About Jenkins/Gales & Martinez, Inc.

JENKINS/GALES & MARTINEZ (JGM) is a comprehensive Architectural,
Engineering, Planning, Program and Construction Management firm serving
Southern California.

Firm Profile

Jenkins/Gales & Martinez (JGM) was founded in 1981, and today is one of the largest minority-owned firms in the field (a certified MBE firm). The firm has demonstrated the technical ability and the financial stability required to conceptualize, develop, and implement projects of a broad range of building typologies. Headquartered in Los Angeles, our principals are engaged and available to meet with clients, staff, and stakeholders over the life of a project. Chairman/CEO, Earl E. Gales, Jr., leads a staff of more than 120 professionals committed to providing the highest level of service to public and private sector clients.
The organization has grown significantly based on a collaboration of talent in the areas of key senior level personnel, size and types of projects completed, and proven competency as a professional services organization. JGM has provided numerous agencies throughout Southern California with a full range of services ranging from Urban Planning, Architectural Design, Civil and Transportation Engineering, as well as Program and Construction Management. JGM has been fortunate to fill significant roles for federal, state and local governments and a
variety of civic organizations in the development of major institutional facilities, commercial buildings, transit/transportation, public works infrastructure, housing, and educational facilities. With architects, engineers, planners, and construction specialists on staff, JGM provides
the finest quality research and technical assistance available to assure the successful completion of a project.
Corona City Hall
Corona, CA
JGM deploys a flexible matrix approach to staffing, which supports a structuring and assignment of responsibilities in response to the evolving needs of a project, and encourages the most appropriate and creative use of the talents of team members. Working as part of an integrated team, JGM’s staff always strives to add value to any project assignment and to be proactive regarding the commitments and goals of the project.variety of civic organizations in the development of major institutional facilities, commercial buildings, transit/transportation, public works infrastructure, housing, and educational facilities. With architects, engineers, planners, and construction specialists on staff, JGM provides
the finest quality research and technical assistance available to assure the successful completion of a project.
Pershing Square Metro Rail Station
Los Angeles, CA

JGM offers:

  • Needs/Resources/Design Framework: This is a reiterative process aimed at Excellence in Design, in which Needs are determined through an ongoing discourse with Stake-holders; Resources encompass the assets and tools necessary for meeting these needs; and Design entails the development of procedural and physical alternatives that meet these needs within the resources available. Evaluation of successive alternatives within each Needs/Resources/Design cycle leads to excellence in Design.
  • Capacity to Perform: With over 120 highly qualified staff members located in Southern California, our team can provide specialists in many diverse fields. Each staff member has a proven track record of completing assignments on-time, within budget, and meeting the Client’s goals and aspirations.
  • Rapid Deployment: The combined size and diversity of professional staff, coupled with our mode of operation, ensures rapid deployment of the core personnel with an inherent ability and flexibility to allow expansion of the team to cater to specific project needs and requirements.
  • Project Controls: Our advanced management systems and techniques allow us to call upon any specialty personnel required to carry out responsibilities as needs are identified. Providing professional services on a Just-In-Time basis produces efficiencies in project development and implementation, and our local presence and depth of personnel resources allows JGM to cost-effectively deliver the level of service required.

Team Profiles

Ryan Gales

Ryan Gales



Ryan Gales has almost 15 years of providing outreach, training and development services. He has chaired job fairs, outreaching to DBE firms for the Crenshaw/LAX Metro Line in Los Angeles, and to individuals for the Indianapolis International Airport, where he also trained a staff of over 20. His experience as a project manager for former Los Angeles Mayor James Hahn provided him the experience in hosting outreach and community meetings in areas of Watts and South Los Angeles in developing plans of action to address “Quality of Life” issues. His extensive experience in the field has garnished him the ability to work closely with various city, county and local organizations.

Earl E. Gales Jr.

Earl E. Gales Jr.



Earl E. Gales Jr., is Chairman and Chief Executive Officer of Jenkins/Gales & Martinez, Inc., one of the nation’s largest minority-owned architecture, engineering and construction management firms. Mr. Gales has more than thirty-five years of experience in Urban Design, Planning, and Construction Management. For the past twenty-five years, he has been responsible for the overall operation of the firm which offers vast resources to manage all aspects of design and construction of public and private facilities throughout the western United States and abroad.

Mr. Gales founded the firm in 1981 as a result of an acquisition of the Jenkins Corporation. Jenkins/Gales & Martinez, Inc. currently employs more than 70 employees in two states with two offices in California. His primary areas of focus have been in the areas of transportation design, project management, and construction management.

The firm boasts as its major projects the Los Angeles Metro Rail/General Engineering Consultant; Eastside Transit Project; High-Speed Rail System in California; LA Community College District; City Hall Seismic Rehabilitation; Martin Luther King Hospital; Compton Community College, and the Alameda Corridor.

Mr. Gales has co-authored three books, and authored a book on African art and architecture, infrastructure development for various African countries (West and South Africa), and has written numerous articles on topics including multi-family housing development, transportation policy, and design, correctional facilities, and the delivery of educational planning and design. Additional topics have included air transportation infrastructure in West Africa; the design of small correctional facilities; the effects of integration on real estate values; and the impact of transportation systems in the minority community.

Mr. Gales is a Board Member of the Cedars-Sinai Hospital Board/Sports Spectacular, UCLA/Graduate School of Arts and Architecture, UCLA Board of Counselors, Loyola Marymount University Engineering School, African American Unity Center, Vermont Village Community Development Corporation. He is also past Chairman of the Young Presidents’ Organization, Bel Air Chapter.

Mr. Gales has been an advisor to two U.S. Presidents and Vice Presidents on infrastructure planning policy and was most recently advisor to former Vice President Al Gore on domestic transportation and infrastructure development, and African affairs. He has recently completed a report on The Effects on Government Policies in Domestic Business.

Mr. Gales holds a B.S. degree in Urban Planning/Civil Engineering from Cal Poly Pomona University, an M.A. in Architecture and Urban Design from UCLA.

Mark R. Colopy

Mark R. Colopy



Mark Colopy has more than 30 years of experience in the field of Architecture and Construction/ Project Management on major municipal and commercial facilities throughout the United States. As a principal architect, Mr. Colopy is responsible for project management, construction administration from schematic design through construction completion. Mark is adept at managing complex projects requiring the leadership necessary for achieving a well-orchestrated balance of monitoring, accountability, and communication.

He is well versed in current project and data control procedures, applying them to multi-phased, multi-task projects to achieve schedule and budgetary goals. His responsibilities include developing and maintaining client/owner and designer relationships; supervising and directing contractors and subcontractors; establishing and executing change orders and claims resolution means; providing contract procurement, administration, and monthly progress reporting; as well as cost control and budget/schedule updates. Other responsibilities include developed design and production budgets; led RFP’s for consultant services tracking billings and contract performance; chaired design presentations to clients; analysis of RFI’s from several projects to assess areas for improvement in project design and documentation; and maintained team meeting concept focusing and empowering each team member to perform autonomously and within the scope of design and production parameters.

Earl “EG” Gales III

Earl “EG” Gales III

Vice President


Earl “EG” Gales III is Systems Administrator with over 18 years of experience in project management and leadership spanning the education, transportation and consulting industries. Born and raised in Los Angeles, California, Earl attended UCLA in Westwood, California. After earning his bachelor’s degree in Applied Mathematics, Earl started his career in the construction industry with JGM, where he led projects for the design of computer networks for various construction projects for the Alameda Corridor. After earning his Microsoft Systems Engineering certifications, Earl joined the AECOM/JGM team to work with the Los Angeles Community District renovating and building new schools. Earl is a certified Cisco Associate and working toward becoming a Professional Project Manager (PMP). He enjoys spending time with his partner, Genn, and their two kids, Sung-hee and Min-Jee. His favorite past-times include golf, soccer, traveling, and fishing. Earl is also a frequent visitor to local sporting events to support his favorite basketball, baseball and soccer teams.

Efrain Sanchez

Efrain Sanchez

Project Architect


Efrain Sanchez is a California Licensed Architect with over 33 years’ experience as a job captain and project architect. He is recognized as a team player and innovative thinker in resolving design and construction issues. He is detail orientated, self-motivated, and able to anticipate possible obstacles and plan for them in concert with clients, governing officials, and the project team. Born into a bi-lingual household in Los Angeles, Mr. Sanchez is extremely fluent in both Spanish and English.

Our History

JGM evolved out of the leadership of its founder, Carey K. Jenkins, and a subsequent collaboration with a bright team of professionals led by Earl E. Gales, Jr. JGM has grown to merge the talents of architects, planners, engineers, urban designers, and construction specialists.

To read more about our company’s history: