waterfront Park

Coastal engineering & numerical modeling for new park on the Hudson River in NYC.
Next Generation New York Project


Assisted New York City Housing Authority with visioning process for three of its public housing developments.

Sectors We Serve

Maritime · Ports & Terminals · Oil & Gas · Power · Industrial · Utilities · Heavy Civil · Rail · Transportation · Waterfront · Community · Economic · Disaster Recovery · Resilience

What Our Clients Say

Decision-makers choose CAS Group. We provide services to investors, owner/operators, consultant teams, and government agencies. Client satisfaction is our goal as evidenced by word-of-mouth referrals and repeat clientele.

Click here for a representative list of CAS Group’s clients.