Automation System Integrators is a second generation firm dedicated to providing superior solutions for various applications within the industrial and commercial industries.  Our founder, Charles DeBusk, Sr., began working in the temperature control and process control industry in 1954 at Johnson Controls as construction manager and continued his employment there until 1985 when he started his own business.

Charles worked in the business daily from 1985 until his passing in 2000. During his tenure, the company experienced many evolutions such as the complete transformation of control systems from pneumatic/electric/solid state to state of the art microprocessor based control systems that could be operated from a single personal computer.

Charles’ son, David DeBusk, started at Johnson Controls in 1973 and served as Engineering Manager until 1985 when he went with Charles to assist  with the new business.

David manges and operates Automation System Integrators today on a daily basis.  He is a hands on type individual and is involved in all aspects of the organization.

Automation System Integrators offers turnkey facility solutions  for Access, Environmental, Fire and Process SCADA systems as well as complete stand alone direct digital control systems.

Our management team is readily available to assist you in the design, fabrication, installation, service and remote monitoring of your various systems.


David L. DeBusk – President

Sharen L. DeBusk – Chief Executive Officer

Capability Statement

Core Competencies
Automation System Integrators has a proven record over the past 30 years in the Building Automation & Environmental Control Industry. We have a management staff that has been in place since the inception of ASI, and have completed over 450 installations during our 30 year span. Our main strengths are integrating facilities that have installed Johnson Controls, Honeywell, and Siemens corporate installed systems, among others, into a government specified “open” system. Also facilitating the design and installation of building automation systems that include smart technology. This Includes access control, integration of HVAC heating and cooling systems, lighting control and energy management within existing facilities, as well as new construction projects.

  • Access Control
  • Direct Digital Controls
  • System Integration
  • Energy Management
  • Energy Dashboards
  • Energy Analytics
  • Lighting Control
  • Process Automation
  • HVAC/R Controls

Past Performance
Department of Veterans Affairs Medical Center located in Mountain Home, Tennessee. This Facility was originally integrated by ASI with an existing Johnson Controls system which consisted of 7,000 hardware points. To date, we have continued to expand and support this facility and the hardware point count has exceeded 22,000 and 56 network control engines.

VA Medical Center in Fayetteville, NC in which we integrated with both a Siemens Apogee Controls System. ASI provided the owner with an open source Tridium system and integrated with a 25,000 point Siemens Apogee system along with installation of native BACnet components manufactured by Alerton.

Great Smoky Mountains National Park – Department of Interior, Gatlinburg, TN. Installation & Maintenance of Building Automation System for the Gatlinburg Park Headquarters Building, Twin Creek & Townsend, TN.

Contact our office for contact information

Most industry issues we solve and product/service solutions we provide is for the federal government. We are involved in federal government facilities competing against corporate owned organizations such as Johnson Controls, Honeywell and Siemens for the design and installation of environmental temperature and energy control systems. Many facilities are comprised of two to four brands of existing systems, which have been installed over time with no simple approach to integrate them all with a single system. Our approach is that we represent a host of manufacturers and possess the skills to integrate all of these existing systems and place them into a single brand system in a cost effective manner.

Our ability to integrate large facilities and campuses.
Our pricing structure is lower than the corporate owned store fronts due to our low overhead and streamlined efficiencies.

  • Our ability to provide customer satisfaction without any constraints from the corporate office.


Company Data
Automation System Integrators is a full service firm from project inception to completion and maintenance. We employ a staff of 25 employees, with our main office located in Seymour, TN and a branch office in Washington DC. We currently service the entire southeast United States.


Company Contact Information and Specific Codes

  • WOSB Program NAICS Codes – 238220, 238210, 237130, 237110, 221330, 221320, 221310
  • Other NAICS Codes – 236210, 236220, 332911, 334220, 334290, 334512, 334513, 334514, 334519, 335314, 423610, 518210,541511, 541512, 541513
  • Small Business, WOSB and EDWOSB (8M)
  • CAGE Code – 6EBB7
  • Point of Contact – Sharen DeBusk, David DeBusk
  • Address – 1549 East Union Valley Road, Seymour Tennessee 37865
  • Office # – 865-579-2562
  • Email – Sharen DeBusk,
    David DeBusk,