Our Expertise
Dependable management support services for basic to highly complex operations of major joint ventures, A/E firms, government entities, and commercial businesses.

JAT professionals are highly skilled in program and project management, financial management, accounting, office engineering, and administrative services. We provide assistance, training, and staff augmentation in a wide variety of critical daily operations. JAT enhances client workflow and reduces overhead costs.

JAT personnel integrate seamlessly into a client’s workplace or project team, providing highly personalized service and unwavering dependability.  We match our proven expertise and staff resources to the needs of each client, not only taking into consideration technical requirements, but also the organization's culture, management style, and team dynamics. 

JAT serves clients throughout the United States and is particularly well known in the Southeast.


2018 WTS Diversity Leadership Award: significant role in City of Atlanta Department of Watershed Management/ Department of Aviation Small Business Development Program

Greater Atlanta Economic Alliance's Small Business Award: outstanding achievement and contribution to diversity within construction and transportation industries

Cobb County, Georgia’s Chamber of Commerce Top 25 Small Businesses of the Year: awarded twice for successful growth, innovative services, and contribution to community projects

Management Team
Dedicated to ensuring smooth, cost-effective processes that explicitly fulfill client requirements and meet operational challenges.


Jo Ann Tuttle

With over thirty years of experience in financial and corporate office management and process administration, Jo Ann Tuttle has become a recognized business leader. Prior to launching JAT, Ms. Tuttle directed corporate and field office management activities at HNTB, one of the world’s leading architectural and engineering firms. Learn more » 


Laura Cook
Vice President, Operations

Laura Cook has over twenty years of financial, program,  and administrative management experience working with architectural and engineering firms and within municipal and county governments.  Ms. Cook is a proven expert in construction administration, accounting, and administrative management. Learn more »


Jeffrey Petersen, CPA
Manager, Accounting Services

Mr. Petersen came to JAT from a 30-year career with Cobb County in Metro Atlanta that included financial management, accounting operations, budget oversight, and long-range planning. He is highly skilled in the application of GAAP, GAAS, and GAGAS. Learn more »

Rachel Bembry, CPA
Vice President, Government Services

Rachel Bembry has extensive financial management experience in the government and private sectors, providing smoother audits, increased efficiency, and optimal financial performance. She is highly proficient in the application of FAR, GAAP, GAAS, and GAGAS. Learn more »


James L. Tuttle, P.E.
Management Consultant

Mr. Tuttle joined JAT Consulting Services, Inc. in 1994, following a long and distinguished career as a Partner, Southeast Division President, and Aviation Service Group Chairman of HNTB. Heis an expert in analyzing business operations, reviewing systems, and providing workable solutions to meet client needs. Learn more »