City and Sea Group LLC - CAS Group - provides professional consulting services focused on two distinct, but related, practice areas.

  • Planning & Public Engagement Services  encourage participation of residents and stakeholders in a variety of urban planning, policy making, and development projects. Sectors served include visioning, disaster recovery and reconstruction, economic and industrial development, community development, transit and transportation, and more.
  • Infrastructure & Technical Services  cover all phases of infrastructure development from concept to completion. We have capabilities to handle both marine and land-based projects from feasibility studies and site selection, to contract and concession negotiations, program management, and construction supervision.

Linking people with the process.

At a minimum, every project must meet technical requirements, comply with the regulatory framework, respect environmental conditions, and meet budget and schedule. CAS Group believes that real success also relies on building relationships and effectively linking people with the process. Plans and projects should reflect and respect the goals and aspirations of the client and the community as well as build support for implementation.

Success is a balancing act.

Every project has to deal with competing interests. How to balance community input and technical considerations? How to manage project resources and stakeholder expectations? How to get the job done right and on time? CAS Group has the right combination of technical knowledge and practical know-how to balance issues, build consensus, take action, and deliver.

National and global perspective.
CAS Group staff have worked in more than 21 States and 17 countries around the globe. We understand that each project, each community, each client is unique and we can operate effectively within different cultural, regulatory, and political environments. In addition, we understand the domestic and international issues that can play a role in your project's success.

Flexible and responsive.

No job is too big or too small. As a privately-owned small business we have flexibility to respond to our clients’ needs and to find innovative solutions.       

Right Expertise, Right Tools, at the Right Time

CAS Group provides well-respected expertise – who you need, when you need them – through our core team complimented by subject matter experts with whom we have long established relationships.

CAS Group is a certified DBE/WBE/SBE/HUB enterprise in Texas. It is also DBE/WBE certfied in the States of New York and New Jersey as well as DBE in Florida and Louisiana. CA, MD, and PA certifications are pending.

Click here for our one page Capability Statement summarizing company information and service offerings.

Majid Yavary, P.Eng.

Senior Vice President & Partner

Mr. Majid Yavary heads the Technical Advisory, Project Management, and Project Delivery practice at CAS Group. He is a leader in his field and has a rare combination of exceptional technical knowledge, business acumen, management skills, and strong commitment to client satisfaction. Mr. Yavary has delivered more than $3 billion dollars worth of infrastructure. 

Mr. Yavary is a Ph.D. candidate in Coastal Engineering and holds a M.S. and B.S. in Civil Engineering.

Jennifer K. Lindbom, AICP
President & Founder

Ms. Jennifer Lindbom leads the Planning and Public Participation practice at CAS Group. She has worked for more than 20 years on integrating public and stakeholder input in planning, design, and development projects around the globe. Ms. Lindbom holds a Masters of Urban Planning from New York University and was admitted to the American Institute of Certified Planners in 2002.


About CAS Group

CAS Group increases its presence in the NY region January 2018 - CAS Group secured office space in NYC, hired an exceptional Public Affairs Specialist to support public engagement projects, and was certified as a WBE by the City of New York.

Firm is a Registered Engineering Firm in the State of Texas November 2017 - The Texas Board of Professional Engineers officially registered CAS Group to offer and perform engineering services in the State of TX.

CAS Group is a registered engineering firm in Florida April 2018 - The State of Florida Board of Professional Engineers approved CAS Group as a certified engineering company. 

Christopher Carr, PE, Joins CAS Group as VP for Technical Services May 2017 - Mr. Carr has over 40 years domestic and international experience on coastal and waterfront engineering, marine structures, ports and marine terminals, and management of large and complex projects. CAS Group is pleased he has joined our Team and can further support our clients with his exceptional expertise and experience.

CAS Group certified as a DBE by the States of CA, FL and LA November 2017 - This is in addition to existing certifications in TX, NY, and NJ. Certifications are pending in  MD and PA.


CAS Group Secures WBE, DBE, SBE, and HUB Certifications in the State of Texas April 2017 - CAS Group is now officially certified in the State of Texas as a Woman-Owned Business Enterprise (WBE), Disadvantaged Business Enterprise (DBE), Small Business Enterprise (SBE), and Historically Underutilized Business (HUB).

This is in addition to WBE/DBE Certifications in NY and NJ. Certifications are pending for CA, MD, and PA.

Our past projects demonstrate that a small business can perform exceptionally on challenging projects and we look forward to continuing to build that reputation with clients and partners.