About Us

The engineers of choice for Oklahoma.

As Oklahomans, we know the lay of the land. As engineers, we are stewards of resources and projects to help sustain our communities.

Cowan Group Engineering (CGE) was founded in 2012 with engineer Jeff Cowan, two others, and a mission to serve our state as effective engineers who manage resources effectively and build sustainability. Since then, we’ve grown to 45+ employees, each with Oklahoma-specific experience in civil engineering, water and wastewater,  transportation, land planning, land survey and construction management.

CGE is a privately held, professional engineering and consulting firm based in Oklahoma City. We serve clients throughout Oklahoma with quality and timely service. We offer a range of civil engineering and land survey services, and our clientele includes city, county and state governments, and other engineering firms.

Our diverse, local expertise means that we know the right questions to ask and how to communicate the answers effectively. CGE's project management style balances sustainability and efficiency through organized projects in a timely manner, ensuring that it is cost-efficient and provides long-term quality for you.

Our team has a strong sense of resolve, and we understand the advantages of delegating to competent staff and working together. We have excellent communication and highly-developed management skills with strong organizational abilities. We pledge to communicate well with you in a way that balances technical issues and good common sense. Together, the CGE team brings a can-do attitude, diverse local experience, candid listening, expert knowledge, and key relationships within the industry.

Jeff Cowan, P.E.

Jeff Cowan, P.E.

CEO, Principal

Cowan Group Engineering started with founder Jeff Cowan, P.E. after many years of serving the State of Oklahoma in various roles and positions in the engineering industry. With more than 30 years of experience, Cowan has managed private, federal, state, and local government projects throughout Oklahoma. His primary technical experience is design and construction management, but he has spent extensive time in private development, understanding the process between both municipalities and developers. Today, Cowan’s projects span the state with innovations in transportation, water, and wastewater improvement projects.

Sean Fairbairn

Sean Fairbairn, P.E., C.F.M


Mr. Fairbairn has more than 11 years of experience working with municipalities, state agencies, and private entities for the planning, design, construction, and management of water and wastewater facilities, storm water and drainage, transportation, and development projects.  Sean has extensive technical experience in engineering design and modeling to provide comprehensive solutions for sustainable projects.

Michael Taylor

Michael Taylor, P.E.


Mr. Taylor has more than 10 years of experience in civil engineering and is responsible for the design and preparation of detailed plans and reports for municipal, state and development projects. He has extensive experience in public water supply and wastewater regulatory compliance, planning, design and construction. His ability to perform engineering inspections, conduct research and provide technical assistance to consultants, engineers, and municipalities makes him a valuable asset to CGE.

Michael Taylor

Robert Rose, P.E.


Mr. Rose has more than 20 years of experience with private, local and state entities. He has expertise in performing design, engineering, construction oversight and management of Interstate, Interchange, Rural and Urban Highway, ADA Sidewalk/Trail, and Municipal Street projects. He is responsible for overseeing all transportation related design for local and state projects at CGE. His vast knowledge of transportation design and construction practices has accelerated the growth of the CGE Transportation Team.

Cowan Group Engineering
7100 N. Classen, Suite 500
Oklahoma City, OK 73116
(405) 463-3381