Johnson, Spellman & Associates, Inc. (JSA) is an Atlanta‐based mechanical engineering firm, providing HVAC, Plumbing, Fire Protection, Fuel System, and Infrastructure Engineering Services to clients ranging from Data Centers and Mission Critical Environments, Education and Institutional Projects, to Civil and Healthcare Facilities. Since its incorporation in 1986, the two‐man firm has evolved into a fully staffed engineering company. JSA provides a wide range of services from concept budgeting and programming to construction review and special investigation of all types of systems. Our design and construction experience includes an extensive portfolio of commercial, institutional, and industrial facilities. We’re licensed in 40 states across the U.S. Our extensive knowledge in a vast array of designs ensures that JSA is here to uphold sound engineering and business practices through ongoing employee development and mentoring. We know that the future of this industry is grounded in passing the torch to the next generation of engineers. We actively promote ongoing education, professional development, and support professional engineering registration.