Who We Are

JGMIII is an agricultural engineering consulting firm that provides design assistance to the dairy industry. Since 1991, we have specialized in building and facility designs, manure management systems and animal comfort systems. Our staff has successfully designed and built state of the art dairy projects, both domestic and international.

At JGMIII we ensure that your project has the right equipment to allow you to concentrate on the daily operations of your dairy. While we are not equipment sales, we do recommend equipment for your project based on your unique requirements and situation. We do not receive any commission or incentive from any manufacturer to use their equipment or supplies in our designs.

Our approach to design is unique and one that we believe provides the best outcome for our clients.

JGMIII Dairy Design Engineers are problem solvers intent on providing our dairy clients with innovative engineering solutions with an emphasis on integrity, quality, practicality, animal welfare, and cost effectiveness. Our professionals will be in the forefront of new technologies, be client-oriented, and uphold the highest professional standards in the practice of agricultural engineering. We value dairy producers as the industry experts they are and strive to assist them to reach their own goal of achieving a productive and profitable dairy business.
JGMIII Dairy Design Engineers believes that continuously striving to excel at the following core set of values will lead to long-term profitability, growth and enhanced ability to serve our clients.

Act with Honesty and Integrity – Honesty and Integrity must always be at the core of the decisions we make every day. Both of these attributes are held in the highest regard at JGMIII.
Constantly Focus on Quality – All JGMIII employees work toward producing the highest quality work.
Provide Professional and Technical Excellence – Providing Professional and Technical Excellence to our clients is at the root of what we do. Continually improving our employees’ skills allows us to deliver on this core value.
Promote a Cooperative Team Environment – JGMIII‘s goal is to collaborate with all team members associated with our projects including clients, partners, subcontractors, sub-consultants, vendors, regulatory authorities and our employees. Working in such an environment allows the Company to make informed and efficient resolutions to even the most complex issues.
Respect for our Employees, Clients, Partners, Vendors and Subcontractors – Treating others with respect allows us to demonstrate the professionalism that is expected by co-workers and clients. Respect helps to facilitate and encourage a cooperative team environment and collaboration that is necessary to provide excellent service to our clients.
Cultivate Long-Term Relationships with our Clients – We believe that every project is an opportunity to develop a long-term relationship with our clients. By constantly delivering what our clients ask of us and adhering to our core values, we forge long-term relationships that provide ongoing work throughout time.

Dairy farming has been in my family for over 125 years. Our family’s first dairy in Louisiana was started by my grandfather’s grandfather sometime after the Civil War. My maternal grandfather, Louis Pesson, from New Iberia, Louisiana was presented the 1953 Louisiana Outstanding Dairyman Award. Two years later in 1955 he was presented with the Master Farmer Family Award by Progressive Farmer and Louisiana State University. Subsequent generations have strayed to academia and consulting, but, in our hearts, none of us are far from the farm.

“I know of no pursuit in which more real and important services can be rendered to any country than by improving its agriculture, its breed of useful animals, and other branches of a husbandman’s cares.”

George Washington

Our Clients

No matter where you are located, we provide you, our client, with the highest quality service. Our success is measured in satisfied clients . . . this is the reason you choose JGMIII Dairy Design Engineers for your project.

Our National clients
Our National Clients
Milking Centers
Our International Clients

Our Team

Our team members have been providing agricultural engineering design services, both nationally and internationally, since 1992.  Our designs are based on sound design principles, state-of-the-art animal comfort techniques, and flexible management.  We have authored numerous technical publications and given many presentations related to agricultural farming and we are actively engaged in our community.


Jake Martin

Joseph G. “Jake” Martin, III, PE, MS

Owner | President

Office. 352-371-4655
Cell. 352-359-1356
Email. jake@dairydesign.com
Skype: dairydesign

Jake’s experience encompasses all phases of dairy design, including facility design, waste management, construction, environmental permitting and monitoring, and renovations and maintenance. He is very familiar with procedural, political, and technical aspects of environmental regulations.
Rachael Kent

Rachael B. Kent, PE, MS

Project Manager

Office. 352-240-1551
Cell. 352-231-9864
Email. rachael@dairydesign.com

Growing up in a rural town outside of Jacksonville, FL, Rachael has always had an interest in designing animal housing, that was both safe and economical for humans, as well as comfortable and suitable for the animals.

Rachael has worked with JGM since 2009 designing multilevel dairy facilities. Her responsibilities include designing freestall barns, milking centers, waste systems, and the overall facility site plan layouts.

When she is not working, she enjoys spending time with her family, riding horses, hiking, boating, cheering on the Crimson Tide football team, and training for triathlons.

Wei Zhao, MS

Project Engineer

Office. 352-371-4655
Cell. 352-727-1245
Email. zhaowei@dairydesign.com

Zhaowei grew up in Tianjin, China and received his BS degree in Agricultural Engineering from China Agricultural University in Beijing. After working for a Beijing-based dairy design company for 2 years he moved to Gainesville, Florida in 2013 where he received his MS in Agricultural Engineering from the University of Florida. He is now a full-time project engineer with JGMIII and has a bright future with us!

JGMIII Consultants

Dennis Armstrong

Dennis V. Armstrong

Professor Emeritus
The University of Arizona Dairy Science Department
Tucson, Arizona USA

Cell. 520-906-2182
Email. dvarmstrong@comcast.net

Our collaboration with Dennis Armstrong goes back over 20 years, and it was Dennis that made the existence of this company possible. He is our key dairy scientist and mentor, and brings over 50 years of dairy herd management, dairy research and cow comfort knowledge to the team.

Dennis is known throughout the world in the area of large dairy herd management, with a special emphasis on cow comfort. He focuses on the layout and design of animal housing, milking parlor and youngstock facilities, as well as methods to reduce environmental stress (extreme heat and cold).

Dennis has consulted on herd management, dairy feasibility studies and dairy designs in 23 countries, including Argentina, Australia, China, Egypt, England, Germany, Greece, Hungary, India Ireland, Jordan, Kuwait, Madagascar, Malaysia, Mexico, New Zealand, Oman, Pakistan, Saudi Arabia, Spain, Taiwan, Thailand, Turkey, United Arab Emirates and Vietnam. He has published 390 publications and lectured on dairy herd management around the world.

Simon Godden

Simon J. Godden

SJGlobal Dairy Consulting
Mahia, New Zealand

Cell. +646-837-5778
Email. simon_godden@hotmail.com

Simon is the newest member of our design team and brings a wealth of real-world dairy experience to the mix. He has over 37 years of experience in developing and managing dairy farms in countries as diverse as Brazil, Madagascar, Saudi Arabia, China, The UK and New Zealand.

The primary emphasis of his company, SJGlobal Consulting, combines a unique blend of both management and development skills in consulting with International dairy clients, working with dairy global projects with a wide diversity of management systems. Specialties include: dairy facility layout from a management perspective, dairy site selection and evaluation, animal handling systems, efficient cow traffic systems, dairy management system development and training, equipment determination, specification and animal recommendation, sourcing and selection. As with Dennis Armstrong, our collaboration with Simon allows us to offer a broad perspective of cow-centric aspects to dairy designs.